import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.GridView;
import android.widget.SimpleAdapter;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;

public class MainActivity extends AppCompatActivity {

   private GridView gridView;
   private List<Map<String, Objects>> dataList;
   private int[] icon = {R.drawable.address_book, R.drawable.calendar, R.drawable.camera, R.drawable.clock
           , R.drawable.games_control, R.drawable.messenger, R.drawable.ringtone, R.drawable.settings
           , R.drawable.speech_balloon, R.drawable.weather, R.drawable.world, R.drawable.youtube};

   private String[] iconName = {"通讯录", "日历", "照相机", "时钟", "游戏", "短信", "铃声", "设置",
           "语音", "天气", "浏览器", "视频"};

   private SimpleAdapter adapter;

   protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_main);
       gridView = (GridView) findViewById(R.id.gridView);

       /*
       * 1、准备数据源
       * 2、新建适配器（SimpleAdapter）
       * 3、GridView加载适配器
       * 4、GridView配置时间监听器（OnItemClickListener）
       * */
       dataList = new ArrayList<Map<String, Objects>>();

       getData();

       adapter = new SimpleAdapter(this, getData(), R.layout.item, new String[]{"image", "text"},
               new int[]{R.id.image, R.id.text});
       gridView.setAdapter(adapter);

   }

   public List<Map<String, Objects>> getData() {
       for (int i = 0; i < icon.length; i++) {
           Map<String, Object> map = new HashMap<String, Object>();

           map.put("image", icon[i]);

           map.put("text",iconName);

           dataList.add(map);

       }

       return dataList;
   }
}