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