Converting webview into a Bitmap

Question

I'm trying to load a webview with some html code and then capture it and turn into a Bitmap. However, all I can see in the ImageView I set to test it, is a blank square.

webViewToPrint.loadDataWithBaseURL("", dataStringHtml , "text/html", "UTF-8", "");
webViewToPrint.setWebViewClient(new WebViewClient() {
        @Override
        public void onPageFinished(WebView view, String url) {
              super.onPageFinished(view, url);

              Bitmap b = Bitmap.createBitmap( view.getHeight(), view.getWidth(), Config.ARGB_8888);
              Canvas canvas = new Canvas( b );
              view.draw(canvas);
              imageView.setImageBitmap(b);       
        }});

i this may help you :http://stackoverflow.com/questions/30409630/how-to-capture-the-webview-to-bitmap-in-android-5-0 — santoXme, Dec 28 '15 at 09:06

score 1 · Answer 1 · answered Dec 28 '15 at 09:07

1

 webViewToPrint.setWebViewClient(new WebViewClient()
    {
            public void onPageFinished(WebView view, String url)
            {
                    Picture picture = view.capturePicture();
                    Bitmap  b = Bitmap.createBitmap( picture.getWidth(),
                    picture.getHeight(), Bitmap.Config.ARGB_8888);
                    Canvas c = new Canvas( b );
                    picture.draw( c );
                    imageView.setImageBitmap(b);    }}

answered Dec 28 '15 at 09:07

Javad Jafari

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the imageView is empty.. now it doesn't even show a white rectangle like it used to – BVtp Dec 28 '15 at 09:11
what version u are testing? add this one also hope to help if (Build.VERSION.SDK_INT >= 21) { webview.enableSlowWholeDocumentDraw (); } make sure you call this method before calling setContentView() in your onCreate() – Javad Jafari Dec 28 '15 at 09:15
My device is API 19, so I can't use enableSlowWholeDocumentDraw() – BVtp Dec 28 '15 at 09:17

score 1 · Answer 2 · answered Dec 28 '15 at 11:23

1

Thank you guys for the help. The solution tough was to add another thread (postDelayed) inside onPageFinished with some delay (500 worked fine in my case).

answered Dec 28 '15 at 11:23

BVtp

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score 0 · Answer 3 · answered Dec 28 '15 at 10:34

0

Use the following code:

webViewToPrint.setDrawingCacheEnabled(true);

In onPageFinished()

Bitmap bitmap = Bitmap.createBitmap(view.getDrawingCache());
imageView.setImageBitmap(bitmap);

answered Dec 28 '15 at 10:34

Faraz

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Converting webview into a Bitmap

3 Answers3