com.microsoft.projectoxford.visionsample.helper.SelectImageActivity.java Source code

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Here is the source code for com.microsoft.projectoxford.visionsample.helper.SelectImageActivity.java

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//
// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT license.
//
// Microsoft Cognitive Services (formerly Project Oxford): https://www.microsoft.com/cognitive-services
//
// Microsoft Cognitive Services (formerly Project Oxford) GitHub:
// https://github.com/Microsoft/Cognitive-Vision-Android
//
// Copyright (c) Microsoft Corporation
// All rights reserved.
//
// MIT License:
// 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.microsoft.projectoxford.visionsample.helper;

import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.annotation.NonNull;
import android.support.v4.content.FileProvider;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.widget.TextView;

import com.microsoft.projectoxford.visionsample.R;

import java.io.File;
import java.io.IOException;

// The activity for the user to select a image and to detect faces in the image.
public class SelectImageActivity extends ActionBarActivity {
    // Flag to indicate the request of the next task to be performed
    private static final int REQUEST_TAKE_PHOTO = 0;
    private static final int REQUEST_SELECT_IMAGE_IN_ALBUM = 1;

    // The URI of photo taken from gallery
    private Uri mUriPhotoTaken;

    // File of the photo taken with camera
    private File mFilePhotoTaken;

    // When the activity is created, set all the member variables to initial state.
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_select_image);
    }

    // Save the activity state when it's going to stop.
    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putParcelable("ImageUri", mUriPhotoTaken);
    }

    // Recover the saved state when the activity is recreated.
    @Override
    protected void onRestoreInstanceState(@NonNull Bundle savedInstanceState) {
        super.onRestoreInstanceState(savedInstanceState);
        mUriPhotoTaken = savedInstanceState.getParcelable("ImageUri");
    }

    // Deal with the result of selection of the photos and faces.
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        switch (requestCode) {
        case REQUEST_TAKE_PHOTO:
            if (resultCode == RESULT_OK) {
                Intent intent = new Intent();
                intent.setData(Uri.fromFile(mFilePhotoTaken));
                setResult(RESULT_OK, intent);
                finish();
            }
            break;
        case REQUEST_SELECT_IMAGE_IN_ALBUM:
            if (resultCode == RESULT_OK) {
                Uri imageUri;
                if (data == null || data.getData() == null) {
                    imageUri = mUriPhotoTaken;
                } else {
                    imageUri = data.getData();
                }
                Intent intent = new Intent();
                intent.setData(imageUri);
                setResult(RESULT_OK, intent);
                finish();
            }

            break;
        default:
            break;
        }
    }

    // When the button of "Take a Photo with Camera" is pressed.
    public void takePhoto(View view) {
        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        if (intent.resolveActivity(getPackageManager()) != null) {
            // Save the photo taken to a temporary file.
            File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
            try {
                mFilePhotoTaken = File.createTempFile("IMG_", /* prefix */
                        ".jpg", /* suffix */
                        storageDir /* directory */
                );

                // Create the File where the photo should go
                // Continue only if the File was successfully created
                if (mFilePhotoTaken != null) {
                    mUriPhotoTaken = FileProvider.getUriForFile(this,
                            "com.microsoft.projectoxford.visionsample.fileprovider", mFilePhotoTaken);
                    intent.putExtra(MediaStore.EXTRA_OUTPUT, mUriPhotoTaken);

                    // Finally start camera activity
                    startActivityForResult(intent, REQUEST_TAKE_PHOTO);
                }
            } catch (IOException e) {
                setInfo(e.getMessage());
            }
        }
    }

    // When the button of "Select a Photo in Album" is pressed.
    public void selectImageInAlbum(View view) {
        Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
        intent.setType("mFilePhotoTaken/*");
        if (intent.resolveActivity(getPackageManager()) != null) {
            startActivityForResult(intent, REQUEST_SELECT_IMAGE_IN_ALBUM);
        }
    }

    // Set the information panel on screen.
    private void setInfo(String info) {
        TextView textView = (TextView) findViewById(R.id.info);
        textView.setText(info);
    }
}