【Android】九宫格实现

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Q 649175826");
				}
			}
		});

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