【Android】九宫格实现

转载

mob60475700473b 2015-09-27 09:19:00

文章标签 android xml 初始化点击事件数据源 文章分类 后端开发

第一步，布局文件

<LinearLayout 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"
    tools:context=".JokeTabHostActivity"
    android:orientation="vertical"
    >

    <GridView 
        android:id="@+id/GridView"
        android:listSelector="@android:color/transparent"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:columnWidth="90dp"
        android:gravity="center"
        android:numColumns="auto_fit"
        android:layout_marginTop="10dp"
        android:stretchMode="columnWidth">
    </GridView>

</LinearLayout>

第二步，在你的activity 中调用初始化Grid

GridView gridview = (GridView) findViewById(R.id.GridView);
    ArrayList<HashMap<String, Object>> meumList = new ArrayList<HashMap<String, Object>>();
    for (int i = 1; i < 4; i++) {
      HashMap<String, Object> map = new HashMap<String, Object>();
      if (i == 1) {
        map.put("ItemImage", R.drawable.a1);
        map.put("ItemText", "文章精选");
      } else if (i == 2) {
        map.put("ItemImage", R.drawable.a2);
        map.put("ItemText", "幽默笑话");
      } else {
        map.put("ItemImage", R.drawable.a5);
        map.put("ItemText", "期待很多其它");
      }

      meumList.add(map);
    }

    SimpleAdapter saItem = new SimpleAdapter(this, meumList, // 数据源
        R.layout.item, // xml实现
        new String[] { "ItemImage", "ItemText" }, // 相应map的Key
        new int[] { R.id.ItemImage, R.id.ItemText }); // 相应R的Id
                                // //加入Item到网格中
    gridview.setAdapter(saItem); // 加入点击事件
    gridview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
      @SuppressWarnings("static-access")
      public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
          long arg3) {
        int index = arg2 + 1;// id是从0開始的，所以须要+1
        if (index == 1) {

            Intent intent = new Intent();
            intent.setClass(MainActivity.this,
                CloseTabHostActivity.class);
            startActivity(intent);



        }
        if (index == 2) {
           Intent intent = new Intent();
           intent.setClass(MainActivity.this,
               XListViewActivity.class);
           startActivity(intent);
          //showInfo("正在努力码代码中。。。
");
          // finish();//停止当前的Activity,假设不写,则按返回键会跳转回原来的Activity
        }
        if (index == 3) {
          showInfo("期待你的建议，好建议请");
        }
      }
    });