Android to achieve text scrolling effect _android

Android to achieve text scrolling effect, I wrote a timer small timer, TextView text up and down effect:

public class Autotextview extends Textswitcher implements Viewswitcher.viewfactory {private float mheight;
 Private context Mcontext;
 Minup,moutup respectively constitute a downward page of the animation private rotate3danimation minup;
 
 Private Rotate3danimation Moutup;
 Mindown,moutdown respectively constitute a downward page of the animation private rotate3danimation Mindown;
 
 Private Rotate3danimation Moutdown;
  Public Autotextview {This (context, NULL); TODO auto-generated Constructor stub} public Autotextview (context, AttributeSet attrs) {Super (context, a
  TTRS);
  TODO auto-generated constructor stub TypedArray a = Context.obtainstyledattributes (Attrs, r.styleable.auto3d);
  Mheight = A.getdimension (r.styleable.auto3d_textsize, 16);
  A.recycle ();
  Mcontext = context;
 Init ();
  private void Init () {//TODO auto-generated Method stub setfactory (this);
  Minup = Createanim ( -90, 0, True, true);
  Moutup = Createanim (0, N, False, True);
  Mindown = Createanim (0, True, false); Moutdown = CREAteanim (0, -90, false, false);
  Textswitcher is mainly used for file switching, such as switching from text A to text B,//setinanimation (), a will perform inanimation,//setoutanimation (), and B will execute outanimation
  Setinanimation (Minup);
 Setoutanimation (Moutup); Private rotate3danimation Createanim (float start, float end, Boolean turnin, Boolean turnup) {final Rotate3danimati
  On rotation = new Rotate3danimation (start, End, Turnin, turnup);
  Rotation.setduration (800);
  Rotation.setfillafter (FALSE);
  Rotation.setinterpolator (New Accelerateinterpolator ());
 return rotation; }//The TextView returned here is what we see View @Override public view Makeview () {//TODO auto-generated method stub TextView t = N
  EW TextView (Mcontext);
  T.setgravity (Gravity.center);
  T.settextsize (16);
  T.setmaxlines (1);
  T.settextcolor (Mcontext.getresources (). GetColor (R.color.textcolor));
 return t;
  }//define action, scroll down page public void Previous () {if (Getinanimation ()!= mindown) {setinanimation (Mindown); } if (Getoutanimation ()!= moutdown) {setoutanimation (MOutdown);
  }//define action, scroll up page public void next () {if (Getinanimation ()!= minup) {setinanimation (minup);
  } if (Getoutanimation ()!= moutup) {setoutanimation (moutup);
   } class Rotate3danimation extends Animation {private final float mfromdegrees;
   Private final float mtodegrees;
   private float Mcenterx;
   private float mcentery;
   Private Final Boolean mturnin;
   Private Final Boolean mturnup;

   Private Camera Mcamera; Public rotate3danimation (float fromdegrees, float todegrees, Boolean turnin, Boolean turnup) {mfromdegrees = Fromdegr
    Ees
    Mtodegrees = todegrees;
    Mturnin = Turnin;
   Mturnup = Turnup; @Override public void Initialize (int width, int height, int parentwidth, int parentheight) {super.initialize
    (width, height, parentwidth, parentheight);
    Mcamera = new Camera ();
    Mcentery = GetHeight ()/2;
   Mcenterx = GetWidth ()/2; @Override protected void applytransformation (float interpolatedtime, Transformation T) {final float fromdegrees = mfromdegrees;

    Float degrees = fromdegrees + ((mtodegrees-fromdegrees) * interpolatedtime);
    Final float CenterX = Mcenterx;
    Final float centery = mcentery;
    Final Camera Camera = Mcamera; Final int derection = Mturnup?

    1:-1;

    Final Matrix matrix = T.getmatrix ();
    Camera.save ();
    if (mturnin) {camera.translate (0.0f, derection *mcentery * (interpolatedtime-1.0f), 0.0f);
    else {camera.translate (0.0f, derection *mcentery * (interpolatedtime), 0.0f);
    } camera.rotatex (degrees);
    Camera.getmatrix (matrix);

    Camera.restore ();
    Matrix.pretranslate (-centerx,-centery);
   Matrix.posttranslate (CenterX, centery);
 }
 }

Demo Download Link: Http://xiazai.jb51.net/201611/yuanma/AndroidTextView (jb51.net). rar

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