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Android编程实用技术小结

程序员文章站 2024-02-17 09:53:40
本文实例总结了android编程实用技术。分享给大家供大家参考，具体如下： 1、捕获开机事件，启动receiver

本文实例总结了android编程实用技术。分享给大家供大家参考，具体如下：

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);
 }
}

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

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.

复制代码 代码如下:
<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-----");
}

希望本文所述对大家android程序设计有所帮助。

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