Android GridView的使用

GridView就是先将控件横向显示，然后纵向显示

效果如上所示

先看一下GridView的布局文件

<?xml version="1.0" encoding="utf-8"?>    <GridView       xmlns:android="http://schemas.android.com/apk/res/android"        android:id="@+id/brainheroall"        android:background="#FFeff1ef"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:numColumns="auto_fit"      android:verticalSpacing="10dp"      android:horizontalSpacing="10dp"      android:columnWidth="90dp"      android:stretchMode="columnWidth"      android:gravity="center"      />    

这是如何显示GridView，下面的xml文件是GridView里面如何显示

<?xml version="1.0" encoding="utf-8"?>  <RelativeLayout            xmlns:android="http://schemas.android.com/apk/res/android"            android:layout_height="wrap_content"            android:paddingBottom="4dip" android:layout_width="fill_parent">           <ImageView                  android:layout_height="wrap_content"                  android:id="@+id/ItemImage"                  android:layout_width="wrap_content"                  android:layout_centerHorizontal="true">            </ImageView>           <TextView                  android:layout_width="wrap_content"                  android:layout_below="@+id/ItemImage"                  android:layout_height="wrap_content"                  android:text=""                  android:textColor="#FF000000"               android:layout_centerHorizontal="true"                  android:id="@+id/ItemText">           </TextView>  </RelativeLayout> 

下面是Java代码如何使用GridView

package view;import java.util.ArrayList;import java.util.HashMap;import model.HeroSimpleInfo;import service.ObtainInfo;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.KeyEvent;import android.view.View;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.GridView;import android.widget.SimpleAdapter;import android.widget.Toast;import com.zhychneg.dota.R;public class BrainHeroActivity extends Activity implements OnItemClickListener{GridView gv=null;long exitTime=0;HeroSimpleInfo []heros=null;@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);setContentView(R.layout.brainheroall);gv=(GridView) findViewById(R.id.brainheroall);ArrayList<HashMap<String,Object>> al=new ArrayList<HashMap<String,Object>>();heros=ObtainInfo.getBrainHeroSimpleInfo();for(int i=0;i<heros.length;i++){HashMap<String, Object> map = new HashMap<String, Object>();                 map.put("icon", heros[i].getRes());//添加图像资源的ID          map.put("name", heros[i].getName());//按序号做ItemText          al.add(map);  }SimpleAdapter sa=new SimpleAdapter(this,al,R.layout.gridview_layout,new String[]{"icon","name"},new int[]{R.id.ItemImage,R.id.ItemText});gv.setAdapter(sa);gv.setOnItemClickListener(this);}public void onItemClick(AdapterView<?> parent, View view, int position,long id) {Intent intent =new Intent(this,AboutHeroActivty.class);intent.putExtra("HERO", heros[position]);this.startActivity(intent);}}