<?xml version="1.0" encoding="utf-8"?> <LinearLayout 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="com.hanqi.testapp2.TestActivity10"> <GridView android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/gv_1" android:numColumns="4" android:stretchMode="columnWidth" android:gravity="center" android:horizontalSpacing="30dp"></GridView> </LinearLayout>
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 TestActivity10 extends AppCompatActivity { 15 16 GridView gv_1; 17 18 List<Integer> liv; 19 20 @Override 21 protected void onCreate(Bundle savedInstanceState) { 22 super.onCreate(savedInstanceState); 23 setContentView(R.layout.activity_test10); 24 25 gv_1 = (GridView)findViewById(R.id.gv_1); 26 27 //1、数据 28 liv = new ArrayList<>(); 29 liv.add(R.drawable.f1); 30 liv.add(R.drawable.f2); 31 liv.add(R.drawable.f3); 32 liv.add(R.drawable.f4); 33 liv.add(R.drawable.f5); 34 liv.add(R.drawable.f6); 35 liv.add(R.drawable.f7); 36 liv.add(R.drawable.f8); 37 38 gv_1.setAdapter(new ImageAdapter()); 39 } 40 41 //适配器 42 class ImageAdapter extends BaseAdapter 43 { 44 @Override 45 public int getCount() { 46 return liv.size(); 47 } 48 49 @Override 50 public Object getItem(int position) { 51 return liv.get(position); 52 } 53 54 @Override 55 public long getItemId(int position) { 56 return 0; 57 } 58 59 @Override 60 public View getView(int position, View convertView, ViewGroup parent) { 61 62 //1、得到数据 图片的id 63 Integer ivid = liv.get(position); 64 65 //2、准备View 66 if (convertView == null) { 67 convertView = new ImageView(TestActivity10.this); 68 } 69 70 //3、适配 71 //转换 72 ImageView imageView = (ImageView)convertView; 73 74 imageView.setImageResource(ivid); 75 76 // imageView.setMaxWidth(70); 77 // imageView.setMaxHeight(70); 78 79 imageView.setLayoutParams(new GridView.LayoutParams(110,110)); 80 81 return imageView; 82 } 83 } 84 }
