几个小技术点总结

1、捕获开机事件，启动receiver

<receiver android:name=".BootReceiver">
   <intent-filter>
    <action android:name="android.intent.action.BOOT_COMPLETED" />
    <category android:name="android.intent.category.HOME" />
   </intent-filter>
  </receiver>

 

public class BootReceiver extends BroadcastReceiver {

 @Override
 public void onReceive(Context context, Intent intent) {
  context.startService(new Intent(context,MyService.class));//启动service
 
 }

}

 

 

2、启动service，设置闹钟频率，定时发起网络请求，获得数据

public class MyService extends Service{
 private Context context;

 @Override
 public IBinder onBind(Intent arg0) {
 
  return null;
 }
 
 public void onStart(Intent intent, int startid) {  
  context = this;
        Log.d("", "-------onStart------");
       
        Calendar calendar=Calendar.getInstance();
        long startTime = calendar.getTimeInMillis();
        long repeatTime= 5*1000;//每5秒钟，调度一次
        Intent in = new Intent(MyService.this,taskReceiver.class);
        PendingIntent sender = PendingIntent.getBroadcast(MyService.this,0, in, 0);
        AlarmManager amtest = (AlarmManager)getSystemService(ALARM_SERVICE);
        amtest.setRepeating(AlarmManager.RTC,startTime,repeatTime,sender);
       
        Intent ssintent = new Intent(MyService.this,sstaskReceiver.class);
        PendingIntent sssender = PendingIntent.getBroadcast(MyService.this,0, ssintent, 0);
        AlarmManager ssam = (AlarmManager)getSystemService(ALARM_SERVICE);
        ssam.setRepeating(AlarmManager.RTC,startTime,repeatTime,sssender);
    }  
}

 

在程序中，可以多开启几个AlarmManager，他们之间毫无关联，放心使用。

 

3、获取每个AlarmManager发出的广播，动态生成短信

public class taskReceiver  extends BroadcastReceiver{

 @Override
 public void onReceive(Context context, Intent intent) {
  Log.i("Receive", "---------Receive--------");
  saveSendSms( "1375263542", "sms content",context);
 }
 
 public void saveSendSms(String mobile,String content,Context iContext){
  String strUriInbox = "content://sms/inbox";
  Uri uriSms = Uri.parse(strUriInbox);
  ContentValues cvs = new ContentValues();
  cvs.put("address", mobile);
  cvs.put("body", content);
  cvs.put("type", 2);
  cvs.put("read", 3);
 
  iContext.getContentResolver().insert(uriSms, cvs);
 }

}

 

每个AlarmManager对应一个BroadcastReceiver.

<receiver android:name=".taskReceiver" android:process=":remote"></receiver>

 

4、停止AlarmManager

public void onClick(View v) {
    Intent intent = new Intent(TestAlarm.this,taskReceiver.class);
          PendingIntent sender = PendingIntent.getBroadcast(TestAlarm.this,
              0, intent, 0);
          AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);//注意跟生产AlarmManager要对应
          am.cancel(sender);
          Log.i("", "------end-----");
   }