Android之Gallery使用例子

刚刚学习Android，用Gallery作了一个小demo，用来记录一下。

package com.example.galleryex02;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;

public class MainActivity extends Activity {

@Override
 public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.main);
   setTitle("电影海报");

Gallery gallery = (Gallery) findViewById(R.id.gallery1);

MyGalleryAdapter galAdapter = new MyGalleryAdapter(this);
   gallery.setAdapter(galAdapter);
 }

public class MyGalleryAdapter extends BaseAdapter {
   Context context;
   Integer[] posterID = { R.drawable.mov11, R.drawable.mov12,
       R.drawable.mov13, R.drawable.mov14, R.drawable.mov15,
       R.drawable.mov16, R.drawable.mov17, R.drawable.mov18,
       R.drawable.mov19, R.drawable.mov20 };

public MyGalleryAdapter(Context c) {
     context = c;
   }

public int getCount() {
     // TODO Auto-generated method stub
     return posterID.length;
   }

public Object getItem(int arg0) {
     // TODO Auto-generated method stub
     return null;
   }

public long getItemId(int position) {
     // TODO Auto-generated method stub
     return 0;
   }

public View getView(int position, View convertView, ViewGroup parent) {
     ImageView imageview = new ImageView(context);
     imageview.setLayoutParams(new Gallery.LayoutParams(100, 150));
     //设置image大小

imageview.setScaleType(ImageView.ScaleType.FIT_CENTER);
     imageview.setPadding(5, 5, 5, 5);
     imageview.setImageResource(posterID[position]);

final int pos = position;

//点击galley的image的时候
     imageview.setOnTouchListener(new View.OnTouchListener() {

public boolean onTouch(View v, MotionEvent event) {

ImageView ivPoster = (ImageView) findViewById(R.id.ivPoster);
         ivPoster.setScaleType(ImageView.ScaleType.FIT_CENTER);
         ivPoster.setImageResource(posterID[pos]);

return false;
       }
     });

return imageview;
   }
 }
}

效果如下：

来源：http://blog.csdn.net/hongzg1982/article/details/54747223