private void AddBall(float x, float y)
{
var rnd = new Random();
var circle = new OvalShape();
circle.Resize(BallSize * density, BallSize * density);
var drawable = new ShapeDrawable(circle);
var shapeHolder = new ShapeHolder(drawable);
shapeHolder.X = x;
shapeHolder.Y = y - (BallSize / 2f);
var red = 100 + rnd.Next(155);
var green = 100 + rnd.Next(155);
var blue = 100 + rnd.Next(155);
var color = new Color(red, green, blue);
var darkColor = new Color(red / 4, green / 4, blue);
var paint = drawable.Paint;
var gradient = new RadialGradient(37.5f, 12.5f, 50f, color, darkColor, Shader.TileMode.Clamp);
paint.SetShader(gradient);
shapeHolder.Paint = paint;
balls.Add(shapeHolder);
}
private void CreateBallView()
{
this.FV = new FrameLayout(this);
var shape = new OvalShape();
var dr = new ShapeDrawable(shape);
dr.Paint.Color = Color.WhiteSmoke;
dr.Paint.Alpha = 100;
this.FV.Background = dr;
//������βü��
//this.FV.SetClipChildren(true);
//this.FV.SetClipToPadding(true);
this.FV.SetOnTouchListener(this);
this.FV.SetOnClickListener(this);
var img = new ImageView(this);
img.SetImageResource(Resource.Drawable.Icon);
this.Img = img;//������ FreameLayout ��������
this.FV.AddView(img);
var param = new WindowManagerLayoutParams();
param.Width = WindowManagerLayoutParams.WrapContent;
param.Height = WindowManagerLayoutParams.WrapContent;
//������������Ӧ���� ԭ�㣬 ������ó�����ֵ�� �϶���ʱ��λ�û��д��
param.Gravity = GravityFlags.Top | GravityFlags.Left;
param.Flags = WindowManagerFlags.NotFocusable;
//�������ã� ��Ȼ���� WindowManager.AddView ��ʱ���
param.Type = WindowManagerTypes.Phone;
param.Format = Android.Graphics.Format.Transparent;
this.WindowManager.AddView(this.FV, param);
}
private Drawable CreateDrawable (int color)
{
var ovalShape = new OvalShape ();
var shapeDrawable = new ShapeDrawable (ovalShape);
shapeDrawable.Paint.Color = new Color (color);
if (hasShadow && !HasLollipopApi) {
var shadowDrawable = Resources.GetDrawable (size == FabSize.Normal ?
Resource.Drawable.fab_shadow :
Resource.Drawable.fab_shadow_mini);
var layerDrawable = new LayerDrawable (new Drawable[]{ shadowDrawable, shapeDrawable });
layerDrawable.SetLayerInset (1, shadowSize, shadowSize, shadowSize, shadowSize);
return layerDrawable;
} else {
return shapeDrawable;
}
}