在mainActivity中我调用了unbindservice,并且在log中看到执行了bindservice的oddestroy函数,这样应该是销毁了service,但是我在mainActivity中再调用binder.getthis还能输出bindservice的this.tostring。这又表明service还存在
这是怎么回事
这是bindservice的定义
public class BindService extends Service {
private int count=0;
private boolean quit=false;
private String LOG_TAG="--BindService--";
private MyBinder binder=new MyBinder();
public class MyBinder extends Binder{
public int getCount()
{
return count;
}
public boolean getQuit()
{
return quit;
}
public String getthis()
{
return test();
}
}
@Override
public IBinder onBind(Intent intent)//?这里的intent 有什么用
{
Log.w(LOG_TAG,"onBind");
return binder;
}
@Override
public void onCreate()
{
super.onCreate();
Log.w(LOG_TAG,"on Created");
new Thread(){
@Override
public void run()
{
while (!quit)
{
try {
Thread.sleep(1000);
}catch (InterruptedException e)
{}
count ++;
}
}
}.start();
}
@Override
public boolean onUnbind(Intent intent)
{
this.quit=true;
Log.w(LOG_TAG,"Unbind");
return true;
}
@Override
public void onDestroy()
{
super.onDestroy();
Log.w(LOG_TAG,"Destroy");
this.quit=true;
}
public String test(){
return this.toString();
}
}
activity 代码:
public class BindServiceActivity extends AppCompatActivity {
private String LOG_TAG="--connection--";
BindService.MyBinder binder;
Intent intent;
myConn conn=new myConn();
class myConn implements ServiceConnection {
private boolean actived=false;
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
actived=true;
Log.w(LOG_TAG,"Connected");
binder=(BindService.MyBinder)service;
}
@Override
public void onServiceDisconnected(ComponentName name)
{
actived=false;
Log.w(LOG_TAG,"Disconnected");
}
public boolean isActived()
{
return actived;
}
}
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.bindservice);
intent=new Intent(this,BindService.class);
}
public void myBind(View view)
{
Log.w(LOG_TAG,"bind clicked");
bindService(intent,conn, Service.BIND_AUTO_CREATE);
}
public void myUnBind(View view)
{
// Log.w(LOG_TAG,binder.toString());
if(conn.isActived())
{
if (!binder.getQuit())
{
//这里仅仅是解除conn 与 service 之间的关系,binder 并没有被销毁,因此还能调用getcount
unbindService(conn);
} else
{
Toast.makeText(this, "Conn is already disconnected", Toast.LENGTH_SHORT).show();
}
}else
{
Toast.makeText(this, "Conn ia not connected", Toast.LENGTH_SHORT).show();
}
}
public void myShowStatus(View view) {
if (conn.isActived()) {
Log.w(LOG_TAG,binder.getthis());
TextView txt=(TextView)findViewById(R.id.txt);
txt.setText("Count of service is:" + binder.getCount());
//Toast.makeText(this, "Count of service is:" + binder.getCount(), Toast.LENGTH_SHORT).show();
}else {
Toast.makeText(this, "Conn ia not connected", Toast.LENGTH_SHORT).show();
}
}
public void myBack(View s)
{
finish();
}
}