android ViewPager嵌套WebView滑动冲突问题解决

比眉伴天荒 2023-10-04 12:05 98阅读 0赞

#### android ViewPager嵌套WebView滑动冲突问题解决 ####

在ViewPager, ScrollView, ListView等容器控件中内嵌了webview，特别是webview的大小固定的情况下，会出现滑动的冲突，可以采用如下自定义的webview来完美解决。

/**
     * 主要解决viewPager嵌套webView横向滚动问题
     */
    
    public class ExtendedWebView extends WebView {
    
        public ExtendedWebView(Context context) {
            super(context);
        }
    
        public ExtendedWebView(Context context, AttributeSet attrs) {
            super(context, attrs);
        }
    
        @Override
        protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) {
            if (clampedX) {
                ViewParent viewParent = findViewParentIfNeeds(this);
                viewParent.requestDisallowInterceptTouchEvent(false);
            }
            super.onOverScrolled(scrollX, scrollY, clampedX, clampedY);
        }
    
        @Override
        public boolean onTouchEvent(MotionEvent event) {
            if (event.getAction() == MotionEvent.ACTION_DOWN) {
                ViewParent viewParent = findViewParentIfNeeds(this);
                if (viewParent != null)
                    viewParent.requestDisallowInterceptTouchEvent(true);
            }
            return super.onTouchEvent(event);
        }
    
        private ViewParent findViewParentIfNeeds(View tag) {
            ViewParent parent = tag.getParent();
            if (parent == null) {
                return null;
            }
            if (parent instanceof ViewPager || parent instanceof AbsListView || parent instanceof ScrollView || parent instanceof HorizontalScrollView) {
                return parent;
            } else {
                if (parent instanceof View) {
                    findViewParentIfNeeds((View) parent);
                } else {
                    return parent;
                }
            }
            return parent;
        }
    }

文章作者: [JamesGZM][]这个方案是找的网上方案比较少的代码也不会对js进行操作

文章链接: [https://jamesgzm.github.io/posts/933d519d/][https_jamesgzm.github.io_posts_933d519d]

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