iielse/imageviewer

A simple and customizable Android full-screen image viewer 一个简单且可自定义的Android全屏图像浏览器

imageviewer's Issues

隐藏了后内存还是占用着,怎么释放

MessagePicturesLayout图片可能不显示的问题

MessagePicturesLayout显示图片的时候，第一次能出现图片，第二次以后基本绘制不出图片。

点击图片回调的信息错误

点击第一张图和点击第二张图回调的信息都是第一张图的信息，并且位置也是显示的0.

9宫格 gif

9宫格里面图片展示,是不支持gif嘛?,为什么我放入了一个gif,显示错乱

图片下拉退出有时候回不灵

不支持gif图查看

因为写死了ImageView，所以不支持gif图查看。

这一行会有空指针异常

第二个项目，列表里面下拉刷新有时候图片会不显示

列表里面下拉刷新有时候图片会不显示，在不同机型上刷新有的会不显示，有的会显示三张比较高的图（非正方形）

双击功能无效了/doge

java.lang.IllegalArgumentException: error params initPosition -1

在ViewPager中点击图片发生错误

P02 show的API设计的不是很好

public void show(ImageView i, List<ImageView> imageGroupList, final List<Uri> urlList) {

之前设计的是 第二个imageGroupList和第三个参数urlList是对应关系，且顺序也需要对应，且点击触发show的imageView必须是 imageGroupList中的元素
限制太多

public void show(ImageView i, SparseArray<ImageView> imageGroupList, final List<Uri> urlList) {

思考后发现，把第二个入参改成了 SparseArray类型，imageGroupList的key(position) 映射 urlList中的url地址要灵活很多， 点击触发show的imageView依旧需要在imageGroupList中，来确认初始位置。 这样设计更适合聊天界面来查看图片列表。

要改变的地方 3处

/**
     * @param i              被点击的ImageView
     * @param imageGroupList
     * @param urlList        被加载的图片url列表，数量必须大于等于 imageGroupList.size。 且顺序应当和imageGroupList保持一致
     */
    public void show(ImageView i, SparseArray<ImageView> imageGroupList, final List<Uri> urlList) {
        if (i == null || imageGroupList == null || urlList == null || imageGroupList.size() < 1 ||
                urlList.size() < imageGroupList.size()) {
            String info = "i[" + i + "]";
            info += "#imageGroupList " + (imageGroupList == null ? "null" : "size : " + imageGroupList.size());
            info += "#urlList " + (urlList == null ? "null" : "size :" + urlList.size());
            throw new IllegalArgumentException("error params \n" + info);
        }

        initPosition = -1;
        for (int x = 0; x < imageGroupList.size(); x++) {
            if (imageGroupList.get(imageGroupList.keyAt(x)) == i) {
                initPosition = imageGroupList.keyAt(x);
                break;
            }
        }
        if (initPosition < 0) {
            throw new IllegalArgumentException("param ImageView i must be a member of the List <ImageView> imageGroupList!");
        }

        ...
    }

private boolean setDefaultDisplayConfigs(final ImageView imageView, final int pos, boolean hasPlayBeginAnimation) {
            boolean isFindEnterImagePicture = false;

            ViewState.write(imageView, ViewState.STATE_ORIGIN).alpha(0).scaleXBy(1.5f).scaleYBy(1.5f);
            if (mImageGroupList.get(pos) != null) {  // 这里
                ImageView originRef = mImageGroupList.get(pos);
                if (pos == initPosition && !hasPlayBeginAnimation) {

 @Override
    public void onPageSelected(int position) {
        iSource = adapter.mImageSparseArray.get(position);
        if (iOrigin != null) {
            iOrigin.setVisibility(View.VISIBLE);
        }
        if (mImageGroupList.get(position) != null) { // 这里
            iOrigin = mImageGroupList.get(position);
            if (iOrigin.getDrawable() != null) iOrigin.setVisibility(View.INVISIBLE);
        }

调用

conversationAdapter1 = ConversationAdapter1().apply {
                cb = object : ConversationAdapter1.Callback {
                    override fun onPictureClick(view: ImageView, uri: Uri, uriList: List<Uri>, position: Int) {
                        // view 被点击的imageView
                        // uri 被点击的imageView对应展示的图片地址信息
                        // uriList 一整个要展示的图片列表
                       
                        vImageWatcher.show(view, SparseArray<ImageView>().apply {
                            put(uriList.indexOf(uri), view)
                        }, uriList)
                    }
                }
            }

效果

你俩谁才是正版

https://github.com/byc4426/ImageWatcher

第一个图片总是两边显示不全

不知道为什么，第一个图片，两边总是显示不全，被遮住了。缩小也不行。搞了了好久，浪费了3个多小时，唉换框架！

由于我的版本不支持25.3.1,点击放图片永远是转圈圈

我自己将 Glide.with(context).load(url).asBitmap().into(new Target() {改成了这种方式，就这一点不同，同时说明一下，我支持的24.0.0不知道是不是这样远远导致的

如果不用Glide,用Fresco呢

有个问题是fresco我们用的是自定义的imageview集成自SimpleDraweeView，不像glide可以直接load到imageview

MessagePicturesLayout set(List<String> urlThumbList, List<String> urlList) 方法

如果不设置值
eg: demo中注释// lPictures.set(mData.getPictureThumbList(), mData.getPictureList());

 Process: ch.ielse.demo.p02, PID: 378
                                                               java.lang.IllegalArgumentException: dataList.size != thumbDataList.size
                                                                   at ch.ielse.demo.p02.MessagePicturesLayout.notifyDataChanged(MessagePicturesLayout.java:76)
                                                                   at ch.ielse.demo.p02.MessagePicturesLayout.onSizeChanged(MessagePicturesLayout.java:146)
                                                                   at android.view.View.sizeChange(View.java:17638)
                                                                   at android.view.View.setFrame(View.java:17600)
                                                                   at android.view.View.layout(View.java:17517)
                                                                   at android.view.ViewGroup.layout(ViewGroup.java:5612)
                                                                   at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1079)
                                                                   at android.view.View.layout(View.java:17520)
                                                                   at android.view.ViewGroup.layout(ViewGroup.java:5612)
                                                                   at android.support.v7.widget.RecyclerView$LayoutManager.layoutDecoratedWithMargins(RecyclerView.java:8659)
                                                                   at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1583)
                                                                   at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1488)
                                                                   at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:585)
                                                                   at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3506)
                                                                   at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:3254)
                                                                   at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:3767)
                                                                   at android.view.View.layout(View.java:17520)
                                                                   at android.view.ViewGroup.layout(ViewGroup.java:5612)
                                                                   at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1741)
                                                                   at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1585)
                                                                   at android.widget.LinearLayout.onLayout(LinearLayout.java:1494)
                                                                   at android.view.View.layout(View.java:17520)
                                                                   at android.view.ViewGroup.layout(ViewGroup.java:5612)
                                                                   at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
                                                                   at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
                                                                   at android.view.View.layout(View.java:17520)
                                                                   at android.view.ViewGroup.layout(ViewGroup.java:5612)
                                                                   at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
                                                                   at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
                                                                   at android.view.View.layout(View.java:17520)
                                                                   at android.view.ViewGroup.layout(ViewGroup.java:5612)
                                                                   at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1741)
                                                                   at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1585)
                                                                   at android.widget.LinearLayout.onLayout(LinearLayout.java:1494)
                                                                   at android.view.View.layout(View.java:17520)
                                                                   at android.view.ViewGroup.layout(ViewGroup.java:5612)
                                                                   at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
                                                                   at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
                                                                   at com.android.internal.policy.DecorView.onLayout(DecorView.java:724)
                                                                   at android.view.View.layout(View.java:17520)
                                                                   at android.view.ViewGroup.layout(ViewGroup.java:5612)
                                                                   at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2342)
                                                                   at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2069)
                                                                   at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1246)
                                                                   at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6301)
                                                                   at android.view.Choreographer$CallbackRecord.run(Choreographer.java:871)
                                                                   at android.view.Choreographer.doCallbacks(Choreographer.java:683)
                                                                   at android.view.Choreographer.doFrame(Choreographer.java:619)
                                                                   at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:857)
                                                                   at android.os.Handler.handleCallback(Handler.java:751)
                                                                   at android.os.Handler.dispatchMessage(Handler.java:95)
                                                                   at android.os.Looper.loop(Looper.java:154)
                                                                   at android.app.ActivityThread.main(ActivityThread.java:6077)
                                                                   at java.lang.reflect.Method.invoke(Native Method)
                                                                   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
                                                                   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)

E神威武

猜猜我是谁

图片放大效果体验不佳

P02，点击小图进入大图后，两指不断扩张放大图片，然后单指滑动图片到屏幕边缘，这时候继续放大图片，图片的位置会自动回到屏幕中心。

额，好像有人抄袭你的

https://github.com/byc4426/ImageWatcher

支持WebView中的图片吗

你好，请问WebView中的图片能否实现类似的效果吗

第二个例子中，预览图片，同时点击多个图片，有一张图片消失

P02，”唐僧还是厉害啊，为什么。。“那条下的图片，有bug

没有按照预期的方式显示，点击之后仅仅按列表里的大小显示，并且位置水平靠左垂直居中的。
效果图如下：
http://upload-images.jianshu.io/upload_images/2018741-f22add5f1676a879.jpg?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240

自定义 IndexProvider 中 点击事件不触发

` new ImageWatcher.IndexProvider() {
private View view;

                @Override
                public View initialView(Context context) {
                    FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT,
                            MyUtils.dip2px(context, 40));//
                    lp.gravity = Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL;
                    view = LayoutInflater.from(context).inflate(R.layout.image_index, null);
                    view.setLayoutParams(lp);
                    return view;
                }

                @Override
                public void onPageChanged(final ImageWatcher imageWatcher, int position, List<Uri> list) {
                    TextView textIndex = view.findViewById(R.id.tv_index);
                    TextView tvShare = view.findViewById(R.id.tv_share);
                    textIndex.setText(String.format("%s/%s", position + 1, list.size()));
                    tvShare.setOnClickListener(new View.OnClickListener() {
                        @Override
                        public void onClick(View v) {
                            ToastUtils.show("分享");
                        }
                    };`

我的项目中使用 glide 的版本是 4.0 的,引入该框架的时候冲突了

您好,我在项目使用了 glide , 它的版本是 4.0 的, 如果我想使用您这个框架,我该怎么做?

横向超长图片双击无法看清楚的问题

横向超长图片双击无法看清楚的问题
比如：http://image.xcar.com.cn/attachments/a/day_20141126/2014112609_68d9843ed0c3e1d05735CObUWVqIy3rr.jpg
这个长图，双击根本看不清楚
修复代码：
ImageWatcher.java->handleDoubleTapTouchResult()

if (vsCurrent.scaleY <= vsDefault.scaleY && vsCurrent.scaleX <= vsDefault.scaleX) {

        final String imageOrientation = (String) iSource.getTag(R.id.image_orientation);
        float expectedScale = (MAX_SCALE - vsDefault.scaleX) * 0.4f + vsDefault.scaleX;
        if (imageOrientation.equals("horizontal")) {
            ViewState viewState = ViewState.read(iSource, ViewState.STATE_DEFAULT);
            //图片在双击的时候放大的倍数，如果图片过长看不放大根本看不见
            final float scale = viewState.width / viewState.height;
            float maxScale = MAX_SCALE;
            if (scale > 2.0f) {
                maxScale = MAX_SCALE * scale / 2;
            }
            expectedScale = (maxScale - vsDefault.scaleX) * 0.4f + vsDefault.scaleX;
        }

        animSourceViewStateTransform(iSource, ViewState.write(iSource, ViewState.STATE_TEMP).scaleX(expectedScale).scaleY(expectedScale));
    } else {
        animSourceViewStateTransform(iSource, vsDefault);
    }

希望可以请求合并

iwHelper.show((ImageView) view, mappingViews, pictureList);第一个参数的问题

iwHelper.show((ImageView) view, mappingViews, pictureList); 第一参数如果是android.support.v7.widget.AppCompatImageView 的话， 调用不起来。 换成android.widget.ImageView的就可以。

有的时候图片不显示

显示出来的时候onSizeChanged方法走两次，不显示的时候走一次

很好很强大

很好很强大

本地图片不能放大和拖拽

请问在fragment点击返回键如何退出图片

WebView中点击某个图片，不适用，请问show方法里面的imageview参数可以不用加？

此处打开图片浏览器，消失不需要回到指定imageview处，请问怎么处理呢

长图放大以后不能流畅的滑动哦

如果能支持视频就更好了

如果能支持视频预览就更好了

图片放大后，在缩小效果不是很流畅

不带imageview参数的show()指定position,图片加载异常，左右滑动会显示图片，通常第1、2张不现实

e神，发现个问题.在4.4的机器上，比如说夜神模拟器，获取的content解析不了

e神，发现个问题.在4.4的机器上，比如说夜神模拟器，获取的content解析不了

图片很大的时候无法显示

W/OpenGLRenderer: Bitmap too large to be uploaded into a texture (6000x4000, max=4096x4096)

相册图片貌似不支持唉

相册图片显示特别小

.setIndexProvider(new DotIndexProvider())不显示,哪些情况下会不显示?

P01 open failed: ENOENT (No such file or directory)

华为系统相册返回Uri不能直接使用 uri.getPath 。不然使用BitmapFactory.decodeFile会返回空

解析方案参考 https://github.com/Yalantis/uCrop 源码

private static Bitmap obtainBmpSource(@NonNull Context context, @NonNull Uri uri, int requiredWidth, int requiredHeight) throws Exception {
        final ParcelFileDescriptor parcelFileDescriptor = context.getContentResolver().openFileDescriptor(uri, "r");
        final FileDescriptor fileDescriptor = parcelFileDescriptor.getFileDescriptor();
        final BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds = true;
        BitmapFactory.decodeFileDescriptor(fileDescriptor, null, options);
        options.inSampleSize = calculateInSampleSize(options, requiredWidth, requiredHeight);
        options.inJustDecodeBounds = false;

        Bitmap decodeSampledBitmap = null;

        boolean success = false;
        while (!success) {
            try {
                decodeSampledBitmap = BitmapFactory.decodeFileDescriptor(fileDescriptor, null, options);
                success = true;
            } catch (OutOfMemoryError error) {
                Log.e("ImageCropper", "decodeSampledBitmap: BitmapFactory.decodeFileDescriptor: ", error);
                options.inSampleSize++;
            }
        }

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
            close(parcelFileDescriptor);
        }

        int exifOrientation = getExifOrientation(context, uri);
        int exifDegrees = exifToDegrees(exifOrientation);
        int exifTranslation = exifToTranslation(exifOrientation);

        Matrix matrix = new Matrix();
        if (exifDegrees != 0) {
            matrix.preRotate(exifDegrees);
        }
        if (exifTranslation != 1) {
            matrix.postScale(exifTranslation, 1);
        }
        if (!matrix.isIdentity()) {
            decodeSampledBitmap = transformBitmap(decodeSampledBitmap, matrix);
        }
        return decodeSampledBitmap;
    }

修改核心代码
RxImagePickerFragment
替换方法入参
private void onQueryOrTakeSuccess(@NonNull String type, @NonNull List<String> pictures) {
↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓
private void onQueryOrTakeSuccess(@NonNull String type, @NonNull List<Uri> pictures) {

如果你是抄的，就抄的过分了

https://github.com/byc4426/ImageWatcher

手势中可能出现空指针

感觉有些时候没有加载出来 划着划着就显示出来了 划着划着又不显示了。

九宫格布局 界面

p01_ImageCropprer运行崩溃

您的debug-apk运行崩溃，重新编译也崩溃。
1.单选图片确定后崩溃
java.lang.NullPointerException: Attempt to invoke virtual method 'int android.graphics.Bitmap.getWidth()' on a null object reference
at ch.ielse.view.imagecropper.ImageCropper.cropInternal(ImageCropper.java:101)
at ch.ielse.view.imagecropper.ImageCropper.access$000(ImageCropper.java:25)
at ch.ielse.view.imagecropper.ImageCropper$1.run(ImageCropper.java:139)
2.选择拍照后崩溃
io.reactivex.exceptions.OnErrorNotImplementedException: file:///storage/emulated/0/Android/data/ch.ielse.demo.p01/cache/rxPicker/TEMP1595091369.jpg exposed beyond app through ClipData.Item.getUri()
at io.reactivex.internal.functions.Functions$OnErrorMissingConsumer.accept(Functions.java:704)
at io.reactivex.internal.functions.Functions$OnErrorMissingConsumer.accept(Functions.java:701)
at io.reactivex.internal.observers.LambdaObserver.onError(LambdaObserver.java:74)
at io.reactivex.observers.SerializedObserver.onError(SerializedObserver.java:155)
at io.reactivex.internal.operators.observable.ObservableTakeUntil$TakeUntilObserver.onError(ObservableTakeUntil.java:73)
at io.reactivex.subjects.PublishSubject.subscribeActual(PublishSubject.java:95)
at io.reactivex.Observable.subscribe(Observable.java:10842)
at io.reactivex.internal.operators.observable.ObservableTakeUntil.subscribeActual(ObservableTakeUntil.java:41)
at io.reactivex.Observable.subscribe(Observable.java:10842)
at io.reactivex.Observable.subscribe(Observable.java:10828)
at io.reactivex.Observable.subscribe(Observable.java:10731)
at ch.ielse.demo.p01.MainActivity.takeCamera(MainActivity.java:107)
at ch.ielse.demo.p01.MainActivity.access$000(MainActivity.java:26)
at ch.ielse.demo.p01.MainActivity$1$1.accept(MainActivity.java:78)
at ch.ielse.demo.p01.MainActivity$1$1.accept(MainActivity.java:75)
at io.reactivex.internal.observers.ConsumerSingleObserver.onSuccess(ConsumerSingleObserver.java:61)
at io.reactivex.internal.operators.single.SingleTakeUntil$TakeUntilMainObserver.onSuccess(SingleTakeUntil.java:92)
at io.reactivex.internal.operators.observable.ObservableAllSingle$AllObserver.onComplete(ObservableAllSingle.java:99)
at io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.drainLoop(ObservableFlatMap.java:367)
at io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.drain(ObservableFlatMap.java:323)
at io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.onComplete(ObservableFlatMap.java:300)
at io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.drainLoop(ObservableFlatMap.java:367)
at io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.drain(ObservableFlatMap.java:323)
at io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.onComplete(ObservableFlatMap.java:300)
at io.reactivex.internal.operators.observable.ObservableFromArray$FromArrayDisposable.run(ObservableFromArray.java:110)
at io.reactivex.internal.operators.observable.ObservableFromArray.subscribeActual(ObservableFromArray.java:36)
at io.reactivex.Observable.subscribe(Observable.java:10842)
at io.reactivex.internal.operators.observable.ObservableFlatMap.subscribeActual(ObservableFlatMap.java:55)
at io.reactivex.Observable.subscribe(Observable.java:10842)
at io.reactivex.internal.operators.observable.ObservableFlatMap.subscribeActual(ObservableFlatMap.java:55)
at io.reactivex.Observable.subscribe(Observable.java:10842)
at io.reactivex.internal.operators.observable.ObservableAllSingle.subscribeActual(ObservableAllSingle.java:34)
at io.reactivex.Single.subscribe(Single.java:2703)
at io.reactivex.internal.operators.single.SingleTakeUntil.subscribeActual(SingleTakeUntil.java:51)
at io.reactivex.Single.subscribe(Single.java:2703)
at io.reactivex.Single.subscribe(Single.java:2689)
at io.reactivex.Single.subscribe(Single.java:2660)
at ch.ielse.demo.p01.MainActivity.requestPermissions(MainActivity.java:155)
at ch.ielse.demo.p01.MainActivity$1.onClick(MainActivity.java:74)
at ch.ielse.demo.p01.SheetDialog$Builder$1.onClick(SheetDialog.java:142)
at android.view.View.performClick(View.java:5730)
at android.view.View$PerformClick.run(View.java:22806)
at android.os.Handler.handleCallback(Handler.java:836)
at android.os.Handler.dispatchMessage(Handler.java:103)
at android.os.Looper.loop(Looper.java:203)
at android.app.ActivityThread.main(ActivityThread.java:6519)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1113)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:974)
Caused by: android.os.FileUriExposedException: file:///storage/emulated/0/Android/data/ch.ielse.demo.p01/cache/rxPicker/TEMP1595091369.jpg exposed beyond app through ClipData.Item.getUri()
at android.os.StrictMode.onFileUriExposed(StrictMode.java:1847)
at android.net.Uri.checkFileUriExposed(Uri.java:2346)
at android.content.ClipData.prepareToLeaveProcess(ClipData.java:833)
at android.content.Intent.prepareToLeaveProcess(Intent.java:8976)
at android.content.Intent.prepareToLeaveProcess(Intent.java:8961)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1647)
at android.app.Activity.startActivityForResult(Activity.java:4888)
at android.app.Activity.startActivityFromFragment(Activity.java:4874)
at android.app.Activity$HostCallbacks.onStartActivityFromFragment(Activity.java:7176)
at android.app.Fragment.startActivityForResult(Fragment.java:1150)
at android.app.Fragment.startActivityForResult(Fragment.java:1139)
at ch.ielse.view.imagecropper.RxImagePickerFragment.takeCamera(RxImagePickerFragment.java:170)
at ch.ielse.view.imagecropper.RxImagePicker.takeCamera(RxImagePicker.java:59)
at ch.ielse.demo.p01.MainActivity.takeCamera(MainActivity.java:104)
... 37 more

针对超大图或超长图，可以使用subsampling-scale-image-view试一试

我写图片查看时也遇到过4096问题，且有时候的需求就是需要显示原始尺寸，不能压缩，所以寻求了这个轮子进行大图的区块加载：subsampling-scale-image-view，你可以参考参考

还有BUG啊!

不好集成啊~E神,继续优化...

fragment之间hide和show，两个fragment都有MessagePicturesLayout是后一个首次显示是图片绘制不出来

fragment之间hide和show，两个fragment都有MessagePicturesLayout是后一个首次显示是图片绘制不出来

放大图片ImageWatcher太敏感了，怎么把图片旋转禁掉

大佬你好，请问这段代码是做什么的？

能不能更改，预览图片的背景颜色？