package com.imoc.demo;

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;

/**
* 学习gridview制作二位布局界面
* 数据源-适配器-视图界面
* 集合    simadapter  gridview
*/
public class MainActivity extends AppCompatActivity {
   private GridView gridView;
   private java.util.List<Map<String,Object>> 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.rightone,R.drawable.settings,
           R.drawable.weather,R.drawable.world,R.drawable.yutube};
   private  String[] iconName={"通讯录","日历","照相机","时钟","游戏",
           "短信","铃声","设置","天气","浏览器","视频"};
   private SimpleAdapter adapter;
   @Override
   protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_main);
       gridView=(GridView) findViewById(R.id.gridView);
       /**
        * 准备数据源
        * 新建适配器 simpadapter
        * Gridview加载适配器
        * gridview配置事件监听器  onitemcliklistener
        */
       dataList= new ArrayList<Map<String,Object>>();
       getData();
       adapter=new SimpleAdapter(this,getData(),R.layout.item,new String[]{"image","text"},
               new int[]{R.id.image,R.id.text} );
       gridView.setAdapter(adapter);//加载适配器
   }
   privte List<Map<String,Object>> 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[i]);
           dataList.add(map);
       }
       return dataList;
   }