The document provides an overview of Android user interface components. It discusses that an Activity contains screens composed of components or screen containers called View Groups or Layouts. Layouts define the arrangement of components. There are six main types of Layouts: LinearLayout, RelativeLayout, TableLayout, FrameLayout, AbsoluteLayout, and GridLayout. It also describes Views, ViewGroups, and how components are specified in XML layout files or programmatically.
Introduction to Android and Android StudioSuyash Srijan
This is a presentation that I gave at Google Developer Group Oxford to introduce people to Android development and Android Studio IDE, which is used to build Android apps. This presentation gives a brief overview of the platform and fundamentals of the app and what developer tools are available.
PS: Some slides do not have any text accompanying it. That is either because it wasn't relevant or because the text would've been too long to put on the corresponding slide.
Fragments allow modularization of activities on larger screens like tablets. A fragment represents a behavior or UI portion and has its own lifecycle callbacks. Fragments can be placed in an activity layout via XML or added dynamically in code. Multiple fragments can be combined in a single activity to build a multi-pane UI. The activity lifecycle influences fragments, and fragments can be retained across configuration changes using setRetainInstance(true).
ASP.NET MVC is a framework from Microsoft that separates an application's logic, presentation, and data access into three distinct components: models, views, and controllers. This separation of concerns makes the application easier to manage, test, and develop for large teams. ASP.NET MVC uses friendly URLs, does not rely on view state or server-based forms, and supports test-driven development better than traditional ASP.NET Web Forms applications.
This document discusses different types of animations in Android including frame-by-frame animation, tween animation, interpolators, and layout animation. Frame-by-frame animation involves playing a sequence of images like a flipbook. Tween animation uses interpolators to transition properties like translation, rotation, scale, and alpha over time. Layout animation applies animations when views are added or removed from a layout. The document provides details on creating animation resources in XML and applying them through code.
Shared Preferences allow you to save and retrieve data in the form of key,value pair. In these slides you will know what is shared preference, its function, methods and example.
This document provides an overview of JSP/Servlet architecture. It describes how a web request is handled from the browser to the web server and JSP/Servlet container. It then discusses key components like servlets, JSPs, the request and response objects. It provides examples of basic servlet and JSP code to output text and access request parameters. It also covers servlet configuration, mappings, and the use of forwards and redirects.
Fragments allow modular and reusable components in an Android application. They are portions of UI for an activity that have their own lifecycle and can be added or removed during runtime. The key aspects are:
- Fragments were introduced in Android 3.0 but can be used in older versions with the compatibility library.
- Their lifecycle is directly tied to the host activity - pausing/destroying the activity also pauses/destroys fragments.
- They are defined as subclasses of Fragment and implement lifecycle methods like onCreateView to define the UI.
- Fragments can be added to activities declaratively in XML layouts or programmatically using transactions.
This document provides an overview of SQLite database usage in Android applications. It discusses that SQLite is an open source database that is included by default in Android Studio. It describes how to create a database class that extends SQLiteOpenHelper to connect to the database and perform CRUD operations. It also provides examples of how to create a table, insert data using ContentValues, and check stored data using an SQL browser tool.
Introduction to Android and Android StudioSuyash Srijan
This is a presentation that I gave at Google Developer Group Oxford to introduce people to Android development and Android Studio IDE, which is used to build Android apps. This presentation gives a brief overview of the platform and fundamentals of the app and what developer tools are available.
PS: Some slides do not have any text accompanying it. That is either because it wasn't relevant or because the text would've been too long to put on the corresponding slide.
Fragments allow modularization of activities on larger screens like tablets. A fragment represents a behavior or UI portion and has its own lifecycle callbacks. Fragments can be placed in an activity layout via XML or added dynamically in code. Multiple fragments can be combined in a single activity to build a multi-pane UI. The activity lifecycle influences fragments, and fragments can be retained across configuration changes using setRetainInstance(true).
ASP.NET MVC is a framework from Microsoft that separates an application's logic, presentation, and data access into three distinct components: models, views, and controllers. This separation of concerns makes the application easier to manage, test, and develop for large teams. ASP.NET MVC uses friendly URLs, does not rely on view state or server-based forms, and supports test-driven development better than traditional ASP.NET Web Forms applications.
This document discusses different types of animations in Android including frame-by-frame animation, tween animation, interpolators, and layout animation. Frame-by-frame animation involves playing a sequence of images like a flipbook. Tween animation uses interpolators to transition properties like translation, rotation, scale, and alpha over time. Layout animation applies animations when views are added or removed from a layout. The document provides details on creating animation resources in XML and applying them through code.
Shared Preferences allow you to save and retrieve data in the form of key,value pair. In these slides you will know what is shared preference, its function, methods and example.
This document provides an overview of JSP/Servlet architecture. It describes how a web request is handled from the browser to the web server and JSP/Servlet container. It then discusses key components like servlets, JSPs, the request and response objects. It provides examples of basic servlet and JSP code to output text and access request parameters. It also covers servlet configuration, mappings, and the use of forwards and redirects.
Fragments allow modular and reusable components in an Android application. They are portions of UI for an activity that have their own lifecycle and can be added or removed during runtime. The key aspects are:
- Fragments were introduced in Android 3.0 but can be used in older versions with the compatibility library.
- Their lifecycle is directly tied to the host activity - pausing/destroying the activity also pauses/destroys fragments.
- They are defined as subclasses of Fragment and implement lifecycle methods like onCreateView to define the UI.
- Fragments can be added to activities declaratively in XML layouts or programmatically using transactions.
This document provides an overview of SQLite database usage in Android applications. It discusses that SQLite is an open source database that is included by default in Android Studio. It describes how to create a database class that extends SQLiteOpenHelper to connect to the database and perform CRUD operations. It also provides examples of how to create a table, insert data using ContentValues, and check stored data using an SQL browser tool.
Android uses Views and ViewGroups to create user interfaces. Views occupy rectangular areas on screen and handle drawing and events. Common widgets like Buttons and TextViews are subclasses of View. Layouts like LinearLayout and RelativeLayout are ViewGroups that position child Views. Layout parameters specify how Views are positioned. Common event listeners include onClick and onTouch, which call registered event handlers when triggered by user interaction.
UI controls in Android provide a variety of interactive components that can be used to build app interfaces, including buttons, text fields, progress bars, checkboxes, and more. TextViews display text and allow editing. Progress bars indicate task completion. TimePickers and DatePickers allow selecting times and dates. Intents describe operations and can launch activities, like calling a web browser to view a webpage from an app. Intent objects contain action and data components to specify the operation.
The document discusses several cloud platforms including Amazon Web Services (AWS), Google AppEngine, and Microsoft Azure. It provides an overview of the services offered by each platform under categories like compute, storage, networking, and others. For AWS, it describes services like EC2, S3, VPC etc and their key concepts. For Google AppEngine, it explains the architecture, runtime environment, storage solutions and application services. For Microsoft Azure, it outlines the core concepts including compute roles, storage options and infrastructure services like AppFabric.
The document discusses the XML DOM (Document Object Model). It defines the DOM as a standard for accessing and manipulating XML documents through a tree structure representation. The DOM defines all elements in an XML document as nodes that can be traversed and modified. It outlines DOM properties and methods for navigating and manipulating the node tree. Advantages of the DOM include its traversable and modifiable tree structure, while disadvantages include higher resource usage compared to SAX parsing.
SQLite is a C-language library that implements a small, fast, self-contained, high-reliability, full-featured, SQL database engine. It is often used for local/client storage in applications. Key points:
- Created by D. Richard Hipp, it provides a lightweight disk-based database that doesn't require a separate server process and allows accessing the database using SQL queries.
- The entire database is stored in a single cross-platform file and can be as small as 0.5MB, making it suitable for embedded and mobile applications.
- It supports common data types like NULL, INTEGER, REAL, TEXT, and BLOB and is used in standalone apps, local
This document discusses consuming web services from mobile applications. It covers common mobile development challenges like limited screen space, CPU power, and bandwidth. It then provides an overview of technologies used to access web services like XML, JSON, REST, and SOAP. Examples are given of using AsyncTask and Services in Android to make asynchronous web service calls. Code demonstrations and additional resources are also referenced.
This ppt tells about struts in java. All the methods and brief knowledge of struts. For more info about struts and free projects on it please visit : http://s4al.com/category/study-java/
Introduction To Mobile Application DevelopmentSyed Absar
This document provides an introduction to mobile application development. It discusses the speaker's background in mobile development. It then covers what mobile computing is, different areas it can be used like business and games. It describes how mobile applications are developed, listing different platforms, languages, and tools used. It discusses salaries for mobile jobs and how to develop for specific platforms like Android, iOS, Windows and more. It promotes cross-platform development and concludes by welcoming the reader to the field of mobile development.
Creating the first app with android studioParinita03
The document provides an overview of Android Studio, the integrated development environment for Android app development. It discusses what Android is, how Android Studio differs from Eclipse, and walks through creating a new project in Android Studio. The key steps covered are installing Android Studio, creating a new project, selecting project options like the application name and form factors, adding an initial activity, and running the app on an Android emulator.
This document provides information about Md.Delwar Hossain, including his education, experience, professional courses, published works, contact information, and areas of expertise in Android development. It also includes summaries of key topics in Android such as what Android is, the Open Handset Alliance, features of Android, categories of Android applications, Android versions and API levels, the Android architecture, core building blocks, and how to install and set up Android development.
Swing is a GUI widget toolkit for Java. It is part of Oracle's Java Foundation Classes (JFC) – an API for providing a graphical user interface (GUI) for Java programs.
The document discusses the different building blocks of an Android application including activities, services, broadcast receivers, and content providers. It provides details on broadcast receivers, describing them as components that respond to system-wide broadcasts and application-initiated broadcasts. The document gives an example of using a broadcast receiver to capture the SMS receive event and launch an activity to display the SMS with an option to reply. It also discusses programmatically sending SMS from an application.
Menus are a common user interface component in many types of applications. To provide a familiar and consistent user experience, you should use the Menu APIs to present user actions and other options in your activities.
This document provides an overview of Angular, including:
- Angular is a JavaScript framework used to build client-side applications with HTML. Code is written in TypeScript which compiles to JavaScript.
- Angular enhances HTML with directives, data binding, and dependency injection. It follows an MVC architecture internally.
- Components are the basic building blocks of Angular applications. Modules contain components and services. Services contain reusable business logic.
- The document discusses Angular concepts like modules, components, data binding, services, routing and forms. It provides examples of creating a sample login/welcome application in Angular.
Introduction to Android development - PresentationAtul Panjwani
A powerpoint presentation on Introduction to android development
prepared for college seminar
[Report is also uploaded named "Introduction to Android development - Presentation Report"]
Source: developer.android.com
An ASP.NET application consists of files, pages, handlers, modules and executable code that can be invoked from a virtual directory. Unlike a Windows application, users do not directly run an ASP.NET application - requests are passed to the ASP.NET worker process. Web pages in the same virtual directory execute in the same application domain. The global.asax file allows handling of application-level events, and configuration is managed through XML configuration files like web.config. ASP.NET uses lazy initialization to create application domains on the first request, and recycles domains periodically to maintain performance.
An interface defines a contract that specifies functionality without implementation. It defines a set of methods that classes implement. Interfaces allow for multiple inheritance by allowing a class to implement multiple interfaces. Interfaces cannot contain data members, constructors, destructors, or static members. Both interfaces and abstract classes cannot be instantiated but interfaces only define method signatures while abstract classes can contain implementations. A class implements an interface by listing the interface name after the class name and providing implementations for all interface methods.
Android is the dominant mobile operating system, founded in 2003 and later acquired by Google. It is an open source platform based on Linux and uses Java for application development. Key points about Android include its virtual machine, growth in the market surpassing Windows, and features like Wi-Fi location services and developer tools. The architecture consists of layers for applications, frameworks, libraries/runtime, and the Linux kernel. The open Android platform allows devices from different manufacturers to share applications and services.
06. Android Basic Widget and ContainerOum Saokosal
This document discusses widgets and containers in Android layouts. It provides examples of common widgets like TextView, ImageView, Button, EditText, CheckBox and DigitalClock. It also demonstrates different container layouts, including LinearLayout, RelativeLayout and TableLayout. Code snippets are given to illustrate how to declare these widgets and containers in an XML layout file named main.xml.
Android uses Views and ViewGroups to create user interfaces. Views occupy rectangular areas on screen and handle drawing and events. Common widgets like Buttons and TextViews are subclasses of View. Layouts like LinearLayout and RelativeLayout are ViewGroups that position child Views. Layout parameters specify how Views are positioned. Common event listeners include onClick and onTouch, which call registered event handlers when triggered by user interaction.
UI controls in Android provide a variety of interactive components that can be used to build app interfaces, including buttons, text fields, progress bars, checkboxes, and more. TextViews display text and allow editing. Progress bars indicate task completion. TimePickers and DatePickers allow selecting times and dates. Intents describe operations and can launch activities, like calling a web browser to view a webpage from an app. Intent objects contain action and data components to specify the operation.
The document discusses several cloud platforms including Amazon Web Services (AWS), Google AppEngine, and Microsoft Azure. It provides an overview of the services offered by each platform under categories like compute, storage, networking, and others. For AWS, it describes services like EC2, S3, VPC etc and their key concepts. For Google AppEngine, it explains the architecture, runtime environment, storage solutions and application services. For Microsoft Azure, it outlines the core concepts including compute roles, storage options and infrastructure services like AppFabric.
The document discusses the XML DOM (Document Object Model). It defines the DOM as a standard for accessing and manipulating XML documents through a tree structure representation. The DOM defines all elements in an XML document as nodes that can be traversed and modified. It outlines DOM properties and methods for navigating and manipulating the node tree. Advantages of the DOM include its traversable and modifiable tree structure, while disadvantages include higher resource usage compared to SAX parsing.
SQLite is a C-language library that implements a small, fast, self-contained, high-reliability, full-featured, SQL database engine. It is often used for local/client storage in applications. Key points:
- Created by D. Richard Hipp, it provides a lightweight disk-based database that doesn't require a separate server process and allows accessing the database using SQL queries.
- The entire database is stored in a single cross-platform file and can be as small as 0.5MB, making it suitable for embedded and mobile applications.
- It supports common data types like NULL, INTEGER, REAL, TEXT, and BLOB and is used in standalone apps, local
This document discusses consuming web services from mobile applications. It covers common mobile development challenges like limited screen space, CPU power, and bandwidth. It then provides an overview of technologies used to access web services like XML, JSON, REST, and SOAP. Examples are given of using AsyncTask and Services in Android to make asynchronous web service calls. Code demonstrations and additional resources are also referenced.
This ppt tells about struts in java. All the methods and brief knowledge of struts. For more info about struts and free projects on it please visit : http://s4al.com/category/study-java/
Introduction To Mobile Application DevelopmentSyed Absar
This document provides an introduction to mobile application development. It discusses the speaker's background in mobile development. It then covers what mobile computing is, different areas it can be used like business and games. It describes how mobile applications are developed, listing different platforms, languages, and tools used. It discusses salaries for mobile jobs and how to develop for specific platforms like Android, iOS, Windows and more. It promotes cross-platform development and concludes by welcoming the reader to the field of mobile development.
Creating the first app with android studioParinita03
The document provides an overview of Android Studio, the integrated development environment for Android app development. It discusses what Android is, how Android Studio differs from Eclipse, and walks through creating a new project in Android Studio. The key steps covered are installing Android Studio, creating a new project, selecting project options like the application name and form factors, adding an initial activity, and running the app on an Android emulator.
This document provides information about Md.Delwar Hossain, including his education, experience, professional courses, published works, contact information, and areas of expertise in Android development. It also includes summaries of key topics in Android such as what Android is, the Open Handset Alliance, features of Android, categories of Android applications, Android versions and API levels, the Android architecture, core building blocks, and how to install and set up Android development.
Swing is a GUI widget toolkit for Java. It is part of Oracle's Java Foundation Classes (JFC) – an API for providing a graphical user interface (GUI) for Java programs.
The document discusses the different building blocks of an Android application including activities, services, broadcast receivers, and content providers. It provides details on broadcast receivers, describing them as components that respond to system-wide broadcasts and application-initiated broadcasts. The document gives an example of using a broadcast receiver to capture the SMS receive event and launch an activity to display the SMS with an option to reply. It also discusses programmatically sending SMS from an application.
Menus are a common user interface component in many types of applications. To provide a familiar and consistent user experience, you should use the Menu APIs to present user actions and other options in your activities.
This document provides an overview of Angular, including:
- Angular is a JavaScript framework used to build client-side applications with HTML. Code is written in TypeScript which compiles to JavaScript.
- Angular enhances HTML with directives, data binding, and dependency injection. It follows an MVC architecture internally.
- Components are the basic building blocks of Angular applications. Modules contain components and services. Services contain reusable business logic.
- The document discusses Angular concepts like modules, components, data binding, services, routing and forms. It provides examples of creating a sample login/welcome application in Angular.
Introduction to Android development - PresentationAtul Panjwani
A powerpoint presentation on Introduction to android development
prepared for college seminar
[Report is also uploaded named "Introduction to Android development - Presentation Report"]
Source: developer.android.com
An ASP.NET application consists of files, pages, handlers, modules and executable code that can be invoked from a virtual directory. Unlike a Windows application, users do not directly run an ASP.NET application - requests are passed to the ASP.NET worker process. Web pages in the same virtual directory execute in the same application domain. The global.asax file allows handling of application-level events, and configuration is managed through XML configuration files like web.config. ASP.NET uses lazy initialization to create application domains on the first request, and recycles domains periodically to maintain performance.
An interface defines a contract that specifies functionality without implementation. It defines a set of methods that classes implement. Interfaces allow for multiple inheritance by allowing a class to implement multiple interfaces. Interfaces cannot contain data members, constructors, destructors, or static members. Both interfaces and abstract classes cannot be instantiated but interfaces only define method signatures while abstract classes can contain implementations. A class implements an interface by listing the interface name after the class name and providing implementations for all interface methods.
Android is the dominant mobile operating system, founded in 2003 and later acquired by Google. It is an open source platform based on Linux and uses Java for application development. Key points about Android include its virtual machine, growth in the market surpassing Windows, and features like Wi-Fi location services and developer tools. The architecture consists of layers for applications, frameworks, libraries/runtime, and the Linux kernel. The open Android platform allows devices from different manufacturers to share applications and services.
06. Android Basic Widget and ContainerOum Saokosal
This document discusses widgets and containers in Android layouts. It provides examples of common widgets like TextView, ImageView, Button, EditText, CheckBox and DigitalClock. It also demonstrates different container layouts, including LinearLayout, RelativeLayout and TableLayout. Code snippets are given to illustrate how to declare these widgets and containers in an XML layout file named main.xml.
While it is technically possible to create and attach widgets to your activity purely through Java code, the more common approach is to use an XML-based layout file. Dynamic instantiation of widgets is reserved for more complicated scenarios, where the widgets are not known at compile time (e.g., populating a column of radio buttons based on data retrieved from the Internet).
With that in mind, this chapter discuss the XML way to lay out Android activity views that way
The document discusses different types of views and view groups in Android user interface development. It describes layouts like LinearLayout, RelativeLayout and FrameLayout that extend the ViewGroup class. These layouts allow arranging views in different orientations using attributes like layout_width, layout_height, layout_weight etc. The document also talks about defining views and layouts in XML files or programmatically at runtime.
This document provides an overview of Android development including the key components of an Android app. It discusses Activities, Services, Content Providers, Broadcast Receivers, Intents, Views, and common UI elements. It also covers how to start Android development using Android Studio and best practices for handling the UI thread and asynchronous tasks. Notifications are demonstrated as well key layout types and the Play Store.
A basic concept about Android, Android Architecture, basic components and basic implementation notes. It also shows how a LinkBudget implementation and design.
Presentation for the workshop by Muhammad Azfar Siddiqui of 10Pearls on the topic of Android Application Development conducted at the NEST I/0, a tech incubator by P@SHA.
Sample codes for the workshop can be followed at:
https://github.com/azfarsiddiqui/android-workshop-pasha
The document discusses user interface (UI) elements and controls in Android and iOS. It provides overviews of common UI elements like buttons, text fields, and layouts in both platforms. For Android specifically, it covers view objects, XML layouts, and getting input from controls. For iOS, it discusses the UIControl class, configuring controls, auto layout, and content for different controls like text fields and buttons.
Vinícius Reis é um consultor mobile e instrutor Xamarin que apresenta sobre desenvolvimento de aplicativos multiplataforma usando Xamarin.Forms. Ele discute como Xamarin.Forms permite compartilhar código C# e UI entre Android, iOS e Windows Phone e fornece exemplos de layouts, controles e integrações com APIs de plataforma e serviços em nuvem.
This document discusses different types of screen orientations in Android including portrait and landscape. It provides 6 examples of how to detect orientation changes at runtime, lock an activity to a single orientation, switch orientations in the emulator and eclipse, and make an app support different screen resolutions.
This document provides an overview of mobile operating systems and Android OS. It discusses what a mobile OS is, features of modern mobile OSs, and how Android OS combines features of a PC OS with mobile-specific capabilities. It also describes Android architecture, the different Android versions, and how to set up the Android development environment.
The document discusses various layout containers used in Android user interface design, including LinearLayout, RelativeLayout, and TableLayout. LinearLayout arranges widgets linearly in a vertical or horizontal orientation. Key properties for LinearLayout include orientation, weight, gravity, padding, and margin. RelativeLayout positions widgets relative to each other and the parent container using positional rules. TableLayout arranges widgets in a grid with rows and columns, where each row is defined by a TableRow container. The document provides examples and details on how to implement each type of layout.
The document outlines the requirements and topics to be covered in an Android training, including developing layouts using XML and Java, running and debugging Android applications, using intents and bundles to pass data between activities, and handling basic data storage using SQLite and memory management. It also provides references and questions for trainees to refer to for more information on Android development concepts and best practices.
UI layouts define the structure and organization of elements in an Android activity's user interface. There are two main options for declaring layouts: in XML files or programmatically in Java code. Common layout types include LinearLayout, RelativeLayout, TableLayout, and FrameLayout. Layout files use a tree structure with attributes like ID, width, height, and weight to position child views. This allows separation of UI design from activity code.
Presented at Big Android BBQ 2015
Hurst Convention Center, Hurst Texas
This talk will cover Fragments in detail by comparing and contrasting them to something we know well, Activities. We will also cover examples and use cases. Fragments: Why, How, and What For? is targeted toward developers who may not have had a lot of experience using Fragments and those who want to understand them better. Why did Google introduce Fragments? Aren’t Activities enough? How do Fragments work? What For? Example and use cases such as Fragment reuse, single pane vs multi-pane, ViewPager, NavigationDrawer and DialogFragment.
This document provides an overview of Android user interface development. It discusses that all UI elements are views or view groups, and that the UI is declared primarily using XML layouts. It then covers common layouts like linear, relative, table and frame layouts. It provides examples of how to define widths/heights, gravity, weights and styles. Finally, it discusses some common widgets like text views, edit texts, lists and buttons.
The document discusses various types of user interfaces in Android. It describes the view hierarchy in Android using ViewGroups and Views as the basic building blocks. It explains common layouts like LinearLayout, RelativeLayout, TableLayout, GridLayout and ListView that can be used to arrange views. Key classes involved include View, ViewGroup, and different view subclasses that serve as widgets. The document also compares Java and Android approaches to designing user interfaces.
Android Workshop for NTU. A getting started guide to android application development.
UPDATE (Oct 2013): An updated slide at http://samwize.com/2013/10/13/android-workshop-2013/
Designing and implementing_android_uis_for_phones_and_tabletsTeddy Koornia
This document outlines design principles and patterns for Android user interfaces on phones and tablets. It discusses the introduction of tablets and goals for the Honeycomb visual design, including enabling flexible and dynamic UIs, simplifying designs, and enabling extensibility. UI patterns like the action bar, multi-pane layouts, and app navigation are covered. A case study of the Google I/O 2011 app demonstrates implementing these patterns.
The document discusses RecyclerView, Cards, and Material Design themes and transitions in Android. It provides code examples for implementing a RecyclerView, creating card views, setting elevations, using material themes, and adding material transitions and animations. It also summarizes ripple drawables, circular reveal animations, and using Toolbar as the app bar.
Material Design is not about design only, it has technical implications too ! in this session Mohammad Aljobairi, senior Android developer, will go through the technical specs and libraries derived for Material Design, he will also talk about some tools of trade that will help you in creating your first Material App. This presentation is part of Amman Android Developers Group (AMMxDROID) and aimed at (independent) mobile developers/designers and enthusiasts.
- The document discusses user interface development in Android, focusing on fragments.
- Fragments allow dividing the user interface into modular sections that can be reused across activities and handle their own lifecycles. This improves separation of concerns and allows dynamic configuration of UI components.
- The example shows a login fragment and account fragment used in both portrait and landscape orientations by inflating different layout files depending on device rotation.
The document discusses different types of layouts in Android, including linear, absolute, relative, frame, and table layouts. It provides examples of how to implement each type of layout using XML code, and describes the properties that control how elements are arranged for each layout type. The key layout types covered are linear (arranges elements horizontally or vertically), relative (positions elements relative to each other and the parent container), frame (displays a single element at a time), and table (arranges elements into rows and columns).
This document provides an overview of beginning native Android app development. It discusses Android app structure including the manifest, activities, intents and lifecycles. It also covers common Android views and layouts, accessing device capabilities like the camera and location, working with data via content providers, and rendering with OpenGL. Example code is provided for various app features like input handling, scrollable lists, and camera access. The document concludes with the process for submitting an app to the Google Play Store.
The document discusses various Android widgets such as TextView, ImageView, EditText, CheckBox, and RadioButton. It provides code examples for how to implement each widget in an Android application. For TextView, it demonstrates how to display simple text. For ImageView, it shows how to display an image. For EditText, it explains how to create an editable text field. For CheckBox, it provides an example of a checkbox that can be checked or unchecked. And for RadioButton, it discusses using radio buttons within a RadioGroup so that only one can be selected at a time.
The document discusses Android layouts and input controls. It covers defining layouts in XML with elements like ViewGroup and View. Layout files use attributes like ID, width, and height. Common layouts include LinearLayout and RelativeLayout. Activities load layouts in onCreate() with setContentView().
The document discusses different layouts used in Android user interface design including constraint layout, frame layout, linear layout, relative layout, grid layout, scroll view, and table layout. Constraint layout allows flat view hierarchies and is supported by design tools. Frame layout displays a single child at a time. Linear layout arranges views horizontally or vertically. Relative layout positions views relative to each other. Grid layout organizes views into rows and columns. Scroll view enables scrolling of content that exceeds the screen size. Table layout structures content into rows and columns.
mobile application development -unit-3-TejamFandat
The document discusses various components of mobile application development in Android including control flow, application components like activities and services, Android application directory structure, and layouts. It describes key files like AndroidManifest.xml and important folders like java, drawable, layout, and mipmap. It also explains different types of layouts like linear layout, relative layout, frame layout, and table layout along with code examples.
This document discusses basic widgets in Android user interfaces. It describes labels, buttons, edit texts, check boxes, spinners, radio groups, radio buttons, images views and image buttons. Labels are used to display text and are not editable. Buttons allow clicking actions. Edit texts are editable like text boxes. Check boxes represent two-state selections. Spinners display a single child like a drop-down list. Radio groups contain radio buttons where only one can be selected at a time. Images can be displayed using image views and buttons. All widgets extend from views and can set properties for visibility, background, focus and enabled status.
Similar to Android Screen Containers & Layouts (20)
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UPRAHUL
This Dissertation explores the particular circumstances of Mirzapur, a region located in the
core of India. Mirzapur, with its varied terrains and abundant biodiversity, offers an optimal
environment for investigating the changes in vegetation cover dynamics. Our study utilizes
advanced technologies such as GIS (Geographic Information Systems) and Remote sensing to
analyze the transformations that have taken place over the course of a decade.
The complex relationship between human activities and the environment has been the focus
of extensive research and worry. As the global community grapples with swift urbanization,
population expansion, and economic progress, the effects on natural ecosystems are becoming
more evident. A crucial element of this impact is the alteration of vegetation cover, which plays a
significant role in maintaining the ecological equilibrium of our planet.Land serves as the foundation for all human activities and provides the necessary materials for
these activities. As the most crucial natural resource, its utilization by humans results in different
'Land uses,' which are determined by both human activities and the physical characteristics of the
land.
The utilization of land is impacted by human needs and environmental factors. In countries
like India, rapid population growth and the emphasis on extensive resource exploitation can lead
to significant land degradation, adversely affecting the region's land cover.
Therefore, human intervention has significantly influenced land use patterns over many
centuries, evolving its structure over time and space. In the present era, these changes have
accelerated due to factors such as agriculture and urbanization. Information regarding land use and
cover is essential for various planning and management tasks related to the Earth's surface,
providing crucial environmental data for scientific, resource management, policy purposes, and
diverse human activities.
Accurate understanding of land use and cover is imperative for the development planning
of any area. Consequently, a wide range of professionals, including earth system scientists, land
and water managers, and urban planners, are interested in obtaining data on land use and cover
changes, conversion trends, and other related patterns. The spatial dimensions of land use and
cover support policymakers and scientists in making well-informed decisions, as alterations in
these patterns indicate shifts in economic and social conditions. Monitoring such changes with the
help of Advanced technologies like Remote Sensing and Geographic Information Systems is
crucial for coordinated efforts across different administrative levels. Advanced technologies like
Remote Sensing and Geographic Information Systems
9
Changes in vegetation cover refer to variations in the distribution, composition, and overall
structure of plant communities across different temporal and spatial scales. These changes can
occur natural.
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
Main Java[All of the Base Concepts}.docxadhitya5119
This is part 1 of my Java Learning Journey. This Contains Custom methods, classes, constructors, packages, multithreading , try- catch block, finally block and more.
This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
বাংলাদেশের অর্থনৈতিক সমীক্ষা ২০২৪ [Bangladesh Economic Review 2024 Bangla.pdf] কম্পিউটার , ট্যাব ও স্মার্ট ফোন ভার্সন সহ সম্পূর্ণ বাংলা ই-বুক বা pdf বই " সুচিপত্র ...বুকমার্ক মেনু 🔖 ও হাইপার লিংক মেনু 📝👆 যুক্ত ..
আমাদের সবার জন্য খুব খুব গুরুত্বপূর্ণ একটি বই ..বিসিএস, ব্যাংক, ইউনিভার্সিটি ভর্তি ও যে কোন প্রতিযোগিতা মূলক পরীক্ষার জন্য এর খুব ইম্পরট্যান্ট একটি বিষয় ...তাছাড়া বাংলাদেশের সাম্প্রতিক যে কোন ডাটা বা তথ্য এই বইতে পাবেন ...
তাই একজন নাগরিক হিসাবে এই তথ্য গুলো আপনার জানা প্রয়োজন ...।
বিসিএস ও ব্যাংক এর লিখিত পরীক্ষা ...+এছাড়া মাধ্যমিক ও উচ্চমাধ্যমিকের স্টুডেন্টদের জন্য অনেক কাজে আসবে ...
How to Make a Field Mandatory in Odoo 17Celine George
In Odoo, making a field required can be done through both Python code and XML views. When you set the required attribute to True in Python code, it makes the field required across all views where it's used. Conversely, when you set the required attribute in XML views, it makes the field required only in the context of that particular view.
How to Add Chatter in the odoo 17 ERP ModuleCeline George
In Odoo, the chatter is like a chat tool that helps you work together on records. You can leave notes and track things, making it easier to talk with your team and partners. Inside chatter, all communication history, activity, and changes will be displayed.
A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Dr. Vinod Kumar Kanvaria
Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
International FDP on Fundamentals of Research in Social Sciences
at Integral University, Lucknow, 06.06.2024
By Dr. Vinod Kumar Kanvaria
2. Android UI: Overview
• An Activity is the front end component and it can contain
screens.
• Android screens are composed of components or screen
containers and components within the containers
• Screen containers are called View Groups or Layouts. Layout
defines the arrangement of components within the
containers.
• All components are called views
• android.view.View.* = base class for all widgets and
ViewGroups
– sub-classes include: TextView, ImageView, button, EditText etc
• android.view.ViewGroup = It is base class for layouts and
views containers.
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3. Views and View Groups
• Each component in the screen is either a View or
ViewGroup object
• The Screen specification may be expressed either in
XML or in program
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4. View Groups or Layouts
• The screen container and component specification can be written in XML
format. These are called XML layouts
• Android considers XML-based layouts to be resources, and as such layout
files are stored in the res/layout directory
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5. ViewGroup or Layout
• There are six types of Layouts:
1.LinearLayout (the box model)
2.RelativeLayout (a rule-based model)
3.TableLayout (the grid model)
4.Frame Layout (it provides space in layout)
5. Absolute Layout (Non flexible model) – Deprecated Now
6. Grid Layout (the grid model) – Introduced in ice cream sandwich
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6. 1.Linear Layout
1.Linear Layout :- Linear Layout is a box model –widgets or
child containers are lined up in a column or row, one after the
next. To configure a Linear Layout, you have five main areas of
control besides the container's contents:
• orientation (Horizontal/Vertical)
• fill model (fill_parent/wrap_content/NNpx)
• gravity(left/right/center)
• weight
• padding
• margin
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7. • Orientation : indicates whether the Linear Layout represents a
row(HORIZONTAL) or a column (VERTICAL)
Add the android:orientation property to your LinearLayout element in your
XML layout, setting the value to be horizontal for a row or vertical for a
column.
The orientation can be modified at runtime by invoking setOrientation()
vertical
Horizontal
A
C
B CBA
1.Linear Layout
7
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9. 1.Linear Layout
1.2 Linear Layout: Fill Model
• Widgets have a "natural" size
based on their accompanying
text.
• When their combined sizes
does not exactly match the
width of the Android device's
screen, we may have the issue
of what to do with the
remaining space.
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10. 1.Linear Layout
1.2 Fill Model :
All widgets inside a LinearLayout must supply dimensional
attributes android:layout_width and android:layout_height to
help address the issue of empty space. Values used in defining
height and width are:
1.Specific a particular dimension, such as 125dip (device
independent pixels)
2. wrap_content: which means the widget should fill up its
natural space, unless that is too big, in which case Android can
use word-wrap as needed to make it fit.
3. fill_parent: which means the widget should fill up all available
space in its enclosing container, after all other widgets are
taken care of
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14. 1.Linear Layout
1.2 Linear Layout: Weight
• It is used to proportionally assign space to widgets in a view.
• You set android:layout_weight to a value (1, 2, 3, …) to indicates what proportion
of the free space should go to that widget. Example Both the TextView and the
Button widgets have been set as in the previous example. Both have the
additional property android:layout_weight="1"whereas the EditText control has
android:layout_weight="2“
• Default value is 0
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15. 1.Linear Layout
1.4 Linear Layout: Padding
• The padding specifies how much space there is between the
boundaries of the widget's "cell" and the actual widget
contents.
• If you want to increase the internal whitespace between the
edges of the and its contents, you will want to use the:
– android:padding property
– or by calling setPadding() at runtime on the widget's Java object.
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19. 2. Relative Layout :- Relative Layout places widgets based
on their relationship to other widgets in the container and
the parent container.
A
D
CB
2.Relative Layout
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21. 3.Table Layout
3. Table Layout
1.Android's Table Layout allows you to position your widgets in
a grid made of identifiable rows and columns.
2.Columns might shrink or stretch to accommodate their
contents.
3.TableLayout works in conjunction with Table Row.
4.TableLayout controls the overall behavior of the container, with
the widgets themselves positioned into one or more Table
Row containers, one per row in the grid.
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22. • Table layout contains the widgets in rows and
columns form
A
FE
B
JI
G
C
K
H
D
L
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3. Table Layout
24. 4. Frame Layout
Frame Layout :-
• Frame Layout is designed to block out an area on the
screen to display a single item.
• FrameLayout should be used to hold a single child
view, because it can be difficult to organize child
views in a way that's scalable to different screen sizes
without the children overlapping each other.
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26. 5. Absolute Layout
Absolute Layout :-
• A layout that lets you specify exact locations (x/y
coordinates) of its children.
• Absolute layouts are less flexible and harder to
maintain than other types of layouts without
absolute positioning
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28. 6. Grid Layout
• Android 4.0, or Ice Cream Sandwich (ICS), introduces
GridLayout to support rich user interface design. GridLayout is
similar to TableLayout and LinearLayout
• android.widget.GridLayout places its children in a rectangular
grid (in the form of rows and columns) similar to the
TableLayout
29. 6. Grid Layout
<?xml version="1.0" encoding="utf-8"?>
<GridLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:columnCount="4"
android:rowCount="4"
android:orientation="horizontal" >
<TextView android:text=" R 1, C 1 " /> <TextView android:text=" R 1, C 2 " />
<TextView android:text=" R 1, C 3 " /> <TextView android:text=" R 1, C 4 " />
<TextView android:text=" R 2, C 1 " /> <TextView android:text=" R 2, C 2 " />
<TextView android:text=" R 2, C 3 " /> <TextView android:text=" R 2, C 4 " />
<TextView android:text=" R 3, C 1 " /> <TextView android:text=" R 3, C 2 " />
<TextView android:text=" R 3, C 3 " /> <TextView android:text=" R 3, C 4 " />
<TextView android:text=" R 4, C 1 " /> <TextView android:text=" R 4, C 2 " />
<TextView android:text=" R 4, C 3 " /> <TextView android:text=" R 4, C 4 " />
</GridLayout>
30. 6. Grid Layout
XML Attributes
• GridLayout supports the XML Attributes defined
in android.widget.GridLayout class and in
android.widget.GridLayout.LayoutParams
android:rowCount, android:columnCount,
android:orientation
• Create an xml file with GridLayout of 4 x 4 with
xml attributes rowCount and columnCount set to
4 and orientation set as horizontal.
32. ScrollView
•When we have more data than what can be
shown on a single screen you may use the
ScrollView control.
•It provides a sliding or scrolling access to the
data. This way the user can only see part of your
layout at one time, but the rest is available via
scrolling.
• ScrollView only supports vertical scrolling. For
horizontal scrolling, use HorizontalScrollView.
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34. Each View or ViewGroup can have its own set of
attributes…but, some are very common
Attribute Description
layout_width specifies width of View or ViewGroup
layout_height specifies height
layout_marginTop extra space on top
layout_marginBottom extra space on bottom side
layout_marginLeft extra space on left side
layout_marginRight extra space on right side
layout_gravity how child views are positioned
layout_weight how much extra space in layout should be allocated to
View (only when in LinearLayout or TableView)
layout_x x-coordinate
layout_y y-coordinate
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35. Reusing Layouts - <Include> Tag
• Although Android offers a variety of widgets to provide small and re-usable
interactive elements, you might also need to re-use larger components that
require a special layout
• To efficiently reuse complete layouts, you can use the <include/> and
<merge/> tags to embed another layout inside the current layout
• Create a Reusable Layout: If you already know the layout that you want to
reuse, create a new XML file and define the layout. For example, here's a layout
that defines a title bar to be included in each activity (titlebar.xml):
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width=”match_parent”
android:layout_height="wrap_content"
android:background="@color/titlebar_bg">
<ImageView android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/gafricalogo" />
</FrameLayout>
36. Include Tag
• Use the <include>tag : Inside the layout to which you want to add the re-
usable component, add the <include/> tag For example, here's a layout
that includes the title bar from earlier example:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width=”match_parent”
android:layout_height=”match_parent”
android:background="@color/app_bg"
android:gravity="center_horizontal">
<include layout="@layout/titlebar"/>
<TextView android:layout_width=”match_parent”
android:layout_height="wrap_content"
android:text="@string/hello"
android:padding="10dp" />
…
</LinearLayout>
37. <merge> Tag
• The <merge /> tag helps eliminate redundant view groups in your view
hierarchy when including one layout within another.
• For example, if your main layout is a vertical LinearLayout in which two
consecutive views can be re-used in multiple layouts, then the re-usable
layout in which you place the two views requires its own root view
• However, using another LinearLayout as the root for the re-usable layout
would result in a vertical LinearLayout inside a vertical LinearLayout. The
nested LinearLayout serves no real purpose other than to slow down your
UI performance.
<merge xmlns:android=http://schemas.android.com/apk/res/android>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/add"/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/delete"/>
</merge>
38. • To avoid including such a redundant view group, you can instead use the
<merge> element as the root view for the re-usable layout
• Now, when you include this layout in another layout (using the <include/>
tag), the system ignores the <merge> element and places the two buttons
directly in the layout, in place of the <include/> tag.
<merge> Tag
39. Attaching Layouts to Java Code
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•You must ‘connect’ the XML elements with equivalent objects in
your Java activity. This allows you to manipulate the UI with code.
XML Layout
<xml>
………
………
</xml>
Java code
Public class
{
…………………….
setContentView(R.layout.main)
}
Gen/package/R.java
40. Attaching Layouts to Java Code
• Assume the UI in res/layout/main.xml has been created. This layout could
be called by an application using the statement
setContentView(R.layout.main);
• Individual widgets, such as myButton could be accessed by the application
using the statement findViewByID(...) as in
Button btn= (Button) findViewById(R.id.myButton);
• Where R is a class automatically generated to keep track of resources
available to the application. In particular R.id... is the collection of
widgets defined in the XML layout.
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