Android L, трябва да извикате WebView.enableSlowWholeDocumentDraw(), преди да създадете WebView. Тоест, ако имате някакви WebView във вашето оформление, уверете се, че сте извикали този метод, преди да извикате setContentView() във вашия onCreate().
свързано Михаил Наганов:https://stackoverflow.com/a/30084485/703225
@Override
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
WebView.enableSlowWholeDocumentDraw();
}
...
setContentView(layout);
...
...
}
тогава:
/**
* WevView screenshot
*
* @param webView
* @return
*/
public static Bitmap screenshot(WebView webView, float scale11) {
try {
float scale = webView.getScale();
int height = (int) (webView.getContentHeight() * scale + 0.5);
Bitmap bitmap = Bitmap.createBitmap(webView.getWidth(), height, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
webView.draw(canvas);
return bitmap;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
ако не използвате webView.getScale(), също:
public static Bitmap screenshot2(WebView webView) {
webView.measure(MeasureSpec.makeMeasureSpec(
MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED),
MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
webView.layout(0, 0, webView.getMeasuredWidth(), webView.getMeasuredHeight());
webView.setDrawingCacheEnabled(true);
webView.buildDrawingCache();
Bitmap bitmap = Bitmap.createBitmap(webView.getMeasuredWidth(),
webView.getMeasuredHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
Paint paint = new Paint();
int iHeight = bitmap.getHeight();
canvas.drawBitmap(bitmap, 0, iHeight, paint);
webView.draw(canvas);
return bitmap;
}
person
qinmiao
schedule
12.03.2016