Question

当我尝试（我认为）在我的物理设备的外部存储器（nexus 5 android 6.0）中创建一个文件时，我有一个权限异常，而它与4.3模拟设备一起工作正常。我的权限很好，但是我收到了这个错误：

java.lang.SecurityException: Permission Denial: starting Intent { act=android.media.action.VIDEO_CAPTURE flg=0x3 cmp=com.google.android.GoogleCamera/com.android.camera.VideoCamera clip={text/uri-list U:file:///storage/emulated/0/Pictures/MyCameraApp/VID_20151216_145322.mp4} (has extras) } from ProcessRecord{5dab894 22712:com.***} (pid=22712, uid=10199) with revoked permission android.permission.CAMERA

任何想法？

我将添加更多信息：

我的媒体工具是谷歌视频教程的基本复制/粘贴：

public class MediaUtils {

    public static final int MEDIA_TYPE_IMAGE = 1;
    public static final int MEDIA_TYPE_VIDEO = 2;

    /** Create a file Uri for saving an image or video */
    public static Uri getOutputMediaFileUri(int type){
        return Uri.fromFile(getOutputMediaFile(type));
    }

    /** Create a File for saving an image or video */
    public static File getOutputMediaFile(int type){
        // To be safe, you should check that the SDCard is mounted
        // using Environment.getExternalStorageState() before doing this.

        File mediaStorageDir = new File(Environment.getExternalStoragePublicDirectory(
                Environment.DIRECTORY_PICTURES), "MyCameraApp");
        // This location works best if you want the created images to be shared
        // between applications and persist after your app has been uninstalled.

        // Create the storage directory if it does not exist
        if (! mediaStorageDir.exists()){
            if (! mediaStorageDir.mkdirs()){
                Log.d("MyCameraApp", "failed to create directory");
                return null;
            }
        }

        // Create a media file name
        String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
        File mediaFile;
        if (type == MEDIA_TYPE_IMAGE){
            mediaFile = new File(mediaStorageDir.getPath() + File.separator +
                    "IMG_"+ timeStamp + ".jpg");
        } else if(type == MEDIA_TYPE_VIDEO) {
            mediaFile = new File(mediaStorageDir.getPath() + File

                    .separator +
                    "VID_"+ timeStamp + ".mp4");
        } else {
            return null;
        }

        return mediaFile;
    }

}

我的意图：

Uri fileUri = MediaUtils.getOutputMediaFileUri(MediaUtils.MEDIA_TYPE_VIDEO);
Intent takeVideoIntent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
takeVideoIntent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);

startActivityForResult(takeVideoIntent, ACTION_TAKE_VIDEO);

Answer 1

API 23及更高版本上有一个新的权限系统。在运行时请求许可。

您应该阅读此How to manage permission on Android 6.0和此Android request permission

在Android帖子4.3中无法在外部存储上记录相机mp4

1 个答案: