使用以下代码：Bitmap bitmap;View v1 = MyView.getRootView();v1.setDrawingCacheEnabled(true);bitmap = Bitmap.createBitmap(v1.getDrawingCache());v1.setDrawingCacheEnabled(false);
这MyView是View我们需要在屏幕中包含的内容。你也可以DrawingCache通过View这种方式获得(没有getRootView())。
还有另一种方式..
如果我们ScrollView以root身份查看，那么最好使用以下代码，LayoutInflater inflater = (LayoutInflater) this.getSystemService(LAYOUT_INFLATER_SERVICE);FrameLayout root = (FrameLayout) inflater.inflate(R.layout.activity_main, null); // activity_main is UI(xml) file we used in our Activity class. FrameLayout is root view of my UI(xml) file.root.setDrawingCacheEnabled(true);Bitmap bitmap = getBitmapFromView(this.getWindow().findViewById(R.id.frameLayout)); // here give id of our root layout (here its my FrameLayout's id)root.setDrawingCacheEnabled(false);
这是getBitmapFromView()方法public static Bitmap getBitmapFromView(View view) {
//Define a bitmap with the same size as the view
Bitmap returnedBitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(),Bitmap.Config.ARGB_8888);
//Bind a canvas to it
Canvas canvas = new Canvas(returnedBitmap);
//Get the view's background
Drawable bgDrawable =view.getBackground();
if (bgDrawable!=null)
//has background drawable, then draw it on the canvas
bgDrawable.draw(canvas);
else
//does not have background drawable, then draw white background on the canvas
canvas.drawColor(Color.WHITE);
// draw the view on the canvas
view.draw(canvas);
//return the bitmap
return returnedBitmap;
}
它将显示整个屏幕，包括隐藏在ScrollView
还有另一种更好的截屏方式。
我在这里截了屏幕截图WebView。WebView w = new WebView(this);
w.setWebViewClient(new WebViewClient()
{
public void onPageFinished(final WebView webView, String url) {
new Handler().postDelayed(new Runnable(){
@Override
public void run() {
webView.measure(View.MeasureSpec.makeMeasureSpec(
View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED),
View.MeasureSpec.makeMeasureSpec(0, View.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 height = bitmap.getHeight();
canvas.drawBitmap(bitmap, 0, height, paint);
webView.draw(canvas);
if (bitmap != null) {
try {
String filePath = Environment.getExternalStorageDirectory()
.toString();
OutputStream out = null;
File file = new File(filePath, "/webviewScreenShot.png");
out = new FileOutputStream(file);
bitmap.compress(Bitmap.CompressFormat.PNG, 50, out);
out.flush();
out.close();
bitmap.recycle();
} catch (Exception e) {
e.printStackTrace();
}
}
}
}, 1000);
}
});
希望这可以帮助..！
