我在向我的应用添加通知时遇到了一些问题。例如,我希望每天早上10点收到通知。这是我的代码:
MainActivity.java
public class MainActivity extends AppCompatActivity {
private PendingIntent alarmIntent;
private AlarmManager alarmMgr;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setAlarm();
}
private void setAlarm() {
alarmMgr = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(this, AlarmReceiver.class);
alarmIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR_OF_DAY, 10);
calendar.set(Calendar.MINUTE, 00);
alarmMgr.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
1000 * 3, alarmIntent);
}
AlarmReceiver.java
public class AlarmReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(context)
.setSmallIcon(R.drawable.ic_stat_name)
.setContentTitle("My notification")
.setContentText("Hello World!");
Intent resultIntent = new Intent(context, MainActivity.class);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
stackBuilder.addParentStack(MainActivity.class);
stackBuilder.addNextIntent(resultIntent);
PendingIntent resultPendingIntent =
stackBuilder.getPendingIntent(
0,
PendingIntent.FLAG_UPDATE_CURRENT
);
mBuilder.setContentIntent(resultPendingIntent);
NotificationManager mNotificationManager =
(NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationManager.notify(1, mBuilder.build());
}
}
的AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.turnu_a.todolist">
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="com.android.alarm.permission.SET_ALARM" />
<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=".taskView.newTaskActivity" />
<activity android:name=".taskView.showTaskDetailsActivity" />
<activity android:name=".taskView.updateTaskActivity" />
<activity android:name=".settings.settingsActivity"></activity>
<receiver android:name=".Alarm.AlarmReceiver"></receiver>
</application>
问题是,即使我在一两分钟内更改了触发器的发生时间(为了测试我的代码),但绝对没有任何反应。我试图在&#34; setAlarm()&#34;中创建通知。方法和它工作,这意味着问题不是来自通知的创建,但alarmManager没有被触发。 我很感激任何帮助。感谢。
答案 0 :(得分:1)
所以...我删除了这一行:
calendar.setTimeInMillis(System.currentTimeMillis());
来自“setAlarm()”方法,现在可以正常工作。
我很高兴它有效,但有点惊讶问题来自这里(虽然事后看来,我不认为这条线是非常有用的。)
无论如何,问题已经解决了,感谢所有试图提供帮助的人。