I'm trying to apply expand collapse feature on Webview Based on its Content height but i'm always getting wrong value Here is my code
public class MesuredHeightWebView extends WebView {
public MesuredHeightWebView(Context context) {
super(context);
}
public MesuredHeightWebView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public MesuredHeightWebView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
@Override
public void invalidate() {
super.invalidate();
if (getContentHeight() > 0) {
// WebView has displayed some content and is scrollable.
if(listener!=null)
listener.updateContentHeight(getContentHeight());
}
}
WebViewContentHeight listener;
public void setChangeContentListener(WebViewContentHeight listener) {
this.listener = listener;
}
}
and then in the fragment i tried to get the content height
webView.setWebChromeClient(new WebChromeClient(){
@Override
public void onProgressChanged(WebView view, int newProgress) {
super.onProgressChanged(view, newProgress);
if(newProgress==100)
{
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
webView.setChangeContentListener(new WebViewContentHeight() {
@Override
public void updateContentHeight(int height) {
if(height>0 && getActivity()!=null) {
System.out.println("the height2 is" + height + " " + Utils.convertPixelsToDp(height, getActivity()));
final int text_height = height;
but my problem is that i'm always getting wrong result Thanks
Use the following methods instead of getContentHeight()
method:
computeHorizontalScrollRange(); -> for width
computeVerticalScrollRange(); -> for height
these two methods will return the entire scrollable width/height rather than the actual widht/height of the webview on screen
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