当我在 19 API 中打开我的图片库时，没有看到画廊，但在 23API 中它在 android studio 中显示了画廊？
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【中文标题】当我在 19 API 中打开我的图片库时，没有看到画廊，但在 23API 中它在 android studio 中显示了画廊？【英文标题】：when i open my image gallery in 19 API gallery is not seen but in 23API It shows gallery In android studio? 【发布时间】：2017-06-04 07:25:44 【问题描述】：当我在 19 API 中打开我的图片库时，没有看到画廊，但在 23API 中它显示了画廊在 android studio 中有什么问题请帮忙。我已经共享了 19 api 和 23 api 的图片。 API19 gallery resultAPI23 gallery result
public class DocumentsFragment extends Fragment implements View.OnClickListener, DocumentImageEventListener
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
// TODO: Rename and change types of parameters
private String mParam1;
private String mParam2;
private OnFragmentInteractionListener mListener;
FragmentDocumentsBinding fragmentDocumentsBinding;
private int PICK_IMAGE_REQUEST = 1;
private int PICK_VIDEO_REQUEST = 2;
private int PICK_MULTIPLE_IMAGE_REQUEST = 3;
CountDownTimer countDownTimer;
int currentItemPosition = 0;
private DocumentImagesAdapter documentImagesAdapter;
public DocumentsFragment()
// Required empty public constructor
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* @param param1 Parameter 1.
* @param param2 Parameter 2.
* @return A new instance of fragment DocumentsFragment.
*/
// TODO: Rename and change types and number of parameters
public static DocumentsFragment newInstance(String param1, String param2)
DocumentsFragment fragment = new DocumentsFragment();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
@Override
public void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
if (getArguments() != null)
mParam1 = getArguments().getString(ARG_PARAM1);
mParam2 = getArguments().getString(ARG_PARAM2);
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState)
fragmentDocumentsBinding = DataBindingUtil.inflate(inflater, R.layout.fragment_documents, container, false);
((AppCompatActivity) getActivity()).getSupportActionBar().setTitle("Media");
setListeners();
return fragmentDocumentsBinding.getRoot();
private void setListeners()
fragmentDocumentsBinding.selectPhoto.setOnClickListener(this);
fragmentDocumentsBinding.selectVideo.setOnClickListener(this);
fragmentDocumentsBinding.video.setOnPreparedListener(new MediaPlayer.OnPreparedListener()
@Override
public void onPrepared(MediaPlayer mp)
mp.setOnVideoSizeChangedListener(new MediaPlayer.OnVideoSizeChangedListener()
@Override
public void onVideoSizeChanged(MediaPlayer mp, int width, int height)
/*
* add media controller
*/
MediaController mc = new MediaController(getActivity());
fragmentDocumentsBinding.video.setMediaController(mc);
/*
* and set its position on screen
*/
mc.setAnchorView(fragmentDocumentsBinding.video);
);
);
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data)
super.onActivityResult(requestCode, resultCode, data);
// if (requestCode == PICK_IMAGE_REQUEST && resultCode == RESULT_OK && data != null && data.getData() != null)
//
// Uri uri = data.getData();
//
// try
// Bitmap bitmap = MediaStore.Images.Media.getBitmap(getActivity().getContentResolver(), uri);
// // Log.d(TAG, String.valueOf(bitmap));
//
// fragmentDocumentsBinding.image.setImageBitmap(bitmap);
// fragmentDocumentsBinding.image.setVisibility(View.VISIBLE);
// fragmentDocumentsBinding.video.setVisibility(View.GONE);
// catch (IOException e)
// e.printStackTrace();
//
//
if (requestCode == PICK_MULTIPLE_IMAGE_REQUEST && resultCode == RESULT_OK && data != null)
ArrayList<Uri> images = new ArrayList<>();
if (data.getClipData() != null)
try
for (int i = 0; i < data.getClipData().getItemCount(); i++)
Uri uri = data.getClipData().getItemAt(i).getUri();
// Bitmap bitmap = MediaStore.Images.Media.getBitmap(getActivity().getContentResolver(), uri);
images.add(uri);
startTimer(data.getClipData().getItemCount());
catch (Exception e)
e.printStackTrace();
else if (data.getData() != null)
images.add(data.getData());
documentImagesAdapter = new DocumentImagesAdapter(getActivity(), images, this);
fragmentDocumentsBinding.imagePager.setAdapter(documentImagesAdapter);
fragmentDocumentsBinding.circleIndicator.setViewPager(fragmentDocumentsBinding.imagePager);
// fragmentDocumentsBinding.circleIndicator.setOnPageChangeListener(fragmentDocumentsBinding.imagePager);
// fragmentDocumentsBinding.imagePager.setImageBitmap(bitmap);
fragmentDocumentsBinding.imagePager.setVisibility(View.VISIBLE);
fragmentDocumentsBinding.video.setVisibility(View.GONE);
fragmentDocumentsBinding.noDataMessage.setVisibility(View.GONE);
else if (requestCode == PICK_VIDEO_REQUEST && resultCode == RESULT_OK && data != null && data.getData() != null)
Uri selectedImageUri = data.getData();
// OI FILE Manager
String filemanagerstring = selectedImageUri.getPath();
// MEDIA GALLERY
String selectedImagePath = getRealPathFromURI(selectedImageUri);
fragmentDocumentsBinding.video.setVideoPath(selectedImagePath);
fragmentDocumentsBinding.imagePager.setVisibility(View.GONE);
fragmentDocumentsBinding.video.setVisibility(View.VISIBLE);
fragmentDocumentsBinding.video.start();
fragmentDocumentsBinding.noDataMessage.setVisibility(View.GONE);
void startTimer(final int itemCount)
long millisInFuture = (itemCount + 1) * 3000;
countDownTimer = new CountDownTimer(millisInFuture, 3000)
@Override
public void onTick(long l)
fragmentDocumentsBinding.circleIndicator.setCurrentItem(currentItemPosition++);
@Override
public void onFinish()
currentItemPosition = 0;
startTimer(itemCount);
.start();
// public String getRealPathFromURI(Uri uri)
// String[] projection = MediaStore.Video.Media.DATA;
// Cursor cursor = getActivity().managedQuery(uri, projection, null, null, null);
// if (cursor != null)
// // HERE YOU WILL GET A NULLPOINTER IF CURSOR IS NULL
// // THIS CAN BE, IF YOU USED OI FILE MANAGER FOR PICKING THE MEDIA
// int column_index = cursor
// .getColumnIndexOrThrow(MediaStore.Video.Media.DATA);
// cursor.moveToFirst();
// return cursor.getString(column_index);
// else
// return null;
//
private String getRealPathFromURI(Uri contentURI)
// acquisition
String[] projection =
MediaStore.Video.Media._ID,
MediaStore.Video.Media.DISPLAY_NAME,
MediaStore.Video.Media.DURATION,
MediaStore.Video.Media.DATA
;
Cursor cursor = getActivity().getContentResolver().query(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, projection, MediaStore.Video.Media._ID + "=" + contentURI.getLastPathSegment().split(":")[1], null, null);
if (cursor == null) // Source is Dropbox or other similar local file path
return contentURI.getPath();
else
cursor.moveToFirst();
int idx = cursor.getColumnIndex(MediaStore.Video.VideoColumns.DATA);
return cursor.getString(idx);
// TODO: Rename method, update argument and hook method into UI event
public void onButtonPressed(Uri uri)
if (mListener != null)
mListener.onFragmentInteraction(uri);
@Override
public void onAttach(Context context)
super.onAttach(context);
if (context instanceof OnFragmentInteractionListener)
mListener = (OnFragmentInteractionListener) context;
else
// throw new RuntimeException(context.toString()
// + " must implement OnFragmentInteractionListener");
@Override
public void onDetach()
super.onDetach();
mListener = null;
@Override
public void onClick(View view)
if (view == fragmentDocumentsBinding.selectPhoto)
currentItemPosition = 0;
if (countDownTimer != null)
countDownTimer.cancel();
callGalleryForImage();
else if (view == fragmentDocumentsBinding.selectVideo)
currentItemPosition = 0;
if (countDownTimer != null)
countDownTimer.cancel();
callGalleryForVideo();
void callGalleryForImage()
Intent intent = new Intent();
// Show only images, no videos or anything else
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
// Always show the chooser (if there are multiple options available)
startActivityForResult(Intent.createChooser(intent, "Select Pictures"), PICK_MULTIPLE_IMAGE_REQUEST);
void callGalleryForVideo()
Intent intent = new Intent();
// Show only images, no videos or anything else
intent.setType("video/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
// Always show the chooser (if there are multiple options available)
startActivityForResult(Intent.createChooser(intent, "Select Video"), PICK_VIDEO_REQUEST);
@Override
public void onImageClick(View view, Uri uri)
Intent imageViewer = new Intent(getActivity(), ImageViewerActivity.class);
imageViewer.putExtra("imageUri", uri.toString());
startActivity(imageViewer);
/**
* This interface must be implemented by activities that contain this
* fragment to allow an interaction in this fragment to be communicated
* to the activity and potentially other fragments contained in that
* activity.
* <p>
* See the Android Training lesson <a href=
* "http://developer.android.com/training/basics/fragments/communicating.html"
* >Communicating with Other Fragments</a> for more information.
*/
public interface OnFragmentInteractionListener
// TODO: Update argument type and name
void onFragmentInteraction(Uri uri);
【问题讨论】：
展示你尝试了什么，你是如何打开画廊的，给我们一些关于你做了什么的线索...... 【参考方案1】：有没有权限问题？
什么是目标API？
如果目标 api >= 23 你应该使用运行时权限
https://developer.android.com/training/permissions/requesting.html
【讨论】：
感谢回复，目标api是24，最小值是9 你可以尝试更改目标api 21以上是关于当我在 19 API 中打开我的图片库时，没有看到画廊，但在 23API 中它在 android studio 中显示了画廊？的主要内容，如果未能解决你的问题，请参考以下文章