粘滯廣播--076集

轉載請註明出處：http://blog.csdn.net/u011569040/article/details/45966779

一打開MainActivity就發送一個粘滯廣播，它在空中等待接收；點擊按鈕，跳轉到第二個Activity，在這個Activity裏面註冊了一個廣播接收者，收到了粘滯廣播，並打印出來。

需要註冊權限：

<uses-permission android:name="android.permission.BROADCAST_STICKY"/>

public class MainActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		Intent intent=new Intent("com.sxt.day07_07.my_receiver");
		sendStickyBroadcast(intent);
		setListener();
	}

	private void setListener() {
		findViewById(R.id.btnStartSecondActivity).setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View v) {
				Intent intent2=new Intent(MainActivity.this, SecondActivity.class);
				startActivity(intent2);
			}
		});
	}

}

public class SecondActivity extends Activity {
	MyReceiver mReceiver;
	Intent mIntent;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_second);
		registerReceiver();
	}
	private void registerReceiver() {
		mReceiver=new MyReceiver();
		IntentFilter filter=new IntentFilter("com.sxt.day07_07.my_receiver");
		registerReceiver(mReceiver, filter);
	}
	class MyReceiver extends BroadcastReceiver{
		@Override
		public void onReceive(Context context, Intent intent) {
			Log.i("main","MyReceiver.onReceive()");
			mIntent=intent;
		}
	}
	@Override
	protected void onDestroy() {
		super.onDestroy();
		removeStickyBroadcast(mIntent);
		unregisterReceiver(mReceiver);
	}
}

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.sxt.day07_07"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="18" />
	<uses-permission android:name="android.permission.BROADCAST_STICKY"/>
    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.sxt.day07_07.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name="com.sxt.day07_07.SecondActivity"
            android:label="@string/title_activity_second" >
        </activity>
    </application>

</manifest>