Question

I have wrote a method to convert any layout Liner,Relative,Frame etc into Bitmap but I want to make this method generic so that it accepts android.view.ViewGroup as a parameter rather than specific Relative or LinearLayout.

Here is my method below:

public Bitmap getBitmapFromView(RelativeLayout v) {
        v.setLayoutParams(new LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT));
        v.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
        v.layout(0, 0, v.getMeasuredWidth(), v.getMeasuredHeight());
        Bitmap b = Bitmap.createBitmap(v.getMeasuredWidth(), v.getMeasuredHeight(), Bitmap.Config.ARGB_8888);

        Canvas c = new Canvas(b);
        v.draw(c);
        return b;
    }

Answer 1

Both Layout’s inherit from ViewGroup, so you can use ViewGroup as method parameter and all those statements will works fine.

Also you should use ViewGroup.LayoutParams instead of RelativeLayout.LayoutParams to make it generic.