WebView下一个/上一个页面过渡 [英] WebView next/previous page transitions

问题描述

我正在生成一种图书应用程序，可以在 WebView 中显示页面.我有下一个/上一个 ImageButtons 和一个 GestureOverlay 来检测向左/向右滑动.当我想换页时，我打电话:

I'm generating a book app, of sorts, that displays pages in a WebView. I have Next/Previous ImageButtons and a GestureOverlay to detect left/right swipes. When I want a page change I call:

private void changePage(int delta) {
    currentPageIndex = currentPageIndex + delta;        
    if (currentPageIndex < 0) {
        // negative index
        currentPageIndex = 0;
    } else if (currentPageIndex >= listOfPages.length) {
        // index requested is out of range of the list
        currentPageIndex = listOfPages.length - 1;
    } else {
        // set values for page load
        filename = listOfPages[currentPageIndex];
        mWebView.loadUrl("file:///android_asset/" + filename);
    }
}   

'listOfPages'是我的文件名的字符串数组，并且loadUrl()很好用，但是任何人都知道有什么方法能够进行页面转换以模拟简单的页面转向吗?

'listOfPages' is a string array of my filenames and loadUrl() works great, but is there any way that anyone knows of to be able to have a page transition to simulate a simple page turn?

推荐答案

如果有人感兴趣，我找到了一种方法.我定义了 Animation 变量:

If anyone's interested, I found a way to do this. I defined Animation variables:

Animation slideLeftAnimation = AnimationUtils.loadAnimation(getBaseContext(), R.anim.slide_left);
Animation slideRightAnimation = AnimationUtils.loadAnimation(getBaseContext(), R.anim.slide_right);

slide_left 和 slide_right xml文件来自

And the slide_left and slide_right xml files are from the Android API tutorials.

然后，对于左右滑动，我在 mWebView.loadUrl(url); 调用之前使用了 mWebView.startAnimation(leftOrRightAnimation); .

希望这对其他人有帮助！
克里斯

Then, for left or right swipes, I used mWebView.startAnimation(leftOrRightAnimation); before my mWebView.loadUrl(url); call.

Hope this helps anyone else!
Chris

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