Android wraps the view to achieve a specular effect

This on TV with a lot of, online many are to ImageView pictures do, feel not very good, here to achieve a can to any view do reflection.

/** * * @className: MirrorView * @description: The normal view is encapsulated, so that the view has a reflection effect, note that after using this view, * will let the original view of the height     Expands refheight height to show reflective mirrors, * @author: Gaoshuai * @date: August 11, 2015 morning 11:31:16 */public class MirrorView extends framelayout{    Private View Mcontentview;    Protected Boolean mhasreflection = true;    private static int refheight =-1;        public static Paint refpaint = null;    Private Bitmap Mreflectbitmap;        Private Canvas Mreflectcanvas;                Public MirrorView (Context context) {super (context);        if (refheight = =-1) refheight = 100;            if (Refpaint = = null) {Refpaint = new Paint (Paint.anti_alias_flag);  Refpaint.setshader (New lineargradient (0, 0, 0, refheight, new int[] {0x77000000, 0x66aaaaaa, 0x0500000, 0x00000000}, new            Float[] {0.0f, 0.1f, 0.9f, 1.0f}, Shader.TileMode.CLAMP));        Refpaint.setxfermode (New Porterduffxfermode (PorterDuff.Mode.DST_IN)); } This.setclickAble (true); } public void Setcontentview (view view) {Framelayout.layoutparams LP = new Framelayout.layoutparams (LAYOUTP Arams.        Wrap_content, layoutparams.wrap_content);        Lp.bottommargin = Refheight;        Mcontentview = view;    AddView (view, LP);    Public View Getcontentview () {return mcontentview;    public void Setreflection (Boolean ref) {mhasreflection = ref;    } @Override public Boolean PerformClick () {return Mcontentview.performclick ();        } @Override protected void Dispatchdraw (canvas canvas) {super.dispatchdraw (canvas); if (mhasreflection) {if (Mreflectbitmap = = null) {Mreflectbitmap = Bitmap.createbitmap (mconten                Tview.getwidth (), Refheight, Bitmap.Config.ARGB_8888);            Mreflectcanvas = new Canvas (MREFLECTBITMAP); } drawreflection (Mreflectcanvas, Mcontentview);            Draw the reflection effect of this view canvas.save ();int dy = Mcontentview.getbottom ();            int dx = Mcontentview.getleft ();            Canvas.translate (dx, dy);            Canvas.drawbitmap (mreflectbitmap, 0, 0, NULL);        Canvas.restore ();    }} public Bitmap Getreflectbitmap () {return mreflectbitmap;        } public void Drawreflection (canvas canvas, view view) {Canvas.save ();        Canvas.cliprect (0, 0, view.getwidth (), refheight);        Canvas.save ();        Canvas.scale (1,-1);        Canvas.translate (0,-view.getheight ());        View.draw (canvas);        Canvas.restore ();        Canvas.drawrect (0, 0, view.getwidth (), Refheight, refpaint);    Canvas.restore (); }}

Test activity

public class Mainactivity extends activity{        @Override    protected void onCreate (Bundle savedinstancestate) {        super.oncreate (savedinstancestate);        Setcontentview (r.layout.activity_main);        Framelayout container = (framelayout) Findviewbyid (r.id.test);        MirrorView Mirroritemview = new MirrorView (this);        TextView TextView = new TextView (this);        Textview.setwidth (+);        Textview.settext ("I just want to test the Mirror View");        Textview.setbackgroundresource (r.drawable.ic_launcher);        Mirroritemview.setcontentview (TextView);        Container.addview (Mirroritemview);    }}

Android wraps the view to achieve a specular effect