scene one:
Description: Some Android phones, although the system is 6.0, but the dynamic applied for permission, or do not have permission pop;
Analysis: Although the phone is a 6.0 system, but prior to or use of the mechanism. Only when actually used to execute permissions and relevant code, only the pop-up permissions prompt box;
Scene Two:
Description: Android 6.0 application permissions, click the "Do not ask me after not allowed", and then check the next time, will not go callback;
Scene Three:
Description: Android 6.0, no permissions apply only when used, will pop up; once the user has denied permission to monitor, will lead to various exceptions;
For the above scenario, the solution is given below: Analog start the camera, open the analog recording
Analog camera to be launched:
public static boolean hasCameraPermission() {
try {
Camera camera = Camera.open(0);
try {
Camera.Parameters param = camera.getParameters();
if (param != null) {
camera.release();
camera = null;
return true;
} else {
camera.release();
camera = null;
return false;
}
} catch (Exception e) {
camera.release();
camera = null;
return false;
}
} catch (Exception e) {
e.printStackTrace();
return false;
}
}Analog punch recording:
public static boolean hasRecordPermission() {
int minBufferSize = AudioRecord.getMinBufferSize(8000, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT);
int bufferSizeInBytes = 640;
byte[] audioData = new byte[bufferSizeInBytes];
int readSize = 0;
AudioRecord audioRecord = null;
try {
audioRecord = new AudioRecord(MediaRecorder.AudioSource.DEFAULT, 8000,
AudioFormat.CHANNEL_IN_MONO,
AudioFormat.ENCODING_PCM_16BIT, minBufferSize);
// 开始录音
audioRecord.startRecording();
} catch (Exception e) {
//可能情况一
if (audioRecord != null) {
audioRecord.release();
audioRecord = null;
}
return false;
}
// 检测是否在录音中,6.0以下会返回此状态
if (audioRecord.getRecordingState() != AudioRecord.RECORDSTATE_RECORDING) {
//可能情况二
if (audioRecord != null) {
audioRecord.stop();
audioRecord.release();
audioRecord = null;
}
return false;
} else {// 正在录音
readSize = audioRecord.read(audioData, 0, bufferSizeInBytes);
// 检测是否可以获取录音结果
if (readSize <= 0) {
//可能情况三
if (audioRecord != null) {
audioRecord.stop();
audioRecord.release();
audioRecord = null;
}
return false;
} else {
//有权限，正常启动录音并有数据
if (audioRecord != null) {
audioRecord.stop();
audioRecord.release();
audioRecord = null;
}
return true;
}
}
}Written in the last:
This method has a problem, if the camera or recording was occupied by other applications, here also returns a failure, the other authority is there, the need to optimize
Completed. . .
