android添加购物车动画实现
16lz
2021-01-26
商品列表Adapter
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); } } 活动类
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; } } activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context=".MainActivity" > <ListView android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/listview" ></ListView> <Button android:layout_alignBottom="@+id/listview" android:layout_centerHorizontal="true" android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/button" android:text="购物车" /> </RelativeLayout>
AdapterItem布局
<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" > <ImageView android:id="@+id/item_img" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/ic_launcher" android:layout_alignParentLeft="true" /> <Button android:id="@+id/item_button" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:text="添加" > </Button> </RelativeLayout>
转自：http://www.oschina.net/code/snippet_203635_27426
更多相关文章
- AdapterTest
- 简单的四种动画Demo
- Android--等待loading
- Android(安卓)ConstraintLayout Toolbar
- 自定义对话框 位置 大小等
- Google play pay 消耗商品 demo
- android——ObjectAnimator动画(一)
- SplashscreenActivity随笔
- Android中属性动画2----ObjectAnimator监听的使用