Android GridView的使用
Android GridView的使用
Android 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;
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- // TODO Auto-generated method stub
- super.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);
- }
- }
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