/
FrescoImageLoader.java
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/
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 cn.finalteam.galleryfinal.sample.loader;
import android.app.Activity;
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.widget.ImageView;
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.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;
import cn.finalteam.galleryfinal.widget.GFImageView;
/**
* Desction:fresco image loader
* Author:pengjianbo
* Date:15/12/24 下午9:34
*/
public class FrescoImageLoader implements cn.finalteam.galleryfinal.ImageLoader {
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);
}
@Override
public void displayImage(Activity activity, String path, GFImageView imageView, Drawable defaultDrawable, int width, int height) {
Resources resources = context.getResources();
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);
}
/**
* 加载远程图片
*
* @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)//图片目标大小
.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);
}
@Override
public void clearMemoryCache() {
}
}