Android phase 44th-Animation of the login screen

This is a little bit of a demand, but still do it, the effect is as follows, this time to talk about, a little complex, after their own estimates have forgotten, record a--!

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Animation class Animalutul:

public class animalutul {private animatorset manimatorset; relativelayout rl_parent;private imageview iv_logo;private float mlogoy;private  Context context;private long starttime = 1500;public long getstarttime ()  {return starttime;} Public void setstarttime (Long starttime)  {this.starttime = starttime;} Public animalutul (Context context, relativelayout layout, imageview logo)  { Iv_logo = logo;rl_parent = layout;this.context = context;iv_logo.postdelayed (New  runnable ()  {@Overridepublic  void run ()  {if  (mlogoy == 0)  {mlogoy  = viewhelper.gety (Iv_logo);} Playlogoinanim ();}}, starttime) iv_logo.postdelayed (new runnable ()  {@Overridepublic  void  run ()  {playinanim ();}}, starttime);} Public void playinanim ()  {Rl_parent.setvisibility (view.visible); Animatorset manimatorset;objectanimator anim3 = objectanimator.offloat (rl_parent,  "Y" , Displayutil.getdisplayheightpixels (context), displayutil.dip2px (context, 160));manimatorset =  New animatorset (); Manimatorset.play (ANIM3); manimatorset.setduration (+); Manimatorset.start ();} Private void playlogoinanim ()  {objectanimator anim1 = objectanimator.offloat (iv_ logo,  "ScaleX",  1.0f,0.5f); Objectanimator anim2 = objectanimator.offloat (Iv_logo,   "ScaleY",  1.0f,0.5f) objectanimator anim3 = objectanimator.offloat (iv_logo,  "Y") ,  mlogoy,displayutil.dip2px (context, 15));if  (manimatorset != null &&  manimatorset.isrunning ())  {manimatorset.cancel (); manimatorset = null;} Manimatorset = new animatorset (); Manimatorset.play (ANIM1). with (ANIM2); Manimatorset.play (ANIM2). With (ANIm3); manimatorset.setduration (+); Manimatorset.start ();}} 

     fit Screen height class Displayutil:

public class displayutil {    /**  Screen Width    */     private static int displaywidthpixels = 0;    /**   Screen Height    */    private static int displayheightpixels  = 0;    /**     *  Get screen parameters       *  @param  context     */    private static  void getdisplaymetrics (Context context)  {         Displaymetrics dm = new displaymetrics ();         ( (Activity)  context). Getwindowmanager (). Getdefaultdisplay (). Getmetrics (DM);         //  width         DisplayWidthPixels =  Dm.widthpixels;        //  Height          displayheightpixels = dm.heightpixels;    }    /**      *  Get screen width      *  @param  context      *  @return      */    public static  int getdisplaywidthpixels (Context context)  {         if  (context == null)  {             return -1;        }         if  (displaywidthpixels == 0)  {             getdisplaymetrics (context);         }         return displaywidthpixels;    }    /**      *  Get screen height      *  @param  context     *   @return      */    public static int  Getdisplayheightpixels (Context context)  {        if  ( Context == null)  {             return -1;        }         if  (displayheightpixels == 0)  {             getdisplaymetrics (context);        }         return DisplayheightPixels;    }     /**     *  Convert PX values to dip or DP values       *     *  @param   pxvalue     *  @return      */     Public static int px2dip (Context context, float pxvalue)  {         final float scale = context.getresources (). Getdisplaymetrics () .density;        return  (int)   (pxValue  / scale + 0.5f);    }    /**      *  convert dip or DP values to PX values       *     * @ param dipvalue     *  @return      */     PUBLIC STATIC INT DIP2PX (Context context, float dipvalue)  {         Final float scale = context.getresources (). Getdisplaymetrics () .density;         return  (int)   (dipvalue * scale + 0.5f);     }    /**     *  convert PX value to SP value        *     *  @param  pxValue      *  @return      */    public static int  PX2SP (Context context, float pxvalue)  {         Final float fontscale = context.getresources (). Getdisplaymetrics () .scaledDensity;         return  (int)   (pxvalue / fontscale +  0.5f);    }    /**     *  Convert SP value to PX value       *&nbSP; @param  spValue     *  @return      */     PUBLIC STATIC INT SP2PX (Context context, float spvalue)  {         final float fontscale = context.getresources (). Getdisplaymetrics () .scaleddensity;        return  (int)   ( spvalue * fontscale + 0.5f);     }}

Calling method: New Animalutul (This, the Layout,logo image that appears );

Oh ~ so tired ~ every day write these--!

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Android phase 44th-Animation of the login screen