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标题:
Android:控件GridView的使用
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作者:
jekeyhui99
时间:
2015-11-30 19:59
标题:
Android:控件GridView的使用
如果是列表(单列多行形式)的使用ListView,如果是多行多列网状形式的优先使用GridView。
<?xml version="1.0" encoding="utf-8"?>
<GridView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</GridView>
GirdView的一些属性:
android:numColumns="auto_fit" --------列数设置为自动
android:columnWidth="90dp",----------每列的宽度,也就是Item的宽度
android:stretchMode="columnWidth"------缩放与列宽大小同步
android:verticalSpacing="10dp"----------垂直边距
android:horizontalSpacing="10dp"-------水平边距
1、准备数据源
2、新建适配器
3、加载适配器
GridView(网格视图)是按照行列的方式来显示内容的,一般用于显示图片,图片等内容,比如实现九宫格图,用GridView是首选,也是最简单的,下面来个实例,
下载实例>>>
效果图:
MainActivity.java
package com.example.testgridview;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.app.Activity;
import android.os.Bundle;
import android.widget.GridView;
import android.widget.SimpleAdapter;
public class MainActivity extends Activity {
private GridView gview;
private List<Map<String, Object>> data_list;
private SimpleAdapter sim_adapter;
// 图片封装为一个数组
private int[] icon = { R.drawable.address_book, R.drawable.calendar,
R.drawable.camera, R.drawable.clock, R.drawable.games_control,
R.drawable.messenger, R.drawable.ringtone, R.drawable.settings,
R.drawable.speech_balloon, R.drawable.weather, R.drawable.world,
R.drawable.youtube };
private String[] iconName = { "通讯录", "日历", "照相机", "时钟", "游戏", "短信", "铃声",
"设置", "语音", "天气", "浏览器", "视频" };
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.test);
gview = (GridView) findViewById(R.id.gview);
//新建List
data_list = new ArrayList<Map<String, Object>>();
//获取数据
getData();
//新建适配器
String [] from ={"image","text"};
int [] to = {R.id.image,R.id.text};
sim_adapter = new SimpleAdapter(this, data_list, R.layout.item, from, to);
//配置适配器
gview.setAdapter(sim_adapter);
}
public List<Map<String, Object>> getData(){
//cion和iconName的长度是相同的,这里任选其一都可以
for(int i=0;i<icon.length;i++){
Map<String, Object> map = new HashMap<String, Object>();
map.put("image", icon
);
map.put("text", iconName
);
data_list.add(map);
}
return data_list;
}
}
test.xml
<?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="#000"
>
<GridView
android:id="@+id/gview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:numColumns="auto_fit"
android:columnWidth="80dp"
android:stretchMode="columnWidth"
></GridView>
</LinearLayout>
item.xml
<?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:orientation="vertical"
android:gravity="center"
android:padding="10dp"
>
<ImageView
android:src="@drawable/ic_launcher"
android:id="@+id/image"
android:layout_width="60dp"
android:layout_height="60dp"
/>
<TextView
android:id="@+id/text"
android:layout_marginTop="5dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#ffffff"
android:text="文字"
/>
</LinearLayout>
监听接口: onItemClickListener
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