Android

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Android

  1. 1. Android
  2. 2. What u need• Java• Eclipse (http://www.eclipse.org/downloads/)• Android SDK (http://developer.android.com/sdk/index.html )
  3. 3. Installing ADT plugin• You need ADT plugin to develop in eclipse• Click on add and use https://dl- ssl.google.com/android/eclipse/ as the URL and install the plugin
  4. 4. Android SDK• Unzip the Android SDK and give the path to folder in Windows->Preferences->Android- >SDK Location• Start Android SDK Manager
  5. 5. Install Android version u want• Install the android version you need in Android SDK manager.
  6. 6. Basic concepts• Activity – Any UI in android is an activity• Services – When you need a background job and not an UI• Receivers – gets notified when an event occurs(eg: notify me when there is a SMS)• Content Provider – when you need content from device like contacts, media• Intents – you specify what you want (more like raising a event with details)
  7. 7. Hellow world• Start new project File->New->Android Project.• Give a name, choose on what version you want your project to run.• Application name – name u want• Package – give something sensible• Give a activity name and choose a min version needed.
  8. 8. Whats created?• U get a sample project by default..• If everything was good, you can launch your first app without any more steps..• You may be asked to create a new virtual device. From Windows-> AVD Manager• Click Run an emulator would start in a few mins
  9. 9. Understanding whats under the hood
  10. 10. xmls• Open main.xml and start modifying…Add your own UI• Open AndroidManifest.xml and see whats ur application meta data looks like..
  11. 11. Simple eclipse short cuts you may need• Ctrl+1 – show suggestions..• Ctrl+3 – show master control.. Type in what you want• Ctrl+Alt+ up/down – duplicate line up/down• Ctrl+o – functions in given java file..• Ctrl+Shift+R – type the name of resource you need (eg:main.xml)• Ctrl+f11 – Run the program..

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