android关于service()
MainActivity:
package com.example.myservice1; import com.example.myservice1.Myservice.MyBinder; import android.os.Bundle; import android.os.IBinder; import android.annotation.SuppressLint; import android.app.Activity; import android.content.ComponentName; import android.content.Intent; import android.content.ServiceConnection; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.Toast; @SuppressLint("ShowToast") public class MainActivity extends Activity implements OnClickListener,ServiceConnection{ private Button start,stop,bind,unbind,get; private Intent intent; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); start=(Button) findViewById(R.id.start); stop=(Button) findViewById(R.id.stop); bind=(Button) findViewById(R.id.bind); unbind=(Button) findViewById(R.id.unbind); get=(Button) findViewById(R.id.get); start.setOnClickListener(this); stop.setOnClickListener(this); bind.setOnClickListener(this); unbind.setOnClickListener(this); get.setOnClickListener(this); intent=new Intent(MainActivity.this,Myservice.class); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } @Override public void onClick(View v) { switch (v.getId()) { case R.id.start: startService(intent); break; case R.id.stop: stopService(intent); break; case R.id.bind: bindService(intent, this, BIND_AUTO_CREATE); break; case R.id.unbind: unbindService(this); break; case R.id.get: Toast.makeText(MainActivity.this, "当前Service的值为:" + my.getIndex(), Toast.LENGTH_LONG).show(); break; default: break; } } private Myservice my; @Override public void onServiceConnected(ComponentName name, IBinder service) { System.out.println("onServiceConnected"); Myservice.MyBinder m=(MyBinder) service; my=m.getMyService(); } @Override public void onServiceDisconnected(ComponentName name) { } }
Myservice:
package com.example.myservice1; import java.util.Timer; import java.util.TimerTask; import android.app.Service; import android.content.Intent; import android.os.Binder; import android.os.IBinder; public class Myservice extends Service { private Timer timer; private TimerTask task; private int index = 0; // 与Activicy进行绑定 @Override public IBinder onBind(Intent intent) { return binder; } //得到binder对象 private MyBinder binder = new MyBinder(); //自定义已给MyBinder继承Binder实现通信 public class MyBinder extends Binder{ //获得当前Service的状态 public Myservice getMyService(){ return Myservice.this; } } @Override public void onCreate() { super.onCreate(); startTimer(); } @Override public int onStartCommand(Intent intent, int flags, int startId) { return super.onStartCommand(intent, flags, startId); } @Override public void onDestroy() { super.onDestroy(); stopTimer(); } // 开始执行Timer public void startTimer() { timer = new Timer(); task = new TimerTask() { @Override public void run() { index++; System.out.println(index); } }; timer.schedule(task, 1000, 1000); } // 停止Timer的执行 public void stopTimer() { timer.cancel(); } //实现可读性(Index) public int getIndex() { return index; } }