An Android implementation of a CSS effect

Big New Year's, to look at the effect:

Remember to see a CSS effect, the mouse over the circle, the circle is divided into four sub-circles, the sub-circle and the original circle occupy the same rectangle. This is an Android version of mouse-over events that turn into finger touch events. Nonsense not much to say, look at the code:

Package Com.sovnem.fabulouscircle;import Java.util.arraylist;import Java.util.random;import Android.content.context;import Android.content.res.resources;import Android.graphics.canvas;import Android.graphics.paint;import Android.util.log;import Android.view.motionevent;import Android.view.View;public Class Fabulousview extends View {int[] colors;private Random Rand; Arraylist<circle> Circles;boolean ismeasure; Paint Paint;public Fabulousview (context context) {super (context); init ();} private void Init () {Resources res = GetContext (). getresources (); colors = new int[] {Res.getcolor (Android. R.color.holo_blue_bright), Res.getcolor (Android. R.color.holo_green_light), Res.getcolor (Android. R.color.holo_orange_light), Res.getcolor (Android. R.color.holo_blue_dark), Res.getcolor (Android. R.color.holo_red_light), Res.getcolor (Android. R.color.holo_red_dark), Res.getcolor (Android. R.color.holo_blue_dark)};rand = new Random (), circles = new arraylist<fabulousview.circle> ();p aint = new paint ();} @Overrideprotected void OnDraw (canvas canvas) {super.ondraw (canvas); int L = Circles.size (); for (int i = 0; i < L; i++) {C Ircle C = circles.get (i); LOG.I ("info", "" + c.tostring ());p Aint.setcolor (C.color); Canvas.drawcircle (c.x, C.y, C.R, Paint);}} @Overrideprotected void onmeasure (int widthmeasurespec, int heightmeasurespec) {if (!ismeasure) {int w = getresources (). g Etdisplaymetrics (). Widthpixels;int h = getresources (). Getdisplaymetrics (). Heightpixels;int radius = Math.min (W, h); Circles.add (New Circle (W/2, H/2, RADIUS/2, Getrandomcolor ())); ismeasure = true;} Super.onmeasure (Widthmeasurespec, heightmeasurespec);} Random one color int getrandomcolor () {return colors[rand.nextint (colors.length)];} @Overridepublic boolean ontouchevent (Motionevent event) {//if (event.getaction () = = motionevent.action_up) handleevent (event); return true;} private void Handleevent (Motionevent event) {float x = Event.getx (); Float y = event.gety (); int L = circles.size (); Arraylist<circle> cs = new Arraylist<fabuLousview.circle> (); Boolean isIn = False;int remove = 0;for (int i = 0; i < L; i++) {Circle c = circles.get (i); if (c. Isinself (x, y)) {isIn = True;cs.addall (C.devide (new int[] {getrandomcolor (), Getrandomcolor (), Getrandomcolor (), Getrandomcolor ()})); remove = i;}} if (isIn) {circles.remove (remove); Circles.addall (CS); invalidate ();}} Class Circle {float x, y;float r;int color;public Circle (float x, float y, float r, int color) {super (); this.x = X;this.y = Y;THIS.R = R;this.color = color;} Arraylist<circle> devide (int[] colors) {arraylist<circle> cs = new arraylist<fabulousview.circle> () ; Cs.add (New Circle (X-r/2, Y-r/2, R/2, Colors[0])), Cs.add (New Circle (x + R/2, Y-r/2, R/2, colors[1]), CS. Add (New Circle (X-r/2, y + R/2, R/2, colors[2]); Cs.add (New Circle (x + r/2, y + r/2, R/2, colors[3]); return CS;} Boolean isinself (float px, float py) {return (THIS.X-PX) * (THIS.X-PX) + (this.y-py) * (this.y-py) <= THIS.R * THIS.R;} @OverridepUblic String toString () {return "Circle [x=" + x + ", y=" + y + ", r=" + R + ", color=" + color + "]";}}} 

An Android implementation of a CSS effect