Android开发学习笔记-GridView的动态显示

1、添加GridItem布局文件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:gravity="center"
    android:orientation="vertical" >

    <ImageView
        android:id="@+id/iv_image"
        android:layout_width="wrap_content"
        android:layout_height="60dp"

        android:src="@drawable/app" />

    <TextView
        android:id="@+id/tv_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="设置中心" />

</LinearLayout>

2、主界面添加GridView

 <GridView
        android:id="@+id/grid_main"
         android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:numColumns="3"
        >

    </GridView>

3、添加自定义适配器类，并对自定义griditem布局文件中的控件进行设置值

protected class MyGridAdapter extends BaseAdapter {

        @Override
        public int getCount() {
            // TODO Auto-generated method stub
            return titles.length;
        }

        @Override
        public Object getItem(int position) {
            // TODO Auto-generated method stub
            return null;
        }

        @Override
        public long getItemId(int position) {
            // TODO Auto-generated method stub
            return 0;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            // TODO Auto-generated method stub
            View view = View.inflate(MainActivity.this, R.layout.list_item_main, null);
            TextView title =  (TextView) view.findViewById(R.id.tv_title);
            title.setText(titles[position]);

            return view;
        }

4、设置主界面中的GridItem

private GridView grid_main;
private MyGridAdapter adapter;
private static String []titles = {"设置中心1","设置中心2","设置中心3","设置中心4","设置中心5","设置中心6","设置中心7","设置中心8","设置中心9"};

....
grid_main = (GridView) findViewById(R.id.grid_main);
adapter = new MyGridAdapter();
grid_main.setAdapter(adapter);

5、添加item点击事件

grid_main.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> parent, View view,
                    int position, long id) {
                // TODO Auto-generated method stub
                ConsoleItemClick(position);
            }
        });

6、显示