Android无法打开相册查看视频

最近公司做了一个项目需要查看手机视频，在android 8的模拟器上正常。在android 5.1的模拟器下却报了一个错误:

 Caused by: java.lang.SecurityException: Permission Denial: starting Intent { act=android.intent.action.PICK dat=content://media/external/video/media cmp=com.android.music/.VideoBrowserActivity } from ProcessRecord{1b308dad 5422:com.videoclipper.demo/u0a58} (pid=5422, uid=10058) not exported from uid 10036 

讲道理不应该有权限问题的。因为target为21,而且api22没有运行时权限，android 8也可以正常运行。这个现象真的很莫名其妙啊。经过搜索找到了一种解决方法:原文

 // contentId will have the video content id as given by Content Resolver // In this nparticular application, contentId is retrieved from ListActivity with custom adapter Uri contentUri = ContentUris.withAppendedId(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, contentId); try { Intent intent = new Intent(Intent.ACTION_VIEW, contentUri); startActivity(intent); } catch (ActivityNotFoundException e) {//SecurityException 也可以 Toast.makeText(this, "Not Supported", Toast.LENGTH_SHORT).show(); } 

要调用 Gallery browser 使用以下代码:

someMethod() { Intent intent = new Intent(Intent.ACTION_PICK, null); intent.setType("video/*"); startActivityForResult(intent, 1); } 

@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if ((requestCode == 1) && (resultCode == RESULT_OK) && (data != null)) { Log.i("---------------------", data.getData().getEncodedPath()); mIntentFromGallery = data; Intent intent = new Intent(Intent.ACTION_MAIN, null); intent.setType("video/*"); intent.setData(data.getData()); try { startActivity(intent); } catch(Exception e) { } } else { setResult(RESULT_CANCELED); finish(); } } 

综合起来的解决方案就是:

 Intent intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Video.Media.EXTERNAL_CONTENT_URI); intent.setDataAndType(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, "video/*"); startActivityForResult(intent, REQUEST_CODEE_VIDEO);