Hello.
How to set DragShadowBuilder alpha value?
I tried this, but it doesn't work.
private class CustomShadow extends View.DragShadowBuilder {
private View mView;
private Drawable shadow;
public CustomShadow(View view) {
super();
mView = view;
shadow = new BitmapDrawable(context.getResources(),
getBitmapFromView(mView));
shadow.setBounds(0, 0, shadow.getMinimumWidth(),
shadow.getMinimumHeight());
shadow.setAlpha(255);
}
@Override
public void onDrawShadow(Canvas canvas) {
shadow.draw(canvas);
}
@Override
public void onProvideShadowMetrics(Point shadowSize, Point
shadowTouchPoint) {
//super.onProvideShadowMetrics(shadowSize, shadowTouchPoint);
shadowSize.x = shadow.getMinimumWidth();
shadowSize.y = shadow.getMinimumHeight();
shadowTouchPoint.x = shadowSize.x / 2;
shadowTouchPoint.y = shadowSize.y / 2;
}
public 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;
}
}
Please help me!
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