ceil.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <ImageView android:layout_width="100dp" android:layout_height="75dp" android:id="@+id/image"/> </LinearLayout> package com.example.gridview; import android.content.Context; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.GridView; import android.widget.ImageView; import android.widget.SimpleAdapter; import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; public class MainActivity extends AppCompatActivity { private int[] picture=new int[]{ R.drawable.ck,R.drawable.giao3,R.drawable.giao6,R.drawable.giao7,R.drawable.giao8,R.drawable.giao10, R.drawable.giao11,R.drawable.qiaobiluo,R.drawable.yaoshuige}; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); GridView gridView=findViewById(R.id.gridview); gridView.setAdapter(new ImageAdapter(this)); /*List<Map<String,Object>> listitem=new ArrayList<Map<String,Object>>(); for(int i=0;i<picture.length;i++) { Map<String,Object> map=new HashMap<String,Object>(); map.put("image",picture[i]); listitem.add(map); } SimpleAdapter simpleAdapter=new SimpleAdapter(this,listitem,R.layout.ceil,new String[]{"image"} ,new int[]{R.id.image}); gridView.setAdapter(simpleAdapter);*/ } public class ImageAdapter extends BaseAdapter { private Context mContext; public ImageAdapter(Context c) { mContext=c; } @Override public int getCount() { return picture.length; } @Override public Object getItem(int position) { return null; } @Override public long getItemId(int position) { return 0; } @Override public View getView(int position, View convertView, ViewGroup parent) { ImageView imageView; if(convertView==null) { imageView=new ImageView(mContext); imageView.setLayoutParams(new ViewGroup.LayoutParams(100,90)); imageView.setScaleType(ImageView.ScaleType.CENTER_CROP); } else { imageView=(ImageView)convertView; } imageView.setImageResource(picture[position]); return imageView; } } }