浅析GridView制作九宫格列表

GridView的三个重要属性：

android:horizontalSpacing 两列之间的间距

android:verticalSpacing 两行之间的间距

android:numColumns 每行显示几列

实现GridView的几大步：

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 OnItemClickLister

public class GridViewActivity extends AppCompatActivity implements AdapterView.OnItemClickListener{
    private GridView gridView;
    private SimpleAdapter simpleAdapter;
    private List> dataList;
    private int[] icon = {R.drawable.book, R.drawable.calendar, R.drawable.camera,
            R.drawable.clock, R.drawable.game, R.drawable.message,
            R.drawable.setting1, R.drawable.weather, R.drawable.world};
    private String[] iconName = {"目录", "日历", "照相机", "时钟", "游戏", "信息", "设置", "天气", "浏览器"};

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_gridview);
        dataList = new ArrayList>();
        gridView = (GridView) findViewById(R.id.gridView);
        simpleAdapter = new SimpleAdapter(this, getData(), R.layout.activity_gridview_item,
                new String[]{"image","name"}, new int[]{R.id.gridImage, R.id.gridText});
        gridView.setAdapter(simpleAdapter);
        gridView.setOnItemClickListener(this);
    }

    private List> getData() {

        for (int i = 0; i < icon.length ; i++) {
            Map map = new HashMap();
            map.put("image",icon[i]);
            map.put("name",iconName[i]);
            dataList.add(map);
        }
        return dataList;
    }

    @Override
    public void onItemClick(AdapterView parent, View view, int position, long id) {
        Toast.makeText(this, "我是"+iconName[position], Toast.LENGTH_SHORT).show();
    }
}