public static synchronized boolean isVoicePermission() {
AudioRecord record = null;
try {
record = new AudioRecord(MediaRecorder.AudioSource.MIC, 22050,
AudioFormat.CHANNEL_CONFIGURATION_MONO,
AudioFormat.ENCODING_PCM_16BIT,
AudioRecord.getMinBufferSize(22050,
AudioFormat.CHANNEL_CONFIGURATION_MONO,
AudioFormat.ENCODING_PCM_16BIT));
record.startRecording();
int recordingState = record.getRecordingState();
if (recordingState == AudioRecord.RECORDSTATE_STOPPED) {
return false;
}
//第一次 為true時,先釋放資源,在進行一次判定
//************
record.release();
record = new AudioRecord(MediaRecorder.AudioSource.MIC, 22050,
AudioFormat.CHANNEL_CONFIGURATION_MONO,
AudioFormat.ENCODING_PCM_16BIT,
AudioRecord.getMinBufferSize(22050,
AudioFormat.CHANNEL_CONFIGURATION_MONO,
AudioFormat.ENCODING_PCM_16BIT));
record.startRecording();
int recordingState1 = record.getRecordingState();
if (recordingState1 == AudioRecord.RECORDSTATE_STOPPED) {
}
//**************
//如果兩次都是true, 就返回true 原因未知
return true;
} catch (Exception e) {
return false;
} finally {
if (record != null) {
record.release();
}
}
}
只判定一次的話 ,一般第一次拒絕 會得到true,表示有權限,但是再次獲取 就會為false,不知道什么原理
據說是判定有沒有被占用,表示疑問
