【移动应用开发技术】Android中如何使用异步线程更新UI视图

【移动应用开发技术】Android中如何使用异步线程更新UI视图

1、runOnUiThreadrunOnUiThread(new

Runnable()

{

@Override

public

void

run()

{

sendMessage("[自动回复]你好，我是机器人");

}

});2、Handlermessage

private

Handler

mHandler

=

new

Handler()

{

public

void

handleMessage(Message

msg)

{

switch

(msg.what)

{

case

0:

setResult(RESULT_OK);

TimerButtonActivity.this.finish();

break;

case

4:

mTimer1.setEnabled(false);

mTimer1.setText("已发送("

+

String.valueOf(time)

+

")");

break;

case

5:

mTimer1.setEnabled(true);

mTimer1.setText("重新获取验证码");

time

=

10;

break;

}

}

};mHandler.sendEmptyMessage(5);3、HandlerRunnableHandler

handler

=

new

Handler();handler.postDelayed(new

Runnable()

{

@Override

public

void

run()

{

updataData();

}

},

2000);

//开启一个刷新的线程

mFragmentMainRf.post(new

Runnable()

{

@Override

public

void

run()

{

//开始

mFragmentMainRf.setRefreshing(true);

}

});

//监听刷新状态操作

mFragmentMainRf.setOnRefreshListener(new

SwipeRefreshLayout.OnRefreshListener()

{

@Override

public

void

onRefresh()

{

//设置延迟刷新时间1500

handler.postDelayed(new

Runnable()

{

@Override

public

void

run()

{

//刷新数据

updataData();

}

},

1800);

}

});4、AsyncTask

class

AsyncTaskWrapper

extends

AsyncTask<Void,

Integer,

Object>{

@Override

protected

Object

doInBackground(Void...

voids)

{

try

{

Thread.sleep(2000);

}

catch

(InterruptedException

e)

{

e.printStackTrace();

}

return

null;

}

@Override

protected

void

onProgressUpdate(Integer...

values)

{

super.onProgressUpdate(values);

Log.e("Progress",valuse);

}

@Override

protec