Android 4 animation Application 2

I wanted to write down all the animation applications of android4 before, and later I thought I wanted to talk about a set of videos for better learning by programmers, but I had never been able to do so due to time issues, some time ago, I recorded some videos and felt that the recorded results were not satisfactory. I personally felt that my presentation skills were in urgent need of improvement. After recording, I listened to the videos myself, that's bad, but it doesn't matter. I am confident that I can record it well and think that I want to record a free set of fully developed videos for androoid4, from underlying analysis to app launch. To be honest, I have been working for the company for a long time, and I have spent some time writing a few for myself, for example, the interview book for many difficult interviews, the book of life, personalized display and other apps, I have been in the market because of my own design problems. I still cannot tell the difference between business opportunities and preferences, during this period of time, I am still charging the design strictly. I don't know what the IT industry will become when I understand it. I will not talk about anything else, first, paste the previous Animation 2 and Sany, and only paste the core code. I will upload the Demo Video to the Youku: Upload:

This is the core code of cloning:

Package com. JSD. android4.cloning;

Import java. util. arraylist;

Import Android. animation. animatorset;
Import Android. animation. objectanimator;
Import Android. animation. valueanimator;
Import Android. animation. valueanimator. animatorupdatelistener;
Import Android. App. activity;
Import Android. content. context;
Import Android. Graphics. Canvas;
Import Android. Graphics. paint;
Import Android. Graphics. radialgradient;
Import Android. Graphics. shader;
Import Android. Graphics. drawable. shapedrawable;
Import Android. Graphics. drawable. shapes. ovalshape;
Import Android. OS. Bundle;
Import Android. View. view;
Import Android. View. animation. accelerateinterpolator;
Import Android. View. animation. decelerateinterpolator;
Import Android. widget. Button;
Import Android. widget. linearlayout;

Import com. JSD. android4.r;
Import com. JSD. android4.bouncing. shapeholder;

/**
*
* @ Author jankey
*
*/
Public class animcloningactivity extends activity {

@ Override
Protected void oncreate (bundle savedinstancestate ){
Super. oncreate (savedinstancestate );
Setcontentview (R. layout. anim_cloning );
Linearlayout Container = (linearlayout) findviewbyid (R. Id. Container );
Final myanimationview animview = new myanimationview (this );
Container. addview (animview );
Button starter = (button) findviewbyid (R. Id. startbutton );
Starter. setonclicklistener (New View. onclicklistener (){
@ Override
Public void onclick (view v ){
Animview. startanimation ();
}
});
}

Public class myanimationview extends view implements animatorupdatelistener {

Public final arraylist <shapeholder> bballs = new arraylist <shapeholder> ();
Animatorset animation = NULL;
Private float mdensity;

Public myanimationview (context ){
Super (context );
Mdensity = getcontext (). getresources (). getdisplaymetrics (). density;

Shapeholder ball0 = addball (50f, 25f );
Shapeholder ball1 = addball (150f, 25f );
Shapeholder ball2 = addball (250f, 25f );
Shapeholder ball3 = addball (350f, 25f );
Shapeholder ball4 = addball (effecf, 25f );
}

Private void createanimation (){
If (animation = NULL ){
Objectanimator animl = objectanimator. offloat (bils. get (0), "Y", 0f, getheight ()-bils. get (0 ). getheight ()). setduration (500 );
Objectanimator anim2 = animl. Clone ();
Anim2.settarget (bils. Get (1 ));
Animl. addupdatelistener (this );

Shapeholder ball2 = bils. Get (2 );
Objectanimator animdown = objectanimator. offloat (ball2, "Y", 0f, getheight ()-ball2.getheight (). setduration (500 );
Animdown. setinterpolator (New accelerateinterpolator ());
Objectanimator animup = objectanimator. offloat (ball2, "Y", 0f, getheight ()-ball2.getheight (), 0f). setduration (500 );
Animup. setinterpolator (New decelerateinterpolator ());
Animatorset S1 = new animatorset ();
S1.playsequentially (animdown, animup );
Animdown. addupdatelistener (this );
Animup. addupdatelistener (this );
Animatorset S2 = (animatorset) s1.clone ();
S2.settarget (bils. Get (3 ));

Animation = new animatorset ();
Animation. playtogether (animl, anim2, S1 );
Animation. playsequentially (S1, S2 );
}
}

Private shapeholder addball (float X, float y ){
Ovalshape Circle = new ovalshape ();
Circle. Resize (50f * mdensity, 50f * mdensity );
Shapedrawable drawable = new shapedrawable (circle );
Shapeholder = new shapeholder (drawable );
Shapeholder. setx (X-25f );
Shapeholder. sety (Y-25f );
Int Red = (INT) (100 + math. Random () * 155 );
Int Green = (INT) (10 + math. Random () * 155 );
Int Blue = (INT) (100 + math. Random () * 155 );
Int color = 0xff000000 | red <16 | green <8 | blue;
Paint paint = drawable. getpaint ();
Int darkcolor = 0xff000000 | red/4 <16 | green/4 <8 | blue/4;
Radialgradient gradient = new radialgradient (37.5f, 12.5f, 50f, color, darkcolor, shader. tilemode. Clamp );
Paint. setshader (gradient );
Shapeholder. setpaint (paint );
Bils. Add (shapeholder );
Return shapeholder;
}

@ Override
Protected void ondraw (canvas ){
For (INT I = 0; I <bils. Size (); ++ I ){
Shapeholder = bils. Get (I );
Canvas. Save ();
Canvas. Translate (shapeholder. getx (), shapeholder. Gety ());
Shapeholder. getshape (). Draw (canvas );
Canvas. Restore ();
}
}

Public void startanimation (){
Createanimation ();
Animation. Start ();
}

@ Override
Public void onanimationupdate (valueanimator animation ){
Invalidate ();
}
}
}

This is the core code of evalutor:

Package com. JSD. android4.evaluator;

Import java. util. arraylist;

Import Android. animation. objectanimator;
Import Android. animation. typeevaluator;
Import Android. animation. valueanimator;
Import Android. App. activity;
Import Android. content. context;
Import Android. Graphics. Canvas;
Import Android. Graphics. paint;
Import Android. Graphics. radialgradient;
Import Android. Graphics. shader;
Import Android. Graphics. drawable. shapedrawable;
Import Android. Graphics. drawable. shapes. ovalshape;
Import Android. OS. Bundle;
Import Android. View. view;
Import Android. widget. Button;
Import Android. widget. linearlayout;

Import com. JSD. android4.r;
Import com. JSD. android4.bouncing. shapeholder;

/**
*
* @ Author jankey
*
*/
Public class customevaluatoracti1_extends activity {

@ Override
Protected void oncreate (bundle savedinstancestate ){
Super. oncreate (savedinstancestate );
Setcontentview (R. layout. evaluator );
Initialized ();
}

Private void initialized (){
Linearlayout Container = (linearlayout) findviewbyid (R. Id. Container );
Final myanimationview animview = new myanimationview (this );
Container. addview (animview );
Button starter = (button) findviewbyid (R. Id. startto );
Starter. setonclicklistener (New View. onclicklistener (){
@ Override
Public void onclick (view v ){
Animview. startanimation ();
}
});
}

Public class xyholder {
Private float MX;
Private float my;

Public xyholder (float X, float y ){
MX = X;
My = y;
}

Public float getx (){
Return MX;
}

Public void setx (float X ){
MX = X;
}

Public float Gety (){
Return my;
}

Public void sety (float y ){
My = y;
}
}

Public class xyevaluator implements typeevaluator {
Public object evaluate (float fraction, object startvalue, object endvalue ){
Xyholder startxy = (xyholder) startvalue;
Xyholder endxy = (xyholder) endvalue;
Return new xyholder (startxy. getx () + fraction * (endxy. getx ()-startxy. getx ()),
Startxy. Gety () + fraction * (endxy. Gety ()-startxy. Gety ()));
}
}

Public class ballxyholder {

Private shapeholder mball;

Public ballxyholder (shapeholder ball ){
Mball = ball;
}

Public void setxy (xyholder ){
Mball. setx (xyholder. getx ());
Mball. sety (xyholder. Gety ());
}

Public xyholder getxy (){
Return new xyholder (mball. getx (), mball. Gety ());
}
}

Public class myanimationview extends view implements valueanimator. animatorupdatelistener {

Public final arraylist <shapeholder> bballs = new arraylist <shapeholder> ();
Valueanimator bounceanim = NULL;
Shapeholder ball = NULL;
Ballxyholder ballholder = NULL;

Public myanimationview (context ){
Super (context );
Ball = createball (25, 25 );
Ballholder = new ballxyholder (ball );
}

Private void createanimation (){
If (bounceanim = NULL ){
Xyholder startxy = new xyholder (0f, 0f );
Xyholder endxy = new xyholder (300f, 800f );
Bounceanim = objectanimator. ofobject (ballholder, "XY ",
New xyevaluator (), endxy );
Bounceanim. setduration (2000 );
Bounceanim. addupdatelistener (this );
}
}

Public void startanimation (){
Createanimation ();
Bounceanim. Start ();
}

Private shapeholder createball (float X, float y ){
Ovalshape Circle = new ovalshape ();
Circle. Resize (50f, 50f );
Shapedrawable drawable = new shapedrawable (circle );
Shapeholder = new shapeholder (drawable );
Shapeholder. setx (X-25f );
Shapeholder. sety (Y-25f );
Int Red = (INT) (math. Random () * 255 );
Int Green = (INT) (math. Random () * 255 );
Int Blue = (INT) (math. Random () * 255 );
Int color = 0xff000000 | red <16 | green <8 | blue;
Paint paint = drawable. getpaint (); // new paint (paint. anti_alias_flag );
Int darkcolor = 0xff000000 | red/4 <16 | green/4 <8 | blue/4;
Radialgradient gradient = new radialgradient (37.5f, 12.5f,
50f, color, darkcolor, shader. tilemode. Clamp );
Paint. setshader (gradient );
Shapeholder. setpaint (paint );
Return shapeholder;
}

@ Override
Protected void ondraw (canvas ){
Canvas. Save ();
Canvas. Translate (ball. getx (), ball. Gety ());
Ball. getshape (). Draw (canvas );
Canvas. Restore ();
}

Public void onanimationupdate (valueanimator animation ){
Invalidate ();
}

}
}

I will not post the res file. It is very simple. It is similar in the past. Below I will paste the running figure:

Well, the above is it. If you are interested, you can modify and integrate the source code to make better results .....