Android应用源码之35.GridView控件学习-IT计算机-毕业设计.zip

package com.szy.gridview; import java.util.ArrayList; import java.util.List; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.BaseAdapter; import android.widget.GridView; import android.widget.ImageView; import android.widget.TextView; import android.widget.AdapterView.OnItemClickListener; /** * @author coolszy * @blog http://blog.csdn.net/coolszy */ public class PictureActivity extends Activity { private GridView gridView; private String[] titles = new String[] { "MM1", "MM2", "MM3", "MM4", "MM5", "MM6", "MM7", "MM8", }; private int[] 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 }; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); gridView = (GridView) findViewById(R.id.gridview); PictureAdapter adapter = new PictureAdapter(titles, images, this); gridView.setAdapter(adapter); gridView.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView<?> parent, View v, int position, long id) { Log.i("MainActivity", "Position:" + position); Intent intent = new Intent(PictureActivity.this, ImageViewActivity.class); intent.putExtra("id", images[position]); startActivity(intent); } }); } } class PictureAdapter extends BaseAdapter { private LayoutInflater inflater; private List<Picture> pictures; public PictureAdapter(String[] titles, int[] images, Context context) { super(); pictures = new ArrayList<Picture>(); inflater = LayoutInflater.from(context); for (int i = 0; i < images.length; i++) { Picture picture = new Picture(titles[i], images[i]); pictures.add(picture); } } @Override public int getCount() { if (null != pictures) { return pictures.size(); } else { return 0; } } @Override public Object getItem(int position) { return pictures.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder viewHolder; if (convertView == null) { convertView = inflater.inflate(R.layout.picture_item, null); viewHolder = new ViewHolder(); viewHolder.title = (TextView) convertView.findViewById(R.id.title); viewHolder.image = (ImageView) convertView.findViewById(R.id.image); convertView.setTag(viewHolder); } else { viewHolder = (ViewHolder) convertView.getTag(); } viewHolder.title.setText(pictures.get(position).getTitle()); viewHolder.image.setImageResource(pictures.get(position).getImageId()); Log.i("MainActivity", "<<<<<<<" + position); return convertView; } } class ViewHolder { public TextView title; public ImageView image; } class Picture { private String title; private int imageId; public Picture() { super(); } public Picture(String title, int imageId) { super(); this.title = title; this.imageId = imageId; } public String getTitle() { return title; } public void setTitle(String title) { this.title = title; } public int getImageId() { return imageId; } public void setImageId(int imageId) { this.imageId = imageId; } }