Android中GridView插件的使用方法

布局文件activity_main.xml

<RelativeLayout 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=".MainActivity" >
 <GridView
   android:id="@+id/gridView"
   android:layout_width="fill_parent"
   android:layout_height="fill_parent"
   android:layout_marginTop="16dp"
   android:numColumns="4"
   android:stretchMode="columnWidth" >
 </GridView>
</RelativeLayout>

gridview_item.xml

这个是一个item的单元格样式的，有图片和文字

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:orientation="vertical" >
 <ImageView
   android:id="@+id/image"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:paddingLeft="10dp"
   android:scaleType="fitCenter"
   android:src="@drawable/ic_launcher" />
 <TextView
   android:id="@+id/textView"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:layout_gravity="center"
   android:text="TextView" />
</LinearLayout>

MainActivity.java

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.app.Activity;
import android.os.Bundle;
import android.widget.GridView;
public class MainActivity extends Activity {
 private GridView gridView;
 private GridViewAdapter adapter;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.activity_main);
   // 设置适配器的图片资源
   int[] imageId = new int[] { R.drawable.chat_tool_camera,
       R.drawable.chat_tool_location, R.drawable.chat_tool_paint,
       R.drawable.chat_tool_video, R.drawable.chat_tool_voice,
       R.drawable.chat_tool_camera, R.drawable.chat_tool_location,
       R.drawable.chat_tool_paint, R.drawable.chat_tool_video,
       R.drawable.chat_tool_voice, R.drawable.chat_tool_camera,
       R.drawable.chat_tool_location, R.drawable.chat_tool_paint,
       R.drawable.chat_tool_video, R.drawable.chat_tool_voice,
       R.drawable.chat_tool_camera, R.drawable.chat_tool_location,
       R.drawable.chat_tool_paint, R.drawable.chat_tool_video,
       R.drawable.chat_tool_voice };
   // 设置标题
   String[] title = new String[] { "相机", "定位", "画笔", "视频", "声音", "相机",
       "定位", "画笔", "视频", "声音", "相机", "定位", "画笔", "视频", "声音", "相机",
       "定位", "画笔", "视频", "声音" };
   List<Map<String, Object>> listitem = new ArrayList<Map<String, Object>>();
   // 将上述资源转化为list集合
   for (int i = 0; i < title.length; i++) {
     Map<String, Object> map = new HashMap<String, Object>();
     map.put("image", imageId[i]);
     map.put("title", title[i]);
     listitem.add(map);
   }
   adapter = new GridViewAdapter(MainActivity.this, listitem);
   gridView = (GridView) this.findViewById(R.id.gridView);
   gridView.setAdapter(adapter);
 }
}

GridViewAdapter.java

这个是适配器

import java.util.List;
import java.util.Map;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
public class GridViewAdapter extends BaseAdapter {
 private Context context;
 private List<Map<String, Object>> listitem;
 public GridViewAdapter(Context context,List<Map<String, Object>> listitem) {
   this.context = context;
   this.listitem = listitem;
 }
 @Override
 public int getCount() {
   return listitem.size();
 }
 @Override
 public Object getItem(int position) {
   return listitem.get(position);
 }
 @Override
 public long getItemId(int position) {
   return position;
 }
 @Override
 public View getView(int position, View convertView, ViewGroup parent) {
   if (convertView == null) {
     convertView = LayoutInflater.from(context).inflate(R.layout.gridview_item, null);
   }
   ImageView imageView = (ImageView) convertView.findViewById(R.id.image);
   TextView textView = (TextView) convertView.findViewById(R.id.textView);
   Map<String, Object> map = listitem.get(position);
   imageView.setImageResource((Integer) map.get("image"));
   textView.setText(map.get("title") + "");
   return convertView;
 }
}

效果图如下：

来源：https://blog.csdn.net/xlgen157387/article/details/45824433