网格视图（GridView）

继承于 AdapterView 类，通常需要和列表适配器 ListAdapter 配合使用

GridView 类方法

GridView 示例

完整工程：http://download.csdn.net/detail/sweetloveft/9426612

下述工程主要学习 GridView 的用法，GridView 的运用包含：照片墙、网格布局等。

1.MainActivity.java

package com.sweetlover.activity;import java.util.ArrayList;import java.util.List;import com.sweetlover.gridview.R;import android.app.Activity;import android.content.Context;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.GridView;import android.widget.TextView;public class MainActivity extends Activity {class SelfAdapter extends BaseAdapter {private class Grider {TextView textView;}private Context context = null;private List<String> lstGrid = null;private LayoutInflater layoutInflater = null;public SelfAdapter(Context context) {super();this.context = context;}public void setList(List<String> lstGrid) {this.lstGrid = lstGrid;layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);}@Overridepublic int getCount() {// TODO Auto-generated method stubreturn lstGrid.size();}@Overridepublic Object getItem(int position) {// TODO Auto-generated method stubreturn lstGrid.get(position);}@Overridepublic long getItemId(int position) {// TODO Auto-generated method stubreturn position;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {// TODO Auto-generated method stubGrider gridHolder = null;if (convertView != null) {gridHolder = (Grider) convertView.getTag();} else {gridHolder = new Grider();convertView = layoutInflater.inflate(R.layout.grid, null);gridHolder.textView = (TextView) convertView.findViewById(R.id.textView);convertView.setTag(gridHolder);}gridHolder.textView.setText(lstGrid.get(position));return convertView;}}private GridView gridView = null;private List<String> lstGrid = null;private SelfAdapter gridAdapter = null;@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);setContentView(R.layout.activity_main);int i;gridView = (GridView)findViewById(R.id.gridView);lstGrid = new ArrayList<String>();gridAdapter = new SelfAdapter(this);for (i = 1; i <= 15; i++) {lstGrid.add("Grid_" + i);}gridAdapter.setList(lstGrid);gridView.setAdapter(gridAdapter);}}

2.activity_main.xml

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

3.grid.xml

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:paddingBottom="8dp" >   <ImageView    android:id="@+id/imageView"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:layout_centerHorizontal="true"    android:contentDescription="@string/content_description"    android:src="@drawable/icon" />   <TextView    android:id="@+id/textView"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:layout_centerHorizontal="true"    android:layout_below="@id/imageView" /></RelativeLayout>

4.AndroidManifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.sweetlover.gridview"    android:versionCode="1"    android:versionName="1.0" >    <uses-sdk        android:minSdkVersion="8"        android:targetSdkVersion="19" />    <application        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@style/AppTheme" >        <activity android:name="com.sweetlover.activity.MainActivity">            <intent-filter>                <action android:name="android.intent.action.MAIN"/>                <category android:name="android.intent.category.LAUNCHER"/>            </intent-filter>        </activity>    </application></manifest>

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