Hi. I'm trying to set my contents from java class but it gives me the following error: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.samanefarhangi/com.example.samanefarhangi.PullToZoomScrollActivity}: java.lang.ClassCastException: com.example.samanefarhangi.pulllib.PullToZoomScrollViewEx cannot be cast to com.example.samanefarhangi.pulllib.PullToZoomScrollView at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2439) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2495) at android.app.ActivityThread.access$800(ActivityThread.java:153) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1349) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:157) at android.app.ActivityThread.main(ActivityThread.java:5633) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:515) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:896) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:712) at dalvik.system.NativeStart.main(Native Method) Caused by: java.lang.ClassCastException: com.example.samanefarhangi.pulllib.PullToZoomScrollViewEx cannot be cast to com.example.samanefarhangi.pulllib.PullToZoomScrollView

here is the code: private void loadViewForCode() {

    feed = (FeedItem) this.getIntent().getSerializableExtra("feed");
    PullToZoomScrollView scrollView = (PullToZoomScrollView) findViewById(R.id.scroll_view);
    View headView = LayoutInflater.from(this).inflate(R.layout.profile_head_view, null, false);


    TextView title = (TextView) headView.findViewById(R.id.tv_title);
    title.setText(feed.getTitle());

    TextView author = (TextView) headView.findViewById(R.id.tv_author);
    author.setText(feed.getAuthor());

    TextView date = (TextView) headView.findViewById(R.id.tv_date);
    date.setText(feed.getDate());

    View zoomView = LayoutInflater.from(this).inflate(R.layout.profile_zoom_view, null, false);

    ImageView contentImage = (ImageView) headView.findViewById(R.id.iv_user_head);
    try {
        new ImageDownloaderTask(contentImage).execute(feed.getAttachmentUrl());
    }catch (Exception e){
        e.printStackTrace();
    }

    View contentView = LayoutInflater.from(this).inflate(R.layout.profile_content_view, null, false);

    TextView htmlTextView = (TextView) contentView.findViewById(R.id.tv_content);
    htmlTextView.setText(Html.fromHtml(feed.getContent(), null, null));

    scrollView.setHeaderContainer(headView);
    scrollView.setZoomView(zoomView);
    scrollView.setContentContainerView(contentView);
}

I think it's a library problem!

I am trying to use PullToZoomScrollViewEx , it is working fine when the height of content view is less then the height of screen, means if content goes out of the screen, zooming stops working. I am using note 3 device. can you please check what is the issue? I tried to use the demo code as well having same issue.

很感谢提供这么酷的控件，但在使用中遇到一些问题 英文比较烂，描述就直接写中文了 我在Activity中仅有此控件：PullToZoomScrollViewEx 但是呈现结果却不尽人意，zoomView被遮挡，且图片高度较高的情况下无法正常缩放

代码如下如下 MainActivity

activity_main.xml

contentView

zoomView

headerView

顺便说一句，Gradle添加有问题，Manifest提示错误

ViewPager +fragmentsList +底部控制按钮做的切换页面。顺序点击控制的时候没问题，但跳着点就会报错。PullToZoomScrollView 页面是第三页，1跳到3，1跳到4或4跳到2时都会报错。 后来在网上找到解决方法 mViewPager.setOffscreenPageLimit(4);//初始化时全部预加载 不知道是bug还是使用方法的问题。发上来希望能帮助遇到同样问题的朋友 Thread [<1> main](Suspended %28exception IllegalArgumentException%29)

PullToZoomScrollViewEx(View).onRestoreInstanceState(Parcelable) line: 12993 PullToZoomScrollViewEx(PullToZoomBase).onRestoreInstanceState(Parcelable) line: 60
PullToZoomScrollViewEx(View).dispatchRestoreInstanceState(SparseArray) line: 12969
PullToZoomScrollViewEx(ViewGroup).dispatchRestoreInstanceState(SparseArray) line: 2761
LinearLayout(ViewGroup).dispatchRestoreInstanceState(SparseArray) line: 2767
LinearLayout(View).restoreHierarchyState(SparseArray) line: 12947
UserFragment(Fragment).restoreViewState(Bundle) line: 447
FragmentManagerImpl.moveToState(Fragment, int, int, int, boolean) line: 960 FragmentManagerImpl.attachFragment(Fragment, int, int) line: 1291
BackStackRecord.run() line: 672 FragmentManagerImpl.execPendingActions() line: 1478 FragmentManagerImpl.executePendingTransactions() line: 478
RightPagerAdapter(FragmentPagerAdapter).finishUpdate(ViewGroup) line: 141
MianViewPager(ViewPager).populate(int) line: 1068
MianViewPager(ViewPager).setCurrentItemInternal(int, boolean, boolean, int) line: 550
MianViewPager(ViewPager).setCurrentItemInternal(int, boolean, boolean) line: 509
MianViewPager(ViewPager).setCurrentItem(int) line: 490
MainActivity$MyOnTabsClickListener.onClick(View) line: 182

Hi, thanks for the great library! Now I'm trying to apply the same effect on WebView - to zoom in it content on pull gesture. But it seems that if I'm just replacing ImageView with WebView - scale logic doesn't work at all, it just showing the bottom (hidden) part of webpage content. Any ideas please?

12-10 17:29:07.293: W/System.err(10310): java.lang.IllegalArgumentException: Wrong state class, expecting View State but received class android.widget.AbsListView$SavedState instead. This usually happens when two views of different type have the same id in the same hierarchy. This view's id is id/pullToZoomListView. Make sure other views do not use the same id.

   你好FranK-Zhu，首先非常感谢你提供的开源代码，我从中学习到不少东西。
   现在的情况是这样的，我使用了你的demo，但是遇到一个问题。我的zoomView（或者headView）是

一个地图（高德），在对zoomView进行滑动时，会被Listview拦截，页面上下滑动，但是我想要的是地图 相应这些滑动事件，比如两指放大缩小、上下移动...我尝试过给zoomView注册touchListener，并返回true 拦截事件，但是发现这样做没有得到想要的结果，给headView和mHeaderContainer注册ontouchListener 也是如此。 想请教下，这是神马原因？有没有解决的方法或是思路。 如果这个问题比较浅薄或者幼稚请见谅，我是新手。 谢谢。

When I switch PullToZoomScrollActivity to AppCompatActivity and use Toolbar in the layout with transparent status bar, the image doesn't always start at the top of the status bar.

Also, when you get the layoutParams to make it work, at this line. LinearLayout.LayoutParams localObject = new LinearLayout.LayoutParams(mScreenWidth, (int) (7.0F * (mScreenWidth / 16.0F)));

Then the Pull down to Zoom still doesn't start until the bottom of the status bar and the status bar has a light grey background.

Any ideas on the pull down to zoom from the top of the status bar?

In the mean time, I put android:background="?attr/colorPrimaryDark" in the profile_zoom_view.xml ImageView so the grey status bar will be gone.

作者大人你好： 我使用了android源码中的 HeaderGridView，想将其加入这个工程中，但是使用PullToZoomBase后 zoomview以及headerview中的控件findviewbyid都是Null

PullToZoomGridView的代码和PullToZoomListViewEx的代码基本一样，只是继承中改成了PullToZoomBase 是不是这样改不行呢？

Is it possible to start the zooming effect while flinging/fast scrolling? I mean, right now if you try to fling and you reach the top, there is no zooming. It would be really cool to add this feature to improve motion. Let me know if you need any clarification, I don't know if I explained it clear enough

      if ((!mIsFinished) && (mScale > 1.0D)) {
                float currentThreadTime=SystemClock.currentThreadTimeMillis();
                               float f1 = ((float) SystemClock.currentThreadTimeMillis()- 

(float) mStartTime) / (float) mDuration; f2 = mScale - (mScale - 1.0F) * PullToZoomScrollViewEx.sInterpolator.getInterpolation(f1);

你好！很高兴能用到你的库，在用的时候，发现你的PullZoomView（ScrollView） 下拉时候（在顶部上边还有内容时候）往下拉时候！到内容最top的时候拉不动了！要放手才可以往下拉！你的PullToZoomBase类中 在判断的时候放行了事件，在move时候，导致只能内部的scrollView能滑动，PullZoomView没有把事件拦截，在onInterceptTouchEvent方法中 你在move事件判断是否拦截 ，但是放行了事件给子view move事件不会有了，默认move事件一直给子view，导致出现这个问题！