Android Open Source - android-slideshow-widget Generic Resource Bitmap Adapter

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License

The source code is released under:

Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions...

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Java Source Code

package com.marvinlabs.widget.slideshow.adapter;
//from   w  ww .  j av a  2 s  . com
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;

import java.util.Collection;

/**
 * A GenericBitmapAdapter that loads images from application resources.
 * <p/>
 * Created by Vincent Mimoun-Prat @ MarvinLabs on 29/05/2014.
 */
public abstract class GenericResourceBitmapAdapter<T> extends GenericBitmapAdapter<T> {

    // The options to pass to the BitmapFactory used to decode the bitmaps
    private BitmapFactory.Options bitmapFactoryOptions;

    //==============================================================================================
    // GENERAL METHODS
    //==

    /**
     * Constructor
     *
     * @param context The context in which the adapter is created (activity)
     * @param items   The items for which we have images to load
     */
    public GenericResourceBitmapAdapter(Context context, Collection<T> items) {
        super(context, items);
    }

    /**
     * Constructor
     *
     * @param context              The context in which the adapter is created (activity)
     * @param items                The items for which we have images to load
     * @param bitmapFactoryOptions The options to pass to the BitmapFactory used to decode the
     *                             bitmaps
     */
    public GenericResourceBitmapAdapter(Context context, Collection<T> items, BitmapFactory.Options bitmapFactoryOptions) {
        super(context, items);
        this.bitmapFactoryOptions = bitmapFactoryOptions;
    }

    //==============================================================================================
    // ASYNC MANAGEMENT METHODS
    //==

    protected abstract int getItemImageResourceId(T item, int position);

    @Override
    protected Bitmap asyncLoadBitmap(T item, int position) {
        Bitmap bm = BitmapFactory.decodeResource(getContext().getResources(), getItemImageResourceId(item, position), bitmapFactoryOptions);
        return bm;
    }
}

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