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Diffstat (limited to 'src/org/cyanogenmod/wallpapers/photophase/adapters/AlbumPictureAdapter.java')
-rw-r--r-- | src/org/cyanogenmod/wallpapers/photophase/adapters/AlbumPictureAdapter.java | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/src/org/cyanogenmod/wallpapers/photophase/adapters/AlbumPictureAdapter.java b/src/org/cyanogenmod/wallpapers/photophase/adapters/AlbumPictureAdapter.java new file mode 100644 index 0000000..addc298 --- /dev/null +++ b/src/org/cyanogenmod/wallpapers/photophase/adapters/AlbumPictureAdapter.java @@ -0,0 +1,127 @@ +/* + * Copyright (C) 2013 The CyanogenMod Project + * + * 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 org.cyanogenmod.wallpapers.photophase.adapters; + +import android.content.Context; +import android.view.LayoutInflater; +import android.view.View; +import android.view.ViewGroup; +import android.widget.AdapterView; +import android.widget.ArrayAdapter; + +import org.cyanogenmod.wallpapers.photophase.R; +import org.cyanogenmod.wallpapers.photophase.model.Picture; +import org.cyanogenmod.wallpapers.photophase.widgets.PictureItemView; + +import java.util.ArrayList; +import java.util.List; + +/** + * An implementation of {@link ArrayAdapter} an album picture + */ +public class AlbumPictureAdapter extends ArrayAdapter<Picture> { + + /** + * A class that conforms with the ViewHolder pattern to performance + * the list view rendering. + */ + private static class ViewHolder { + public ViewHolder() { + super(); + } + PictureItemView mPictureItemView; + } + + private List<Picture> mData = new ArrayList<Picture>(); + private AdapterView<?> mParent; + + /** + * Constructor of <code>AlbumPictureAdapter</code>. + * + * @param context The current context + * @param data The pictures data + */ + public AlbumPictureAdapter(Context context, List<Picture> data, AdapterView<?> parent) { + super(context, R.id.picture_thumbnail, data); + mData = data; + mParent = parent; + } + + /** + * Method that dispose the elements of the adapter. + */ + public void dispose() { + clear(); + this.mData = null; + } + + @Override + public void notifyDataSetChanged() { + int start = mParent.getFirstVisiblePosition(); + int last = mParent.getLastVisiblePosition(); + for (int i = start; i <= last; i++) { + View v = mParent.getChildAt(i); + getView(i, v, mParent, false); + } + } + + /** + * {@inheritDoc} + */ + @Override + public View getView(int position, View convertView, ViewGroup parent) { + return getView(position, convertView, parent, true); + } + + /** + * Method that returns a view for a position + * + * @param position The position + * @param convertView A reusable view or null + * @param parent The parent of the view + * @param refreshIcon If the view should refresh its icon + * @return View The view + */ + private View getView(int position, View convertView, ViewGroup parent, boolean refreshIcon) { + final Picture picture = this.mData.get(position); + + // Check to reuse view + View v = convertView; + if (v == null) { + //Create the view holder + LayoutInflater li = + (LayoutInflater)getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE); + v = li.inflate(R.layout.picture_item, parent, false); + + // Create the controller for the view + ViewHolder viewHolder = new ViewHolder(); + viewHolder.mPictureItemView = (PictureItemView)v.findViewById(R.id.picture); + viewHolder.mPictureItemView.setPicture(picture); + v.setTag(viewHolder); + } + + // Retrieve the view holder + ViewHolder viewHolder = (ViewHolder)v.getTag(); + + // Retrieve the view holder and update the view + viewHolder.mPictureItemView.updateView(picture, refreshIcon); + + // Return the view + return v; + } + +} |