android自定义环形进度条怎么自由控制进度条的消失与隐藏

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_bluetoothmeter);

mhandler = new Handler();

//通过mSearcheHandler更新UI

mSearchHandler=new Handler(){

@Override

public void handleMessage(Message msg) {

super.handleMessage(msg);

if(msg.what==0){

//改变环形进度条的进度

mCircleProcessBar.setProgress(mcnt);

mcnt+=1;

if(MCNT_MAX<=mcnt){

mCircleProcessBar.setVisibility(View.GONE);

}

}

}

};

mBlueService = BluetoothLeService.getInstance();

initView();

initEvent();

}

private void initEvent()

{

mImgBtnBack.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

finish();

}

});

//搜索

mbtnSearch.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

// Prepare list view and initiate scanning

if (m_devicelistadapter != null) {

m_devicelistadapter.clear();

m_devicelistadapter.notifyDataSetChanged();

}

startScan();

//设置圆环进度条的出现时间（秒）

new TimerDelay(mSearchHandler).setDelayTime(CIRCLE_APPARE_TIME,mCircleProcessBar);

mcnt=1;

}

});

}