com.grottworkshop.gwswizardpager.ui.ImageFragment.java Source code

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Here is the source code for com.grottworkshop.gwswizardpager.ui.ImageFragment.java

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/*
 * Copyright 2012 Roman Nurik
 * Modifications Copyright (C) 2015 Fred Grott(GrottWorkShop)
 *
 * 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 com.grottworkshop.gwswizardpager.ui;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.ContentValues;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.support.annotation.NonNull;
import android.support.v4.app.DialogFragment;
import android.support.v4.app.Fragment;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import com.grottworkshop.gwswizardpager.R;
import com.grottworkshop.gwswizardpager.model.Page;

/**
 * ImageFragment class
 * Created by fgrott on 8/30/2015.
 */
public class ImageFragment extends Fragment {

    private static final String NEW_IMAGE_URI = "new_image_uri";
    private static final int GALLERY_REQUEST_CODE = 0;
    private static final int CAMERA_REQUEST_CODE = 1;

    protected static final String ARG_KEY = "key";

    private PageFragmentCallbacks mCallbacks;
    private String mKey;
    private Page mPage;

    private ImageView imageView;

    private Uri mNewImageUri;

    public static ImageFragment create(String key) {
        Bundle args = new Bundle();
        args.putString(ARG_KEY, key);

        ImageFragment f = new ImageFragment();
        f.setArguments(args);
        return f;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        Bundle args = getArguments();
        mKey = args.getString(ARG_KEY);
        mPage = mCallbacks.onGetPage(mKey);

        if (savedInstanceState != null) {
            String uriString = savedInstanceState.getString(NEW_IMAGE_URI);
            if (!TextUtils.isEmpty(uriString)) {
                mNewImageUri = Uri.parse(uriString);
            }
        }
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        if (mNewImageUri != null) {
            outState.putString(NEW_IMAGE_URI, mNewImageUri.toString());
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_page_image, container, false);
        ((TextView) rootView.findViewById(android.R.id.title)).setText(mPage.getTitle());

        imageView = (ImageView) rootView.findViewById(R.id.imageView);

        String imageData = mPage.getData().getString(Page.SIMPLE_DATA_KEY);
        if (!TextUtils.isEmpty(imageData)) {
            Uri imageUri = Uri.parse(imageData);
            imageView.setImageURI(imageUri);
        } else {
            imageView.setImageResource(R.drawable.ic_person);
        }

        imageView.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                DialogFragment pickPhotoSourceDialog = new DialogFragment() {
                    @NonNull
                    @Override
                    public Dialog onCreateDialog(Bundle savedInstanceState) {
                        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
                        builder.setItems(R.array.image_photo_sources, new DialogInterface.OnClickListener() {

                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                switch (which) {
                                case 0:
                                    // Gallery
                                    Intent photoPickerIntent = new Intent(Intent.ACTION_GET_CONTENT);
                                    photoPickerIntent.setType("image/*");
                                    startActivityForResult(photoPickerIntent, GALLERY_REQUEST_CODE);
                                    break;

                                default:
                                    // Camera
                                    mNewImageUri = getActivity().getContentResolver().insert(
                                            MediaStore.Images.Media.EXTERNAL_CONTENT_URI, new ContentValues());
                                    Intent photoFromCamera = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                                    photoFromCamera.putExtra(MediaStore.EXTRA_OUTPUT, mNewImageUri);
                                    photoFromCamera.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 0);
                                    startActivityForResult(photoFromCamera, CAMERA_REQUEST_CODE);
                                    break;
                                }

                            }
                        });
                        return builder.create();
                    }
                };

                pickPhotoSourceDialog.show(getFragmentManager(), "pickPhotoSourceDialog");
            }
        });

        return rootView;
    }

    //TODO: onAttach depreciated
    @SuppressWarnings("deprecation")
    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);

        if (!(activity instanceof PageFragmentCallbacks)) {
            throw new ClassCastException("Activity must implement PageFragmentCallbacks");
        }

        mCallbacks = (PageFragmentCallbacks) activity;
    }

    @Override
    public void onDetach() {
        super.onDetach();
        mCallbacks = null;
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        switch (requestCode) {
        case CAMERA_REQUEST_CODE:
            if (resultCode == Activity.RESULT_OK) {
                imageView.setImageURI(mNewImageUri);
                writeResult();
            }
            break;
        case GALLERY_REQUEST_CODE:
            if (resultCode == Activity.RESULT_OK && data != null) {
                mNewImageUri = data.getData();
                imageView.setImageURI(mNewImageUri);
                writeResult();
            }
            break;
        }
    }

    private void writeResult() {
        mPage.getData().putString(Page.SIMPLE_DATA_KEY, (mNewImageUri != null) ? mNewImageUri.toString() : null);
        mPage.notifyDataChanged();

    }

}