安卓动态申请拍照权限，记录一下

if (ContextCompat.checkSelfPermission(AddImgActivity.this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions((Activity) AddImgActivity.this, new String[]{Manifest.permission.CAMERA}, 1);
} else {
//权限已经被授予，在这里直接写要执行的相应方法即可
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
// 指定调用相机拍照后照片的储存路径
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(tempFile));
startActivityForResult(intent, PHOTO_REQUEST_TAKEPHOTO);
}