逐帧动画

frame.xml

package com.example.listview;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;

import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {
private List<Bean> data =new ArrayList<>();
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        for (int i = 0; i < 100; i++) {
            Bean bean = new Bean();
            bean.setName("想学"+i);
            data.add(bean);
        }
        ListView listView = findViewById(R.id.lv);
        listView.setAdapter(new MyAdapter(data,this));
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
                Log.e("leo", "onItemClick: "+i );
            }
        });
    }
}

MainActivity

package com.example.anim;

import androidx.appcompat.app.AppCompatActivity;

import android.annotation.SuppressLint;
import android.graphics.drawable.AnimationDrawable;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.view.View;
import android.widget.RelativeLayout;

public class MainActivity extends AppCompatActivity {
private boolean flag = true;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
         RelativeLayout relativeLayout = findViewById(R.id.r1);
        AnimationDrawable animationDrawable = (AnimationDrawable) relativeLayout.getBackground();
        relativeLayout.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if (flag){
                    animationDrawable.start();
                    flag=false;
                }
                else {
                    animationDrawable.stop();
                    flag=true;
                }
            }
        });
    }
}