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  • Broadcast广播代码例子

    一.最基础自定义广播接收

    1、MainActivity 代码

    public class MainActivity extends Activity implements
    OnClickListener {
    private Button button1;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    button1=(Button) this.findViewById(R.id.button1);
    button1.setOnClickListener(this);
    }
    public void onClick(View v) {
    // TODO Auto-generated method stub
    Intent intent=new Intent();
    intent.setAction("aaa.action.MyBroadcast"); 
    sendOrderedBroadcast(intent, null);  //定义有序广播
    }

    }

    2、receiver代码

    public class MyBroadcastReceiver2 extends BroadcastReceiver {

    static final String ACTION = "aaa.action.MyBroadcast";

    @Override
    public void onReceive(Context context, Intent intent) {
    // TODO Auto-generated method stub

    if (intent.getAction().equals(ACTION)) {
    Toast.makeText(context, "登录失败...", Toast.LENGTH_LONG).show();
    Log.i("MyBroadcast", "1111MyBroadcast");
    }

    }

    }

    public class MyBroadcastReceiver3 extends BroadcastReceiver {
    static final String ACTION = "aaa.action.MyBroadcast";

    @Override
    public void onReceive(Context context, Intent intent) {
    // TODO Auto-generated method stub

    if (intent.getAction().equals(ACTION)) {
    //Toast.makeText(context, "登录失败...", Toast.LENGTH_LONG).show();
    Log.i("MyBroadcast", "22222MyBroadcast");
    }

    }

    }

    3、注册

    <receiver android:name=".MyBroadcastReceiver2" >
    <intent-filter android:priority="500" >
    <action android:name="aaa.action.MyBroadcast" />
    </intent-filter>
    </receiver>
    <receiver android:name=".MyBroadcastReceiver3" >
    <intent-filter android:priority="1000" >
    <action android:name="aaa.action.MyBroadcast" />
    </intent-filter>
    </receiver>

    二.定义开机启动广播

    1、


    public class MyBroadcastReceiver extends BroadcastReceiver {

    static final String ACTION = "android.intent.action.BOOT_COMPLETED";
    @Override
    public void onReceive(Context context, Intent intent) {
    // TODO Auto-generated method stub
    if (intent.getAction().equals(ACTION)){
    Intent intent2=new Intent(context, MainActivity.class);
    context.startActivity(intent2);
    }
    }

    }

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

    <receiver
    android:name=".MyBroadcastReceiver">
    <intent-filter >
    <action android:name="android.intent.action.BOOT_COMPLETED"/>
    </intent-filter>
    </receiver>

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  • 原文地址:https://www.cnblogs.com/jasmine1314/p/4701537.html
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