广播—安装与卸载应用

最新推荐文章于 2021-05-25 17:33:32 发布

原创最新推荐文章于 2021-05-25 17:33:32 发布 · 616 阅读

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动态注册广播
  
public class MainActivity extends Activity {

    private BootReceiver receiver;
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    @Override
    protected void onStart() {
        super.onStart();
//        注册安装广播
        receiver = new BootReceiver();
        IntentFilter intentPrintFilter = new IntentFilter();
        intentPrintFilter.addAction("android.intent.action.PACKAGE_REMOVED");
        intentPrintFilter.addAction("android.intent.action.PACKAGE_ADDED");
        intentPrintFilter.addDataScheme("package");
        registerReceiver(receiver, intentPrintFilter);
    }

    public class BootReceiver extends BroadcastReceiver {

        public BootReceiver() {
//            super();
        }

        @Override
        public void onReceive(Context context, Intent intent) {
            if (intent.getAction().equals("android.intent.action.PACKAGE_ADDED")) {
                String  packageName = intent.getDataString();
                Log.d("baobaotest", "安装了:" + packageName + "包名的程序");

            }
            //接收卸载广播
            if (intent.getAction().equals("android.intent.action.PACKAGE_REMOVED")) {
                String packageName = intent.getDataString();
                Log.d("baobaotest", "卸载了:" + packageName + "包名的程序");
            }
        }
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        unregisterReceiver(receiver);
    }
}

静态注册广播，如果是内部类，必须写为static。
<receiver android:name=".MainActivity$BootReceiver">
    <intent-filter>
        <action android:name="android.intent.action.BOOT_COMPLETED"/>
        <category android:name="android.intent.category.LAUNCHER" />
    </intent-filter>
    <intent-filter>
        <action android:name="android.intent.action.PACKAGE_ADDED" />
        <action android:name="android.intent.action.PACKAGE_REMOVED" />
	<data android:scheme="package" />
	     <!-- 注意！！ 这句必须要加，否则接收不到BroadCast -->
    </intent-filter>
</receiver>