Android Application Development Cookbook: 93 Recipes for Building Winning Apps

Android Application Development Cookbook: 93 Recipes for Building Winning Apps

Wei-Meng Lee

Language: English

Pages: 408

ISBN: 1118177673

Format: PDF / Kindle (mobi) / ePub


A must-have collection of ready-to-use Android recipes!

The popularity of Google Android devices is seemingly unstoppable and the Android 4 release offers, for the first time, a single OS solution for building both phone and tablet applications. With that exciting information in mind, veteran author Wei-Meng Lee presents you with 100 unique recipes that you can apply today in order to discover solutions to some of the most commonly encountered problems that exist in Android programming.

Covering the scope of multiple Android releases up through Android 4, this reference features a task description, followed by the solution(s) available, and a standalone project file that illustrates the use of the recipe. Formatting each recipe to be standalone, Wei-Meng Lee allows you to jump into the relevant recipe to find a solution to specific challenges.

  • Identifies and describes a programming task, provides a step-by-step solution, and presents a full-code solution ready for download
  • Covers multiple Android releases
  • Addresses such topics as user interfaces, telephony and messaging, networking, Google maps, location-based services, persisting data, leveraging hardware features, and more

Android Application Development Cookbook is your solution to discovering...solutions!

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Android Application Development Cookbook: 93 Recipes for Building Winning Apps

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onClick(View view) { Intent i = new Intent("MY_SPECIFIC_ACTION"); i.putExtra("key", "some value from intent"); sendBroadcast(i); } If you want to pass data to the receiver, you can use the putExra() method. To unregister the broadcast receiver, use the unregisterReceiver() method: unregisterReceiver(myReceiver); 16  ❘  CHAPTER 1  Android Fundamentals Figure 1-4 shows the receiver receiving the broadcast. Figure 1-4 The broadcast receiver will work even if the broadcast was sent by another

app--Intent i = new Intent(context,MainActivity.class); i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); context.startActivity(i); } } When the device boots up, it will fire this broadcast receiver and call the onReceiver() method. To display your activity when the device boots up, you will use an Intent object. Remember to add the FLAG_ACTIVITY_NEW_TASK flag to the Intent object. To register the broadcast receiver, you need to add the element to the AndroidManifest.xml file. You also need

Positioning Android Versions Level 1 and above Permissions None Source Code to Download from Wrox.com UsingTableLayout.zip The TableLayout groups views into rows and columns. You use the element to designate a row in the table. Each row can contain one or more views. Each view you place within a row forms a cell. The width of each column is determined by the largest width of each cell in that column. This recipe shows how to use the TableLayout. Solution Assume you have the

net.learn2develop.customlistview; import android.app.ListActivity; import android.os.Bundle; import android.widget.ArrayAdapter; public class MainActivity extends ListActivity String[] presidents = { "Dwight D. Eisenhower", "John F. Kennedy", "Lyndon B. Johnson", "Richard Nixon", "Gerald Ford", "Jimmy Carter", "Ronald Reagan", "George H. W. Bush", "Bill Clinton", "George W. Bush", "Barack Obama" }; { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);

ArrayAdapter base class. You want it to bind the array to the new layout that you have just created. Observe that the constructor of the CustomArrayAdapter class takes three arguments (see bold code): the context of the application, an array containing the presidents’ names, and an integer array containing the IDs of the picture of each president. To display the ListView using the new layout, add the following code to the MainActivity .java file: package net.learn2develop.customlistview; import

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