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Apache License
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/* * Copyright (C) 2014 Freddie (Musenkishi) Lust-Hed */*from w w w . j a v a 2 s .c om*/ * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.musenkishi.wally.fragments; import android.content.ContentResolver; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.database.ContentObserver; import android.database.Cursor; import android.net.Uri; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.provider.MediaStore; import android.support.v4.app.FragmentManager; import android.support.v7.view.ActionMode; import android.util.SparseBooleanArray; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import com.musenkishi.wally.BuildConfig; import com.musenkishi.wally.R; import com.musenkishi.wally.activities.MainActivity; import com.musenkishi.wally.adapters.RecyclerSavedImagesAdapter; import com.musenkishi.wally.base.GridFragment; import com.musenkishi.wally.observers.FileChangeReceiver; import com.musenkishi.wally.util.SparseBooleanArrayParcelable; import java.util.ArrayList; import de.psdev.licensesdialog.LicensesDialogFragment; /** * SavedImagesFragment is responsible to show the user all the wallpapers that has been saved. * * Created by Musenkishi on 2014-05-11. */ public class SavedImagesFragment extends GridFragment implements Handler.Callback, ActionMode.Callback { public static final String TAG = "com.musenkishi.wally.SavedImagesFragment"; private static final String STATE_SELECTED_ITEMS = TAG + ".state.selectedItems"; private static final int GET_IMAGES_FROM_STORAGE = 357; private static final int SET_IMAGES_TO_ADAPTER = 358; private static final int UPDATE_ADAPTER = 359; private ContentObserver contentObserver; private Handler uiHandler; private Cursor cursor; private RecyclerSavedImagesAdapter recyclerSavedImagesAdapter; private ActionMode actionMode; private SparseBooleanArrayParcelable selectedItems; public static SavedImagesFragment newInstance() { SavedImagesFragment fragment = new SavedImagesFragment(); Bundle args = new Bundle(); fragment.setArguments(args); return fragment; } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setHasOptionsMenu(true); setActionBarColor(getResources().getColor(R.color.Actionbar_Saved_Background)); selectedItems = new SparseBooleanArrayParcelable(); if (savedInstanceState != null) { selectedItems = savedInstanceState.getParcelable(STATE_SELECTED_ITEMS); } } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.fragment_main, container, false); if (rootView != null) { super.onCreateView(rootView); setupAutoSizeGridView(); setupHandlers(); showLoader(); } return rootView; } @Override public void onViewCreated(View view, Bundle savedInstanceState) { super.onViewCreated(view, savedInstanceState); gridView.setClipToPadding(false); setInsets(getActivity(), gridView, false, 0, 0); } @Override public void setUserVisibleHint(boolean isVisibleToUser) { super.setUserVisibleHint(isVisibleToUser); if (isVisibleToUser) { getImages(0, null); } else { if (actionMode != null) { actionMode.finish(); } } } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { inflater.inflate(R.menu.images_saved, menu); MenuItem menuItemFilter = menu.findItem(R.id.action_licenses); if (menuItemFilter != null) { menuItemFilter.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() { @Override public boolean onMenuItemClick(MenuItem item) { final LicensesDialogFragment fragment = LicensesDialogFragment.newInstance(R.raw.notices, false); fragment.show(getFragmentManager(), null); return false; } }); } if (!BuildConfig.BUILD_TYPE.equalsIgnoreCase("release")){ menu.add("Wally " + BuildConfig.VERSION_NAME); } super.onCreateOptionsMenu(menu, inflater); } @Override public void onResume() { super.onResume(); getImages(0, null); initObserver(cursor); } @Override public void onPause() { if (cursor != null && contentObserver != null) { cursor.unregisterContentObserver(contentObserver); } super.onPause(); } @Override public void onSaveInstanceState(Bundle outState) { if (recyclerSavedImagesAdapter != null) { outState.putParcelable(STATE_SELECTED_ITEMS, recyclerSavedImagesAdapter.getSelectedItems()); } super.onSaveInstanceState(outState); } private void initObserver(Cursor cursor) { if (cursor != null) { if (contentObserver == null) { contentObserver = new ContentObserver(uiHandler) { @Override public void onChange(boolean selfChange) { super.onChange(selfChange); getImages(0, null); } }; } try { cursor.registerContentObserver(contentObserver); } catch (IllegalStateException e) { //Oh goodie, it's already registered. Nevermind then. } } } public String getRealPathFromURI(Context context, Uri contentUri) { Cursor cursor = null; try { String[] projection = {MediaStore.Images.Media.DATA}; cursor = context.getContentResolver().query(contentUri, projection, null, null, null); int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA); cursor.moveToFirst(); return cursor.getString(column_index); } finally { if (cursor != null) { cursor.close(); } } } private void setupHandlers() { uiHandler = new Handler(getActivity().getMainLooper(), this); } @Override protected void getImages(int index, String query) { if (!uiHandler.hasMessages(GET_IMAGES_FROM_STORAGE)) { uiHandler.sendEmptyMessage(GET_IMAGES_FROM_STORAGE); } } @Override public void onDestroy() { super.onDestroy(); uiHandler.removeCallbacksAndMessages(null); cursor.close(); } @Override public boolean handleMessage(Message msg) { switch (msg.what) { case GET_IMAGES_FROM_STORAGE: if (getActivity() != null) { String[] projection = {MediaStore.Images.Media._ID}; ContentResolver contentResolver = getActivity().getContentResolver(); Uri mImageUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI; cursor = contentResolver.query( mImageUri, projection, MediaStore.Images.Media.DATA + " like ? ", new String[] {"%/Wally/%"}, MediaStore.Audio.Media.DATE_ADDED + " DESC"); initObserver(cursor); int what; if (recyclerSavedImagesAdapter == null) { what = SET_IMAGES_TO_ADAPTER; } else { what = UPDATE_ADAPTER; } uiHandler.sendEmptyMessage(what); } break; case SET_IMAGES_TO_ADAPTER: hideLoader(); recyclerSavedImagesAdapter = new RecyclerSavedImagesAdapter(getFileUrisFromCursor(cursor), itemSize, selectedItems); gridView.setAdapter(recyclerSavedImagesAdapter); setupAdapter(recyclerSavedImagesAdapter); gridView.scheduleLayoutAnimation(); break; case UPDATE_ADAPTER: ArrayList<Uri> newFilePaths = getFileUrisFromCursor(cursor); ArrayList<Uri> oldFilePaths = recyclerSavedImagesAdapter.getData(); recyclerSavedImagesAdapter.setData(newFilePaths); checkIfAddedOrRemovedItem(oldFilePaths, newFilePaths); break; default: break; } return false; } private ArrayList<Uri> getFileUrisFromCursor(Cursor cursor) { ArrayList<Uri> filePaths = new ArrayList<Uri>(); if (cursor != null) { int columnIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media._ID); while (cursor.moveToNext()) { int imageID = cursor.getInt(columnIndex); Uri uri = Uri.withAppendedPath(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, Integer.toString(imageID)); filePaths.add(uri); } } return filePaths; } private void checkIfAddedOrRemovedItem(ArrayList<Uri> oldList, ArrayList<Uri> newList) { ArrayList<Uri> oldCompList = new ArrayList<Uri>(oldList); ArrayList<Uri> newCompList = new ArrayList<Uri>(newList); oldCompList.removeAll(newList); if (oldCompList.size() > 0) { //Items removed recyclerSavedImagesAdapter.notifyItemRangeRemoved( oldList.indexOf(oldCompList.get(0)), oldCompList.size() ); } newCompList.removeAll(oldList); if (newCompList.size() > 0) { //Items added recyclerSavedImagesAdapter.notifyItemRangeInserted( newList.indexOf(newCompList.get(0)), newCompList.size() ); } } public void setupAdapter(RecyclerSavedImagesAdapter adapter) { adapter.setOnItemClickListener(new RecyclerSavedImagesAdapter.OnItemClickListener() { @Override public void onClick(View view, int position) { if (recyclerSavedImagesAdapter.getSelectedItemCount() > 0) { toggleSelection(position); } else { Uri contentUri = recyclerSavedImagesAdapter.getItem(position); Uri fileUri = Uri.parse("file://" + getRealPathFromURI(view.getContext(), contentUri)); FragmentManager fragmentManager = getFragmentManager(); if (fragmentManager != null) { ImageZoomFragment imageZoomFragment = ImageZoomFragment.newInstance(fileUri, position); imageZoomFragment.showFileOptions(fileUri, contentUri); imageZoomFragment.show(fragmentManager, ImageZoomFragment.TAG); } } } @Override public void onLongClick(View view, int position) { toggleSelection(position); } }); toggleActionMode(); } private void toggleSelection(int position) { recyclerSavedImagesAdapter.toggleSelection(position); toggleActionMode(); } private void toggleActionMode() { if (recyclerSavedImagesAdapter.getSelectedItemCount() > 0) { if (actionMode == null) { actionMode = ((MainActivity) getActivity()).getSupportActionBar().startActionMode(this); } actionMode.setTitle(recyclerSavedImagesAdapter.getSelectedItemCount() + " checked"); } else { if (actionMode != null) { actionMode.finish(); } } } @Override public boolean onCreateActionMode(ActionMode mode, Menu menu) { MenuInflater inflater = mode.getMenuInflater(); inflater.inflate(R.menu.saved_images_context, menu); return true; } @Override public boolean onPrepareActionMode(ActionMode mode, Menu menu) { return false; } @Override public boolean onActionItemClicked(final ActionMode mode, MenuItem item) { if (R.id.menu_delete == item.getItemId()) { int size = 0; SparseBooleanArray checkedItems = recyclerSavedImagesAdapter.getSelectedItems(); for (int i = 0; i < checkedItems.size(); i++) { if (checkedItems.valueAt(i)) { size++; } } String quantityString = getResources().getQuantityString(R.plurals.wallpapers, size); String title = String.format(getString(R.string.dialog_delete_title), quantityString); FragmentManager fragmentManager = getFragmentManager(); if (fragmentManager != null) { final MaterialDialogFragment materialDialogFragment = new MaterialDialogFragment(); materialDialogFragment.setPrimaryColor(getResources().getColor(R.color.Dialog_Button_Delete)); materialDialogFragment.setTitle(title); materialDialogFragment.setPositiveButton(R.string.dialog_delete_positive, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { SparseBooleanArray checkedItems = recyclerSavedImagesAdapter.getSelectedItems(); for (int index = 0; index < checkedItems.size(); index++) { if (checkedItems.valueAt(index)) { Uri contentUri = recyclerSavedImagesAdapter.getItem(checkedItems.keyAt(index)); getActivity().getContentResolver().delete(contentUri, null, null); } } mode.finish(); getImages(0, null); getActivity().sendBroadcast(new Intent(FileChangeReceiver.FILES_CHANGED)); } }); materialDialogFragment.setNegativeButton(R.string.dialog_delete_negative, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { materialDialogFragment.dismiss(); } }); materialDialogFragment.show(fragmentManager, MaterialDialogFragment.TAG); } } return false; } @Override public void onDestroyActionMode(ActionMode mode) { recyclerSavedImagesAdapter.clearSelections(); actionMode = null; } }