HandlerThread用法

区分Handler和HandlerThread

Handler实例可以在主线程创建，也可以在子线程创建。在子线程中创建时通过Looper，以下示例：

public class MainActivity extends AppCompatActivity {    HandlerThread handlerThread;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);         handlerThread = new HandlerThread("子线程");         handlerThread.start();        Looper looper = handlerThread.getLooper();        final Handler handler = new Handler(looper) {            @Override            public void handleMessage(Message msg) {                super.handleMessage(msg);                Log.d("----->", "线程:" + Thread.currentThread().getName());            }        };        findViewById(R.id.bt).setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                handler.sendEmptyMessage(100);            }        });    }

@Override    protected void onDestroy() {        super.onDestroy();        handlerThread.quit();

}}