Android，使用 BOOT_COMPLETED 意图拒绝权限

Question

我有一个 BootReceiver，并且正在使用 android.intent.action.BOOT_COMPLETED 来重新配置用户在手机关闭之前在我的应用程序中发出的任何警报。

我使用 AlarmManager 再次设置闹钟。警报存储在 SQLite 数据库中。

public class BootReceiver extends BroadcastReceiver {

private Context mContext;   

@Override
public void onReceive(Context c, Intent intent) {
    mContext = c;

try {
        cursor.moveToFirst();
        do {
            Intent i = new Intent(mContext, AlarmReceiver.class);
            i.putExtra("alarm_message", cursor.getInt(1));
            PendingIntent pendingIntent  = PendingIntent.getBroadcast(mContext, (int)System.currentTimeMillis(), intent, PendingIntent.FLAG_ONE_SHOT);
            AlarmManager am = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE);
            am.set(AlarmManager.RTC_WAKEUP, cursor.getLong(4), pendingIntent);
            Log.e("DB", "Future alarms was set after reboot");
        } while (cursor.moveToNext());
    } catch (Exception e1) {
        Log.e("DB", "DB is empty");
    }
    cursor.close();

但是，当警报即将发生时，logcat 会给我这样的信息：

Permission Denial: not allowed to send broadcast android.intent.action.BOOT_COMPLETED from pid=-1, uid=10067
Unable to send startActivity intent
W/ActivityManager(1584): java.lang.SecurityException: Permission Denial: not allowed to send broadcast android.intent.action.BOOT_COMPLETED from pid=-1, uid=10067
02-19 23:42:26.989: W/ActivityManager(1584):    at com.android.server.am.ActivityManagerService.broadcastIntentLocked(ActivityManagerService.java:10310)
02-19 23:42:26.989: W/ActivityManager(1584):    at com.android.server.am.ActivityManagerService.broadcastIntentInPackage(ActivityManagerService.java:10587)
02-19 23:42:26.989: W/ActivityManager(1584):    at com.android.server.am.PendingIntentRecord.sendInner(PendingIntentRecord.java:228)
02-19 23:42:26.989: W/ActivityManager(1584):    at com.android.server.am.PendingIntentRecord.send(PendingIntentRecord.java:177)
02-19 23:42:26.989: W/ActivityManager(1584):    at android.app.PendingIntent.send(PendingIntent.java:400)
02-19 23:42:26.989: W/ActivityManager(1584):    at com.android.server.AlarmManagerService$AlarmThread.run(AlarmManagerService.java:692)

到目前为止，我的 AlarmReceiver.class 中唯一的东西是：

public class AlarmReceiver extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {
    Log.v("AlarmReceiver", "Alarm received");

我拥有所有适当的权限

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

并设置了接收器：

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

我已经看到了在此过程中成功的示例，但无法摆脱许可拒绝。我缺少什么？

Answer 1

@Override
public void onReceive(Context c, Intent intent) {

    ...

    Intent i = new Intent(mContext, AlarmReceiver.class);
    i.putExtra("alarm_message", cursor.getInt(1));
    PendingIntent pendingIntent  = PendingIntent.getBroadcast(mContext, (int)System.currentTimeMillis(), intent, PendingIntent.FLAG_ONE_SHOT);

    ...
}

在您的 BootReceiver 中，您正在创建一个 PendingIntent 并向其传递由 onReceive(...) 接收的 Intent > - 查看上面 getBroadcast(...) 的第三个参数。

我猜您的意思是传递 i 作为该参数而不是 intent。