案例:做一个手机卫士界面
(图片是阿里图标随便找的)
主界面:
private GridView gv_main;
private MyAdapter adapter;
String[] name={"手机防盗","软件管理","进程管理","设置中心"};
int[] icons=new int[]{R.drawable.security,R.drawable.software,R.drawable.task,R.drawable.setting};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
gv_main=(GridView)findViewById(R.id.gv_main);
adapter=new MyAdapter(this, name, icons);
gv_main.setAdapter(adapter);
gv_main.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
String s = name[position];
Toast.makeText(MainActivity.this,s,Toast.LENGTH_SHORT).show();
}
});
}
<GridView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:numColumns="3"
android:layout_marginTop="10dp"
android:id="@+id/gv_main"
android:verticalSpacing="10dp"/>
item布局:
<ImageView
android:layout_width="60dp"
android:layout_height="60dp"
android:src="@drawable/ic_launcher_background"
android:id="@+id/gv_iv_one"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="16dp"
android:text="应用名称"
android:id="@+id/gv_tv_one"/>
适配器:
public class MyAdapter extends BaseAdapter {
private String[] appName;
private int[] icons;
private Context context;
public MyAdapter(Context context,String[] appName, int[] icons) {
this.appName = appName;
this.icons = icons;
this.context=context;
}
@Override
public int getCount() {
return appName.length;
}
@Override
public Object getItem(int position) {
return appName[position];
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if(convertView==null){
convertView = View.inflate(context, R.layout.gv_item, null);
}
TextView textView=(TextView)convertView.findViewById(R.id.gv_tv_one);
ImageView imageView=(ImageView)convertView.findViewById(R.id.gv_iv_one);
textView.setText(appName[position]);
imageView.setImageResource(icons[position]);
return convertView;
}
}