我试图在我的Android应用中设置闹钟。但它失败了。我已经阅读了一些教程,但它们对我不起作用,我不知道我的错误在哪里。
这是我的代码:
清单:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.byethost6.jessy_barthelemy.planificate">
<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=".CreateTask"></activity>
<receiver android:name="com.byethost6.jessy_barthelemy.planificate.HourReceiver" android:process=":remote"/>
</application>
</manifest>
我设置了这样的警报:
AlarmManager alarmManager;
PendingIntent alarmIntent;
alarmManager = (AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(context, HourReceiver.class);
alarmIntent = PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_ONE_SHOT);
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY, hours);
calendar.set(Calendar.MINUTE, minutes);
alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), alarmIntent);
Toast.makeText(context, "Alarm set", Toast.LENGTH_SHORT).show();
这是我的广播接收器:
package com.byethost6.jessy_barthelemy.planificate;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.widget.Toast;
import com.byethost6.jessy_barthelemy.planificate.enumeration.TriggerEnum;
import com.byethost6.jessy_barthelemy.planificate.helper.Task;
public class HourReceiver extends BroadcastReceiver{
@Override
public void onReceive(Context context, Intent intent) {
Toast.makeText(context, "ALARM TRIGGERED", Toast.LENGTH_LONG).show();
}
}
你能帮帮我吗? :)
答案 0 :(得分:-1)
这是MainActivity
alarmManager = (AlarmManager)getApplicationContext().getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(getApplicationContext(), MyBroadcastReceiver.class);
pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), 0, intent, 0);
// Set the alarm to start at some time.
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
int curHr = calendar.get(Calendar.HOUR_OF_DAY);
// Checking whether current hour is over 14
if (curHr >= 13)
{
// Since current hour is over 14, setting the date to the next day
calendar.add(Calendar.DATE, 1);
}
calendar.set(Calendar.HOUR_OF_DAY, 13);
calendar.set(Calendar.MINUTE, 30);
// setRepeating() lets you specify a precise custom interval--in this case,
// every day
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
AlarmManager.INTERVAL_DAY, pendingIntent);
这是我的BroadcastReceiver
public class MyBroadcastReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent)
{
PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "tag");
//Acquire the lock
wl.acquire();
Log.v("ADebugTag", "It work!");
//Release the lock
wl.release();
}
}
在日志中使用此代码,您可以看到&#34;它工作&#34;当警报响起时!
清单
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="com.android.alarm.permission.SET_ALARM" />
<receiver android:name=".MyBroadcastReceiver" />