Android 九宮格

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　　如下代碼直接複製到項目就可以運行使用了。我們都知道，android的九宮格可以用GridView控制項實現，這裡首先定義一個

　　gridview.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical" >    <GridView        android:id="@+id/gv_home"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:numColumns="3" >    </GridView></LinearLayout>

　　接著還得在定義一個gridview_item.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:gravity="center"    android:orientation="vertical" >    <ImageView         android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:id="@+id/iv_icon"        android:src="@drawable/ic_launcher"        />    <TextView         android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:id="@+id/tv_title"        android:text="模組標題"        android:textSize="18sp"        /></LinearLayout>

　　那麼現在布局就實現了，接下來就是Android代碼了。這裡需要注意的就是不能缺少GridView適配器。

　　

public class MainActivity extends Activity {    private GridView gv_home;    private String[] mTitleStrs;    private int[] mDrawableIds;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_home);        initUI();        //初始化資料的方法        initData();    }    private void initData() {            mTitleStrs = new String[]{"1","2","3","4",                "5","6","7","8","9"};//注意這裡的數字要和下面的圖片id一一對應，要不然實現的效果會文字圖片不符合        mDrawableIds = new int[]{R.drawable.ic_launcher,R.drawable.ic_launcher,                                    R.drawable.ic_launcher,R.drawable.ic_launcher,                                    R.drawable.ic_launcher,R.drawable.ic_launcher,                                    R.drawable.ic_launcher,R.drawable.ic_launcher,R.drawable.ic_launcher};        //九宮格控制項設定資料配接器(等同ListView資料配接器)        gv_home.setAdapter(new MyAdapter());    }        class MyAdapter extends BaseAdapter{        @Override        public int getCount() {            return mTitleStrs.length;        }        @Override        public Object getItem(int position) {            return mTitleStrs[position];        }        @Override        public long getItemId(int position) {            return position;        }        @Override        public View getView(int position, View convertView, ViewGroup parent) {            View view = View.inflate(getApplicationContext(), R.layout.gridview_item, null);            ImageView iv_icon = (ImageView) view.findViewById(R.id.iv_icon);            TextView tv_title = (TextView) view.findViewById(R.id.tv_title);                        tv_title.setText(mTitleStrs[position]);            iv_icon.setBackgroundResource(mDrawableIds[position]);                        return view;        }    }    private void initUI() {        gv_home = (GridView) findViewById(R.id.gv_home);    }}

 

Android 九宮格