AlertDialog Gallery ImageSwitcher LayoutInflater 的结合使用，弹出窗选择图片

userheadchoose.xml

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
   
    <Gallery
    android:id="@+id/img_gallery"
    android:layout_width="fill_parent"
    android:layout_height="110px"
    android:layout_alignParentLeft="true"
    android:layout_marginTop="10px"></Gallery>
   
    <ImageSwitcher
    android:id="@+id/img_switcher"
    android:layout_width="90px"
    android:layout_height="90px"
    android:layout_alignBottom="@+id/img_gallery"
    android:layout_alignParentTop="true"
    android:layout_centerHorizontal="true"
    >
    </ImageSwitcher>
   
</RelativeLayout>

addcontact.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="fill_parent"
    android:layout_height="fill_parent">
    <ImageButton android:id="@+id/ibtnHead"
    android:layout_height="60px"
    android:layout_width="60px"
    android:src="@drawable/icon"
    android:scaleType="centerCrop">
    </ImageButton>
</LinearLayout>

AddContactActivity.java

package cn.AddContactActivity;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageButton;
import android.widget.ImageSwitcher;
import android.widget.ImageView;
import android.widget.ImageView.ScaleType;
import android.widget.ViewSwitcher.ViewFactory;

public class AddContactActivity extends Activity {
 
  ImageButton ibtnImgChoose;
     AlertDialog imgChooseDialog;
     Gallery gallery;
     ImageSwitcher imageSwitcher;
     int selectedImage;
     private int[] images = { R.drawable.image0001, R.drawable.image0002,
             R.drawable.image0003, R.drawable.image0004, R.drawable.image0005,
             R.drawable.image0006, R.drawable.image0007, R.drawable.image0008,
             R.drawable.image0009, R.drawable.image0010, };

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.addcontact);
        ibtnImgChoose = (ImageButton) findViewById(R.id.ibtnHead);
        ibtnImgChoose.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                initImageChoose();
                imgChooseDialog.show();
            }
        });
    }
   
    /**
     * 
     */
    private void initImageChoose() {
        LayoutInflater layoutInflater = LayoutInflater.from(this);
        View view = layoutInflater.inflate(R.layout.userheadchoose, null);
        //查找控件
        gallery = (Gallery) view.findViewById(R.id.img_gallery);
        gallery.setAdapter(new imageAdapter(this));
        gallery.setSelection(images.length / 2);
        //查找控件
        imageSwitcher = (ImageSwitcher) view.findViewById(R.id.img_switcher);
        imageSwitcher.setFactory(new switcherFactory(this));
        //图片的单击事件
        gallery.setOnItemSelectedListener(new OnItemSelectedListener() {
            public void onItemSelected(AdapterView<?> arg0, View arg1,
                     int arg2, long arg3) {
             selectedImage = arg2;
                imageSwitcher.setImageResource(images[arg2%images.length]);              
            }
            public void onNothingSelected(AdapterView<?> arg0) {
                // TODO Auto-generated method stub
            }
        });
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("请选择图像");
        builder.setPositiveButton("确认", new OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
                ibtnImgChoose.setImageResource(images[selectedImage%images.length]);
            }
        });
        builder.setNegativeButton("取消", new OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
            }
        });
        builder.setView(view);
        imgChooseDialog = builder.create();
    }
   
    /**
     * 
     * @author Administrator
     *
     */
    class imageAdapter extends BaseAdapter {
        private Context context;
        public imageAdapter(Context context) {
            super();
            this.context = context;
        }
        public int getCount() {
            return Integer.MAX_VALUE;
        }
        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);// 构造一个ImageView
            imageView.setImageResource(images[position%images.length]);// 设置ImageView图片源
            imageView.setAdjustViewBounds(true);
            imageView.setLayoutParams(new Gallery.LayoutParams(80, 80));// 设置显示图处的大小
            imageView.setPadding(15, 10, 15, 10);// 设置四边的距离
            return imageView;
        }
    }
   
    /**
     *
     * @author Administrator
     *
     */
    class switcherFactory implements ViewFactory {
        private Context context;
        public switcherFactory(Context context) {
            super();
            this.context = context;
        }
        public View makeView() {
            ImageView imageView = new ImageView(context);
            imageView.setLayoutParams(new ImageSwitcher.LayoutParams(90, 90));
            return imageView;
        }
    }
}