com.pickr.fragments.PhotoFragment.java Source code

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Here is the source code for com.pickr.fragments.PhotoFragment.java

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/*
 * Copyright (C) 2013 Fabien Barbero Permission is hereby granted, free of
 * charge, to any person obtaining a copy of this software and associated
 * documentation files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use, copy, modify,
 * merge, publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so, subject to
 * the following conditions: The above copyright notice and this permission
 * notice shall be included in all copies or substantial portions of the
 * Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO
 * EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */
package com.pickr.fragments;

import java.net.URL;
import android.app.ActionBar;
import android.graphics.Bitmap;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.Handler;
import android.os.Handler.Callback;
import android.os.Message;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.ProgressBar;
import com.pickr.R;
import com.pickr.cache.FlickrCache;
import com.pickr.tasks.PhotoLoader;

import org.ez.flickr.api.entities.Photo;

public class PhotoFragment extends Fragment implements Callback, OnClickListener {

    public static final String PARAM_PHOTO = "photo";
    private static final String PARAM_PHOTO_URL = "photoUrl";
    //
    private final Handler mHandler;

    private URL mPhotoUrl;
    private Photo mPhoto;

    private ImageView mImageView;
    private ProgressBar mProgressBar;

    public PhotoFragment() {
        super();
        mHandler = new Handler(this);
        setRetainInstance(true);
    }

    public Photo getPhoto() {
        if (mPhoto == null) {
            mPhoto = (Photo) getArguments().getSerializable(PARAM_PHOTO);
        }
        return mPhoto;
    }

    public Bitmap getBitmap() {
        Drawable drawable = mImageView.getDrawable();
        if (drawable instanceof BitmapDrawable) {
            return ((BitmapDrawable) drawable).getBitmap();
        }
        return null;
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_photo, null);
        mImageView = (ImageView) view.findViewById(R.id.photoImageView);
        mProgressBar = (ProgressBar) view.findViewById(R.id.photoLoadingProgressBar);

        mImageView.setOnClickListener(this);
        mProgressBar.setVisibility(View.VISIBLE);

        if (savedInstanceState != null) {
            mPhoto = (Photo) savedInstanceState.getSerializable(PARAM_PHOTO);
            mPhotoUrl = (URL) savedInstanceState.getSerializable(PARAM_PHOTO_URL);
        }

        new PhotoLoader(mImageView, getPhoto(), mHandler, getActivity()).execute();

        return view;
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);

        if (outState != null) {
            if (mPhoto != null)
                outState.putSerializable(PARAM_PHOTO, mPhoto);
            if (mPhotoUrl != null)
                outState.putSerializable(PARAM_PHOTO_URL, mPhotoUrl);
        }
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();

        if (mPhotoUrl != null) {
            FlickrCache.getBitmapCache().remove(mPhotoUrl);
        }

        if (mImageView != null) {
            mImageView.setImageDrawable(null);
        }
    }

    @Override
    public void onClick(View view) {
        if (view.getId() == R.id.photoImageView) {
            ActionBar actionBar = getActivity().getActionBar();

            if (actionBar.isShowing()) {
                actionBar.hide();
            } else {
                actionBar.show();
            }
        }
    }

    @Override
    public boolean handleMessage(Message msg) {
        switch (msg.what) {

        case PhotoLoader.PHOTO_URL:
            mPhotoUrl = (URL) msg.obj;
            mProgressBar.setVisibility(View.GONE);
            return true;
        }
        return false;
    }

}