android - 某些手机​​上的电池已更换广播接收器崩溃应用程序

Question

只要手机接通电源，我就会激活我的应用程序。这是我的 list

<receiver android:name=".PowerConnectionReceiver">
      <intent-filter>
        <action android:name="android.intent.action.ACTION_POWER_CONNECTED"/>
        <action android:name="android.intent.action.ACTION_POWER_DISCONNECTED"/>
      </intent-filter>
    </receiver>

这是我的广播接收器

  @Override
    public void onReceive(Context context, Intent intent) {
        Log.w("TAG", "Just received connection broadcast");


        IntentFilter ifilter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
        Intent batteryStatus = context.registerReceiver(null, ifilter); //this line is causing the crash


        int status = batteryStatus.getIntExtra(BatteryManager.EXTRA_STATUS, 0);

现在，导致我 friend 手机崩溃的线路(在我的手机上一切正常)就是这条线路

Intent batteryStatus = context.registerReceiver(null, ifilter);

谁能告诉我是什么原因以及如何解决？我的手机是装有最新安卓 JB 的 galaxy nexus，他的手机是带有 Gingerbread 的 LG optimus

这是日志

    02-27 01:25:19.399: D/AndroidRuntime(5326): Shutting down VM
02-27 01:25:19.399: W/dalvikvm(5326): threadid=1: thread exiting with uncaught exception (group=0x40018560)
02-27 01:25:19.419: E/AndroidRuntime(5326): FATAL EXCEPTION: main
02-27 01:25:19.419: E/AndroidRuntime(5326): java.lang.RuntimeException: Unable to start receiver com.doublep.wakey.PowerConnectionReceiver: android.content.ReceiverCallNotAllowedException: IntentReceiver components are not allowed to register to receive intents
02-27 01:25:19.419: E/AndroidRuntime(5326):     at android.app.ActivityThread.handleReceiver(ActivityThread.java:1926)
02-27 01:25:19.419: E/AndroidRuntime(5326):     at android.app.ActivityThread.access$2400(ActivityThread.java:123)
02-27 01:25:19.419: E/AndroidRuntime(5326):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:989)
02-27 01:25:19.419: E/AndroidRuntime(5326):     at android.os.Handler.dispatchMessage(Handler.java:99)
02-27 01:25:19.419: E/AndroidRuntime(5326):     at android.os.Looper.loop(Looper.java:130)
02-27 01:25:19.419: E/AndroidRuntime(5326):     at android.app.ActivityThread.main(ActivityThread.java:3835)
02-27 01:25:19.419: E/AndroidRuntime(5326):     at java.lang.reflect.Method.invokeNative(Native Method)
02-27 01:25:19.419: E/AndroidRuntime(5326):     at java.lang.reflect.Method.invoke(Method.java:507)
02-27 01:25:19.419: E/AndroidRuntime(5326):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:864)
02-27 01:25:19.419: E/AndroidRuntime(5326):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:622)
02-27 01:25:19.419: E/AndroidRuntime(5326):     at dalvik.system.NativeStart.main(Native Method)
02-27 01:25:19.419: E/AndroidRuntime(5326): Caused by: android.content.ReceiverCallNotAllowedException: IntentReceiver components are not allowed to register to receive intents
02-27 01:25:19.419: E/AndroidRuntime(5326):     at android.app.ReceiverRestrictedContext.registerReceiver(ContextImpl.java:151)
02-27 01:25:19.419: E/AndroidRuntime(5326):     at android.app.ReceiverRestrictedContext.registerReceiver(ContextImpl.java:145)
02-27 01:25:19.419: E/AndroidRuntime(5326):     at com.doublep.wakey.PowerConnectionReceiver.onReceive(PowerConnectionReceiver.java:46)
02-27 01:25:19.419: E/AndroidRuntime(5326):     at android.app.ActivityThread.handleReceiver(ActivityThread.java:1915)
02-27 01:25:19.419: E/AndroidRuntime(5326):     ... 10 more

Answer 1

你得到一个 ReceiverCallNotAllowedException .

This exception is thrown from registerReceiver(BroadcastReceiver,
IntentFilter) and bindService(Intent, ServiceConnection, int) when these methods are being used from an BroadcastReceiver component. In this case, the component will no longer be active upon returning from receiving the Intent, so it is not valid to use asynchronous APIs.

这意味着，您不能在 BroadcastReceiver 中注册 BroadcastReceiver。

编辑:BroadcastReceiver 的工作示例，它监听 ACTION_BATTERY_CHANGED Intent:

    private int mBatteryLevel;
    private IntentFilter mBatteryLevelFilter;

    BroadcastReceiver mBatteryReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            mBatteryLevel = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
            Toast.makeText(context, "Current Battery Level: " + mBatteryLevel, Toast.LENGTH_LONG).show();
        }
    };

    private void registerMyReceiver() {
        mBatteryLevelFilter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
        registerReceiver(mBatteryReceiver, mBatteryLevelFilter);
    }

现在您只需调用 registerMyReceiver()。