This document provides an overview of topics related to Android application development including the Android environment setup, user interface development, interactive application development, and a brief history of Android. It discusses Android versions from 1.0 to the current version, the open handset alliance, and common UI elements like buttons, text fields, checkboxes and their usage. It also summarizes key Android concepts like activities, intents, views, view groups, different layouts, attributes and adding interactivity using click listeners.
Android - From Zero to Hero @ DEVit 2017Ivo Neskovic
The workshop deals with the design and implementation of applications for mobile devices using the Android operating system. Participants work at all stages of the development life-cycle from inception to deployment, whilst considering usability and device capabilities for a mobile application capable of meeting a functional specification. Participants are introduced to the programming environment for application development and have a hands-on approach to programming using the appropriate programming languages.
Android - From Zero to Hero @ DEVit 2017Ivo Neskovic
The workshop deals with the design and implementation of applications for mobile devices using the Android operating system. Participants work at all stages of the development life-cycle from inception to deployment, whilst considering usability and device capabilities for a mobile application capable of meeting a functional specification. Participants are introduced to the programming environment for application development and have a hands-on approach to programming using the appropriate programming languages.
Those who want to be familiar with Android, can easily go through this document. It will help them to learn basics. It is also useful for those who are preparing for cracking android interviews as this document is short and precise.
Those who want to be familiar with Android, can easily go through this document. It will help them to learn basics. It is also useful for those who are preparing for cracking android interviews as this document is short and precise.
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This is a basic crash course for android development covers:
Android Studio,Hello World Application,Application Components,Application Resources,User Interface,Good UI,Play Store
Android development orientation for starters v2Joemarie Amparo
This slides contains overview of android development for beginners.
I created this for the students of CCA Cebu
Special thanks to Larry Walters's presentation from which I also refer.
Android User Interface Tutorial: DatePicker, TimePicker & SpinnerAhsanul Karim
These slides are for self-learners and trainees of my BASIS and DIIT Android course.
I have used information, content and images from various sources. As these materials are for non-commercial use, I think they won’t infringe any copyright issue.
A complete Lab Manual with Aim, Procedure, Source Code, ... All the Experiments of Mobile Application Development Lab are developed using Android Studio.
The Content helps those who wish to program mobile applications using android platform. The content has been used to conduct mobile application boot camps using android platform on different regions in Tanzania
Materi yang ada pada slide ini berisi :
Android version
Platform architecture
App Component
Kotlin
Struktur Project
Activity Lifecycle
Melempar Nilai
Layouting LinearLayout
Layouting RelativeLayout
Look And Feel
Custom Buttom
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Email : rizkiadamunikom@gmail.com
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We describe the deployment and use of Globus Compute for remote computation. This content is aimed at researchers who wish to compute on remote resources using a unified programming interface, as well as system administrators who will deploy and operate Globus Compute services on their research computing infrastructure.
In software engineering, the right architecture is essential for robust, scalable platforms. Wix has undergone a pivotal shift from event sourcing to a CRUD-based model for its microservices. This talk will chart the course of this pivotal journey.
Event sourcing, which records state changes as immutable events, provided robust auditing and "time travel" debugging for Wix Stores' microservices. Despite its benefits, the complexity it introduced in state management slowed development. Wix responded by adopting a simpler, unified CRUD model. This talk will explore the challenges of event sourcing and the advantages of Wix's new "CRUD on steroids" approach, which streamlines API integration and domain event management while preserving data integrity and system resilience.
Participants will gain valuable insights into Wix's strategies for ensuring atomicity in database updates and event production, as well as caching, materialization, and performance optimization techniques within a distributed system.
Join us to discover how Wix has mastered the art of balancing simplicity and extensibility, and learn how the re-adoption of the modest CRUD has turbocharged their development velocity, resilience, and scalability in a high-growth environment.
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Science gateways allow science and engineering communities to access shared data, software, computing services, and instruments. Science gateways have gained a lot of traction in the last twenty years, as evidenced by projects such as the Science Gateways Community Institute (SGCI) and the Center of Excellence on Science Gateways (SGX3) in the US, The Australian Research Data Commons (ARDC) and its platforms in Australia, and the projects around Virtual Research Environments in Europe. A few mature frameworks have evolved with their different strengths and foci and have been taken up by a larger community such as the Globus Data Portal, Hubzero, Tapis, and Galaxy. However, even when gateways are built on successful frameworks, they continue to face the challenges of ongoing maintenance costs and how to meet the ever-expanding needs of the community they serve with enhanced features. It is not uncommon that gateways with compelling use cases are nonetheless unable to get past the prototype phase and become a full production service, or if they do, they don't survive more than a couple of years. While there is no guaranteed pathway to success, it seems likely that for any gateway there is a need for a strong community and/or solid funding streams to create and sustain its success. With over twenty years of examples to draw from, this presentation goes into detail for ten factors common to successful and enduring gateways that effectively serve as best practices for any new or developing gateway.
Prosigns: Transforming Business with Tailored Technology SolutionsProsigns
Unlocking Business Potential: Tailored Technology Solutions by Prosigns
Discover how Prosigns, a leading technology solutions provider, partners with businesses to drive innovation and success. Our presentation showcases our comprehensive range of services, including custom software development, web and mobile app development, AI & ML solutions, blockchain integration, DevOps services, and Microsoft Dynamics 365 support.
Custom Software Development: Prosigns specializes in creating bespoke software solutions that cater to your unique business needs. Our team of experts works closely with you to understand your requirements and deliver tailor-made software that enhances efficiency and drives growth.
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Learn how our collaborative approach and dedication to excellence help businesses achieve their goals and stay ahead in today's digital landscape. From concept to deployment, Prosigns is your trusted partner for transforming ideas into reality and unlocking the full potential of your business.
Join us on a journey of innovation and growth. Let's partner for success with Prosigns.
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NetSage is an open privacy-aware network measurement, analysis, and visualization service designed to help end-users visualize and reason about large data transfers. NetSage traditionally has used a combination of passive measurements, including SNMP and flow data, as well as active measurements, mainly perfSONAR, to provide longitudinal network performance data visualization. It has been deployed by dozens of networks world wide, and is supported domestically by the Engagement and Performance Operations Center (EPOC), NSF #2328479. We have recently expanded the NetSage data sources to include logs for Globus data transfers, following the same privacy-preserving approach as for Flow data. Using the logs for the Texas Advanced Computing Center (TACC) as an example, this talk will walk through several different example use cases that NetSage can answer, including: Who is using Globus to share data with my institution, and what kind of performance are they able to achieve? How many transfers has Globus supported for us? Which sites are we sharing the most data with, and how is that changing over time? How is my site using Globus to move data internally, and what kind of performance do we see for those transfers? What percentage of data transfers at my institution used Globus, and how did the overall data transfer performance compare to the Globus users?
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Cross-facility research orchestration comes with ever-changing constraints regarding the availability and suitability of various compute and data resources. In short, a flexible data and processing fabric is needed to enable the dynamic redirection of data and compute tasks throughout the lifecycle of an experiment. In this talk, we illustrate how we easily leveraged Globus services to instrument the ACE research testbed at the Oak Ridge Leadership Computing Facility with flexible data and task orchestration capabilities.
SOCRadar Research Team: Latest Activities of IntelBrokerSOCRadar
The European Union Agency for Law Enforcement Cooperation (Europol) has suffered an alleged data breach after a notorious threat actor claimed to have exfiltrated data from its systems. Infamous data leaker IntelBroker posted on the even more infamous BreachForums hacking forum, saying that Europol suffered a data breach this month.
The alleged breach affected Europol agencies CCSE, EC3, Europol Platform for Experts, Law Enforcement Forum, and SIRIUS. Infiltration of these entities can disrupt ongoing investigations and compromise sensitive intelligence shared among international law enforcement agencies.
However, this is neither the first nor the last activity of IntekBroker. We have compiled for you what happened in the last few days. To track such hacker activities on dark web sources like hacker forums, private Telegram channels, and other hidden platforms where cyber threats often originate, you can check SOCRadar’s Dark Web News.
Stay Informed on Threat Actors’ Activity on the Dark Web with SOCRadar!
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Check out the webinar slides to learn more about how XfilesPro transforms Salesforce document management by leveraging its world-class applications. For more details, please connect with sales@xfilespro.com
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Why React Native as a Strategic Advantage for Startup Innovation.pdfayushiqss
Do you know that React Native is being increasingly adopted by startups as well as big companies in the mobile app development industry? Big names like Facebook, Instagram, and Pinterest have already integrated this robust open-source framework.
In fact, according to a report by Statista, the number of React Native developers has been steadily increasing over the years, reaching an estimated 1.9 million by the end of 2024. This means that the demand for this framework in the job market has been growing making it a valuable skill.
But what makes React Native so popular for mobile application development? It offers excellent cross-platform capabilities among other benefits. This way, with React Native, developers can write code once and run it on both iOS and Android devices thus saving time and resources leading to shorter development cycles hence faster time-to-market for your app.
Let’s take the example of a startup, which wanted to release their app on both iOS and Android at once. Through the use of React Native they managed to create an app and bring it into the market within a very short period. This helped them gain an advantage over their competitors because they had access to a large user base who were able to generate revenue quickly for them.
Software Engineering, Software Consulting, Tech Lead.
Spring Boot, Spring Cloud, Spring Core, Spring JDBC, Spring Security,
Spring Transaction, Spring MVC,
Log4j, REST/SOAP WEB-SERVICES.
1. TOPICS TO BE COVERED
• Introduction to android.
• Setup android environment.
• User interface development.
• Interactive application development.
2. OVERVIEW
• What is android?
• History of android.
• What is Open handset alliance?
• Different Versions of android.
3. BRIEF HISTORY
• Android is a Linux-based open source software stack that comes along with:
1. operating system
2. middleware
3. native mobile applications
• It was designed primarily for touchscreen mobile devices such as smartphones, tablets.
• Initially developed by Android Inc.,(founded in 2003 and is based in Palo Alto,
California) which operated as subsidiary of Google and later purchased by Google in
2005.
• Android was publically announced in 2007 and first phone was sold on October 2008.
5. NAMES & SPECIFICATION
• Initial two versions were called as beta versions specified as Android 1.0 & 1.1.
• Later on names of subsequent versions were based on some dessert & are in alphabetic orders
e.g.
1. 1.5 Cupcake
2. 1.6 Donut
3. 2.0/2.1 Éclair
4. 2.2 Froyo
5. 2.3 Gingerbread
6. 3.0/3.1 Honeycomb
7. 4.0 Ice-cream Sandwich
8. 4.1 Jelly Bean
9. 4.4 Kitkat
8. OPEN SOURCE
Industry
• Software stack open-
sourced under Apache
2.0 license
• Source available after
first handsets ship
• Anyone will be able to
build a system image
Users
• Users have control of their
experience
• They control what gets
installed
• They choose the defaults
Developer
• Don not need
permission to ship an
application
• No hidden or privileged
framework APIs
• Can integrate, extend
and replace existing
components
INDUSTRY
USER
DEVELOPER
10. USER INTERFACE
• User interface layout
• View
• View group
• UI attributes and ID
• Types of layouts
• Basic Input controls
I. Buttons
II. Textfields
III. Radio button
IV. Checkbox
V. Toggle button
VI. Spinners
VII. Pickers
12. View & view group
What is view?
• All user interface elements in the android app are build using view
and view group objects.
e.g. view contains: button, textfields, etc.
14. For Example Vertical layout in which Button and Text View look
like this
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView android:id="@+id/text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="I am a TextView" />
<Button android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="I am a Button" />
</LinearLayout>
15. ATTRIBUTES
• Id: every view element has a unique id.
Example
android:id=“@+id/unique name”
Indicates
xml should
be parsed
Indicates new
resource has to added
to R.java file
Resource
generated
automatically
16. LAYOUT AND ITS TYPES
• Linear
• Relative
• Table layout
• Grid layout
• Grid view
• List view
17. LINEAR LAYOUT
• LinearLayout is a view group that aligns all children in a single
direction, vertically or horizontally. You can specify the layout
direction with the android :orientation attribute.
Example:
22. LIST VIEW
• List view a view group that displays a list of scrollable items.
• The list using an adapter that pulls content from a source such as an
array or database query and converts each item result into a view
that’s placed into the list.
23. GRID VIEW
• Grid view is a view group that displays items in a two dimensional,
scrollable grid. The grid items are automatically inserted to the layout
using list adapter.
24. Control Type Description Related Classes
Button A push-button that can be pressed, or clicked, by
the user to perform an action.
Button
Text field An editable text field. You can use
theAutoCompleteTextView widget to create a text
entry widget that provides auto-complete
suggestions
EditText,AutoCompleteTextView
Checkbox An on/off switch that can be toggled by the user.
You should use checkboxes when presenting users
with a group of selectable options that are not
mutually exclusive.
CheckBox
Radio button Similar to checkboxes, except that only one option
can be selected in the group.
RadioGroup
RadioButton
Toggle button An on/off button with a light indicator. ToggleButton
Spinner A drop-down list that allows users to select one
value from a set.
Spinner
Pickers A dialog for users to select a single value for a set
by using up/down buttons or via a swipe gesture.
Use aDatePickercode> widget to enter the values
for the date (month, day, year) or
a TimePicker widget to enter the values for a time
(hour, minute, AM/PM), which will be formatted
DatePicker,TimePicker
33. public void sendMessage(View view)
{
// Do something in response to button click
}
The method you declare in the android:onClick attribute must have a
signature exactly as shown above. Specifically, the method must:
• Be public
• Return void
• Define a View as its only parameter
34. USING Onclicklistener
Button button = (Button) findViewById(R.id.button_send);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// Do something in response to button click
}
});
35. CHECKBOX
public void
onCheckboxClicked(View view) {
// Is the view now checked?
boolean checked = ((CheckBox)
view).isChecked();
// Check which checkbox
was clicked
switch(view.getId()) {
case R.id.checkbox_meat:
if (checked)
// Put some meat on
the sandwich
else
// Remove the meat
break;
case R.id.checkbox_cheese:
if (checked)
// Cheese me
else
// I'm lactose intolerant
break;
// TODO: Veggie sandwich
}}
37. ONCLICK EVENT
public void onRadioButtonClicked(View view) {
// Is the button now checked?
boolean checked = ((RadioButton) view).isChecked();
// Check which radio button was clicked
switch(view.getId()) {
case R.id.radio_pirates:
if (checked)
// Pirates are the best
break;
case R.id.radio_ninjas:
if (checked)
// Ninjas rule
break;
}}
38. Important Folders
• Whenever we create any Application, there are a number of folders which are created by default.
• These folders contain subfolders and important files associated to them which play a key role in proper UI designing as
well as coding.
1. src (source code of activities)
2. Android 4.4 (contains all library files)
3. gen ( auto generated files (R.java))
4. Res (resource)
1. it contains all Drawable components
2. layouts ( it contains the xml file)
3. menu
4. values – string.xml
dimens.xml
style.xml
5. Android Manifest File
1. Sdk (min to max)
2. Application (contain main activity details)
a. Activity
b. Intent filter
c. Providers
d. Services
e. Receivers etc.
39.
40. Image View
1. If we want to add an Image in our activity, we need to copy the
image to the “Drawable folder” in “res folder”.
2. Drawable folder contains subfolders :
1. hdpi ( ̴ 240 dpi) is High density pixels
2. ldpi ( ̴ 120 dpi) is Low density pixels
3. mdpi ( ̴ 160 dpi) is medium density pixels
4. xhdpi ( ̴ 320 dpi) is extra high density pixels
3. Add <imageView> and define different parameters in it.
41. Toast Message (notification)
• Toast provides simple feedback about an operation in a small popup.
• It only fills the amount of space required for the message and the current activity
remains visible and interactive.
• Toast automatically disappears after timeout.
Syntax : Toast toast=Toast.makeText (context, text, duration);
toast.show();
Note:- Toast is instantiated by using makeText() method.