fix memory leak about bigimageviewer

[Juziwsw]

这个地方确实有内存泄露的情况，比较严重

[Piasy]

我用 LeakCanary 试了一下，并没有复现你所说的这个问题，倒是遇见了 square/leakcanary#696 这个问题。

不知你是怎么确定我这里有内存泄漏的？

[wanghaihui]

的确 我Redmi Note 3也遇到了

[Piasy]

抱歉各位，我近期没什么精力排查这边的问题，希望有朋友能帮忙排查解决，提交 pr :)

[yigepang]

的确有问题，内存泄漏
java.lang.OutOfMemoryError: Failed to allocate a 3126652 byte allocation with 905352 free bytes and 884KB until OOM
at dalvik.system.VMRuntime.newNonMovableArray(Native Method)
at android.graphics.BitmapFactory.nativeDecodeStream(Native Method)
at android.graphics.BitmapFactory.decodeStreamInternal(BitmapFactory.java:639)
at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:615)
at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:391)
at com.davemorrissey.labs.subscaleview.decoder.SkiaImageDecoder.decode(SkiaImageDecoder.java:61)
at com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView$BitmapLoadTask.doInBackground(SubsamplingScaleImageView.java:1688)
at com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView$BitmapLoadTask.doInBackground(SubsamplingScaleImageView.java:1662)
at android.os.AsyncTask$2.call(AsyncTask.java:288)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)

[yigepang]

以上问题是通过glide初始化导致，换成fresco初始化就好了

[hero0812]

10-11 17:07:15.004 7406-7406/com.binbin.university E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.binbin.university, PID: 7406
java.lang.OutOfMemoryError: Failed to allocate a 4665612 byte allocation with 3646864 free bytes and 3MB until OOM
at dalvik.system.VMRuntime.newNonMovableArray(Native Method)
at android.graphics.Bitmap.nativeCreate(Native Method)
at android.graphics.Bitmap.createBitmap(Bitmap.java:831)
at android.graphics.Bitmap.createBitmap(Bitmap.java:808)
at android.graphics.Bitmap.createBitmap(Bitmap.java:775)
at android.graphics.drawable.VectorDrawable$VectorDrawableState.createCachedBitmapIfNeeded(VectorDrawable.java:834)
at android.graphics.drawable.VectorDrawable.draw(VectorDrawable.java:318)
at android.widget.ImageView.onDraw(ImageView.java:1246)
at com.previewlibrary.wight.SmoothImageView.onDraw(SmoothImageView.java:155)
at android.view.View.draw(View.java:16195)
at android.view.View.updateDisplayListIfDirty(View.java:15192)
at android.view.View.draw(View.java:15965)
at android.view.ViewGroup.drawChild(ViewGroup.java:3610)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3400)
at android.view.View.draw(View.java:16198)
at android.view.View.updateDisplayListIfDirty(View.java:15192)
at android.view.View.draw(View.java:15965)
at android.view.ViewGroup.drawChild(ViewGroup.java:3610)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3400)
at android.view.View.draw(View.java:16198)
at android.support.v4.view.ViewPager.draw(ViewPager.java:2443)
at android.view.View.updateDisplayListIfDirty(View.java:15192)
at android.view.View.draw(View.java:15965)
at android.view.ViewGroup.drawChild(ViewGroup.java:3610)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3400)
at android.view.View.updateDisplayListIfDirty(View.java:15187)
at android.view.View.draw(View.java:15965)
at android.view.ViewGroup.drawChild(ViewGroup.java:3610)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3400)
at android.view.View.updateDisplayListIfDirty(View.java:15187)
at android.view.View.draw(View.java:15965)
at android.view.ViewGroup.drawChild(ViewGroup.java:3610)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3400)
at android.view.View.updateDisplayListIfDirty(View.java:15187)
at android.view.View.draw(View.java:15965)
at android.view.ViewGroup.drawChild(ViewGroup.java:3610)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3400)
at android.view.View.draw(View.java:16198)
at com.android.internal.policy.PhoneWindow$DecorView.draw(PhoneWindow.java:2690)
at android.view.View.updateDisplayListIfDirty(View.java:15192)
at android.view.ThreadedRenderer.updateViewTreeDisplayList(ThreadedRenderer.java:281)
at android.view.ThreadedRenderer.updateRootDisplayList(ThreadedRenderer.java:287)
at android.view.ThreadedRenderer.draw(ThreadedRenderer.java:322)
at android.view.ViewRootImpl.draw(ViewRootImpl.java:2620)
at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2439)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2072)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1112)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6035)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:858)
at android.view.Choreographer.doCallbacks(Choreographer.java:670)
at android.view.Choreographer.doFrame(Choreographer.java:606)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:844)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5453)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

[hero0812]

多图浏览，达到一定数量时，出现OOM，不知该问题该怎么解决？

[Piasy]

多图浏览是怎么实现的？可以分析一下为什么有内存没有释放，进而思考如何解决。

[Piasy]

Please try v1.4.5 :)