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我想在我的应用程序中使用Camera2 api,即使我正在使用以下代码检查运行时相机权限。Android摄像头运行时权限错误?
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED) {
cameraManager.openCamera(cameraId, stateCallBack, null);
} else {
if (shouldShowRequestPermissionRationale(Manifest.permission.CAMERA))
Toast.makeText(getApplicationContext(), "PLease allow the app to use camera app", Toast.LENGTH_LONG).show();
}
ActivityCompat.requestPermissions(CaptureImageActivity.this,new String[]{"android.manifest.permissin.CAMERA"}, CAMERA_REQUEST_RESULT);
} else {
cameraManager.openCamera(cameraId, stateCallBack, null);
}
@Override
public void onRequestPermissionsResult(int requestCode, String[] permission, int[] grantResult) {
switch (requestCode) {
case CAMERA_REQUEST_RESULT:
if (grantResult[0] == PackageManager.PERMISSION_GRANTED) {
try {
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
//this method is created because of openCamera method below i don't understand why this method is created
return;
}
cameraManager.openCamera(cameraId, stateCallBack, null);
} catch (CameraAccessException e) {
e.printStackTrace();
}
}
if (grantResult[0] != PackageManager.PERMISSION_GRANTED)
Toast.makeText(getApplicationContext(), "camera is not granted", Toast.LENGTH_LONG).show();
break;
default:
super.onRequestPermissionsResult(requestCode, permission, grantResult);
break;
}
}
我也有权限包含在AndroidManifest.xml文件中。
<uses-permission android:name="android.permission.CAMERA" />
但是,当我运行我的应用程序的权限对话框没有出现,但摄像头没有授予吐司显示出来。
1)为什么权限对话框不显示?
2)即使没有对话框显示摄像机如何不被授予敬酒出现?我搜索了很多,但没有任何帮助!
我的代码类似于你的代码,但是,这并不工作。 – Yirga