albert-lii / imageviewer Goto Github PK

场景：

原图尺寸：W=600px, H=800px
缩略图尺寸：W=600px, H=600px （缩略图为原图的中间部分）

列表上的使用的是缩略图，点击缩略图打开imageViewer（传入的是原图的URL），就会出现第一次会稍微有点抖动，不自然，但是第二次就好了。第二次好的原因是：

override fun onResourceReady(resource: Drawable, transition: Transition<in Drawable>?) {
    view.setImageDrawable(resource)

    // 把下面2行注释了后，第二次也会抖动。
    frames.get(position).setImageWidth(resource.intrinsicWidth.toFloat())
    frames.get(position).setImageHeight(resource.intrinsicHeight.toFloat())
}

目前发现的问题，未考虑有head和foot的情况，导致数组越界
未考虑同一个页面两个列表的情况，如果第一个列表为1条数据，先点击第一个列表的图片，再点击第二个列表的第二条，会出异常，只能通过重写indexui的handleItemChanged来解决，因为这里没有判断getIndexView为null。
在绑定Imageloader的时候，回调里的object直接用数据源里面的model数据不就行了吗？非得写死用viewdata的src，这样不同的model传递进去首先要继承viewdata,还得把数据格式一遍，一点扩展性都没有

recyclerview使用的时候应该注意哪些问题呢，总是报空指针异常，求助 @albert-lii

做压缩处理了吗？预览的时候很模糊

ps.首先感谢作者大佬的库，真的很好用
关于标题的问题，我现在想实现往上拖拽的时候也能够退出图片浏览，类似于微博的预览效果，请问有什么实现思路吗？

如图上面的照片本应该居中的，不知道咋的向下偏

动态图预览无法正常播放，第一次点击出来预览会变模糊

一直双指放大会闪退

当用户使用返回键时，如果图片预览器为打开，或者准备打开等状态，那么返回动作为关闭预览画面，否则就根据业务执行其他操作，其实现代码如下

    @Override
    public void onBackPressed() {
        int viewState = mDetailImagePreview.getViewState();
        if (viewState == ImageViewerState.STATE_READY_OPEN
                || viewState == ImageViewerState.STATE_OPENING
                || viewState == ImageViewerState.STATE_COMPLETE_OPEN
                || viewState == ImageViewerState.STATE_WATCHING) {
            mDetailImagePreview.close();
            mFlowLayout.setVisibility(View.VISIBLE);
        } else {
            finish();
        }
    }

上述，对于状态的判断有些繁琐。所以希望提供一个方法，能够简化判断，即如下：

    @Override
    public void onBackPressed() {
        if (mDetailImagePreview.readyWatch()) { // 名字瞎起的
            mDetailImagePreview.close();
            mFlowLayout.setVisibility(View.VISIBLE);
        } else {
            finish();
        }
    }

或者

    @Override
    public void onBackPressed() {
        int viewState = mDetailImagePreview.getViewState();
        if (viewState <= ImageViewerState.STATE_WATCHING) {
            mDetailImagePreview.close();
            mFlowLayout.setVisibility(View.VISIBLE);
        } else {
            finish();
        }
    }

对于后一种方法，鉴于从 2.0.2 升级到 2.1.2 的过程中，许多方法以及状态遭废弃，不可用的行为，希望大神在代码里注释一下，以后版本更新，该形式不会受到影响，^_^///

同理，希望对预览器不在浏览中也提供类似的方法（目前版本，关闭之后的状态为拖拽，这个顺序不妨改一改）

点开预览或者横向列表 ，点开第一张图片，先正着滑动到最后，然后关闭大图，再点开，然后倒着滑动某张图片后，再关闭大图预览，再点开，滑动就会出现崩溃了，也就是上面所抛出的异常。
06-19 09:12:43.856 277-369/? E/SurfaceFlinger: Failed to find layer (indi.liyi.example/indi.liyi.example.ui.VerticalListActivity#0) in layer parent (no-parent).
06-19 09:13:03.884 13083-13083/indi.liyi.example E/AndroidRuntime: FATAL EXCEPTION:
mainProcess: indi.liyi.example, PID: 13083java.lang.RuntimeException:
Canvas: trying to use a recycled bitmap android.graphics.Bitmap@ff78def
at android.graphics.BaseCanvas.throwIfCannotDraw(BaseCanvas.java:55)
at android.view.DisplayListCanvas.throwIfCannotDraw(DisplayListCanvas.java:226)
at android.view.RecordingCanvas.drawBitmap(RecordingCanvas.java:97)
at android.graphics.drawable.BitmapDrawable.draw(BitmapDrawable.java:529)
at android.widget.ImageView.onDraw(ImageView.java:1367)
at android.view.View.draw(View.java:19315)
at android.view.View.updateDisplayListIfDirty(View.java:18232)
at android.view.View.draw(View.java:19030)
at android.view.ViewGroup.drawChild(ViewGroup.java:4297)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4083)
at android.view.View.updateDisplayListIfDirty(View.java:18223)
at android.view.View.draw(View.java:19030)
at android.view.ViewGroup.drawChild(ViewGroup.java:4297)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4083)
at android.view.View.draw(View.java:19323)
at android.support.v4.view.ViewPager.draw(ViewPager.java:2426)
at android.view.View.updateDisplayListIfDirty(View.java:18232)
at android.view.View.draw(View.java:19030)
at android.view.ViewGroup.drawChild(ViewGroup.java:4297)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4083)
at android.view.View.draw(View.java:19323)
at android.view.View.updateDisplayListIfDirty(View.java:18232)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:4281)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:4261)
at android.view.View.updateDisplayListIfDirty(View.java:18181)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:4281)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:4261)
at android.view.View.updateDisplayListIfDirty(View.java:18181)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:4281)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:4261)
at android.view.View.updateDisplayListIfDirty(View.java:18181)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:4281)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:4261)
at android.view.View.updateDisplayListIfDirty(View.java:18181)
at android.view.ThreadedRenderer.updateViewTreeDisplayList(ThreadedRenderer.java:669)
at android.view.ThreadedRenderer.updateRootDisplayList(ThreadedRenderer.java:675)
at android.view.ThreadedRenderer.draw(ThreadedRenderer.java:783)
at android.view.ViewRootImpl.draw(ViewRootImpl.java:3117)
at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2926)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2464)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1446)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7014)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:916)
at android.view.Choreographer.doCallbacks(Choreographer.java:728)
at android.view.Choreographer.doFrame(Choreographer.java:660)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:902)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6523)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:857)

不能用本地图片吗

Process: com.liyi.example, PID: 22874
java.lang.NullPointerException: Attempt to invoke virtual method 'float com.liyi.viewer.ViewData.getTargetX()' on a null object reference
at com.liyi.viewer.dragger.WxImageDragger.exit(WxImageDragger.java:179)
at com.liyi.viewer.dragger.WxImageDragger.onRelease(WxImageDragger.java:108)
at com.liyi.viewer.widget.ScaleImageView.onActionUp(ScaleImageView.java:212)
at com.liyi.viewer.widget.ScaleImageView.onTouchEvent(ScaleImageView.java:189)
at android.view.View.dispatchTouchEvent(View.java:9302)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2590)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2257)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2596)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2271)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2596)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2271)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2596)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2271)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2596)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2271)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2596)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2271)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2596)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2271)
at com.android.internal.policy.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2408)
at com.android.internal.policy.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1742)
at android.app.Activity.dispatchTouchEvent(Activity.java:2805)
at com.android.internal.policy.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2369)
at android.view.View.dispatchPointerEvent(View.java:9522)
at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:4729)
at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:4593)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4137)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4190)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4156)
at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:4282)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4164)
at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:4339)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4137)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4190)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4156)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4164)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4137)
at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:6461)
at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:6427)
at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:6388)
at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:6571)
at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:185)
at android.os.MessageQueue.nativePollOnce(Native Method)
at android.os.MessageQueue.next(MessageQueue.java:323)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5441)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

if (state == STATE_WATCHING) {
position = imagePager.getPosition();//图片滑动到下一张图片后 position还是首次点击图片打开的position
}

还有一个小bug就是
Glide.with(this).load(source).into(imageView)这种加载图片的方式，第一张图片会模糊

如果通过imageview的imageBitmap属性添加图片没问题。
你的demo也是这样的。

加载动态图的时候遇到的问题

大哥，maven { url "https://dl.bintray.com/albertlii/android-maven/" }已经无法依赖项目了。目前的几个库，都报错了
implementation 'com.liyi.view:flowview:1.1.0'
implementation 'com.liyi.view:auto-gridview:1.0.8'
implementation 'indi.liyi.view:image-viewer:3.0.1'
请问有没有替代方案让我正常依赖上这个3个库？

Unable to start activity ComponentInfo{com.nijigenlink.gb/com.liyi.viewer.view.ImagePreviewActivity}: android.view.InflateException: Binary XML file line #0: Binary XML file line #0: Error inflating class uk.co.senab.photoview.PhotoView

该控件由于寄托于photoView才可以做大图展示，目前PhotoView加载长图的时候，若图片长度或高度超过4096时无法加载，加载出来就是一个黑色背景，啥都没有

整体还不错，但是图片加载那一块，有很严重的内存泄露的问题。

支持图片/视频混合吗

需要修改源码ImageDrawee的imageView类型

RT

在 2.0.2 版本报一下错误，可以看看最新版本是否已经修复该BUG：

pointerIndex out of range
com.liyi.viewer.widget.ImagePager.onInterceptTouchEvent(ImagePager.java:68)

这是Bugly提供的解决方案，可以参考一下
参数不匹配异常，通常由于传递了不正确的参数导致。
常见于：

1. Activity、Service状态异常；
2. 非法URL；
3. UI线程操作。
   4.Fragment中嵌套了子Fragment，Fragment被销毁，而内部Fragment未被销毁，所以导致再次加载时重复，在onDestroyView() 中将内部Fragment销毁即可
   5.在请求网络的回调中使用了glide.into(view),view已经被销毁会导致该错误

怎么突然升级到3.0.1就不能用了....吓skr人

第一次加载图片时图片模糊，因为有开场动画的原因，如何修改这个问题

我需求要图片是滑动的，recycleview 一次只能显示3个，但是总共有10张图片，滑动显示，你可以适配一下吗？

1.是不是可以先加载小图然后放大呢，或者加一个加载效果

java.lang.IllegalArgumentException: pointerIndex out of range
at android.view.MotionEvent.nativeGetAxisValue(Native Method)
at android.view.MotionEvent.getX(MotionEvent.java:2201)
at android.support.v4.view.ViewPager.onInterceptTouchEvent(ViewPager.java:2066)
at com.liyi.viewer.widget.viewpager.ImagePager.onInterceptTouchEvent(ImagePager.java:68)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2511)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at com.android.internal.policy.DecorView.superDispatchTouchEvent(DecorView.java:448)
at com.android.internal.policy.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1829)
at android.app.Activity.dispatchTouchEvent(Activity.java:3307)
at com.android.internal.policy.DecorView.dispatchTouchEvent(DecorView.java:410)
at android.view.View.dispatchPointerEvent(View.java:12015)
at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:4795)
at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:4609)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4147)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4200)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4166)
at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:4293)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4174)
at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:4350)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4147)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4200)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4166)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4174)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4147)
at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:6661)
at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:6635)
at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:6596)
at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:6764)
at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:186)
at android.os.MessageQueue.nativePollOnce(Native Method)
at android.os.MessageQueue.next(MessageQueue.java:325)
at android.os.Looper.loop(Looper.java:142)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)

因为展示的图片都是比较高清的，比如说demo中的6张图片，这个时候，打开自定义控件imageviewer后，内存会从100M飙升到180M，是不是应该在viewpager切换的过程中及时回收，这是第一个问题。第二个问题是退出imageviewer后，能否做到及时回收图片的内存呢？

技术探讨，可能和框架本身无关，也可能有关，让框架更完善，盼复，辛苦了，感谢你的分享，祝好。

Recyclerview + AutoGridView + Imageviewer 显示的动画不流畅， 有时候还有错位，这个viewdata 让使用更复杂