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/*******************************************************************************
 * Copyright (c) 2013 Chris Banes.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package uk.co.blatech.blaupload.ui;

import android.content.Context;
import android.support.v4.view.PagerAdapter;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.widget.ImageView.ScaleType;

import java.util.ArrayList;

public class ImagePagerAdapter extends PagerAdapter {

    private final ArrayList<String> mUrls;

    private final Context mContext;

    public ImagePagerAdapter(Context context, ArrayList<String> urls) {
        mUrls = urls;
        mContext = context;
    }

    @Override
    public int getCount() {
        return null != mUrls ? mUrls.size() : 0;
    }

    @Override
    public View instantiateItem(ViewGroup container, int position) {
        NetworkCacheableImageView imageView = new NetworkCacheableImageView(mContext, null);

        String url = mUrls.get(position);
        imageView.loadImage(url, true, null);

        imageView.setScaleType(ScaleType.FIT_CENTER);
        container.addView(imageView, LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);

        return imageView;
    }

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

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

}