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February 13, 2023 03:27
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Android WebView: resource interception and replacement by local resource
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| mWebView.setWebViewClient(new WebViewClient() { | |
| @Override | |
| public WebResourceResponse shouldInterceptRequest(WebView view, String url) { | |
| if (url.contains("creditcard_cvc.jpg")) { | |
| Log.v("WebView", "Replacing [" + url + "] with [R.raw.tmp_replacement]"); | |
| ContentResolver contentResolver = getActivity().getContentResolver(); | |
| return new WebResourceResponse(contentResolver.getType(Uri.parse(url)), "UTF-8", getResources().openRawResource(R.raw.tmp_replacement)); | |
| } | |
| return super.shouldInterceptRequest(view, url); | |
| } | |
| @TargetApi(Build.VERSION_CODES.LOLLIPOP) | |
| @Override | |
| public WebResourceResponse shouldInterceptRequest(WebView view, WebResourceRequest request) { | |
| if (request.getUrl().getEncodedPath().contains("creditcard_cvc.jpg")) { | |
| Log.v("WebView", "Replacing [" + request.getUrl() + "] with [R.raw.tmp_replacement]"); | |
| ContentResolver contentResolver = getActivity().getContentResolver(); | |
| return new WebResourceResponse(contentResolver.getType(request.getUrl()), "UTF-8", getResources().openRawResource(R.raw.tmp_replacement)); | |
| } | |
| return super.shouldInterceptRequest(view, request); | |
| } | |
| }); |
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This only works for Image type(jpg, or png ...), it doesn't work for video like mp4.