1.10 状态选择器: 就是一个xml配置文件

<? xml version = "1.0" encoding = "utf-8" ?>

< selector xmlns:android = "http://schemas.android.com/apk/res/android" >

< item android:state_pressed = "true"

android:drawable = "@color/gray" /> <!-- pressed :当前条目被按下时显示指定图形-->

< item android:state_focused = "true"

android:drawable = "@color/gray" /> <!-- focused:获取焦点的时候 -->

< item android:drawable = " @android:color/transparent " /> <!-- default :默认的图形-->

</ selector >

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<? 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"

android:background="@drawable/home_item_selector"

android:gravity = "center"

>

< ImageView

android:id = "@+id/iv_item_icon"

android:src = "@drawable/app"

android:layout_width = "55dip"

android:layout_height = "55dip"

/>

< TextView

android:id = "@+id/tv_item_name"

android:layout_width = "wrap_content"

android:layout_height = "wrap_content"

android:text = "手机防盗"

android:textColor = "#000000"

android:textSize = "16sp"

/>

</ LinearLayout >

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public class MainActivity extends Activity {

private GridView gv_home ;

private String[] names = { "手机防盗" , "通讯卫士" , "软件管理" , "进程管理" , "流量统计" , "手机杀毒" ,

"系统优化" , "高级工具" , "程序设置" };

private int [] icons = { R.drawable. icon_safe_selector ,R.drawable. icon_call_selector ,

R.drawable. icon_app_selector ,R.drawable. icon_task_selector ,R.drawable. icon_net_selector ,R.drawable. icon_trojan_selector ,

R.drawable. icon_sys_selector ,R.drawable. icon_atools_selector ,R.drawable. icon_setting_selector };

@Override

protected void onCreate(Bundle savedInstanceState) {

super .onCreate(savedInstanceState);

setContentView(R.layout. activity_main );

gv_home =(GridView) findViewById(R.id. gv_home );

//填充界面

gv_home .setAdapter( new HomeAdapter());

//跳转模块界面

gv_home .setOnItemClickListener( new OnItemClickListener() {

@Override

public void onItemClick(AdapterView<?> parent,View view,

int position, long id) {

switch (position) {

case 8:

Intent intent_setting= new Intent(MainActivity. this ,SettingActivity. class );

startActivity(intent_setting);

break ;

}

}

});

}

/**

* 创建适配器

* @author Administrator

*

*/

private class HomeAdapter extends BaseAdapter{

@Override

public int getCount() {

return names . length ;

}

@Override

public View getView( int position,View convertView,ViewGroup parent) {

//创建填充器

View view = View.inflate(getApplicationContext(),R.layout. grid_home_item , null );

ImageView iv_item_icon=(ImageView) view.findViewById(R.id. iv_item_icon );

TextView tv_item_name=(TextView) view.findViewById(R.id. tv_item_name );

iv_item_icon.setImageResource( icons [position]);

tv_item_name.setText( names [position]);

return view;

}

@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;

}

}

}