layout文件：

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     xmlns:tools="http://schemas.android.com/tools"
 4     android:layout_width="match_parent"
 5     android:layout_height="match_parent"
 6     android:paddingBottom="@dimen/activity_vertical_margin"
 7     android:paddingLeft="@dimen/activity_horizontal_margin"
 8     android:paddingRight="@dimen/activity_horizontal_margin"
 9     android:paddingTop="@dimen/activity_vertical_margin"
10     tools:context="com.hanqi.testapp2.TestActivity9">
11 
12     <GridView
13         android:layout_width="match_parent"
14         android:layout_height="match_parent"
15         android:id="@+id/gv_1"
16         android:numColumns="4"
17         android:stretchMode="columnWidth"
18         android:gravity="center"
19         android:horizontalSpacing="30dp"></GridView>
20 </LinearLayout>

java类：

 1 package com.hanqi.testapp2;
 2 
 3 import android.os.Bundle;
 4 import android.support.v7.app.AppCompatActivity;
 5 import android.view.View;
 6 import android.view.ViewGroup;
 7 import android.widget.BaseAdapter;
 8 import android.widget.GridView;
 9 import android.widget.ImageView;
10 
11 import java.util.ArrayList;
12 import java.util.List;
13 
14 public class TestActivity9 extends AppCompatActivity {
15 
16     GridView gv_1;
17     List<Integer> liv;
18     @Override
19     protected void onCreate(Bundle savedInstanceState) {
20         super.onCreate(savedInstanceState);
21         setContentView(R.layout.activity_test9);
22         gv_1 = (GridView)findViewById(R.id.gv_1);
23 
24         //1、数据 图片的id
25         liv = new ArrayList<>();
26         liv.add(R.drawable.f1);
27         liv.add(R.drawable.f2);
28         liv.add(R.drawable.f3);
29         liv.add(R.drawable.f4);
30         liv.add(R.drawable.f5);
31         liv.add(R.drawable.f6);
32         liv.add(R.drawable.f7);
33         liv.add(R.drawable.f8);
34         gv_1.setAdapter(new ImageAdapter());
35     }
36     //适配器
37     class ImageAdapter extends BaseAdapter
38     {
39         @Override
40         public int getCount() {
41             return liv.size();
42         }
43 
44         @Override
45         public Object getItem(int position) {
46             return liv.get(position);
47         }
48 
49         @Override
50         public long getItemId(int position) {
51             return 0;
52         }
53 
54         @Override
55         public View getView(int position, View convertView, ViewGroup parent) {
56             //1.得到数据 图片的id
57             Integer ivid = liv.get(position);
58             //2.准备View
59             if (convertView ==null) {
60                 convertView = new ImageView(TestActivity9.this);
61             }
62             //3.适配
63             //转换
64             ImageView imageView = (ImageView)convertView;
65             imageView.setImageResource(ivid);
66 
67             //imageView.setMaxHeight(70);
68             //imageView.setMaxWidth(70);
69 
70             imageView.setLayoutParams(new GridView.LayoutParams(110, 110));
71 
72             return imageView;
73         }
74     }
75 }

效果图为：