int _RadioButtonId = mRadioButtonGroup.getCheckedRadioButtonId(); View _RadioButton = mRadioButtonGroup.findViewById(_RadioButtonId ); int _Idx = mRadioButtonGroup.indexOfChild(_RadioButton); ((RadioButton)mRadioButtonGroup.getChildAt(_Idx)).setChecked(true); …

MediaRecorder进行录屏或摄像是怎么关闭声音？那是关闭Mic？不是的，这样根本不起作用。其实，最简单的方法就是不进行设置声音相关参数，就OK了。 pMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC); pMediaRecorder.setAudioSamplingRate(44100); pMediaRecorder.setAudioEncodingBitRate(96000); pMediaRecorder.setAudioEncode…