Question

我想为某个日期和时间设置一次性闹钟。我也通过使用报警管理器来设置它。但我的问题是当设备关闭并打开然后警报没有唤醒。

我的代码::

public void setAlarm(String initialTime, String diffTime) throws ParseException {


        Calendar cal = Calendar.getInstance(TimeZone.getDefault(), Locale.getDefault());
        cal.set(Calendar.DATE,date);
        cal.set(Calendar.MONTH,month-1);
        cal.set(Calendar.YEAR,year);
        cal.set(Calendar.HOUR_OF_DAY, hour);
        cal.set(Calendar.MINUTE, minute);
        cal.set(Calendar.SECOND, second);
        AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
        Intent i = new Intent(ChatScreen.this, AlarmNotificationReceiver.class);
        i.putExtra("CoId", coId);
        i.putExtra("DeptId", deptNo);
        i.putExtra("CoName", companyName);
        i.putExtra("DpLogo", dpLogo);
        i.putExtra("DeptName",deptName);
        i.setAction("isFromAlram");
        PendingIntent pi = PendingIntent.getBroadcast(ChatScreen.this,0, i, PendingIntent.FLAG_UPDATE_CURRENT);
        alarmManager.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(),pi);
    }

My AlarmReceiverclass :::

public class AlarmNotificationReceiver extends BroadcastReceiver{


    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();
        Log.e("AlarmReceiver",action);

        if (action.equals(Intent.ACTION_BOOT_COMPLETED)) {
            Toast.makeText(context, "ALARM_BOOT_COMPLETED", Toast.LENGTH_LONG).show();

        } else if (action.equals("isFromAlram")) {
            Logger.errorLog("From Service", "yes");

        }
    }
}

并在menifest文件中给予权限android：name =＆＃34; android.permission.RECEIVE_BOOT_COMPLETED＆＃34;

接收器

android:name="com.chatapi.ChatApi.MyBroadcastReceiver"
        android:enabled="true"

编辑此处为接收器的完整清单条目

<receiver android:name=".AlarmNotificationReceiver"
    android:enabled="true"
    android:process=":remote">
    <intent-filter>
        <action android:name="android.intent.action.BOOT_COMPLETED" />
        <action android:name="isFromAlram" > </action>
    </intent-filter>
</receiver>

Answer 1

您应该添加日志记录，以查看是否在设备启动时调用了BroadcastReceiver。使用Toast这是一个坏主意，你可能永远不会看到它。使用日志记录并检查logcat。

警报不会通过设备启动保留。设备启动时，应调用BroadcastReceiver。然后，您需要再次设置闹钟。

设置Android的特定日期和时间的一次性警报

1 个答案: