Android(安卓)GridView的使用

网格视图GridView的使用：

package com.Aina.Android;import android.content.Context;import android.util.Log;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;public class ImageAdapter extends BaseAdapter {private Context mContext;private Integer[] imageIds = {R.drawable.img1,R.drawable.img2,R.drawable.img3,R.drawable.img4,R.drawable.img5,R.drawable.img6,R.drawable.img7,R.drawable.img8};public ImageAdapter(Context c){Log.i("TAG", "ImageAdapter()");this.mContext = c;}@Overridepublic int getCount() {Log.i("TAG","getCount()");return imageIds.length;}@Overridepublic Object getItem(int position) {Log.i("TAG","getItem()");return position;}@Overridepublic long getItemId(int position) {Log.i("TAG","getItemId()");return position;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {Log.i("TAG", position+"");ImageView iView = new ImageView(mContext);iView.setImageResource(imageIds[position]);return iView;}}

<?xml version="1.0" encoding="utf-8"?><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="20dp"android:horizontalSpacing="20dp"android:columnWidth="90dp"android:stretchMode="columnWidth"android:gravity="center"></GridView>

package com.Aina.Android;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.widget.AdapterView;import android.widget.GridView;import android.widget.Toast;import android.widget.AdapterView.OnItemClickListener;public class Test_GridView extends Activity {    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        GridView gView = (GridView) this.findViewById(R.id.GridView);        gView.setAdapter(new ImageAdapter(this));//添加元素        gView.setBackgroundResource(R.drawable.bg0);//添加背景        gView.setOnItemClickListener(new OnItemClickListener(){@Overridepublic void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {Toast.makeText(Test_GridView.this, "选择了"+(arg2+1)+"号图片", Toast.LENGTH_SHORT).show();}                });    }}

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