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[英]how to get the path of the image(.png) file that is stored in assets folder in android
[英]How to convert HTML files (stored in assets) to image in android?
我正在尝试将存储为资产的html文件转换为图像,以便我可以共享它们。 我尝试了以下代码:
Picture picture = webView.capturePicture();
Bitmap b = Bitmap.createBitmap(
picture.getWidth(), picture.getHeight(), Bitmap.Config.ARGB_8888);
Canvas c = new Canvas(b);
picture.draw(c);
FileOutputStream fos = null;
try {
fos = new FileOutputStream( Environment.getExternalStorageDirectory().toString() +"/temp.jpg");
if ( fos != null ) {
b.compress(Bitmap.CompressFormat.JPEG, 100, fos);
Toast.makeText(SyllabusPage_NW.this, "created", Toast.LENGTH_SHORT).show();
Intent sharingIntent = new Intent(Intent.ACTION_SEND);
Uri screenshotUri = Uri.parse(Environment.getExternalStorageDirectory().toString() + "/temp.jpg");
sharingIntent.setType("image/jpeg");
sharingIntent.putExtra(Intent.EXTRA_STREAM, screenshotUri);
startActivity(Intent.createChooser(sharingIntent, "Share image using"));
fos.close();
}
}
catch( Exception e ) {
Toast.makeText(SyllabusPage_NW.this, "Error", Toast.LENGTH_SHORT).show();
}
附加了结果,并附加了预期结果。 Web视图仅捕获html页面的第一部分。 我想知道如何捕获整个html页面而不只是第一部分?
对于API Lollipop及更高版本,应启用缓慢绘制:
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
WebView.enableSlowWholeDocumentDraw();
}
然后通过调试检查图片的高度是否正确。
如果不是,首先测量Webview,然后进行布局。
webView.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED),View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
webView.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());
webView.buildDrawingCache(true);
Bitmap b = Bitmap.createBitmap(webView.getDrawingCache());
webView.setDrawingCacheEnabled(false);
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