相关疑难解决方法(0)

在这里我试过简单的服务程序.启动服务工作正常并生成Toast但停止服务没有.这个简单服务的代码如下:

public class MailService extends Service {
    @Override
    public IBinder onBind(Intent arg0) {
        // TODO Auto-generated method stub
        return null;
    }
    public void onCreate(){
        super.onCreate();
        Toast.makeText(this, "Service Started", Toast.LENGTH_SHORT).show();
    }
    public void onDestroyed(){
        Toast.makeText(this, "Service Destroyed", Toast.LENGTH_SHORT).show();
        super.onDestroy();
    }
}

调用此服务的Activity的代码如下:

public class ServiceTest extends Activity{
    private Button start,stop;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.service_test);

        start=(Button)findViewById(R.id.btnStart);
        stop=(Button)findViewById(R.id.btnStop);

        start.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                startService(new Intent(ServiceTest.this,MailService.class));
            }
        });
        stop.setOnClickListener(new View.OnClickListener() {

            @Override …