我试图根据手册创建一些简单BroadcastReceiver
,但我不能使它工作。 我打电话的过程setAlarm在MainActivity onCreate
功能,看起来像这样:BroadcastReceiver不工作
private void setAlarm() {
Intent intent = new Intent(MainActivity.this, AlarmReceiver.class);
AlarmManager manager = (AlarmManager) getSystemService(ALARM_SERVICE);
PendingIntent pendingIntent = PendingIntent.getService(this, 0, intent, 0);
manager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis()+1000, pendingIntent);
}
应该激活AlarmReceiver
应该做一些动作,但不会做任何事情。它看起来像这样:
public class AlarmReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
Toast.makeText(context, "I'm running", Toast.LENGTH_LONG).show();
notifikace(context);
}
public void notifikace(Context context) {
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context);
mBuilder.setSmallIcon(R.drawable.notifikace);
mBuilder.setContentTitle("Notification Alert, Click Me!");
mBuilder.setContentText("aaa");
NotificationManager mNotificationManager = (NotificationManager) context.getSystemService(context.NOTIFICATION_SERVICE);
mNotificationManager.notify(2, mBuilder.build());
}
}
我怀疑我在AndroidManifest中丢失了一些东西,但我不知道是什么。 AndroidManifest看起来是这样的:
<?xml version="1.0" encoding="utf-8"?>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity
android:name=".MainActivity"
android:label="@string/app_name"
android:theme="@style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".Nastaveni"
android:label="@string/title_activity_nastaveni"
android:theme="@style/AppTheme.NoActionBar" />
<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
<activity
android:name=".Tyden"
android:label="@string/title_activity_tyden"
android:theme="@style/AppTheme.NoActionBar"></activity>
<receiver android:name=".AlarmReceiver" >
</receiver>
</application>
最终appliacation应该能够在每天的特定时间发送通知,即使应用程序没有在时刻运行。 (我必须再更换setRepeating功能
manager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis()+1000, pendingIntent);
线,但到目前为止,出于测试目的,我需要先让它运行。) 但到目前为止AlarmReceiver类并没有做任何事情。我得到了一些错误,当我尝试运行它(但应用程序不会崩溃):
04-14 11:52:54.592 1300-1354/? I/ActivityManager: START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.example.xxx.myapplication3/com.example.xxx.myapplication.MainActivity (has extras)} from uid 10014 on display 0
04-14 11:52:54.673 1300-1635/? I/ActivityManager: START u0 {act=android.content.pm.action.REQUEST_PERMISSIONS pkg=com.android.packageinstaller cmp=com.android.packageinstaller/.permission.ui.GrantPermissionsActivity (has extras)} from uid 10057 on display 0
我不知道错误日志是否与此有关什么的其他项目。我究竟做错了什么?预先感谢任何答案。
格式代码/ XML请 –
难道我的回答解决问题了吗?如果是这样,请标记为正确:) – Goofyahead