修改图片详情页面的实现方式,适配大图/长图

app/src/main/java/com/gh/gamecenter/ViewImageActivity.java

@@ -1,11 +1,12 @@
 package com.gh.gamecenter;
 
+import android.annotation.SuppressLint;
 import android.app.Activity;
 import android.app.Dialog;
 import android.content.Context;
 import android.content.Intent;
 import android.content.res.Configuration;
-import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
 import android.graphics.Color;
 import android.net.Uri;
 import android.os.Bundle;
@@ -18,40 +19,39 @@ import android.widget.LinearLayout;
 import android.widget.RelativeLayout;
 import android.widget.TextView;
 
-import com.facebook.binaryresource.BinaryResource;
-import com.facebook.cache.common.CacheKey;
-import com.facebook.common.executors.CallerThreadExecutor;
-import com.facebook.common.references.CloseableReference;
-import com.facebook.datasource.DataSource;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.core.content.ContextCompat;
+import androidx.viewpager.widget.PagerAdapter;
+import androidx.viewpager.widget.ViewPager.OnPageChangeListener;
+
+import com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView;
 import com.facebook.drawee.backends.pipeline.Fresco;
-import com.facebook.drawee.interfaces.DraweeController;
 import com.facebook.imagepipeline.core.ImagePipeline;
-import com.facebook.imagepipeline.datasource.BaseBitmapDataSubscriber;
-import com.facebook.imagepipeline.image.CloseableImage;
 import com.facebook.imagepipeline.request.ImageRequest;
-import com.facebook.imagepipeline.request.ImageRequestBuilder;
 import com.gh.base.BaseActivity;
 import com.gh.common.Base64ImageHolder;
 import com.gh.common.util.DisplayUtils;
 import com.gh.common.util.EntranceUtils;
 import com.gh.common.util.ImageUtils;
 import com.gh.common.util.MD5Utils;
-import com.gh.common.util.MessageShareUtils;
 import com.gh.common.util.NetworkUtils;
 import com.gh.common.util.PermissionHelper;
-import com.gh.common.view.EmptyDrawable;
+import com.gh.common.util.SimpleImageLoader;
 import com.gh.common.view.Gh_RelativeLayout;
 import com.gh.common.view.Gh_RelativeLayout.OnSingleTapListener;
 import com.gh.common.view.Gh_ViewPager;
-import com.gh.common.view.ZoomSimpleDraweeView;
 import com.gh.gamecenter.entity.ImageInfoEntity;
 import com.gh.gamecenter.retrofit.Response;
 import com.gh.gamecenter.retrofit.RetrofitManager;
+import com.github.piasy.biv.view.BigImageView;
+import com.github.piasy.biv.view.FrescoImageViewFactory;
 import com.lightgame.utils.Utils;
 
 import java.io.File;
+import java.io.FileInputStream;
 import java.io.FileOutputStream;
-import java.io.IOException;
+import java.io.InputStream;
 import java.io.OutputStream;
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -59,11 +59,6 @@ import java.util.HashSet;
 import java.util.Locale;
 import java.util.Map;
 
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.core.content.ContextCompat;
-import androidx.viewpager.widget.PagerAdapter;
-import androidx.viewpager.widget.ViewPager.OnPageChangeListener;
 import butterknife.BindView;
 import io.reactivex.android.schedulers.AndroidSchedulers;
 import io.reactivex.schedulers.Schedulers;
@@ -90,14 +85,13 @@ public class ViewImageActivity extends BaseActivity implements OnPageChangeListe
     private ViewImageAdapter adapter;
 
     private ImagePipeline mImagePipeline;
-    
+
     private boolean mShowBase64Image = false;
 
     private static final String KEY_BASE64 = "base64";
-    
+
     private static final String KEY_URLS = "urls";
     private static final String KEY_CURRENT = "current";
-    private static final String KEY_SCALETYPE = "ScaleType";
 
     private ArrayList<String> urls;
     private HashSet<Integer> mViewedSet; // 让调用者知道该图片是否被看过了
@@ -106,7 +100,7 @@ public class ViewImageActivity extends BaseActivity implements OnPageChangeListe
     private int mLimitWidth;
 
     private boolean isOrientation;
-    
+
     public static Intent getBase64ViewImageIntent(Context context, boolean showSingleBase64Image) {
         Intent checkIntent = new Intent(context, ViewImageActivity.class);
         checkIntent.putExtra(KEY_BASE64, showSingleBase64Image);
@@ -131,7 +125,6 @@ public class ViewImageActivity extends BaseActivity implements OnPageChangeListe
         super.onCreate(savedInstanceState);
         mViewedSet = new HashSet<>();
         mImageInfoMap = new HashMap<>();
-
         // init data
         int current = 0;
         Bundle extras = getIntent().getExtras();
@@ -183,31 +176,29 @@ public class ViewImageActivity extends BaseActivity implements OnPageChangeListe
             if (object != null) {
                 mProgressHint.setWidth(mProgressHint.getWidth());
                 RelativeLayout view = (RelativeLayout) object;
-                final ZoomSimpleDraweeView draweeView = view.findViewById(R.id.viewimage_iv_show);
-                draweeView.getHierarchy().setProgressBarImage(new EmptyDrawable(progress -> {
-                    if (position == mViewPager.getCurrentItem()) { // 防止下载过程中切换图片
-                        int percent = progress / 100;
-                        if (percent < 100) {
-                            mProgressHint.setText((percent + "%"));
-                        } else {
-                            mProgressHint.setText("已完成");
-                            mBaseHandler.postDelayed(() -> {
-                                if (position == mViewPager.getCurrentItem()) {  // 防止等待过程中切换图片
-                                    mProgressHint.setVisibility(View.GONE);
-                                }
-                            }, 500);
+                final BigImageView imageView = view.findViewById(R.id.viewimage_iv_show);
+                String url = urls.get(position);
+                imageView.showImage(Uri.parse(url));
+                imageView.setImageLoaderCallback(new SimpleImageLoader() {
+                    @Override
+                    public void onProgress(int progress) {
+                        if (position == mViewPager.getCurrentItem()) { // 防止下载过程中切换图片
+                            if (progress < 100) {
+                                mProgressHint.setText((progress + "%"));
+                            } else {
+                                mProgressHint.setText("已完成");
+                                mBaseHandler.postDelayed(() -> {
+                                    if (position == mViewPager.getCurrentItem()) {  // 防止等待过程中切换图片
+                                        mProgressHint.setVisibility(View.GONE);
+                                    }
+                                }, 500);
+                            }
                         }
                     }
-                }));
-                draweeView.setController(Fresco.newDraweeControllerBuilder()
-                        // 高清图片
-                        .setImageRequest(ImageRequest.fromUri(urls.get(position)))
-                        // 低分辨率图片
-                        .setLowResImageRequest(ImageRequest.fromUri(ImageUtils.addLimitWidth(urls.get(position), mLimitWidth)))
-                        .build());
+                });
             }
         });
-        
+
         DisplayUtils.transparentStatusAndNavigation(this);
     }
 
@@ -263,8 +254,10 @@ public class ViewImageActivity extends BaseActivity implements OnPageChangeListe
                     return;
                 }
 
-                ZoomSimpleDraweeView zoomDraweeView = ghRelativeLayout.findViewById(R.id.viewimage_iv_show);
-                zoomDraweeView.reset(); // 重置矩阵，还原图片
+                BigImageView imageView = ghRelativeLayout.findViewById(R.id.viewimage_iv_show);
+                SubsamplingScaleImageView ssiv = imageView.getSSIV();
+                if (ssiv != null) ssiv.resetScaleAndCenter();
+
             }
         }
         mIndicatorTv.setText(String.format("%d/%d", position + 1, urls.size()));
@@ -295,16 +288,10 @@ public class ViewImageActivity extends BaseActivity implements OnPageChangeListe
                 });
     }
 
-    private void loadImage(String url, final ZoomSimpleDraweeView imageView) {
-        if (url.contains(".gif")) {
-            DraweeController controller = Fresco.newDraweeControllerBuilder()
-                    .setUri(url)
-                    .setAutoPlayAnimations(true)
-                    .build();
-            imageView.setController(controller);
-        } else {
-            imageView.setImageURI(url); // 加载原图
-        }
+    private void loadImage(String url, final BigImageView imageView) {
+        // 添加GIF支持
+        imageView.setImageViewFactory(new FrescoImageViewFactory());
+        imageView.showImage(Uri.parse(url));
     }
 
     private class ViewImageAdapter extends PagerAdapter implements OnSingleTapListener {
@@ -317,6 +304,7 @@ public class ViewImageActivity extends BaseActivity implements OnPageChangeListe
             return urls.size();
         }
 
+        @SuppressLint("MissingPermission")
         @NonNull
         @Override
         public Object instantiateItem(@NonNull ViewGroup container, int position) {
@@ -324,28 +312,45 @@ public class ViewImageActivity extends BaseActivity implements OnPageChangeListe
             ImageRequest imageRequest = ImageRequest.fromUri(url);
             boolean isInMemoryCache = mImagePipeline.isInBitmapMemoryCache(imageRequest);
             boolean isInDiskCache = imageRequest != null && mImagePipeline.isInDiskCacheSync(imageRequest);
-    
-            Gh_RelativeLayout view = (Gh_RelativeLayout) View.inflate(container.getContext(), R.layout.viewimage_normal_item, null);
-            ZoomSimpleDraweeView imageView = view.findViewById(R.id.viewimage_iv_show);
 
-            if (isInMemoryCache
-                || isInDiskCache
-                || NetworkUtils.isWifiOr4GConnected(ViewImageActivity.this)
-                || url.contains(".gif")) {
-                loadImage(url, imageView);
-            } else {
-                ImageUtils.addLimitWidthAndLoad(imageView, url, mLimitWidth, imageInfo -> {
-                    if (imageInfo != null && mImageInfoMap.get(url) == null) {
-                        loadImageInfo(position, imageInfo.getWidth()); // 加载图片参数,目的是用户显示原文按钮
-                    }
-                });
+            Gh_RelativeLayout view = (Gh_RelativeLayout) View.inflate(container.getContext(), R.layout.viewimage_normal_item, null);
+            BigImageView imageView = view.findViewById(R.id.viewimage_iv_show);
+
+            if (!isInMemoryCache
+                    && !isInDiskCache
+                    && !NetworkUtils.isWifiOr4GConnected(ViewImageActivity.this)
+                    && !url.contains(".gif")) {
+                url = ImageUtils.getTransformLimitUrl(url, mLimitWidth, getApplicationContext());
             }
 
-            //单点退出
-            imageView.setOnSingleClickListener(ViewImageActivity.this::finish);
+            String finalUrl = url;
+            imageView.setImageLoaderCallback(new SimpleImageLoader() {
+                @Override
+                public void onSuccess(File image) {
+                    if (!finalUrl.equals(urls.get(position))) {
+                        BitmapFactory.Options options = new BitmapFactory.Options();
+                        options.inJustDecodeBounds = true;
+                        BitmapFactory.decodeFile(new File(image.getPath()).getAbsolutePath(), options);
+                        loadImageInfo(position, options.outWidth); // 加载图片参数,目的是用户显示原文按钮
+                    }
+                    SubsamplingScaleImageView ssiv = imageView.getSSIV();
+                    if (ssiv != null) {
+                        ssiv.setMaxScale(10f); // 这个缩放倍数最好很具宽高自动调节
+                        ssiv.setOnImageEventListener(new SubsamplingScaleImageView.DefaultOnImageEventListener() {
+                            @Override
+                            public void onReady() {
+                                ssiv.resetScaleAndCenter();
+                            }
+                        });
+                        ssiv.setOnClickListener(v -> finish());
+
+                    }
+                }
+            });
+            loadImage(url, imageView);
 
             //长按
-            imageView.setOnLongClickListener(() -> {
+            imageView.setOnLongClickListener(v -> {
                 final Dialog dialog = new Dialog(ViewImageActivity.this);
 
                 LinearLayout container1 = new LinearLayout(ViewImageActivity.this);
@@ -353,8 +358,11 @@ public class ViewImageActivity extends BaseActivity implements OnPageChangeListe
                 container1.setBackgroundColor(Color.WHITE);
 
                 final TextView reportTv = new TextView(ViewImageActivity.this);
-                reportTv.setPadding(DisplayUtils.dip2px(ViewImageActivity.this, 20), DisplayUtils.dip2px(ViewImageActivity.this, 12),
-                        0, DisplayUtils.dip2px(ViewImageActivity.this, 12));
+                reportTv.setPadding(
+                        DisplayUtils.dip2px(ViewImageActivity.this, 20),
+                        DisplayUtils.dip2px(ViewImageActivity.this, 12),
+                        0,
+                        DisplayUtils.dip2px(ViewImageActivity.this, 12));
                 reportTv.setText(R.string.save_pic);
                 reportTv.setTextSize(17);
                 reportTv.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.title));
@@ -371,13 +379,15 @@ public class ViewImageActivity extends BaseActivity implements OnPageChangeListe
                     dialog.show();
                 }
 
-                reportTv.setOnClickListener(v -> {
+                reportTv.setOnClickListener(v1 -> {
                     PermissionHelper.checkStoragePermissionBeforeAction(ViewImageActivity.this, () -> {
-                        findImageBM();
+                        saveImageToFile(imageView.getCurrentImageFile(), finalUrl);
                         dialog.cancel();
                     });
                     dialog.cancel();
                 });
+
+                return false;
             });
 
             view.setTag(position);
@@ -385,100 +395,51 @@ public class ViewImageActivity extends BaseActivity implements OnPageChangeListe
             return view;
         }
 
-        private void findImageBM() {
-            String url = urls.get(mViewPager.getCurrentItem());
-            String limitUrl = ImageUtils.addLimitWidth(urls.get(mViewPager.getCurrentItem()), mLimitWidth);
-            String targetUrl;
-
-            if (mImagePipeline.isInBitmapMemoryCache(ImageRequest.fromUri(url))) {
-                targetUrl = url;
-            } else if (mImagePipeline.isInBitmapMemoryCache(ImageRequest.fromUri(limitUrl))) {
-                targetUrl = limitUrl;
-            } else {
-                targetUrl = url;
-            }
-
-
-            ImageRequest imageRequest = ImageRequestBuilder
-                    .newBuilderWithSource(Uri.parse(targetUrl))
-                    .setProgressiveRenderingEnabled(true)
-                    .build();
-
-            DataSource<CloseableReference<CloseableImage>>
-                    dataSource = mImagePipeline.fetchDecodedImage(imageRequest, ViewImageActivity.this);
-            final String finalCurUrl = targetUrl;
-            dataSource.subscribe(new BaseBitmapDataSubscriber() {
-                @Override
-                protected void onNewResultImpl(Bitmap bitmap) {
-                    if (bitmap != null) { // gif bitmap is null
-                        saveImage(bitmap, finalCurUrl);
-                    } else {
-                        ImageRequest imageRequest = ImageRequest.fromUri(Uri.parse(finalCurUrl));
-                        CacheKey encodedCacheKey = mImagePipeline.getCacheKeyFactory().getEncodedCacheKey(imageRequest, null);
-                        BinaryResource resource = Fresco.getImagePipelineFactory().getMainFileCache().getResource(encodedCacheKey);
-                        try {
-                            String fileName = finalCurUrl.substring(finalCurUrl.lastIndexOf("/"));
-                            String savePath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/Pictures/ghzhushou/";
-
-                            File targetFile = new File(savePath, fileName);
-                            OutputStream outStream = new FileOutputStream(targetFile);
-                            outStream.write(resource.read());
-                            Utils.toast(ViewImageActivity.this, "图片已保存到/Pictures/ghzhushou/");
-                            MessageShareUtils.refreshImage(ViewImageActivity.this, targetFile);
-                        } catch (Exception e) {
-                            Utils.log("图片保存失败：" + e.toString());
-                            e.printStackTrace();
-                        }
-                    }
-                }
-
-                @Override
-                protected void onFailureImpl(DataSource<CloseableReference<CloseableImage>> dataSource) {
-
-                }
-            }, CallerThreadExecutor.getInstance());
-        }
-
-        private void saveImage(Bitmap bitmap, String curUrl) {
-            
-            String fileName = "";
-            
-            if (mShowBase64Image) {
-                fileName = MD5Utils.getUrlMD5(curUrl.substring(0, 50)) + ".png";
-            } else {
-                fileName = curUrl.substring(curUrl.lastIndexOf("/"));
-            }
-
-            String savePath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/Pictures/ghzhushou/";
-
+        private void saveImageToFile(File src, String curUrl) {
+            InputStream in = null;
+            OutputStream out = null;
             try {
+                String fileName;
+                if (mShowBase64Image) {
+                    fileName = MD5Utils.getUrlMD5(curUrl.substring(0, 50)) + ".png";
+                } else {
+                    fileName = curUrl.substring(curUrl.lastIndexOf("/"));
+                }
+                String savePath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/Pictures/ghzhushou/";
                 File file = new File(savePath);
                 if (!file.exists()) {
                     file.mkdirs();
                 }
 
-                File f = new File(savePath, fileName);
-                if (f.exists()) {
-                    f.delete();
+                File dst = new File(savePath, fileName);
+                if (dst.exists()) {
+                    dst.delete();
+                }
+
+                in = new FileInputStream(src);
+                out = new FileOutputStream(dst);
+                byte[] buf = new byte[1024];
+                int len;
+                while ((len = in.read(buf)) > 0) {
+                    out.write(buf, 0, len);
                 }
 
-                FileOutputStream out = new FileOutputStream(f);
-                bitmap.compress(Bitmap.CompressFormat.PNG, 90, out);
-                out.flush();
-                out.close();
-                Utils.log("图片保存成功");
                 Utils.toast(ViewImageActivity.this, "图片已保存到/Pictures/ghzhushou/");
-                MessageShareUtils.refreshImage(ViewImageActivity.this, f);
-            } catch (IOException e) {
+            } catch (Exception e) {
                 Utils.log("图片保存失败：" + e.toString());
-                e.printStackTrace();
+            } finally {
+                try {
+                    if (out != null) out.close();
+                    if (in != null) in.close();
+                } catch (Exception ignore) {
+                }
             }
         }
 
+
         @Override
         public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
             container.removeView((View) object);
-            object = null;
         }
 
         @Override