本文实例讲述了android控件之gridview用法。分享给大家供大家参考。具体如下：
gridview是一项显示二维的viewgroup，可滚动的网格。一般用来显示多张图片。
以下模拟九宫图的实现，当鼠标点击图片时会进行相应的跳转链接。
目录结构如下：
main.xml布局文件，存放gridview控件
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<?xml version="1.0" encoding="utf-8"?>
<!--
android:numcolumns="auto_fit" ，gridview的列数设置为自动
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"，两行之间的边距，如：行一(no.0~no.2)与行二(no.3~no.5)间距为10dp
android:horizontalspacing="10dp"，两列之间的边距
-->
<gridview xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/gridview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:numcolumns="auto_fit"
android:verticalspacing="10dp"
android:horizontalspacing="10dp"
android:columnwidth="90dp"
android:stretchmode="columnwidth"
android:gravity="center"
/>
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night_item.xml布局文件，存放显示控件
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<?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:layout_width="wrap_content"
android:layout_centerhorizontal="true"
android:id="@+id/itemimage" >
</imageview>
<textview android:layout_width="wrap_content"
android:layout_below="@+id/itemimage"
android:layout_height="wrap_content"
android:text="textview01"
android:layout_centerhorizontal="true"
android:id="@+id/itemtext">
</textview>
</relativelayout>
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strings.xml
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<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="hello">hello world, gvactivity!</string>
<string name="app_name">九宫图</string>
<string name="test_name1">跳转到testactivity1</string>
<string name="test_name2">跳转到testactivity2</string>
<string name="test_name3">跳转到testactivity3</string>
</resources>
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清单文件
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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.ljq.gv"
android:versioncode="1"
android:versionname="1.0">
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".gvactivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.main" />
<category android:name="android.intent.category.launcher" />
</intent-filter>
</activity>
<activity android:name=".testactivity1" android:label="@string/test_name1"/>
<activity android:name=".testactivity2" android:label="@string/test_name2"/>
<activity android:name=".testactivity3" android:label="@string/test_name3"/>
</application>
<uses-sdk android:minsdkversion="7" />
</manifest>
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跳转类testactivity1、testactivity2、testactivity3
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package com.ljq.gv;
import android.app.activity;
import android.os.bundle;
public class testactivity1 extends activity {
@override
public void oncreate(bundle savedinstancestate) {
super.oncreate(savedinstancestate);
//setcontentview(r.layout.main);
}
}
package com.ljq.gv;
import android.app.activity;
import android.os.bundle;
public class testactivity2 extends activity {
@override
public void oncreate(bundle savedinstancestate) {
super.oncreate(savedinstancestate);
//setcontentview(r.layout.main);
}
}
package com.ljq.gv;
import android.app.activity;
import android.os.bundle;
public class testactivity3 extends activity {
@override
public void oncreate(bundle savedinstancestate) {
super.oncreate(savedinstancestate);
//setcontentview(r.layout.main);
}
}
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类gvactivity：
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package com.ljq.gv;
import java.util.arraylist;
import java.util.hashmap;
import android.app.activity;
import android.content.intent;
import android.os.bundle;
import android.view.view;
import android.widget.adapterview;
import android.widget.gridview;
import android.widget.simpleadapter;
import android.widget.toast;
import android.widget.adapterview.onitemclicklistener;
public class gvactivity extends activity {
private string texts[] = null;
private int images[] = null;
public void oncreate(bundle savedinstancestate) {
super.oncreate(savedinstancestate);
setcontentview(r.layout.main);
images=new int[]{r.drawable.p1, r.drawable.p2,
r.drawable.p3, r.drawable.p4,
r.drawable.p5,r.drawable.p6,
r.drawable.p7,r.drawable.p8};
texts = new string[]{ "宫式布局1", "宫式布局2",
"宫式布局3", "宫式布局4",
"宫式布局5", "宫式布局6",
"宫式布局7", "宫式布局8"};
gridview gridview = (gridview) findviewbyid(r.id.gridview);
arraylist<hashmap<string, object>> lstimageitem = new arraylist<hashmap<string, object>>();
for (int i = 0; i < 8; i++) {
hashmap<string, object> map = new hashmap<string, object>();
map.put("itemimage", images[i]);
map.put("itemtext", texts[i]);
lstimageitem.add(map);
}
simpleadapter saimageitems = new simpleadapter(this,
lstimageitem,// 数据源
r.layout.night_item,// 显示布局
new string[] { "itemimage", "itemtext" },
new int[] { r.id.itemimage, r.id.itemtext });
gridview.setadapter(saimageitems);
gridview.setonitemclicklistener(new itemclicklistener());
}
class itemclicklistener implements onitemclicklistener {
/**
* 点击项时触发事件
*
* @param parent 发生点击动作的adapterview
* @param view 在adapterview中被点击的视图(它是由adapter提供的一个视图)。
* @param position 视图在adapter中的位置。
* @param rowid 被点击元素的行id。
*/
public void onitemclick(adapterview<?> parent, view view, int position, long rowid) {
hashmap<string, object> item = (hashmap<string, object>) parent.getitematposition(position);
//获取数据源的属性值
string itemtext=(string)item.get("itemtext");
object object=item.get("itemimage");
toast.maketext(gvactivity.this, itemtext, toast.length_long).show();
//根据图片进行相应的跳转
switch (images[position]) {
case r.drawable.p1:
startactivity(new intent(gvactivity.this, testactivity1.class));//启动另一个activity
finish();//结束此activity，可回收
break;
case r.drawable.p2:
startactivity(new intent(gvactivity.this, testactivity2.class));
finish();
break;
case r.drawable.p3:
startactivity(new intent(gvactivity.this, testactivity3.class));
finish();
break;
}
}
}
}
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运行结果
希望本文所述对大家的android程序设计有所帮助。