文章标题

   

   

import android.content.Context;  

import android.graphics.drawable.Drawable;  

import android.view.LayoutInflater;  

import android.view.View;  

import android.view.ViewGroup;  

import android.widget.BaseAdapter;  

import android.widget.Button;  

import android.widget.ImageView;  

import android.widget.LinearLayout;  

/* 

  商品列表Adapter 

  @author antkingwei 

  

 */  

public class GoodAdapter extends BaseAdapter{  

    private Context mContext;  

    private LayoutInflater layoutInflater;  

    private HolderClickListener mHolderClickListener;  

    final class ViewHolder {  

        ImageView imgview;  

        Button button;  

    }  

    public GoodAdapter(Context context){  

        this.mContext = context;  

        layoutInflater = LayoutInflater.from(mContext);  

    }  

   

       

    @Override  

    public int getCount() {  

        // TODO Auto-generated method stub  

        return 16;  

    }  

   

    @Override  

    public Object getItem(int position) {  

        // TODO Auto-generated method stub  

        return null;  

    }  

   

    @Override  

    public long getItemId(int position) {  

        // TODO Auto-generated method stub  

        return position;  

    }  

   

    @Override  

    public View getView(int position, View convertView, ViewGroup parent) {  

        // TODO Auto-generated method stub  

        final int selectedId = position;  

        final ViewHolder viewHolder;  

        if(convertView ==null){  

            viewHolder = new ViewHolder();  

            convertView = layoutInflater.inflate(R.layout.adapter_listview, null);  

            viewHolder.imgview = (ImageView)convertView.findViewById(R.id.item_img);  

            viewHolder.button = (Button)convertView.findViewById(R.id.item_button);  

            convertView.setTag(viewHolder);  

        }else{  

            viewHolder =(ViewHolder)convertView.getTag();  

        }  

        viewHolder.button.setOnClickListener(new View.OnClickListener() {  

               

            @Override  

            public void onClick(View v) {  

                // TODO Auto-generated method stub  

                if(mHolderClickListener!=null){  

                    int[] start_location = new int[2];  

                    viewHolder.imgview.getLocationInWindow(start_location);//获取点击商品图片的位置  

                    Drawable drawable = viewHolder.imgview.getDrawable();//复制一个新的商品图标  

                    mHolderClickListener.onHolderClick(drawable,start_location);  

                }  

            }  

        });  

        return convertView;  

    }  

    public void SetOnSetHolderClickListener(HolderClickListener holderClickListener){  

        this.mHolderClickListener = holderClickListener;  

    }  

    public interface HolderClickListener{  

        public void onHolderClick(Drawable drawable,int[] start_location);  

    }  

   

}  

package com.example.addshopcart;  

import com.example.addshopcart.GoodAdapter.HolderClickListener;  

import android.os.Bundle;  

import android.os.Handler;  

import android.os.Message;  

import android.app.Activity;  

import android.content.Context;  

import android.graphics.drawable.Drawable;  

import android.view.Menu;  

import android.view.View;  

import android.view.ViewGroup;  

import android.view.animation.Animation;  

import android.view.animation.Animation.AnimationListener;  

import android.view.animation.AnimationSet;  

import android.view.animation.RotateAnimation;  

import android.view.animation.ScaleAnimation;  

import android.view.animation.TranslateAnimation;  

import android.widget.Button;  

import android.widget.FrameLayout;  

import android.widget.ImageView;  

import android.widget.ListView;  

/ 

   

  @author antkingwei 

  

 /  

public class MainActivity extends Activity {  

    private ListView listView;  

    private Button cart_btn;  

    private GoodAdapter goodAdapter;  

    //动画时间  

    private int AnimationDuration = 1000;  

    //正在执行的动画数量  

    private int number = 0;  

    //是否完成清理  

    private boolean isClean = false;  

    private FrameLayout animation_viewGroup;  

    private Handler myHandler = new Handler(){  

      public void handleMessage(Message msg){  

          switch(msg.what){  

          case 0:  

              //用来清除动画后留下的垃圾  

              try{  

                  animation_viewGroup.removeAllViews();  

                  }catch(Exception e){  

                         

                  }  

                           

                  isClean = false;  

                     

              break;  

           default:  

                  break;  

          }  

      }  

    };  

    @Override  

    protected void onCreate(Bundle savedInstanceState) {  

        super.onCreate(savedInstanceState);  

        setContentView(R.layout.activity_main);  

        listView = (ListView)this.findViewById(R.id.listview);  

        cart_btn = (Button)this.findViewById(R.id.button);  

        animation_viewGroup = createAnimLayout();  

        goodAdapter = new GoodAdapter(this);  

        goodAdapter.SetOnSetHolderClickListener(new HolderClickListener(){  

   

            @Override  

            public void onHolderClick(Drawable drawable,int[] start_location) {  

                // TODO Auto-generated method stub  

                 doAnim(drawable,start_location);  

                         

                   

            }  

               

        });  

        listView.setAdapter(goodAdapter);  

    }  

       

    private void doAnim(Drawable drawable,int[] start_location){  

        if(!isClean){  

            setAnim(drawable,start_location);  

        }else{  

            try{  

              animation_viewGroup.removeAllViews();  

              isClean = false;  

              setAnim(drawable,start_location);  

            }catch(Exception e){  

                e.printStackTrace();  

            }  

            finally{  

                isClean = true;  

            }  

        }  

    }  

    / 

      @Description: 创建动画层 

      @param 

      @return void 

      @throws 

     /  

    private FrameLayout createAnimLayout(){  

        ViewGroup rootView = (ViewGroup)this.getWindow().getDecorView();  

        FrameLayout animLayout = new FrameLayout(this);  

        FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT,FrameLayout.LayoutParams.MATCH_PARENT);  

        animLayout.setLayoutParams(lp);  

        animLayout.setBackgroundResource(android.R.color.transparent);  

        rootView.addView(animLayout);  

        return animLayout;  

           

    }  

   

    / 

      @deprecated 将要执行动画的view 添加到动画层 

      @param vg 

             动画运行的层 这里是frameLayout 

      @param view 

             要运行动画的View 

      @param location 

             动画的起始位置 

      @return 

     /  

    private View addViewToAnimLayout(ViewGroup vg,View view,int[] location){  

        int x = location[0];  

        int y = location[1];  

        vg.addView(view);  

        FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(  

                dip2px(this,90),dip2px(this,90));  

        lp.leftMargin = x;  

        lp.topMargin = y;  

        view.setPadding(5, 5, 5, 5);  

        view.setLayoutParams(lp);  

           

        return view;  

    }  

    / 

      dip，dp转化成px 用来处理不同分辨路的屏幕 

      @param context 

      @param dpValue 

      @return 

     /  

    private int dip2px(Context context,float dpValue){  

        float scale = context.getResources().getDisplayMetrics().density;  

        return (int)(dpValue*scale +0.5f);  

    }  

       

   / 

     动画效果设置 

     @param drawable 

           将要加入购物车的商品 

     @param start_location 

            起始位置 

    /  

   private void setAnim(Drawable drawable,int[] start_location){  

         

         

       Animation mScaleAnimation = new ScaleAnimation(1.5f,0.0f,1.5f,0.0f,Animation.RELATIVE_TO_SELF,0.1f,Animation.RELATIVE_TO_SELF,0.1f);  

       mScaleAnimation.setDuration(AnimationDuration);  

       mScaleAnimation.setFillAfter(true);  

          

   

       final ImageView iview = new ImageView(this);  

       iview.setImageDrawable(drawable);  

       final View view = addViewToAnimLayout(animation_viewGroup,iview,start_location);  

       view.setAlpha(0.6f);  

          

       int[] end_location = new int[2];  

       cart_btn.getLocationInWindow(end_location);  

       int endX = end_location[0];  

       int endY = end_location[1]-start_location[1];  

          

       Animation mTranslateAnimation = new TranslateAnimation(0,endX,0,endY);  

       Animation mRotateAnimation = new RotateAnimation(0, 180, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);  

       mRotateAnimation.setDuration(AnimationDuration);  

       mTranslateAnimation.setDuration(AnimationDuration);  

       AnimationSet mAnimationSet = new AnimationSet(true);  

   

       mAnimationSet.setFillAfter(true);  

       mAnimationSet.addAnimation(mRotateAnimation);  

       mAnimationSet.addAnimation(mScaleAnimation);  

       mAnimationSet.addAnimation(mTranslateAnimation);  

          

       mAnimationSet.setAnimationListener(new AnimationListener(){  

           

        @Override  

        public void onAnimationStart(Animation animation) {  

            // TODO Auto-generated method stub  

            number++;  

        }  

   

        @Override  

        public void onAnimationEnd(Animation animation) {  

            // TODO Auto-generated method stub  

             

            number–;  

            if(number==0){  

                isClean = true;  

                myHandler.sendEmptyMessage(0);  

            }  

               

        }  

   

        @Override  

        public void onAnimationRepeat(Animation animation) {  

            // TODO Auto-generated method stub  

               

        }  

              

       });  

       view.startAnimation(mAnimationSet);  

         

   }  

   / 

     内存过低时及时处理动画产生的未处理冗余 

    */  

    @Override  

   public void onLowMemory() {  

    // TODO Auto-generated method stub  

        isClean = true;  

        try{  

            animation_viewGroup.removeAllViews();  

        }catch(Exception e){  

            e.printStackTrace();  

        }  

        isClean = false;  

     super.onLowMemory();  

   }  

       

    @Override  

    public boolean onCreateOptionsMenu(Menu menu) {  

        // Inflate the menu; this adds items to the action bar if it is present.  

        getMenuInflater().inflate(R.menu.main, menu);  

        return true;  

    }  

   

}