画廊

package com.example.gallerytext;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Gallery;
import android.widget.Toast;

public class MainActivity extends Activity {
    Gallery gallery;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        gallery=(Gallery) findViewById(R.id.gallery);
        GalleryAdapter galleryAdapter = new GalleryAdapter(MainActivity.this);
        gallery.setAdapter(galleryAdapter);
        //相应的点击事件
        gallery.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
                Toast.makeText(MainActivity.this, "您点击的是" + i, Toast.LENGTH_LONG).show();
            }
        });
    }


        
    }

xml里面写Gallery属性

<Gallery
        android:id="@+id/gallery"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_centerVertical="true"
        android:layout_centerHorizontal="true" />

继承BaseAdapter适配器

package com.example.gallerytext;

import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;

/**
 * Created by ZWH on 2016/5/16.
 */
public class GalleryAdapter extends BaseAdapter {
    private Context mContext;
    //设置要展示的图片资源
    int[] images = {R.drawable.ic_launcher,R.drawable.f1,R.drawable.f2,R.drawable.f3,R.drawable.f4,R.drawable.f5,R.drawable.f6,R.drawable.f7,R.drawable.f8,R.drawable.f9,R.drawable.f10,};

    public GalleryAdapter(Context context) {
        this.mContext = context;
    }

    @Override
    public int getCount() {
        return images.length;
    }

    @Override
    public Object getItem(int i) {
        return i;
    }

    @Override
    public long getItemId(int i) {
        return i;
    }

    @Override
    public View getView(int i, View view, ViewGroup viewGroup) {
        //在此最好判断一下view是否为空
        ImageView image = new ImageView(mContext);
        image.setImageResource(images[i]);
        image.setAdjustViewBounds(true);
        //设置宽高
        image.setLayoutParams(new Gallery.LayoutParams(
                ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
        return image;
    }
}