Android 使用Chronometer,但退出Chronometer所在的界面,Chronometer就会自动停止。
如何使Chronometer退出界面后仍在继续
begin1.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if(isChecked){
chronometer.start();// 开始计时
chronometer.setBase(SystemClock.elapsedRealtime()-recordingTime);
}
if(!isChecked){
chronometer.stop();// 停止计时
recordingTime=SystemClock.elapsedRealtime()-chronometer.getBase();
recordingTime1=recordingTime/1000;
sprent= (float) (0.1*recordingTime1);
}