[英]How to set alarm 3 times a day?
我想制作一個在特定時間調用意圖的程序,每天8點吃早餐,1點吃午餐,每天六點半吃晚餐。
我怎樣才能做到這一點? 這是因為如果我使用AlarmManager.INTERVAL_DAY / 3
,它不能給出特定的時間。
還是我可以使用其他班級?
這是我的代碼:
package com.makansehat;
import java.util.Calendar;
import android.app.*;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
// import android.widget.EditText;
import android.widget.Toast;
/**
* @author Prabu
*/
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void startAlert(View view) {
Calendar skr = Calendar.getInstance();
pagi.set(Calendar.HOUR_OF_DAY, 8);
pagi.set(Calendar.MINUTE, 53);
Calendar siang = Calendar.getInstance();
siang.set(Calendar.HOUR_OF_DAY, 8);
siang.set(Calendar.MINUTE, 55);
Calendar malam = Calendar.getInstance();
malam.set(Calendar.HOUR_OF_DAY, 8);
malam.set(Calendar.MINUTE, 59);
// EditText text = (EditText) findViewById(R.id.time);
// int i = Integer.parseInt(text.getText().toString());
Intent intent = new Intent(getApplicationContext(), MyBroadcastReceiver.class);
PendingIntent pi = PendingIntent.getBroadcast(getApplicationContext(), 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, pagi.getTimeInMillis(), siang.getTimeInMillis(), pi);
}
}
您應該創建3個警報:
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, pagi.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pi);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, siang.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pi);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, malam.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pi);
在這里,我附加了“代碼”以喚醒設備以恰好在上午8:30觸發警報,此后每20分鍾觸發一次:
private AlarmManager alarmMgr;
private PendingIntent alarmIntent;
...
alarmMgr = (AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(context, AlarmReceiver.class);
alarmIntent = PendingIntent.getBroadcast(context, 0, intent, 0);
// Set the alarm to start at 8:30 a.m.
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR_OF_DAY, 8);
calendar.set(Calendar.MINUTE, 30);
// setRepeating() lets you specify a precise custom interval--in this case,
// 20 minutes.
alarmMgr.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
1000 * 60 * 20, alarmIntent);
我希望您能理解我該怎么說,只需將您的第一次設置為calander,然后在使用for循環手動給定間隔之后就可以了:例如,時間表是觸發警報的第二,第三等時間間隔
for(int i=0;i<timelist.size();i++){
alarmMgr.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
timelist[i], alarmIntent);
}
或執行任務的第二種方法采取三個警報管理器並設置您的時間。
希望對您有幫助...
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