<?xml version="1.0" encoding="utf-8"?><GridView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/gridview" android:layout_width="match_parent" android:layout_height="match_parent" android:verticalSpacing="10dp" android:horizontalSpacing="10dp" android:columnWidth="90dp" android:stretchMode="columnWidth" android:gravity="center" android:numColumns="3" />
grid.xml
<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_height="wrap_content" android:paddingBottom="4dip" android:layout_width="fill_parent"> <ImageView android:layout_height="wrap_content" android:id="@+id/ItemImage" android:layout_width="wrap_content" android:layout_centerHorizontal="true"> </ImageView> <TextView android:layout_width="wrap_content" android:layout_below="@+id/ItemImage" android:layout_height="wrap_content" android:text="TextView01" android:layout_centerHorizontal="true" android:id="@+id/ItemText"> </TextView></RelativeLayout>
package com.example.yanlei.my;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.view.Menu;import android.view.MenuItem;import android.view.View;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.GridView;import android.widget.SimpleAdapter;import java.util.ArrayList;import java.util.HashMap;public class MainActivity extends AppCompatActivity { public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); GridView gridview = (GridView) findViewById(R.id.gridview); //生成动态数组，并且转入数据 ArrayList<HashMap<String, Object>> lstImageItem = new ArrayList<HashMap<String, Object>>(); for (int i = 0; i < 10; i++) { HashMap<String, Object> map = new HashMap<String, Object>(); if (i == 0) { map.put("ItemImage", R.drawable.a1);//添加图像资源的ID } else { map.put("ItemImage", R.drawable.ic_launcher);//添加图像资源的ID } map.put("ItemText", "NO." + String.valueOf(i));//按序号做ItemText lstImageItem.add(map); } //生成适配器的ImageItem <====> 动态数组的元素，两者一一对应 SimpleAdapter saImageItems = new SimpleAdapter(this, lstImageItem,//数据来源 R.layout.grid,//grid的XML实现 //动态数组与ImageItem对应的子项 new String[]{"ItemImage", "ItemText"}, //ImageItem的XML文件里面的一个ImageView,两个TextView ID new int[]{R.id.ItemImage, R.id.ItemText}); //添加并且显示 gridview.setAdapter(saImageItems); //添加消息处理 gridview.setOnItemClickListener(new ItemClickListener()); } //当AdapterView被单击(触摸屏或者键盘)，则返回的Item单击事件 class ItemClickListener implements OnItemClickListener { public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { HashMap<String, Object> item = (HashMap<String, Object>) arg0.getItemAtPosition(arg2); //显示所选Item的ItemText setTitle((String) item.get("ItemText")); } } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.menu_main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); //noinspection SimplifiableIfStatement if (id == R.id.action_settings) { return true; } return super.onOptionsItemSelected(item); }}