Android精灵动画用法实例
本文实例讲述了Android精灵动画用法。分享给大家供大家参考。具体如下：
ElaineAnimated.java文件如下：
packagenet.obviam.walking.model;
importandroid.graphics.Bitmap;
importandroid.graphics.Canvas;
importandroid.graphics.Paint;
importandroid.graphics.Rect;
publicclassElaineAnimated{
privatestaticfinalStringTAG=ElaineAnimated.class.getSimpleName();
privateBitmapbitmap;
//theanimationsequence
privateRectsourceRect;
//therectangletobedrawnfromtheanimationbitmap
privateintframeNr;
//numberofframesinanimation
privateintcurrentFrame;
//thecurrentframe
privatelongframeTicker;
//thetimeofthelastframeupdate
privateintframePeriod;
//millisecondsbetweeneachframe(1000/fps)
privateintspriteWidth;
//thewidthofthespritetocalculatethecutoutrectangle
privateintspriteHeight;
//theheightofthesprite
privateintx;
//theXcoordinateoftheobject(topleftoftheimage)
privateinty;
//theYcoordinateoftheobject(topleftoftheimage)
publicElaineAnimated(Bitmapbitmap,intx,inty,intwidth,intheight,intfps,intframeCount){
this.bitmap=bitmap;
this.x=x;
this.y=y;
currentFrame=0;
frameNr=frameCount;
spriteWidth=bitmap.getWidth()/frameCount;
spriteHeight=bitmap.getHeight();
sourceRect=newRect(0,0,spriteWidth,spriteHeight);
framePeriod=1000/fps;
frameTicker=0l;
}
publicBitmapgetBitmap(){
returnbitmap;
}
publicvoidsetBitmap(Bitmapbitmap){
this.bitmap=bitmap;
}
publicRectgetSourceRect(){
returnsourceRect;
}
publicvoidsetSourceRect(RectsourceRect){
this.sourceRect=sourceRect;
}
publicintgetFrameNr(){
returnframeNr;
}
publicvoidsetFrameNr(intframeNr){
this.frameNr=frameNr;
}
publicintgetCurrentFrame(){
returncurrentFrame;
}
publicvoidsetCurrentFrame(intcurrentFrame){
this.currentFrame=currentFrame;
}
publicintgetFramePeriod(){
returnframePeriod;
}
publicvoidsetFramePeriod(intframePeriod){
this.framePeriod=framePeriod;
}
publicintgetSpriteWidth(){
returnspriteWidth;
}
publicvoidsetSpriteWidth(intspriteWidth){
this.spriteWidth=spriteWidth;
}
publicintgetSpriteHeight(){
returnspriteHeight;
}
publicvoidsetSpriteHeight(intspriteHeight){
this.spriteHeight=spriteHeight;
}
publicintgetX(){
returnx;
}
publicvoidsetX(intx){
this.x=x;
}
publicintgetY(){
returny;
}
publicvoidsetY(inty){
this.y=y;
}
//theupdatemethodforElaine
publicvoidupdate(longgameTime){
if(gameTime>frameTicker+framePeriod){
frameTicker=gameTime;
//incrementtheframe
currentFrame++;
if(currentFrame>=frameNr){
currentFrame=0;
}
}
//definetherectangletocutoutsprite
this.sourceRect.left=currentFrame*spriteWidth;
this.sourceRect.right=this.sourceRect.left+spriteWidth;
}
//thedrawmethodwhichdrawsthecorrespondingframe
publicvoiddraw(Canvascanvas){
//wheretodrawthesprite
RectdestRect=newRect(getX(),getY(),getX()+spriteWidth,getY()+spriteHeight);
canvas.drawBitmap(bitmap,sourceRect,destRect,null);
canvas.drawBitmap(bitmap,20,150,null);
Paintpaint=newPaint();
paint.setARGB(50,0,255,0);
canvas.drawRect(20+(currentFrame*destRect.width()),150,20+(currentFrame*destRect.width())+destRect.width(),150+destRect.height(),paint);
}
}
希望本文所述对大家的Android程序设计有所帮助。