6
我想在拖动开始时增加图像阴影 我创建了自定义dragshadowbuilder并增加了大小double,但没有任何事情发生。android dragshadowbuilder影子大小
public class ImageDragShadowBuilder extends View.DragShadowBuilder {
public ImageDragShadowBuilder(View v) {
super(v);
}
@Override
public void onProvideShadowMetrics(Point shadowSize, Point touchPoint) {
shadowSize.set(getView().getWidth()*2, getView().getHeight()*2);
touchPoint.set(getView().getWidth()/2, getView().getHeight()/2);
}}
是什么原因?