com.baijiahulian.common.crop.utils.FrescoImageLoader.java Source code

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Here is the source code for com.baijiahulian.common.crop.utils.FrescoImageLoader.java

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/*
 * Copyright (C) 2014 pengjianbo(pengjianbosoft@gmail.com), Inc.
 *
 * 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.baijiahulian.common.crop.utils;

import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.drawable.Animatable;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.support.v4.content.ContextCompat;
import android.widget.ImageView;

import com.baijiahulian.common.crop.R;
import com.baijiahulian.common.crop.uikit.GFImageView;
import com.facebook.common.references.CloseableReference;
import com.facebook.common.util.UriUtil;
import com.facebook.datasource.DataSource;
import com.facebook.drawee.backends.pipeline.Fresco;
import com.facebook.drawee.controller.BaseControllerListener;
import com.facebook.drawee.drawable.ProgressBarDrawable;
import com.facebook.drawee.drawable.ScalingUtils;
import com.facebook.drawee.generic.GenericDraweeHierarchy;
import com.facebook.drawee.generic.GenericDraweeHierarchyBuilder;
import com.facebook.drawee.interfaces.DraweeController;
import com.facebook.drawee.view.DraweeHolder;
import com.facebook.imagepipeline.common.ResizeOptions;
import com.facebook.imagepipeline.core.ImagePipeline;
import com.facebook.imagepipeline.core.ImagePipelineConfig;
import com.facebook.imagepipeline.image.CloseableImage;
import com.facebook.imagepipeline.image.CloseableStaticBitmap;
import com.facebook.imagepipeline.image.ImageInfo;
import com.facebook.imagepipeline.request.ImageRequest;
import com.facebook.imagepipeline.request.ImageRequestBuilder;

/**
 * Desction:fresco image loader
 * Author:pengjianbo
 * Date:15/12/24 ?9:34
 */
public class FrescoImageLoader {

    private Context context;

    public FrescoImageLoader(Context context) {
        this(context, Bitmap.Config.RGB_565);
    }

    public FrescoImageLoader(Context context, Bitmap.Config config) {
        this.context = context;
        ImagePipelineConfig imagePipelineConfig = ImagePipelineConfig.newBuilder(context).setBitmapsConfig(config)
                .build();
        Fresco.initialize(context, imagePipelineConfig);
    }

    public void displayImage(Context context, String path, GFImageView imageView, int width, int height) {
        Resources resources = context.getResources();
        Drawable defaultDrawable = ContextCompat.getDrawable(context, R.drawable.common_crop_image_placeholder);
        //        imageView.setImageDrawable(defaultDrawable);
        imageView.setImageDrawable(null);
        GenericDraweeHierarchy hierarchy = new GenericDraweeHierarchyBuilder(resources).setFadeDuration(300)
                .setPlaceholderImage(defaultDrawable).setFailureImage(defaultDrawable)
                .setProgressBarImage(new ProgressBarDrawable()).build();
        final DraweeHolder<GenericDraweeHierarchy> draweeHolder = DraweeHolder.create(hierarchy, context);
        imageView.setOnImageViewListener(new GFImageView.OnImageViewListener() {
            @Override
            public void onDetach() {
                draweeHolder.onDetach();
            }

            @Override
            public void onAttach() {
                draweeHolder.onAttach();
            }

            @Override
            public boolean verifyDrawable(Drawable dr) {
                if (dr == draweeHolder.getHierarchy().getTopLevelDrawable()) {
                    return true;
                }
                return false;
            }
        });
        Uri uri = new Uri.Builder().scheme(UriUtil.LOCAL_FILE_SCHEME).path(path).build();
        displayImage(uri, new ResizeOptions(width, height), imageView, draweeHolder);
    }

    /**
     * 
     *
     * @param url
     * @param imageSize
     */
    private void displayImage(Uri url, ResizeOptions imageSize, final ImageView imageView,
            final DraweeHolder<GenericDraweeHierarchy> draweeHolder) {
        ImageRequest imageRequest = ImageRequestBuilder.newBuilderWithSource(url).setResizeOptions(imageSize)//?
                .build();
        ImagePipeline imagePipeline = Fresco.getImagePipeline();

        final DataSource<CloseableReference<CloseableImage>> dataSource = imagePipeline
                .fetchDecodedImage(imageRequest, this);
        DraweeController controller = Fresco.newDraweeControllerBuilder()
                .setOldController(draweeHolder.getController()).setImageRequest(imageRequest)
                .setControllerListener(new BaseControllerListener<ImageInfo>() {
                    @Override
                    public void onFinalImageSet(String s, ImageInfo imageInfo, Animatable animatable) {
                        CloseableReference<CloseableImage> imageReference = null;
                        try {
                            imageReference = dataSource.getResult();
                            if (imageReference != null) {
                                CloseableImage image = imageReference.get();
                                if (image != null && image instanceof CloseableStaticBitmap) {
                                    CloseableStaticBitmap closeableStaticBitmap = (CloseableStaticBitmap) image;
                                    Bitmap bitmap = closeableStaticBitmap.getUnderlyingBitmap();
                                    if (bitmap != null && imageView != null) {
                                        imageView.setImageBitmap(bitmap);
                                    }
                                }
                            }
                        } finally {
                            dataSource.close();
                            CloseableReference.closeSafely(imageReference);
                        }
                    }
                }).setTapToRetryEnabled(true).build();
        draweeHolder.setController(controller);
    }

    public void clearMemoryCache() {

    }
}