com.univpm.s1055802.faceplusplustester.Detect.AcquirePhoto.java Source code

Introduction

Here is the source code for com.univpm.s1055802.faceplusplustester.Detect.AcquirePhoto.java

Source

/*
 *     FacePlusPlusTester - Android application to test the FacePlusPlus' APIs
 *     Copyright (C) 2016-2020  Francesco Antonio Pileo
 *
 *     This program is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 *
 *     This program is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 *
 *     You should have received a copy of the GNU General Public License
 *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.univpm.s1055802.faceplusplustester.Detect;

import android.Manifest;
import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.provider.MediaStore;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.util.Log;

import com.univpm.s1055802.faceplusplustester.Utils.Directories;
import com.univpm.s1055802.faceplusplustester.Utils.Permissions;

import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class AcquirePhoto extends Activity {

    static final int REQUEST_TAKE_PHOTO = 3;
    static final int REQUEST_DETECT_PHOTO = 4;
    static final String AQUIRED_PHOTO = "Photo";
    static final int CAMERA_AND_WRITE_PERMISSION = 1;

    private File photoFile;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (android.os.Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP) {
            Permissions.checkPermissions(AcquirePhoto.this,
                    new String[] { Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE },
                    CAMERA_AND_WRITE_PERMISSION, new Runnable() {
                        @Override
                        public void run() {
                            Acquire();
                        }
                    });
        } else {
            Acquire();
        }
    }

    /**
     * Nelle versioni android 6.0+ avvia l'evento di cattura dopo l'acquisizione dei permessi<
     * @param requestCode
     * @param permissions
     * @param grantResults
     */
    @Override
    public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
        switch (requestCode) {
        case CAMERA_AND_WRITE_PERMISSION: {
            if (grantResults.length > 0) {
                boolean allPermission = true;
                for (int i = 0; i < grantResults.length && allPermission; i++) {
                    if (grantResults[i] != PackageManager.PERMISSION_GRANTED) {
                        allPermission = false;
                    }
                }
                if (allPermission) {
                    Acquire();
                } else {
                    finish();
                }
            } else {
                finish();
            }
            return;
        }
        }
    }

    /**
     * Richiama la fotocamera, acquisisce la foto e la salva in un file
     * @return il file salvato
     */
    private void Acquire() {
        Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        // Ensure that there's a camera activity to handle the intent
        photoFile = null;
        if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
            // Create the File where the photo should go

            try {
                photoFile = createImageFile();
            } catch (IOException ex) {
                // Error occurred while creating the File
                Log.v("alert", "file error");
            }
            // Continue only if the File was successfully created
            if (photoFile != null) {
                takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(photoFile));
                startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);
            }
        }
    }

    /**
     * Crea il file destinato alla foto acquisita
     * @return il File destinato a contenere la foto acquisita
     * @throws IOException
     */
    private File createImageFile() throws IOException {
        // Create an image file name
        String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
        String imageFileName = "FPP_" + timeStamp + "_";
        File storageDir = new File(Directories.IMAGES);
        File image = File.createTempFile(imageFileName, /* prefix */
                ".jpg", /* suffix */
                storageDir /* directory */
        );

        return image;
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        //super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == REQUEST_TAKE_PHOTO) {
            if (resultCode == RESULT_CANCELED) {
                photoFile.delete();
                setResult(Activity.RESULT_CANCELED);
            } else {
                Intent detectIntent = new Intent(this, DetectImage.class);
                detectIntent.putExtra(AQUIRED_PHOTO, photoFile.getAbsolutePath());
                startActivityForResult(detectIntent, REQUEST_DETECT_PHOTO);
            }
            finish();
        } else if (requestCode == REQUEST_DETECT_PHOTO) {
            finish();
        }
    }
}