Android GridView实现动画效果实现代码

package com.mundane.gridanimationdemo;  import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.view.animation.Animation; import android.view.animation.TranslateAnimation; import android.widget.Button; import android.widget.GridView;  import java.util.ArrayList; import java.util.List;  public class MainActivity extends AppCompatActivity {    private GridView mGridView;   private List<String> mList;   private GridAdapter mGridAdapter;   private Button mBtnRefresh;    @Override   protected void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     setContentView(R.layout.activity_main);     mGridView = (GridView) findViewById(R.id.grid_view);     mBtnRefresh = (Button) findViewById(R.id.btn_refresh);     mBtnRefresh.setOnClickListener(new View.OnClickListener() {       @Override       public void onClick(View v) {         mBtnRefresh.setVisibility(View.INVISIBLE);         mGridAdapter.notifyDataSetChanged();       }     });     mList = new ArrayList<>();     for (int i = 0; i < 9; i++) {       mList.add(i + "");     }     mGridAdapter = new GridAdapter(mList);     final TranslateAnimation animation = new TranslateAnimation(         Animation.RELATIVE_TO_PARENT,         1.0f,         Animation.RELATIVE_TO_PARENT,         0,         Animation.RELATIVE_TO_SELF,         0,         Animation.RELATIVE_TO_SELF,         0);     animation.setDuration(200);     animation.setAnimationListener(new Animation.AnimationListener() {       @Override       public void onAnimationStart(Animation animation) {         mBtnRefresh.setVisibility(View.VISIBLE);       }        @Override       public void onAnimationEnd(Animation animation) {        }        @Override       public void onAnimationRepeat(Animation animation) {        }     });     mGridAdapter.setOnLastItemAnimationEndListener(new GridAdapter.OnLastItemAnimationEndListener() {       @Override       public void onAnimationEnd() {         mBtnRefresh.startAnimation(animation);       }     });     mGridView.setAdapter(mGridAdapter);    } } 

package com.mundane.gridanimationdemo;  import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.animation.Animation; import android.view.animation.TranslateAnimation; import android.widget.BaseAdapter; import android.widget.TextView;  import java.util.List;  /**  * Created by Jackie on 2017/3/7 16:29  */  public class GridAdapter extends BaseAdapter{   private List<String> mList;    public GridAdapter(List<String> list) {     mList = list;   }    @Override   public int getCount() {     return mList.size();   }    @Override   public Object getItem(int position) {     return mList.get(position);   }    @Override   public long getItemId(int position) {     return position;   }    @Override   public View getView(final int position, View convertView, ViewGroup parent) {     String text = mList.get(position);     ViewHolder holder;     if (convertView == null) {       convertView = LayoutInflater.from(parent.getContext()).inflate(R.layout.card_desk_grid_item, parent, false);       holder = new ViewHolder(convertView);       convertView.setTag(holder);     } else {       holder = (ViewHolder) convertView.getTag();     }     convertView.setVisibility(View.INVISIBLE);     holder.textView.setText(text);     int count = 3 - position % 3;     final TranslateAnimation translateAnimation = new TranslateAnimation(         Animation.RELATIVE_TO_SELF,         count,         Animation.RELATIVE_TO_SELF,         0,         Animation.RELATIVE_TO_SELF,         0,         Animation.RELATIVE_TO_SELF,         0);     translateAnimation.setDuration(count* 100); //   final Animation animation = AnimationUtils.loadAnimation(parent.getContext(), R.anim.slide_in_right);     final View finalConvertView = convertView;     convertView.postDelayed(new Runnable() {       @Override       public void run() {         finalConvertView.startAnimation(translateAnimation);       }     }, position * 200);     translateAnimation.setAnimationListener(new Animation.AnimationListener() {       @Override       public void onAnimationStart(Animation animation) {         finalConvertView.setVisibility(View.VISIBLE);       }        @Override       public void onAnimationEnd(Animation animation) {         if (position == mList.size() - 1) {           if (mListener != null) {             mListener.onAnimationEnd();           }         }       }        @Override       public void onAnimationRepeat(Animation animation) {        }     });      return convertView;   }    static class ViewHolder {     TextView textView;          public ViewHolder(View view) {       textView = (TextView) view.findViewById(R.id.tv);     }   }    public interface OnLastItemAnimationEndListener {     void onAnimationEnd();   }    private OnLastItemAnimationEndListener mListener;    public void setOnLastItemAnimationEndListener(OnLastItemAnimationEndListener listener) {     mListener = listener;   } } 

<?xml version="1.0" encoding="utf-8"?> <LinearLayout   xmlns:android="http://schemas.android.com/apk/res/android"   xmlns:app="http://schemas.android.com/apk/res-auto"   xmlns:tools="http://schemas.android.com/tools"   android:layout_width="match_parent"   android:layout_height="match_parent"   android:orientation="vertical"   tools:context="com.mundane.gridanimationdemo.MainActivity">    <Button     android:visibility="invisible"     android:id="@+id/btn_refresh"     android:layout_width="match_parent"     android:layout_height="wrap_content"     android:text="刷新"/>    <GridView     android:layout_marginLeft="10dp"     android:layout_marginRight="10dp"     android:layout_marginTop="10dp"     android:stretchMode="columnWidth"     android:id="@+id/grid_view"     android:layout_width="match_parent"     android:layout_height="0dp"     android:layout_weight="1"     android:background="#f6f6f6"     android:horizontalSpacing="10dp"     android:numColumns="3"     android:scrollbars="none"     android:verticalSpacing="10dp">    </GridView>   </LinearLayout> 

<?xml version="1.0" encoding="utf-8"?> <LinearLayout   xmlns:android="http://schemas.android.com/apk/res/android"   android:background="#33000000"   android:layout_width="match_parent"   android:layout_height="156dp">   <TextView     android:id="@+id/tv"     android:gravity="center"     android:layout_width="match_parent"     android:layout_height="match_parent"/> </LinearLayout>