android.support.v4.view.ObservableScrollView.java Source code

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Here is the source code for android.support.v4.view.ObservableScrollView.java

Source

package android.support.v4.view;

import android.content.Context;
import android.util.AttributeSet;
import android.widget.HorizontalScrollView;

public class ObservableScrollView extends HorizontalScrollView {

    private ScrollViewListener scrollViewListener = null;

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

    public ObservableScrollView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

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

    public void setScrollViewListener(ScrollViewListener scrollViewListener) {
        this.scrollViewListener = scrollViewListener;
    }

    @Override
    protected void onScrollChanged(int x, int y, int oldx, int oldy) {
        super.onScrollChanged(x, y, oldx, oldy);
        if (scrollViewListener != null) {
            scrollViewListener.onScrollChanged(this, x, y, oldx, oldy);
        }
    }

    public int scrollLength() {
        return this.computeHorizontalScrollRange();
    }

}