Android Webview - Webpage should fit the device screen

user_275845 0
Viewed 269823

I have tried the following to fit the webpage based on the device screen size.

mWebview.setInitialScale(30);

and then set the metadata viewport

<meta name="viewport" content="width=320, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0; minimum-scale=1.0; user-scalable=0;"/>
<meta name="viewport" content="width=device-width, target-densityDpi=medium-dpi"/>

But nothing works, webpage is not fixed to the device screen size.

Can anyone tell me how to get this?

android-webview webview scaling android
22 Answers

For any developer landed here and facing a problem dealing with Webview initial zoom/scale(especially in custom webpages).

   webView.getSettings().setJavaScriptEnabled(true);
        webView.getSettings().setUseWideViewPort(false); //make sure this method is false so setInitialScale() can work correctly
        webView.getSettings().setLoadWithOverviewMode(true);
        webView.setInitialScale(110);
user_99102650

here's an updated version, not using deprecated methods, based upon @danh32's answer:

protected int getScale(Double contentWidth) {
    if(this.getActivity() != null) {
        DisplayMetrics displaymetrics = new DisplayMetrics();
        this.getActivity().getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
        Double val = displaymetrics.widthPixels / contentWidth * 100d;
        return val.intValue();
    } else {
        return 100;
    }
}

to be used alike:

int initialScale = this.getScale(420d);
this.mWebView.setInitialScale(initialScale);
user_5493720

For reference, this is a Kotlin implementation of @danh32's solution:

private fun getWebviewScale (contentWidth : Int) : Int {
    val dm = DisplayMetrics()
    windowManager.defaultDisplay.getRealMetrics(dm)
    val pixWidth = dm.widthPixels;
    return (pixWidth.toFloat()/contentWidth.toFloat() * 100F)
             .toInt()
}

In my case, width was determined by three images to be 300 pix so:

webview.setInitialScale(getWebviewScale(300))

It took me hours to find this post. Thanks!

user_26313040
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