helix.profitkey.hotelapp.ImagePagerFragment.java Source code

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Here is the source code for helix.profitkey.hotelapp.ImagePagerFragment.java

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/*******************************************************************************
 * Copyright 2011-2014 Sergey Tarasevich
 *
 * 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 helix.profitkey.hotelapp;

/** Profit Key 1.0.0
 *  Purpose      : Image Loader in Swiping in Booking Screen Support class
 *  Created by : Abish
 *  Created Dt : 4/21/2016
 *  Modified on:
 *  Verified by:
 *  Verified Dt:
 */
import android.content.Context;
import android.graphics.Bitmap;
import android.os.Parcelable;
import android.support.v4.view.PagerAdapter;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.Toast;

import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;
import com.nostra13.universalimageloader.core.assist.FailReason;
import com.nostra13.universalimageloader.core.assist.ImageScaleType;
import com.nostra13.universalimageloader.core.display.FadeInBitmapDisplayer;
import com.nostra13.universalimageloader.core.listener.SimpleImageLoadingListener;
import com.nostra13.universalimageloader.core.process.BitmapProcessor;

public class ImagePagerFragment extends PagerAdapter {
    /** Global Declarations*/
    Context contex;
    private String[] image_url;
    private LayoutInflater inflater;
    private DisplayImageOptions options;

    /** Constructor */
    ImagePagerFragment(Context context, String[] img_url_array) {
        contex = context;
        inflater = LayoutInflater.from(context);
        image_url = img_url_array;
        /** Initialize and setting configuration for image loader*/
        ImageLoader.getInstance().init(ImageLoaderConfiguration.createDefault(context));

        options = new DisplayImageOptions.Builder().showImageForEmptyUri(R.drawable.lock)
                .showImageOnFail(R.drawable.lock).resetViewBeforeLoading(true).cacheOnDisk(true)
                .imageScaleType(ImageScaleType.EXACTLY).bitmapConfig(Bitmap.Config.RGB_565).considerExifParams(true)
                .displayer(new FadeInBitmapDisplayer(300)).postProcessor(new BitmapProcessor() {
                    @Override
                    public Bitmap process(Bitmap bmp) {
                        return Bitmap.createScaledBitmap(bmp, 600, 410, false);
                    }
                }).build();
    }

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

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

    /**  Setting image in view pager **/
    @Override
    public Object instantiateItem(ViewGroup view, int position) {
        View imageLayout = inflater.inflate(R.layout.item_pager_image, view, false);
        assert imageLayout != null;
        ImageView imageView = (ImageView) imageLayout.findViewById(R.id.image);
        final ProgressBar spinner = (ProgressBar) imageLayout.findViewById(R.id.loading);

        /** Started loading and display*/
        ImageLoader.getInstance().displayImage(image_url[position], imageView, options,
                new SimpleImageLoadingListener() {
                    @Override
                    public void onLoadingStarted(String imageUri, View view) {
                        spinner.setVisibility(View.VISIBLE);
                    }

                    @Override
                    public void onLoadingFailed(String imageUri, View view, FailReason failReason) {
                        String message = null;
                        switch (failReason.getType()) {
                        case IO_ERROR:
                            message = "Input/Output error";
                            break;
                        case DECODING_ERROR:
                            message = "Image can't be decoded";
                            break;
                        case NETWORK_DENIED:
                            message = "Downloads are denied";
                            break;
                        case OUT_OF_MEMORY:
                            message = "Out Of Memory error";
                            break;
                        case UNKNOWN:
                            message = "Unknown error";
                            break;
                        }
                        Toast.makeText(view.getContext(), message, Toast.LENGTH_SHORT).show();

                        spinner.setVisibility(View.GONE);
                    }

                    /** Hide the spinner after the image is loaded*/
                    @Override
                    public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {
                        spinner.setVisibility(View.GONE);
                    }
                });

        /** Add the image to the viewPager*/
        view.addView(imageLayout, 0);
        return imageLayout;
    }

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

    @Override
    public void restoreState(Parcelable state, ClassLoader loader) {
    }

    @Override
    public Parcelable saveState() {
        return null;
    }
}