Android-Widget炫酷特效 (宏基扇子型效果).zip

package com.canvas.demo.view; import java.util.ArrayList; import java.util.List; import android.content.Context; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Paint; import com.canvas.demo.AnimationConfig; import com.canvas.demo.R; import com.canvas.demo.anim.CloseAppAnimation; import com.canvas.demo.anim.NextAnimation; import com.canvas.demo.anim.NextJitterAnimation; import com.canvas.demo.anim.OpenAppAnimation; import com.canvas.demo.anim.PrevAnimation; import com.canvas.demo.anim.PrevJitterAnimation; import com.canvas.demo.anim.RendererAnimation; import com.canvas.demo.anim.RendererAnimation.AnimationNotification; import com.canvas.demo.surface.RendererView; import com.canvas.demo.util.CanvasUtil; public class NavigationRendererView extends RendererView implements AnimationNotification { private RendererAnimation mAnimation = null; private int mFirstItemIndex = 0; private int mCurrentIndex = 0; private int mLastItemIndex = 0; private List<NavigationItemView> mShowItems = new ArrayList<NavigationItemView>(AnimationConfig.SHOW_ITEM_COUNT) ; private List<NavigationItemView> mAllItems = new ArrayList<NavigationItemView>() ; private Bitmap mNavigationTitleBackground = null; public NavigationRendererView(Context context) { super(context); mNavigationTitleBackground = BitmapFactory.decodeResource(getResources(),R.drawable.navigation_title_bg); } public void addNavigationItem(NavigationItem item) { mAllItems.add(new NavigationItemView(item)); } public void doAnimation(RendererAnimation animation) { if(mShowItems.size() < 11) { mShowItems.clear(); for(int i=0;i< 11;i++) { int index = i % mAllItems.size(); NavigationItemView item = mAllItems.get(index); item.setPosition(index); mShowItems.add(item); } mFirstItemIndex = 0; mCurrentIndex = mShowItems.size() / 2; mLastItemIndex = mShowItems.size() - 1; } if(animation.getClass() == OpenAppAnimation.class) { NavigationItemView item = mAllItems.get(mCurrentIndex); ((OpenAppAnimation)animation).setItemSize(item.getWidth(), item.getHeight()); }else if(animation.getClass() == CloseAppAnimation.class){ NavigationItemView item = mAllItems.get(mCurrentIndex); ((CloseAppAnimation)animation).setItemSize(item.getWidth(), item.getHeight()); } mAnimation = animation; mAnimation.setAnimationNotification(this); this.startRenderer(); } protected void onRenderer(Canvas canvas) { if(mAnimation == null) return; int saveCount = canvas.save(); //转换坐标 canvas.translate(0, getHeight() / 2.0f); //绘制标题背景 drawTitleBackground(canvas); //绘制上半部分 for(int index = 0;index < mCurrentIndex;index++) { mShowItems.get(index).draw(canvas, mAnimation); } //绘制下半部分 for(int index = mShowItems.size() - 1;index > mCurrentIndex;index--) { mShowItems.get(index).draw(canvas, mAnimation); } //绘制选中部分 mShowItems.get(mCurrentIndex).draw(canvas, mAnimation); //还原Canvas canvas.restoreToCount(saveCount); if(mAnimation.isEnd()) { this.stopRenderer(); }else{ mAnimation.nextFrame(); } } //----------------------绘制标题---------------------------------- private Paint mTitleBackgroundPaint = new Paint(); private void drawTitleBackground(Canvas canvas) { int saveCount = canvas.save(); mTitleBackgroundPaint.setAlpha(mAnimation.getTitleBackgroundAlpha()); canvas.translate(AnimationConfig.TITLE_LEFT, 0); CanvasUtil.drawImage(canvas, mNavigationTitleBackground, 0, 0, CanvasUtil.LEFT | CanvasUtil.VCENTER, mTitleBackgroundPaint); canvas.restoreToCount(saveCount); } //-------------------------End------------------------------------ public void doAnimation(RendererAnimation animation, int step, int maxStep) { if(animation.getClass() == NextAnimation.class){ if(step == maxStep / 2 + 1) { mShowItems.remove(mShowItems.size() - 1); mCurrentIndex --; }else if(step == maxStep){ mFirstItemIndex = ( mFirstItemIndex -1 + mAllItems.size() ) % mAllItems.size(); mLastItemIndex = ( mLastItemIndex -1 + mAllItems.size() ) % mAllItems.size(); mShowItems.add(0, mAllItems.get(mFirstItemIndex)); mCurrentIndex = mShowItems.size() / 2; for(int i=0;i< mShowItems.size();i++) { mShowItems.get(i).setPosition(i); } this.doAnimation(new NextJitterAnimation()); } }else if(animation.getClass() == PrevAnimation.class){ if(step == maxStep / 2) { mShowItems.remove(0); }else if(step == maxStep){ mFirstItemIndex = ( mFirstItemIndex + 1 ) % mAllItems.size(); mLastItemIndex = ( mLastItemIndex + 1 ) % mAllItems.size(); mShowItems.add(mAllItems.get(mLastItemIndex)); mCurrentIndex = mShowItems.size() / 2; for(int i=0;i< mShowItems.size();i++) { mShowItems.get(i).setPosition(i); } this.doAnimation(new PrevJitterAnimation()); } } } }