listening to scroll events horizontalscrollview android

I am trying to listen to the event when the HorizontalScrollView is scrolled. Tried this but it does not print anything.

HorizontalScrollView headerScrollView = new HorizontalScrollView(this);

    headerScrollView.setOnTouchListener(new OnTouchListener() {

        @Override
        public boolean onTouch(View v, MotionEvent event) {
            // TODO Auto-generated method stub开发者_开发知识库
            Log.i("hv1",event.toString());
            Log.i("hv1","HELLO");
            return false;
        }
    });

The actual problem is, I want to scroll two HorizontalScrollView at a time..ie; both of them need to scroll simultaneously when atleast one of them scrolled. any workaround?

I used the answer below and then tried implementing this but I am not sure how I need to use the methods in the class.

TestHorizontalScrollView headerScrollView = (TestHorizontalScrollView) findViewById(R.id.headerHv); 

Is this the way I need to point to the hsv element in the layout file?

You may want to try creating your own custom class that extends HorizontalScrollView and overriding the onScrollChanged() function as such

public class TestHorizontalScrollView extends HorizontalScrollView {

    public TestHorizontalScrollView(Context context) {
        super(context);
    }


    @Override
    protected void onScrollChanged(int l, int t, int oldl, int oldt) {
        // TODO Auto-generated method stub
        Log.i("Scrolling", "X from ["+oldl+"] to ["+l+"]");
        super.onScrollChanged(l, t, oldl, oldt);
    }

}

This overriden function will catch all changes to the scroll position even when the view is not being touched. This should keep your scroll views in sync.

old question, but maybe helpful. You can do something like this:

scrollOne = (HorizontalScrollView)findViewById(R.id.horizontal_one);
scrollTwo = (HorizontalScrollView)findViewById(R.id.horizontal_two);

scrollTwo.setOnTouchListener(new OnTouchListener(){

    @Override
    public boolean onTouch(View view, MotionEvent event) {
        // TODO Auto-generated method stub

        int scrollX = view.getScrollX();
        int scrollY = view.getScrollY();

        scrollOne.scrollTo(scrollX, scrollY);
                    return false;
        }

    });

ScrollView with Listener, api < 23

write below in your code

MyHorizontalScrollView scrollView = (MyHorizontalScrollView)view.findViewById(R.id.scrollViewBrowse);
        scrollView.setOnScrollChangedListener(new MyHorizontalScrollView.OnScrollChangedListener() {
            @Override
            public void onScrollChanged(int l, int t, int oldl, int oldt) {

            }
        });

MyHorizontalScrollView

   public class MyHorizontalScrollView extends ScrollView {

        public OnScrollChangedListener mOnScrollChangedListener;

        public MyHorizontalScrollView(Context context) {
            super(context);
        }

        public MyHorizontalScrollView(Context context, AttributeSet attrs) {
            super(context, attrs);
        }

        public MyHorizontalScrollView(Context context, AttributeSet attrs, int defStyleAttr) {
            super(context, attrs, defStyleAttr);
        }

        @Override
        protected void onScrollChanged(int l, int t, int oldl, int oldt) {
            super.onScrollChanged(l, t, oldl, oldt);

            if (mOnScrollChangedListener != null) {
                mOnScrollChangedListener.onScrollChanged(l, t, oldl, oldt);
            }
        }

        public void setOnScrollChangedListener(OnScrollChangedListener onScrollChangedListener){
            this.mOnScrollChangedListener = onScrollChangedListener;
        }

        public interface OnScrollChangedListener{
            void onScrollChanged(int l, int t, int oldl, int oldt);
        }

    }

* Xml file *

<MyHorizontalScrollView
        android:id="@+id/scrollViewBrowse"
        android:layout_width="match_parent"
        android:layout_height="fill_parent"
        android:background="@drawable/backgroung"
        android:padding="10dp">
 </MyHorizontalScrollView>

To Avoid the the Api Level Problem... follow this.

scrollView.getViewTreeObserver().addOnScrollChangedListener(new ViewTreeObserver.OnScrollChangedListener() {
        @Override
        public void onScrollChanged() {
            int scrollY = scrollView.getScrollY(); 
            int scrollX = scrollView.getScrollX();

            if (scrollY > 500) {

            } else {

            }
        }
    });

you can try this, i've tried so many ways, but none of them meet my needs, and then i tried to do it myself, and i succeed , and it seems good , it's smooth.

<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="horizontal">

<ScrollView
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">
        <com.szl.fundlistdemo.WrapContentListView
            android:id="@+id/left_lv"
            android:layout_width="100dp"
            android:layout_height="wrap_content"
            android:scrollbars="none"/>

        <HorizontalScrollView
            android:id="@+id/hscrollview"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content">

            <com.szl.fundlistdemo.WrapContentListView
                android:id="@+id/right_lv"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"/>

        </HorizontalScrollView>
    </LinearLayout>


</ScrollView>

public class WrapContentListView extends ListView{
public WrapContentListView(Context context) {
    super(context);
}

public WrapContentListView(Context context, AttributeSet attrs) {
    super(context, attrs);
}

public WrapContentListView(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
}


@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,MeasureSpec.AT_MOST);
    super.onMeasure(widthMeasureSpec, expandSpec);
}
}

Based @Dipak's answer In kotlin:

binding.scrollList.viewTreeObserver.addOnScrollChangedListener {
     val X = binding.scrollList.scrollX
     val Y = binding.scrollList.scrollY
}