android GridView

package com.bing.gridview; import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.BaseAdapter; import android.widget.GridView; import android.widget.ImageView; import android.widget.Toast; public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); GridView gv = (GridView)findViewById(R.id.GridView1); //为GridView设置适配器 gv.setAdapter(new MyAdapter(this)); //注册监听事件 gv.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView<?> parent, View v, int position, long id) { Toast.makeText(MainActivity.this, "pic" + position, Toast.LENGTH_SHORT).show(); } }); } } //自定义适配器 class MyAdapter extends BaseAdapter{ //上下文对象 private Context context; //图片数组 private Integer[] imgs = { R.drawable.pic0, R.drawable.pic1, R.drawable.pic2, R.drawable.pic3, R.drawable.pic4, R.drawable.pic5, R.drawable.pic6, R.drawable.pic7, R.drawable.pic8, R.drawable.pic0, R.drawable.pic1, R.drawable.pic2, R.drawable.pic3, R.drawable.pic4, R.drawable.pic5, R.drawable.pic6, R.drawable.pic7, R.drawable.pic8, }; MyAdapter(Context context){ this.context = context; } public int getCount() { return imgs.length; } public Object getItem(int item) { return item; } public long getItemId(int id) { return id; } //创建View方法 public View getView(int position, View convertView, ViewGroup parent) { ImageView imageView; if (convertView == null) { imageView = new ImageView(context); imageView.setLayoutParams(new GridView.LayoutParams(75, 75));//设置ImageView对象布局 imageView.setAdjustViewBounds(false);//设置边界对齐 imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);//设置刻度的类型 imageView.setPadding(8, 8, 8, 8);//设置间距 } else { imageView = (ImageView) convertView; } imageView.setImageResource(imgs[position]);//为ImageView设置图片资源 return imageView; } }