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PiasyPiasy
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v1.0.0
1 parent 7096898 commit 892f2b9

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lines changed

‎.gitignore

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**.iml
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.idea
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.gradle
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/local.properties
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bintray.properties
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.DS_Store
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**/build
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/captures

‎FrescoBigImageViewer/.gitignore

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/build

‎FrescoBigImageViewer/build.gradle

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apply plugin: 'com.android.library'
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apply from: "https://raw.githubusercontent.com/Piasy/BintrayUploadScript/master/bintray.gradle"
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android {
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compileSdkVersion rootProject.ext.androidCompileSdkVersion
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buildToolsVersion rootProject.ext.androidBuildToolsVersion
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defaultConfig {
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minSdkVersion rootProject.ext.minSdkVersion
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targetSdkVersion rootProject.ext.targetSdkVersion
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versionCode rootProject.ext.releaseVersionCode
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versionName rootProject.ext.releaseVersionName
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}
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buildTypes {
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release {
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minifyEnabled false
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proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
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}
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}
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}
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dependencies {
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compile "com.android.support:support-annotations:$rootProject.ext.androidSupportSdkVersion"
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compile "com.facebook.fresco:fresco:$rootProject.ext.frescoVersion"
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compile "com.davemorrissey.labs:subsampling-scale-image-view:$rootProject.ext.ssivVersion"
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compile "commons-io:commons-io:$rootProject.ext.commonsVersion"
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}

‎FrescoBigImageViewer/proguard-rules.pro

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# Add project specific ProGuard rules here.
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# By default, the flags in this file are appended to flags specified
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# in /Users/piasy/tools/android-sdk/tools/proguard/proguard-android.txt
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# You can edit the include path and order by changing the proguardFiles
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# directive in build.gradle.
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#
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# For more details, see
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# http://developer.android.com/guide/developing/tools/proguard.html
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# Add any project specific keep options here:
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# If your project uses WebView with JS, uncomment the following
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# and specify the fully qualified class name to the JavaScript interface
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# class:
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#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
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# public *;
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#}

‎FrescoBigImageViewer/src/main/AndroidManifest.xml

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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.github.piasy.fresco.bigimageviewer">
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<uses-permission android:name="android.permission.INTERNET"/>
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</manifest>

‎FrescoBigImageViewer/src/main/java/com/github/piasy/fresco/bigimageviewer/BigImageView.java

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/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2016 Piasy
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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package com.github.piasy.fresco.bigimageviewer;
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import android.content.Context;
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import android.net.Uri;
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import android.support.annotation.UiThread;
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import android.support.annotation.WorkerThread;
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import android.util.AttributeSet;
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import android.util.Log;
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import android.view.ViewGroup;
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import android.widget.FrameLayout;
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import com.davemorrissey.labs.subscaleview.ImageSource;
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import com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView;
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import com.facebook.binaryresource.FileBinaryResource;
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import com.facebook.cache.common.CacheKey;
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import com.facebook.cache.disk.FileCache;
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import com.facebook.common.references.CloseableReference;
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import com.facebook.datasource.DataSource;
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import com.facebook.drawee.backends.pipeline.Fresco;
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import com.facebook.imagepipeline.cache.DefaultCacheKeyFactory;
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import com.facebook.imagepipeline.core.DefaultExecutorSupplier;
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import com.facebook.imagepipeline.core.ImagePipeline;
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import com.facebook.imagepipeline.core.ImagePipelineFactory;
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import com.facebook.imagepipeline.memory.PooledByteBuffer;
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import com.facebook.imagepipeline.request.ImageRequest;
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import java.io.File;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* Created by Piasy{github.com/Piasy} on 06/11/2016.
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*/
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public class BigImageView extends FrameLayout {
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private final SubsamplingScaleImageView mImageView;
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private final DefaultExecutorSupplier mExecutorSupplier;
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private final List<DataSource<CloseableReference<PooledByteBuffer>>> mDownloadingImages;
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private final List<File> mTempImages;
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public BigImageView(Context context) {
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this(context, null);
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}
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public BigImageView(Context context, AttributeSet attrs) {
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this(context, attrs, 0);
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}
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public BigImageView(Context context, AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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mImageView = new SubsamplingScaleImageView(context, attrs);
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addView(mImageView);
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LayoutParams params = new LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
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ViewGroup.LayoutParams.MATCH_PARENT);
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mImageView.setLayoutParams(params);
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mImageView.setMinimumTileDpi(160);
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mExecutorSupplier = new DefaultExecutorSupplier(Runtime.getRuntime().availableProcessors());
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mDownloadingImages = new ArrayList<>();
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mTempImages = new ArrayList<>();
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}
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@Override
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protected void onDetachedFromWindow() {
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super.onDetachedFromWindow();
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for (int i = 0, size = mDownloadingImages.size(); i < size; i++) {
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mDownloadingImages.get(i).close();
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}
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mDownloadingImages.clear();
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for (int i = 0, size = mTempImages.size(); i < size; i++) {
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mTempImages.get(i).delete();
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}
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mTempImages.clear();
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}
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public void showImage(Uri uri) {
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Log.d("FrescoBigImageViewer", "showImage " + uri);
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ImageRequest request = ImageRequest.fromUri(uri);
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File localCache = getCacheFile(request);
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if (localCache.exists()) {
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showCachedImage(localCache);
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} else {
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ImagePipeline pipeline = Fresco.getImagePipeline();
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DataSource<CloseableReference<PooledByteBuffer>> source =
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pipeline.fetchEncodedImage(request, true);
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mDownloadingImages.add(source);
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source.subscribe(new ImageDownloadSubscriber(getContext()) {
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@Override
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protected void onSuccess(File image) {
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mTempImages.add(image);
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showDownloadedImage(image);
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}
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@Override
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protected void onFail(Throwable t) {
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t.printStackTrace();
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}
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}, mExecutorSupplier.forBackgroundTasks());
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}
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}
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private File getCacheFile(final ImageRequest request) {
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FileCache mainFileCache = ImagePipelineFactory
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.getInstance()
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.getMainFileCache();
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final CacheKey cacheKey = DefaultCacheKeyFactory
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.getInstance()
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.getEncodedCacheKey(request, false); // we don't need context, but avoid null
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File cacheFile = request.getSourceFile();
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if (mainFileCache.hasKey(cacheKey)) {
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cacheFile = ((FileBinaryResource) mainFileCache.getResource(cacheKey)).getFile();
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}
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return cacheFile;
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}
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@WorkerThread
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private void showDownloadedImage(final File image) {
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Log.d("FrescoBigImageViewer", "showDownloadedImage " + image);
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post(new Runnable() {
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@Override
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public void run() {
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doShowImage(image);
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}
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});
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}
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@UiThread
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private void showCachedImage(File image) {
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Log.d("FrescoBigImageViewer", "showCachedImage " + image);
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doShowImage(image);
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}
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@UiThread
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private void doShowImage(File image) {
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mImageView.setImage(ImageSource.uri(Uri.fromFile(image)));
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}
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}

‎FrescoBigImageViewer/src/main/java/com/github/piasy/fresco/bigimageviewer/FrescoBigImageViewer.java

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package com.github.piasy.fresco.bigimageviewer;
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import android.content.Context;
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import android.net.Uri;
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import android.support.annotation.Nullable;
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import com.facebook.drawee.backends.pipeline.DraweeConfig;
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import com.facebook.drawee.backends.pipeline.Fresco;
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import com.facebook.imagepipeline.core.ImagePipeline;
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import com.facebook.imagepipeline.core.ImagePipelineConfig;
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import com.facebook.imagepipeline.request.ImageRequest;
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/**
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* Created by Piasy{github.com/Piasy} on 06/11/2016.
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*/
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public final class FrescoBigImageViewer {
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private FrescoBigImageViewer() {
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// no instance
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}
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public static void initialize(Context context) {
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initialize(context, null, null);
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}
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public static void initialize(Context context,
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@Nullable ImagePipelineConfig imagePipelineConfig) {
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initialize(context, imagePipelineConfig, null);
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}
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public static void initialize(Context context,
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@Nullable ImagePipelineConfig imagePipelineConfig,
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@Nullable DraweeConfig draweeConfig) {
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Fresco.initialize(context, imagePipelineConfig, draweeConfig);
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}
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public static void prefetch(Uri... uris) {
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if (uris == null) {
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return;
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}
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ImagePipeline pipeline = Fresco.getImagePipeline();
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for (Uri uri : uris) {
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pipeline.prefetchToDiskCache(ImageRequest.fromUri(uri),
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false); // we don't need context, but avoid null
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}
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}
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}

‎FrescoBigImageViewer/src/main/java/com/github/piasy/fresco/bigimageviewer/ImageDownloadSubscriber.java

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/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2016 Piasy
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10+
* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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package com.github.piasy.fresco.bigimageviewer;
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import android.content.Context;
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import android.support.annotation.WorkerThread;
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import com.facebook.common.references.CloseableReference;
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import com.facebook.datasource.BaseDataSubscriber;
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import com.facebook.datasource.DataSource;
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import com.facebook.imagepipeline.memory.PooledByteBuffer;
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import com.facebook.imagepipeline.memory.PooledByteBufferInputStream;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import org.apache.commons.io.IOUtils;
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/**
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* Created by Piasy{github.com/Piasy} on 06/11/2016.
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*/
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public abstract class ImageDownloadSubscriber
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extends BaseDataSubscriber<CloseableReference<PooledByteBuffer>> {
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private final File mTempFile;
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public ImageDownloadSubscriber(Context context) {
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mTempFile = new File(context.getCacheDir(), "" + System.currentTimeMillis() + ".png");
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}
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@Override
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protected void onNewResultImpl(DataSource<CloseableReference<PooledByteBuffer>> dataSource) {
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if (!dataSource.isFinished() || dataSource.getResult() == null) {
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return;
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}
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PooledByteBufferInputStream inputStream = null;
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FileOutputStream outputStream = null;
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try {
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inputStream = new PooledByteBufferInputStream(dataSource.getResult().get());
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outputStream = new FileOutputStream(mTempFile);
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IOUtils.copy(inputStream, outputStream);
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onSuccess(mTempFile);
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} catch (IOException e) {
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onFail(e);
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} finally {
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IOUtils.closeQuietly(inputStream);
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IOUtils.closeQuietly(outputStream);
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}
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}
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@Override
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protected void onFailureImpl(DataSource<CloseableReference<PooledByteBuffer>> dataSource) {
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onFail(new RuntimeException("onFailureImpl"));
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}
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@WorkerThread
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protected abstract void onSuccess(File image);
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@WorkerThread
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protected abstract void onFail(Throwable t);
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}

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