Android Push Door effect

 Public classMainactivityextendsrelativelayout{PrivateScroller Scroller; Privatecontext Context; Private intwidth; Private intheight; PrivateImageView ImageView; Private intMlastdowny = 0; Private intMcurryy; Private intmdely; Private BooleanMcloseflag =false;  PublicMain_skip (Context context, AttributeSet attrs) {Super(context, attrs);  This. Context =context;    Initview (); }        Private voidInitview () {//This interpolator you can set something else I chose here is a bounce effect interpolatorBounceinterpolator interpolator =NewBounceinterpolator (); Scroller=NewScroller (Context,interpolator); WindowManager Manager=(WindowManager) context. Getsystemservice (Context.window_service); Displaymetrics Metrics=NewDisplaymetrics ();        Manager.getdefaultdisplay (). Getmetrics (metrics); Width=Metrics.widthpixels; Height=Metrics.heightpixels; //Here you have to set a transparent background, otherwise it will affect you to see the underlying layout         This. SetBackgroundColor (Color.argb (0, 0, 0, 0)); ImageView=NewImageView (context); Layoutparams params=Newlayoutparams (layoutparams.match_parent, layoutparams.match_parent);        Imageview.setlayoutparams (params);        Imageview.setscaletype (SCALETYPE.FIT_XY);        Imageview.setimageresource (R.DRAWABLE.A);                    AddView (ImageView); }     Public voidSetbgimg (intResID)    {Imageview.setimageresource (ResID); }         Public voidsetbgimg (drawable drawable) {imageview.setimagedrawable (drawable); }        //push the door to the animation     Public voidSetanimation (intStarty,intDyintduration) {Scroller.startscroll (0, Starty, 0, dy, duration);    Invalidate (); } @Override Public Booleanontouchevent (Motionevent event) {Switch(Event.getaction ()) { CaseMotionEvent.ACTION_DOWN:mLastDownY= (int) event.gety (); System.err.println ("Action_down=" +mlastdowny); return true;  CaseMotionEvent.ACTION_MOVE:mCurryY= (int) event.gety (); System.err.println ("Action_move=" +mcurryy); Mdely= Mcurryy-Mlastdowny; if(Mdely < 0) {ScrollTo (0,-mdely); System.err.println ("-------------  " +mdely); }             Break;  CaseMotionEvent.ACTION_UP:mCurryY= (int) event.gety (); Mdely= Mcurryy-Mlastdowny; if(Mdely < 0){                if(Math.Abs (mdely) &GT;HEIGHT/2) {setanimation ( This. getscrolly (), height, 450); Mcloseflag=true; }Else{setanimation ( This. getscrolly (),- This. getscrolly (), 1000); }            }             Break; default:             Break; }        return Super. Ontouchevent (event); } @Override Public voidComputescroll () {if(Scroller.computescrolloffset ()) {ScrollTo (Scroller.getcurrx (), Scroller.getcurry ()); //don't forget to update the interfacepostinvalidate (); }Else {              if(mcloseflag) { This. setvisibility (View.gone); }         }        Super. Computescroll (); }}

Android Push Door effect