출처: http://stackoverflow.com/questions/2238938/how-to-programmatically-scroll-android-webview
It turns out that the window.scrollTo() DOES work, you just can't add your own method named scrollTo(). For some reason my own scrollTo() method was being invoked when I called window.scrollTo().
So, in summary, to scroll a WebView to a particular DOM element, write a JavaScript function to do the scrolling:
function scrollToElement(id) {
var elem = document.getElementById(id);
var x = 0;
var y = 0;
while (elem != null) {
x += elem.offsetLeft;
y += elem.offsetTop;
elem = elem.offsetParent;
}
window.scrollTo(x, y);
}
and then from your Android app (Java code), tell your WebView to load a URL:
webView.loadUrl("javascript:scrollToElement('" + elemId + "')");
There are some issues with this approach, such as the scroll will not be nicely animated, but the general mechanism works.
The DOM window object does report the current scroll position of the WebView correctly (see window.pageXOffset, window.pageYOffset or window.scrollX, window.scrollY). If you just want to know the current scroll position of the WebView, write some JavaScript to call your Java code and pass along the X/Y offsets.
혹시 웹뷰 쓰시다가 옆에 스크롤 흰색 공간이 거슬리시는 분들은
webview.setVerticalScrollbarOverlay(true);
추가해주시면 되겟습니당
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