Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.lang.ref.WeakReference;
import java.lang.reflect.Field;

import android.os.Build;

import android.view.ViewTreeObserver.OnScrollChangedListener;
import android.widget.PopupWindow;

public class Main {

    public final static void fixPopupWindow(final PopupWindow window) {
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
            try {
                final Field mAnchorField = PopupWindow.class.getDeclaredField("mAnchor");
                mAnchorField.setAccessible(true);
                Field mOnScrollChangedListenerField = PopupWindow.class
                        .getDeclaredField("mOnScrollChangedListener");
                mOnScrollChangedListenerField.setAccessible(true);

                final OnScrollChangedListener mOnScrollChangedListener = (OnScrollChangedListener) mOnScrollChangedListenerField
                        .get(window);

                OnScrollChangedListener newListener = new OnScrollChangedListener() {
                    public void onScrollChanged() {
                        try {
                            WeakReference<?> mAnchor = WeakReference.class.cast(mAnchorField.get(window));
                            Object anchor = mAnchor != null ? mAnchor.get() : null;

                            if (anchor == null) {
                                return;
                            } else {
                                mOnScrollChangedListener.onScrollChanged();
                            }
                        } catch (Exception e) {
                            e.printStackTrace();
                        }
                    }
                };

                mOnScrollChangedListenerField.set(window, newListener);
            } catch (Exception e) {
            }
        }
    }
}