com.andreadec.musicplayer.ImageLoaderTask.java Source code

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Here is the source code for com.andreadec.musicplayer.ImageLoaderTask.java

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/*
 * Copyright 2013 Andrea De Cesare
 *
 * 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.andreadec.musicplayer;

import android.graphics.*;
import android.os.*;
import android.support.v4.util.*;
import android.view.View;
import android.widget.*;

public class ImageLoaderTask extends AsyncTask<Void, Void, Bitmap> {
    private PlayableItem item;
    private ImageView imageView;
    private LruCache<String, Bitmap> imagesCache;
    private int listImageSize;

    public ImageLoaderTask(PlayableItem item, ImageView imageView, LruCache<String, Bitmap> imagesCache,
            int listImageSize) {
        this.item = item;
        this.imageView = imageView;
        this.listImageSize = listImageSize;
        this.imagesCache = imagesCache;
    }

    @Override
    protected Bitmap doInBackground(Void... params) {
        Bitmap originalImage = item.getImage();
        if (originalImage == null)
            return null;
        Bitmap image = Bitmap.createScaledBitmap(originalImage, listImageSize, listImageSize, true);
        synchronized (imagesCache) {
            imagesCache.put(item.getPlayableUri(), image);
        }
        originalImage = null;
        return image;
    }

    @Override
    protected void onPostExecute(Bitmap image) {
        if (image != null) {
            imageView.setImageBitmap(image);
            imageView.setVisibility(View.VISIBLE);
        }
    }
}