ImageBrowserAdapter.java

package hillfly.wifichat.adapter;

import hillfly.wifichat.activity.ImageBrowserActivity;
import hillfly.wifichat.common.view.photoview.PhotoView;

import java.util.ArrayList;
import java.util.List;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.support.v4.view.PagerAdapter;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;

public class ImageBrowserAdapter extends PagerAdapter {

    private List<String> mPhotos = new ArrayList<String>();
    private String mType;

    public ImageBrowserAdapter(Context context, List<String> photos, String type) {
        if (photos != null) {
            mPhotos = photos;
        }
        mType = type;
    }

    @Override
    public int getCount() {
        if (mPhotos.size() > 1) {
            return Integer.MAX_VALUE;
        }
        return mPhotos.size();
    }

    @Override
    public boolean isViewFromObject(View view, Object object) {
        return view == object;
    }

    @Override
    public View instantiateItem(ViewGroup container, int position) {
        PhotoView photoView = new PhotoView(container.getContext());
        Bitmap bitmap = null;
        if (ImageBrowserActivity.TYPE_PHOTO.equals(mType)) {
            bitmap = BitmapFactory.decodeFile(mPhotos.get(position));
        }
        photoView.setImageBitmap(bitmap);
        container.addView(photoView, LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
        return photoView;
    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {
        container.removeView((View) object);
    }
}