我發現了幾個關於設置報警接收器以設定時間間隔發送烘烤信息的教程。我一直在關注代碼並將我自己的項目分解成3個類。報警接收器和Android清單
的HelloDroidActivity.java是:
package com.example.helloandroid;
import java.util.Calendar;
import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;
import android.widget.Toast;
import com.example.helloandroid.alarms.MyAlarmReciever;
public class HelloDroidActivity extends Activity {
/** Called when the activity is first created. */
public static int RTC_WAKEUP;
public static long INTERVAL_FIFTEEN_MINUTES;
private AlarmManager alarmMgr;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
TextView tv = new TextView(this);
tv.setText("Hello, Krishneel");
setContentView(tv);
Toast.makeText(this, "Alarm went off", Toast.LENGTH_SHORT).show();
Log.d("OnCreate", "abcdabcdabcdabcdabcdabcdabcdabcdabcdabcd");
alarmMgr = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(this, MyAlarmReciever.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0,
intent, PendingIntent.FLAG_UPDATE_CURRENT);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.add(Calendar.SECOND, 5);
alarmMgr.setRepeating(AlarmManager.RTC_WAKEUP,
calendar.getTimeInMillis(), 7000, pendingIntent);
}
}
也MyAlarmReciever.java(我的名字已經意識到了拼寫錯誤的):
package com.example.helloandroid.alarms;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.widget.Toast;
public class MyAlarmReciever extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
Log.e("onReceive", "ladskjflsakjdflskjdflskjdfslkjdflasdf");
Toast.makeText(context, "OnReceive alarm test", Toast.LENGTH_SHORT).show();
}
}
和Android清單看起來像這個:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.helloandroid"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="7" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:name="com.example.helloandroid.HelloDroidActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name="AlarmReceiver">
<intent-filter>
<action android:name="com.example.helloandroid.alarms" />
</intent-filter>
</receiver>
</application>
</manifest>
我讀過,爲了讓項目接收到我的alarmR eceiver java class我需要用新的接收器編輯清單。但我對XML相當陌生,不知道要採取哪個方向。
我用於教程的網站之一是[http://justcallmebrian.com/?p=129](http://justcallmebrian.com/? p = 129) – kprasad89
看看這個,這個爲我工作。 http://www.dotkam.com/2011/01/10/android-prefer-alarms-and-intent-receivers-to-services/ – VendettaDroid