package me.nereo.multi_image_selector;
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import android.Manifest;
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import android.app.Activity;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.content.pm.PackageManager;
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import android.content.res.Configuration;
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import android.database.Cursor;
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import android.graphics.Color;
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import android.graphics.Point;
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import android.graphics.drawable.ColorDrawable;
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import android.net.Uri;
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import android.os.Build;
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import android.os.Bundle;
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import android.os.Handler;
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import android.provider.MediaStore;
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import android.support.annotation.NonNull;
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import android.support.annotation.Nullable;
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import android.support.v4.app.Fragment;
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import android.support.v4.app.LoaderManager;
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import android.support.v4.content.ContextCompat;
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import android.support.v4.content.CursorLoader;
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import android.support.v4.content.FileProvider;
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import android.support.v4.content.Loader;
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import android.support.v7.app.AlertDialog;
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import android.support.v7.widget.ListPopupWindow;
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import android.text.TextUtils;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.AbsListView;
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import android.widget.AdapterView;
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import android.widget.GridView;
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import android.widget.TextView;
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import android.widget.Toast;
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import com.squareup.picasso.Picasso;
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import java.io.File;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.List;
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import me.nereo.multi_image_selector.adapter.FolderAdapter;
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import me.nereo.multi_image_selector.adapter.ImageGridAdapter;
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import me.nereo.multi_image_selector.bean.Folder;
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import me.nereo.multi_image_selector.bean.Image;
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import me.nereo.multi_image_selector.utils.FileUtils;
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import me.nereo.multi_image_selector.utils.ScreenUtils;
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/**
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* Multi image selector Fragment
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* Created by Nereo on 2015/4/7.
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* Updated by nereo on 2016/5/18.
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*/
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public class MultiImageSelectorFragment extends Fragment {
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public static final String TAG = "MultiImageSelectorFragment";
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private static final int REQUEST_STORAGE_WRITE_ACCESS_PERMISSION = 110;
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private static final int REQUEST_CAMERA = 100;
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private static final String KEY_TEMP_FILE = "key_temp_file";
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// Single choice
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public static final int MODE_SINGLE = 0;
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// Multi choice
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public static final int MODE_MULTI = 1;
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/** Max image size，int，*/
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public static final String EXTRA_SELECT_COUNT = "max_select_count";
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/** Select mode，{@link #MODE_MULTI} by default */
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public static final String EXTRA_SELECT_MODE = "select_count_mode";
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/** Whether show camera，true by default */
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public static final String EXTRA_SHOW_CAMERA = "show_camera";
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/** Original data set */
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public static final String EXTRA_DEFAULT_SELECTED_LIST = "default_list";
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// loaders
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private static final int LOADER_ALL = 0;
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private static final int LOADER_CATEGORY = 1;
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// image result data set
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private ArrayList<String> resultList = new ArrayList<>();
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// folder result data set
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private ArrayList<Folder> mResultFolder = new ArrayList<>();
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private GridView mGridView;
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private Callback mCallback;
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private ImageGridAdapter mImageAdapter;
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private FolderAdapter mFolderAdapter;
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private ListPopupWindow mFolderPopupWindow;
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private TextView mCategoryText;
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private View mPopupAnchorView;
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private boolean hasFolderGened = false;
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private File mTmpFile;
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@Override
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public void onAttach(Context context) {
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super.onAttach(context);
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try {
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mCallback = (Callback) getActivity();
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}catch (ClassCastException e){
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throw new ClassCastException("The Activity must implement MultiImageSelectorFragment.Callback interface...");
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}
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}
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@Override
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public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
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return inflater.inflate(R.layout.mis_fragment_multi_image, container, false);
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}
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@Override
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public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
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super.onViewCreated(view, savedInstanceState);
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final int mode = selectMode();
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if(mode == MODE_MULTI) {
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ArrayList<String> tmp = getArguments().getStringArrayList(EXTRA_DEFAULT_SELECTED_LIST);
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if(tmp != null && tmp.size()>0) {
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resultList = tmp;
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}
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}
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mImageAdapter = new ImageGridAdapter(getActivity(), showCamera(), 3);
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mImageAdapter.showSelectIndicator(mode == MODE_MULTI);
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mPopupAnchorView = view.findViewById(R.id.footer);
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mCategoryText = (TextView) view.findViewById(R.id.category_btn);
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mCategoryText.setText(R.string.mis_folder_all);
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mCategoryText.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View view) {
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if(mFolderPopupWindow == null){
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createPopupFolderList();
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}
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if (mFolderPopupWindow.isShowing()) {
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mFolderPopupWindow.dismiss();
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} else {
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mFolderPopupWindow.show();
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int index = mFolderAdapter.getSelectIndex();
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index = index == 0 ? index : index - 1;
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mFolderPopupWindow.getListView().setSelection(index);
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}
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}
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});
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mGridView = (GridView) view.findViewById(R.id.grid);
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mGridView.setAdapter(mImageAdapter);
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mGridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
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@Override
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public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
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if (mImageAdapter.isShowCamera()) {
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if (i == 0) {
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showCameraAction();
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} else {
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Image image = (Image) adapterView.getAdapter().getItem(i);
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selectImageFromGrid(image, mode);
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}
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} else {
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Image image = (Image) adapterView.getAdapter().getItem(i);
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selectImageFromGrid(image, mode);
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}
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}
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});
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mGridView.setOnScrollListener(new AbsListView.OnScrollListener() {
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@Override
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public void onScrollStateChanged(AbsListView view, int scrollState) {
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if (scrollState == SCROLL_STATE_FLING) {
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Picasso.get().pauseTag(TAG);
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} else {
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Picasso.get().resumeTag(TAG);
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}
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}
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@Override
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public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
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}
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});
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mFolderAdapter = new FolderAdapter(getActivity());
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}
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/**
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* Create popup ListView
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*/
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private void createPopupFolderList() {
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Point point = ScreenUtils.getScreenSize(getActivity());
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int width = point.x;
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int height = (int) (point.y * (4.5f/8.0f));
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mFolderPopupWindow = new ListPopupWindow(getActivity());
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mFolderPopupWindow.setBackgroundDrawable(new ColorDrawable(Color.WHITE));
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mFolderPopupWindow.setAdapter(mFolderAdapter);
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mFolderPopupWindow.setContentWidth(width);
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mFolderPopupWindow.setWidth(width);
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mFolderPopupWindow.setHeight(height);
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mFolderPopupWindow.setAnchorView(mPopupAnchorView);
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mFolderPopupWindow.setModal(true);
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mFolderPopupWindow.setOnItemClickListener(new AdapterView.OnItemClickListener() {
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@Override
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public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
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mFolderAdapter.setSelectIndex(i);
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final int index = i;
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final AdapterView v = adapterView;
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new Handler().postDelayed(new Runnable() {
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@Override
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public void run() {
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mFolderPopupWindow.dismiss();
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if (index == 0) {
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getActivity().getSupportLoaderManager().restartLoader(LOADER_ALL, null, mLoaderCallback);
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mCategoryText.setText(R.string.mis_folder_all);
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if (showCamera()) {
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mImageAdapter.setShowCamera(true);
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} else {
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mImageAdapter.setShowCamera(false);
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}
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} else {
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Folder folder = (Folder) v.getAdapter().getItem(index);
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if (null != folder) {
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mImageAdapter.setData(folder.images);
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mCategoryText.setText(folder.name);
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if (resultList != null && resultList.size() > 0) {
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mImageAdapter.setDefaultSelected(resultList);
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}
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}
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mImageAdapter.setShowCamera(false);
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}
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mGridView.smoothScrollToPosition(0);
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}
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}, 100);
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}
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});
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}
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@Override
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public void onSaveInstanceState(Bundle outState) {
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super.onSaveInstanceState(outState);
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outState.putSerializable(KEY_TEMP_FILE, mTmpFile);
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}
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@Override
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public void onViewStateRestored(@Nullable Bundle savedInstanceState) {
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super.onViewStateRestored(savedInstanceState);
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if (savedInstanceState != null) {
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mTmpFile = (File) savedInstanceState.getSerializable(KEY_TEMP_FILE);
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}
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}
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@Override
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public void onActivityCreated(@Nullable Bundle savedInstanceState) {
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super.onActivityCreated(savedInstanceState);
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// load image data
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getActivity().getSupportLoaderManager().initLoader(LOADER_ALL, null, mLoaderCallback);
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}
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@Override
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public void onActivityResult(int requestCode, int resultCode, Intent data) {
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super.onActivityResult(requestCode, resultCode, data);
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if(requestCode == REQUEST_CAMERA){
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if(resultCode == Activity.RESULT_OK) {
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if (mTmpFile != null) {
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if (mCallback != null) {
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mCallback.onCameraShot(mTmpFile);
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}
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}
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}else{
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// delete tmp file
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while (mTmpFile != null && mTmpFile.exists()){
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boolean success = mTmpFile.delete();
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if(success){
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mTmpFile = null;
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}
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}
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}
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}
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}
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@Override
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public void onConfigurationChanged(Configuration newConfig) {
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if(mFolderPopupWindow != null){
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if(mFolderPopupWindow.isShowing()){
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mFolderPopupWindow.dismiss();
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}
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}
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super.onConfigurationChanged(newConfig);
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}
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/**
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* Open camera
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*/
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private void showCameraAction() {
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if(ContextCompat.checkSelfPermission(getContext(), Manifest.permission.WRITE_EXTERNAL_STORAGE)
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!= PackageManager.PERMISSION_GRANTED){
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requestPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE,
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getString(R.string.mis_permission_rationale_write_storage),
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REQUEST_STORAGE_WRITE_ACCESS_PERMISSION);
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}else {
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Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
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if (intent.resolveActivity(getActivity().getPackageManager()) != null) {
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try {
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mTmpFile = FileUtils.createTmpFile(getActivity());
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} catch (IOException e) {
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e.printStackTrace();
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}
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if (mTmpFile != null && mTmpFile.exists()) {
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//安卓7.0适配
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Uri uri;
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
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uri = FileProvider.getUriForFile(getActivity(), "cn.flightfeather.thirdapp.fileProvider", mTmpFile);
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} else {
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uri = Uri.fromFile(mTmpFile);
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}
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intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
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startActivityForResult(intent, REQUEST_CAMERA);
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} else {
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Toast.makeText(getActivity(), R.string.mis_error_image_not_exist, Toast.LENGTH_SHORT).show();
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}
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} else {
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Toast.makeText(getActivity(), R.string.mis_msg_no_camera, Toast.LENGTH_SHORT).show();
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}
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}
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}
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private void requestPermission(final String permission, String rationale, final int requestCode){
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if(shouldShowRequestPermissionRationale(permission)){
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new AlertDialog.Builder(getContext())
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.setTitle(R.string.mis_permission_dialog_title)
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.setMessage(rationale)
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.setPositiveButton(R.string.mis_permission_dialog_ok, new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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requestPermissions(new String[]{permission}, requestCode);
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}
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})
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.setNegativeButton(R.string.mis_permission_dialog_cancel, null)
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.create().show();
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}else{
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requestPermissions(new String[]{permission}, requestCode);
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}
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}
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@Override
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public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
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if(requestCode == REQUEST_STORAGE_WRITE_ACCESS_PERMISSION){
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if(grantResults[0] == PackageManager.PERMISSION_GRANTED){
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showCameraAction();
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}
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} else {
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super.onRequestPermissionsResult(requestCode, permissions, grantResults);
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}
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}
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/**
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* notify callback
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* @param image image data
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*/
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private void selectImageFromGrid(Image image, int mode) {
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if(image != null) {
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if(mode == MODE_MULTI) {
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if (resultList.contains(image.path)) {
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resultList.remove(image.path);
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if (mCallback != null) {
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mCallback.onImageUnselected(image.path);
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}
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} else {
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if(selectImageCount() == resultList.size()){
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Toast.makeText(getActivity(), R.string.mis_msg_amount_limit, Toast.LENGTH_SHORT).show();
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return;
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}
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resultList.add(image.path);
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if (mCallback != null) {
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mCallback.onImageSelected(image.path);
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}
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}
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mImageAdapter.select(image);
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}else if(mode == MODE_SINGLE){
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if(mCallback != null){
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mCallback.onSingleImageSelected(image.path);
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}
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}
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}
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}
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private LoaderManager.LoaderCallbacks<Cursor> mLoaderCallback = new LoaderManager.LoaderCallbacks<Cursor>() {
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private final String[] IMAGE_PROJECTION = {
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MediaStore.Images.Media.DATA,
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MediaStore.Images.Media.DISPLAY_NAME,
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MediaStore.Images.Media.DATE_ADDED,
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MediaStore.Images.Media.MIME_TYPE,
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MediaStore.Images.Media.SIZE,
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MediaStore.Images.Media._ID };
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@Override
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public Loader<Cursor> onCreateLoader(int id, Bundle args) {
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CursorLoader cursorLoader = null;
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if(id == LOADER_ALL) {
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cursorLoader = new CursorLoader(getActivity(),
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MediaStore.Images.Media.EXTERNAL_CONTENT_URI, IMAGE_PROJECTION,
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IMAGE_PROJECTION[4]+">0 AND "+IMAGE_PROJECTION[3]+"=? OR "+IMAGE_PROJECTION[3]+"=? ",
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new String[]{"image/jpeg", "image/png"}, IMAGE_PROJECTION[2] + " DESC");
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}else if(id == LOADER_CATEGORY){
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cursorLoader = new CursorLoader(getActivity(),
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MediaStore.Images.Media.EXTERNAL_CONTENT_URI, IMAGE_PROJECTION,
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IMAGE_PROJECTION[4]+">0 AND "+IMAGE_PROJECTION[0]+" like '%"+args.getString("path")+"%'",
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null, IMAGE_PROJECTION[2] + " DESC");
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}
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return cursorLoader;
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}
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private boolean fileExist(String path){
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if(!TextUtils.isEmpty(path)){
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return new File(path).exists();
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}
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return false;
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}
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@Override
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public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
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if (data != null) {
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if (data.getCount() > 0) {
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List<Image> images = new ArrayList<>();
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data.moveToFirst();
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do{
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String path = data.getString(data.getColumnIndexOrThrow(IMAGE_PROJECTION[0]));
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String name = data.getString(data.getColumnIndexOrThrow(IMAGE_PROJECTION[1]));
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long dateTime = data.getLong(data.getColumnIndexOrThrow(IMAGE_PROJECTION[2]));
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if(!fileExist(path)){continue;}
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Image image = null;
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if (!TextUtils.isEmpty(name)) {
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image = new Image(path, name, dateTime);
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images.add(image);
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}
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if( !hasFolderGened ) {
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// get all folder data
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File folderFile = new File(path).getParentFile();
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if(folderFile != null && folderFile.exists()){
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String fp = folderFile.getAbsolutePath();
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Folder f = getFolderByPath(fp);
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if(f == null){
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Folder folder = new Folder();
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folder.name = folderFile.getName();
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folder.path = fp;
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folder.cover = image;
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List<Image> imageList = new ArrayList<>();
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imageList.add(image);
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folder.images = imageList;
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mResultFolder.add(folder);
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}else {
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f.images.add(image);
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}
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}
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}
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}while(data.moveToNext());
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mImageAdapter.setData(images);
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if(resultList != null && resultList.size()>0){
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mImageAdapter.setDefaultSelected(resultList);
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}
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if(!hasFolderGened) {
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mFolderAdapter.setData(mResultFolder);
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hasFolderGened = true;
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}
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}
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}
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}
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@Override
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public void onLoaderReset(Loader<Cursor> loader) {
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}
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};
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private Folder getFolderByPath(String path){
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if(mResultFolder != null){
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for (Folder folder : mResultFolder) {
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if(TextUtils.equals(folder.path, path)){
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return folder;
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}
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}
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}
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return null;
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}
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private boolean showCamera(){
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return getArguments() == null || getArguments().getBoolean(EXTRA_SHOW_CAMERA, true);
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}
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private int selectMode(){
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return getArguments() == null ? MODE_MULTI : getArguments().getInt(EXTRA_SELECT_MODE);
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}
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private int selectImageCount(){
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return getArguments() == null ? 9 : getArguments().getInt(EXTRA_SELECT_COUNT);
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}
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/**
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* Callback for host activity
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*/
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public interface Callback{
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void onSingleImageSelected(String path);
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void onImageSelected(String path);
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void onImageUnselected(String path);
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void onCameraShot(File imageFile);
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}
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}
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