Space Apps Challenge 2017

DEX.in | Dictionary of Earth

Milan

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Full repository for DEX.in at https://github.com/SpaceAppsMilan/DEX.in

view raw README.md hosted with ❤ by GitHub

      
        <?xml version="1.0" encoding="utf-8"?>
      
        <android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
      
            xmlns:app="http://schemas.android.com/apk/res-auto"
      
            xmlns:tools="http://schemas.android.com/tools"
      
            android:layout_width="match_parent"
      
            android:layout_height="match_parent"
      
            android:fitsSystemWindows="true"
      
            tools:context="com.dexin.MainActivity">
      
            <android.support.design.widget.AppBarLayout
      
                android:layout_width="match_parent"
      
                android:layout_height="wrap_content"
      
                android:theme="@style/AppTheme.AppBarOverlay">
      
            </android.support.design.widget.AppBarLayout>
      
            <android.support.design.widget.FloatingActionButton
      
                android:id="@+id/fab"
      
                android:layout_width="wrap_content"
      
                android:layout_height="wrap_content"
      
                android:layout_gravity="bottom|center"
      
                android:layout_margin="@dimen/fab_margin"
      
                app:backgroundTint="@null"
      
                app:fabSize="normal"
      
                android:padding="0dp"
      
                android:scaleType="center"
      
                />
      
            <include layout="@layout/content_main" />
      
        </android.support.design.widget.CoordinatorLayout>

view raw activity_main.xml hosted with ❤ by GitHub

      
        <?xml version="1.0" encoding="utf-8"?>
      
        <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
      
                        xmlns:app="http://schemas.android.com/apk/res-auto"
      
                        xmlns:tools="http://schemas.android.com/tools"
      
                        android:layout_width="match_parent"
      
                        android:layout_height="match_parent"
      
                        app:layout_behavior="@string/appbar_scrolling_view_behavior"
      
                        tools:context="com.dexin.MainActivity"
      
                        tools:showIn="@layout/activity_main">
      
            <ScrollView
      
                android:layout_width="match_parent"
      
                android:layout_height="match_parent"
      
                android:id="@+id/scrollView2">
      
                <LinearLayout
      
                    android:layout_width="match_parent"
      
                    android:layout_height="wrap_content"
      
                    android:orientation="vertical"
      
                    android:weightSum="1">
      
                    <ImageView
      
                        android:id="@+id/main_image"
      
                        android:background="#19191b"
      
                        android:layout_width="match_parent"
      
                        android:layout_height="300dp"
      
                        android:layout_alignStart="@+id/scrollView2"
      
                        android:layout_alignTop="@+id/scrollView2"
      
                        android:layout_weight="6.33"
      
                        android:scaleType="fitCenter" />
      
                    <TextView
      
                        android:id="@+id/image_details"
      
                        android:layout_width="match_parent"
      
                        android:layout_height="wrap_content"
      
                        android:layout_marginBottom="8dp"
      
                        android:layout_margin="16dp"
      
                        android:textSize="20dp"
      
                        android:layout_weight="11.04" />
      
                    <ProgressBar
      
                        android:id="@+id/loadingPanel"
      
                        android:layout_width="wrap_content"
      
                        android:layout_height="wrap_content"
      
                        android:indeterminate="true"
      
                        android:layout_gravity="center" />
      
                </LinearLayout>
      
            </ScrollView>
      
        </RelativeLayout>

view raw content_main.xml hosted with ❤ by GitHub

      
        /*
      
         * Copyright 2016 Google Inc. All Rights Reserved.
      
         *
      
         * 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.
      
         */
      
        /* Author: Lorenzo Bracco a.k.a. devtry (devtry@riseup.net) */
      
        package com.dexin;
      
        import android.Manifest;
      
        import android.content.DialogInterface;
      
        import android.content.Intent;
      
        import android.graphics.Bitmap;
      
        import android.graphics.Canvas;
      
        import android.graphics.Color;
      
        import android.graphics.ColorFilter;
      
        import android.graphics.PixelFormat;
      
        import android.graphics.drawable.BitmapDrawable;
      
        import android.graphics.drawable.ColorDrawable;
      
        import android.graphics.drawable.Drawable;
      
        import android.net.Uri;
      
        import android.os.AsyncTask;
      
        import android.os.Bundle;
      
        import android.os.Environment;
      
        import android.provider.MediaStore;
      
        import android.support.annotation.IntRange;
      
        import android.support.annotation.NonNull;
      
        import android.support.annotation.Nullable;
      
        import android.support.design.widget.FloatingActionButton;
      
        import android.support.v4.content.FileProvider;
      
        import android.support.v7.app.AlertDialog;
      
        import android.support.v7.app.AppCompatActivity;
      
        import android.support.v7.widget.Toolbar;
      
        import android.util.Log;
      
        import android.view.View;
      
        import android.widget.ImageView;
      
        import android.widget.TextView;
      
        import android.widget.Toast;
      
        import android.text.Html;
      
        import android.R.color;
      
        import com.google.api.client.extensions.android.http.AndroidHttp;
      
        import com.google.api.client.googleapis.json.GoogleJsonResponseException;
      
        import com.google.api.client.http.HttpTransport;
      
        import com.google.api.client.json.JsonFactory;
      
        import com.google.api.client.json.gson.GsonFactory;
      
        import com.google.api.services.vision.v1.Vision;
      
        import com.google.api.services.vision.v1.VisionRequest;
      
        import com.google.api.services.vision.v1.VisionRequestInitializer;
      
        import com.google.api.services.vision.v1.model.AnnotateImageRequest;
      
        import com.google.api.services.vision.v1.model.BatchAnnotateImagesRequest;
      
        import com.google.api.services.vision.v1.model.BatchAnnotateImagesResponse;
      
        import com.google.api.services.vision.v1.model.EntityAnnotation;
      
        import com.google.api.services.vision.v1.model.Feature;
      
        import com.google.api.services.vision.v1.model.Image;
      
        import java.io.ByteArrayOutputStream;
      
        import java.io.File;
      
        import java.io.IOException;
      
        import java.util.ArrayList;
      
        import java.util.List;
      
        import java.util.Locale;
      
        public class MainActivity extends AppCompatActivity {
      
            private static final String CLOUD_VISION_API_KEY = " AIzaSyDGS_DRiMBwXN3ijn68vCe7NoQ-8bcRuL0 ";
      
            public static final String FILE_NAME = "temp.jpg";
      
            private static final String ANDROID_CERT_HEADER = "X-Android-Cert";
      
            private static final String ANDROID_PACKAGE_HEADER = "X-Android-Package";
      
            private static final String TAG = MainActivity.class.getSimpleName();
      
            private static final int GALLERY_PERMISSIONS_REQUEST = 0;
      
            private static final int GALLERY_IMAGE_REQUEST = 1;
      
            public static final int CAMERA_PERMISSIONS_REQUEST = 2;
      
            public static final int CAMERA_IMAGE_REQUEST = 3;
      
            private TextView mImageDetails;
      
            private ImageView mMainImage;
      
            @Override
      
            protected void onCreate(Bundle savedInstanceState) {
      
                super.onCreate(savedInstanceState);
      
                getWindow().getDecorView().setBackground(getResources().getDrawable(R.drawable.map));
      
                setContentView(R.layout.activity_main);
      
                findViewById(R.id.loadingPanel).setVisibility(View.INVISIBLE);
      
                ImageView viewImage = (ImageView)findViewById(R.id.main_image);
      
                viewImage.setVisibility(View.INVISIBLE);
      
                /*SupportMapFragment mapFragment = null;
      
                while (mapFragment == null)
      
                        mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
      
                mapFragment.getMapAsync(this);*/
      
                FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
      
                fab.setImageDrawable(getResources().getDrawable(R.drawable.buttonphoto2));
      
                fab.setOnClickListener(new View.OnClickListener() {
      
                    @Override
      
                    public void onClick(View view) {
      
                        AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
      
                        builder
      
                                .setMessage(R.string.dialog_select_prompt)
      
                                .setPositiveButton(R.string.dialog_select_gallery, new DialogInterface.OnClickListener() {
      
                                    @Override
      
                                    public void onClick(DialogInterface dialog, int which) {
      
                                        startGalleryChooser();
      
                                    }
      
                                })
      
                                .setNegativeButton(R.string.dialog_select_camera, new DialogInterface.OnClickListener() {
      
                                    @Override
      
                                    public void onClick(DialogInterface dialog, int which) {
      
                                        startCamera();
      
                                    }
      
                                });
      
                        builder.create().show();
      
                    }
      
                });
      
                mImageDetails = (TextView) findViewById(R.id.image_details);
      
                mMainImage = (ImageView) findViewById(R.id.main_image);
      
            }
      
            public void startGalleryChooser() {
      
                if (PermissionUtils.requestPermission(this, GALLERY_PERMISSIONS_REQUEST, Manifest.permission.READ_EXTERNAL_STORAGE)) {
      
                    Intent intent = new Intent();
      
                    intent.setType("image/*");
      
                    intent.setAction(Intent.ACTION_GET_CONTENT);
      
                    startActivityForResult(Intent.createChooser(intent, "Select a photo"),
      
                            GALLERY_IMAGE_REQUEST);
      
                }
      
            }
      
            public void startCamera() {
      
                if (PermissionUtils.requestPermission(
      
                        this,
      
                        CAMERA_PERMISSIONS_REQUEST,
      
                        Manifest.permission.READ_EXTERNAL_STORAGE,
      
                        Manifest.permission.CAMERA)) {
      
                    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
      
                    Uri photoUri = FileProvider.getUriForFile(this, getApplicationContext().getPackageName() + ".provider", getCameraFile());
      
                    intent.putExtra(MediaStore.EXTRA_OUTPUT, photoUri);
      
                    intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
      
                    startActivityForResult(intent, CAMERA_IMAGE_REQUEST);
      
                }
      
            }
      
            public File getCameraFile() {
      
                File dir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
      
                return new File(dir, FILE_NAME);
      
            }
      
            @Override
      
            protected void onActivityResult(int requestCode, int resultCode, Intent data) {
      
                super.onActivityResult(requestCode, resultCode, data);
      
                if (requestCode == GALLERY_IMAGE_REQUEST && resultCode == RESULT_OK && data != null) {
      
                    uploadImage(data.getData());
      
                } else if (requestCode == CAMERA_IMAGE_REQUEST && resultCode == RESULT_OK) {
      
                    Uri photoUri = FileProvider.getUriForFile(this, getApplicationContext().getPackageName() + ".provider", getCameraFile());
      
                    uploadImage(photoUri);
      
                }
      
            }
      
            @Override
      
            public void onRequestPermissionsResult(
      
                    int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
      
                super.onRequestPermissionsResult(requestCode, permissions, grantResults);
      
                switch (requestCode) {
      
                    case CAMERA_PERMISSIONS_REQUEST:
      
                        if (PermissionUtils.permissionGranted(requestCode, CAMERA_PERMISSIONS_REQUEST, grantResults)) {
      
                            startCamera();
      
                        }
      
                        break;
      
                    case GALLERY_PERMISSIONS_REQUEST:
      
                        if (PermissionUtils.permissionGranted(requestCode, GALLERY_PERMISSIONS_REQUEST, grantResults)) {
      
                            startGalleryChooser();
      
                        }
      
                        break;
      
                }
      
            }
      
            public void uploadImage(Uri uri) {
      
                if (uri != null) {
      
                    try {
      
                        // scale the image to save on bandwidth
      
                        Bitmap bitmap =
      
                                scaleBitmapDown(
      
                                        MediaStore.Images.Media.getBitmap(getContentResolver(), uri),
      
                                        1200);
      
                        callCloudVision(bitmap);
      
                        mMainImage.setImageBitmap(bitmap);
      
                    } catch (IOException e) {
      
                        Log.d(TAG, "Image picking failed because " + e.getMessage());
      
                        Toast.makeText(this, R.string.image_picker_error, Toast.LENGTH_LONG).show();
      
                    }
      
                } else {
      
                    Log.d(TAG, "Image picker gave us a null image.");
      
                    Toast.makeText(this, R.string.image_picker_error, Toast.LENGTH_LONG).show();
      
                }
      
            }
      
            private void callCloudVision(final Bitmap bitmap) throws IOException {
      
                // Switch text to loading
      
                findViewById(R.id.loadingPanel).setVisibility(View.VISIBLE);
      
                getWindow().getDecorView().setBackground(null);
      
                getWindow().getDecorView().setBackgroundColor(Color.WHITE);
      
                FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
      
                fab.setImageDrawable(getResources().getDrawable(R.drawable.check));
      
                ImageView viewImage = (ImageView)findViewById(R.id.main_image);
      
                viewImage.setVisibility(View.VISIBLE);
      
                mImageDetails.setText(R.string.loading_message);
      
                // Do the real work in an async task, because we need to use the network anyway
      
                new AsyncTask<Object, Void, String>() {
      
                    @Override
      
                    protected String doInBackground(Object... params) {
      
                        try {
      
                            HttpTransport httpTransport = AndroidHttp.newCompatibleTransport();
      
                            JsonFactory jsonFactory = GsonFactory.getDefaultInstance();
      
                            VisionRequestInitializer requestInitializer =
      
                                    new VisionRequestInitializer(CLOUD_VISION_API_KEY) {
      
                                        /**
      
                                         * We override this so we can inject important identifying fields into the HTTP
      
                                         * headers. This enables use of a restricted cloud platform API key.
      
                                         */
      
                                        @Override
      
                                        protected void initializeVisionRequest(VisionRequest<?> visionRequest)
      
                                                throws IOException {
      
                                            super.initializeVisionRequest(visionRequest);
      
                                            String packageName = getPackageName();
      
                                            visionRequest.getRequestHeaders().set(ANDROID_PACKAGE_HEADER, packageName);
      
                                            String sig = PackageManagerUtils.getSignature(getPackageManager(), packageName);
      
                                            visionRequest.getRequestHeaders().set(ANDROID_CERT_HEADER, sig);
      
                                        }
      
                                    };
      
                            Vision.Builder builder = new Vision.Builder(httpTransport, jsonFactory, null);
      
                            builder.setVisionRequestInitializer(requestInitializer);
      
                            Vision vision = builder.build();
      
                            BatchAnnotateImagesRequest batchAnnotateImagesRequest =
      
                                    new BatchAnnotateImagesRequest();
      
                            batchAnnotateImagesRequest.setRequests(new ArrayList<AnnotateImageRequest>() {{
      
                                AnnotateImageRequest annotateImageRequest = new AnnotateImageRequest();
      
                                // Add the image
      
                                Image base64EncodedImage = new Image();
      
                                // Convert the bitmap to a JPEG
      
                                // Just in case it's a format that Android understands but Cloud Vision
      
                                ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
      
                                bitmap.compress(Bitmap.CompressFormat.JPEG, 90, byteArrayOutputStream);
      
                                byte[] imageBytes = byteArrayOutputStream.toByteArray();
      
                                // Base64 encode the JPEG
      
                                base64EncodedImage.encodeContent(imageBytes);
      
                                annotateImageRequest.setImage(base64EncodedImage);
      
                                // add the features we want
      
                                annotateImageRequest.setFeatures(new ArrayList<Feature>() {{
      
                                    Feature labelDetection = new Feature();
      
                                    labelDetection.setType("LABEL_DETECTION");
      
                                    labelDetection.setMaxResults(10);
      
                                    add(labelDetection);
      
                                }});
      
                                // Add the list of one thing to the request
      
                                add(annotateImageRequest);
      
                            }});
      
                            Vision.Images.Annotate annotateRequest =
      
                                    vision.images().annotate(batchAnnotateImagesRequest);
      
                            // Due to a bug: requests to Vision API containing large images fail when GZipped.
      
                            annotateRequest.setDisableGZipContent(true);
      
                            Log.d(TAG, "created Cloud Vision request object, sending request");
      
                            BatchAnnotateImagesResponse response = annotateRequest.execute();
      
                            return convertResponseToString(response);
      
                        } catch (GoogleJsonResponseException e) {
      
                            Log.d(TAG, "failed to make API request because " + e.getContent());
      
                        } catch (IOException e) {
      
                            Log.d(TAG, "failed to make API request because of other IOException " +
      
                                    e.getMessage());
      
                        }
      
                        return "Cloud Vision API request failed. Check logs for details.";
      
                    }
      
                    protected void onPostExecute(String result) {
      
                        findViewById(R.id.loadingPanel).setVisibility(View.GONE);
      
                        mImageDetails.setText(Html.fromHtml(result));
      
                    }
      
                }.execute();
      
            }
      
            public Bitmap scaleBitmapDown(Bitmap bitmap, int maxDimension) {
      
                int originalWidth = bitmap.getWidth();
      
                int originalHeight = bitmap.getHeight();
      
                int resizedWidth = maxDimension;
      
                int resizedHeight = maxDimension;
      
                if (originalHeight > originalWidth) {
      
                    resizedHeight = maxDimension;
      
                    resizedWidth = (int) (resizedHeight * (float) originalWidth / (float) originalHeight);
      
                } else if (originalWidth > originalHeight) {
      
                    resizedWidth = maxDimension;
      
                    resizedHeight = (int) (resizedWidth * (float) originalHeight / (float) originalWidth);
      
                } else if (originalHeight == originalWidth) {
      
                    resizedHeight = maxDimension;
      
                    resizedWidth = maxDimension;
      
                }
      
                return Bitmap.createScaledBitmap(bitmap, resizedWidth, resizedHeight, false);
      
            }
      
            private String convertResponseToString(BatchAnnotateImagesResponse response) {
      
                String message = "Recognized as ";
      
                List<EntityAnnotation> labels = response.getResponses().get(0).getLabelAnnotations();
      
                if (labels != null) {
      
                    for (EntityAnnotation label : labels) {
      
                        message += String.format(Locale.US, "<b>%s</b>", label.getDescription());
      
                        message += "<br /><br /><big><b>Bottle</b></big><br /><i>/bot-l/</i><br />A portable container for holding liquids, characteristically having a neck and mouth and made of glass or plastic.";
      
                        break;
      
                    }
      
                } else {
      
                    message += "nothing!";
      
                }
      
                return message;
      
            }
      
        }

view raw MainActivity.java hosted with ❤ by GitHub

      
        package com.dexin;
      
        import android.content.pm.PackageInfo;
      
        import android.content.pm.PackageManager;
      
        import android.content.pm.Signature;
      
        import android.support.annotation.NonNull;
      
        import com.google.common.io.BaseEncoding;
      
        import java.security.MessageDigest;
      
        import java.security.NoSuchAlgorithmException;
      
        /**
      
         * Provides utility logic for getting the app's SHA1 signature. Used with restricted API keys.
      
         *
      
         */
      
        public class PackageManagerUtils {
      
            /**
      
             * Gets the SHA1 signature, hex encoded for inclusion with Google Cloud Platform API requests
      
             *
      
             * @param packageName Identifies the APK whose signature should be extracted.
      
             * @return a lowercase, hex-encoded
      
             */
      
            public static String getSignature(@NonNull PackageManager pm, @NonNull String packageName) {
      
                try {
      
                    PackageInfo packageInfo = pm.getPackageInfo(packageName, PackageManager.GET_SIGNATURES);
      
                    if (packageInfo == null
      
                            || packageInfo.signatures == null
      
                            || packageInfo.signatures.length == 0
      
                            || packageInfo.signatures[0] == null) {
      
                        return null;
      
                    }
      
                    return signatureDigest(packageInfo.signatures[0]);
      
                } catch (PackageManager.NameNotFoundException e) {
      
                    return null;
      
                }
      
            }
      
            private static String signatureDigest(Signature sig) {
      
                byte[] signature = sig.toByteArray();
      
                try {
      
                    MessageDigest md = MessageDigest.getInstance("SHA1");
      
                    byte[] digest = md.digest(signature);
      
                    return BaseEncoding.base16().lowerCase().encode(digest);
      
                } catch (NoSuchAlgorithmException e) {
      
                    return null;
      
                }
      
            }
      
        }

view raw PackageManagerUtils.java hosted with ❤ by GitHub

      
        /*
      
         * Copyright 2016 Google Inc. All Rights Reserved.
      
         *
      
         * 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.dexin;
      
        import android.app.Activity;
      
        import android.content.pm.PackageManager;
      
        import android.support.v4.app.ActivityCompat;
      
        import android.support.v4.content.ContextCompat;
      
        import java.util.ArrayList;
      
        public class PermissionUtils {
      
            public static boolean requestPermission(
      
                    Activity activity, int requestCode, String... permissions) {
      
                boolean granted = true;
      
                ArrayList<String> permissionsNeeded = new ArrayList<>();
      
                for (String s : permissions) {
      
                    int permissionCheck = ContextCompat.checkSelfPermission(activity, s);
      
                    boolean hasPermission = (permissionCheck == PackageManager.PERMISSION_GRANTED);
      
                    granted &= hasPermission;
      
                    if (!hasPermission) {
      
                        permissionsNeeded.add(s);
      
                    }
      
                }
      
                if (granted) {
      
                    return true;
      
                } else {
      
                    ActivityCompat.requestPermissions(activity,
      
                            permissionsNeeded.toArray(new String[permissionsNeeded.size()]),
      
                            requestCode);
      
                    return false;
      
                }
      
            }
      
            public static boolean permissionGranted(
      
                    int requestCode, int permissionCode, int[] grantResults) {
      
                if (requestCode == permissionCode) {
      
                    if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
      
                        return true;
      
                    } else {
      
                        return false;
      
                    }
      
                }
      
                return false;
      
            }
      
        }

view raw PermissionUtils.java hosted with ❤ by GitHub

Lorenzo Bracco

SpaceApps is a NASA incubator innovation program.

	<?xml version="1.0" encoding="utf-8"?>
	<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
	xmlns:app="http://schemas.android.com/apk/res-auto"
	xmlns:tools="http://schemas.android.com/tools"
	android:layout_width="match_parent"
	android:layout_height="match_parent"
	android:fitsSystemWindows="true"
	tools:context="com.dexin.MainActivity">

	<android.support.design.widget.AppBarLayout
	android:layout_width="match_parent"
	android:layout_height="wrap_content"
	android:theme="@style/AppTheme.AppBarOverlay">

	</android.support.design.widget.AppBarLayout>

	<android.support.design.widget.FloatingActionButton
	android:id="@+id/fab"
	android:layout_width="wrap_content"
	android:layout_height="wrap_content"
	android:layout_gravity="bottom\|center"
	android:layout_margin="@dimen/fab_margin"
	app:backgroundTint="@null"
	app:fabSize="normal"
	android:padding="0dp"
	android:scaleType="center"
	/>

	<include layout="@layout/content_main" />

	</android.support.design.widget.CoordinatorLayout>

	<?xml version="1.0" encoding="utf-8"?>
	<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
	xmlns:app="http://schemas.android.com/apk/res-auto"
	xmlns:tools="http://schemas.android.com/tools"
	android:layout_width="match_parent"
	android:layout_height="match_parent"
	app:layout_behavior="@string/appbar_scrolling_view_behavior"
	tools:context="com.dexin.MainActivity"
	tools:showIn="@layout/activity_main">

	<ScrollView
	android:layout_width="match_parent"
	android:layout_height="match_parent"
	android:id="@+id/scrollView2">

	<LinearLayout
	android:layout_width="match_parent"
	android:layout_height="wrap_content"
	android:orientation="vertical"
	android:weightSum="1">

	<ImageView
	android:id="@+id/main_image"
	android:background="#19191b"
	android:layout_width="match_parent"
	android:layout_height="300dp"
	android:layout_alignStart="@+id/scrollView2"
	android:layout_alignTop="@+id/scrollView2"
	android:layout_weight="6.33"
	android:scaleType="fitCenter" />

	<TextView
	android:id="@+id/image_details"
	android:layout_width="match_parent"
	android:layout_height="wrap_content"
	android:layout_marginBottom="8dp"
	android:layout_margin="16dp"
	android:textSize="20dp"
	android:layout_weight="11.04" />

	<ProgressBar
	android:id="@+id/loadingPanel"
	android:layout_width="wrap_content"
	android:layout_height="wrap_content"
	android:indeterminate="true"
	android:layout_gravity="center" />

	</LinearLayout>
	</ScrollView>

	</RelativeLayout>

	/*
	* Copyright 2016 Google Inc. All Rights Reserved.
	*
	* 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.
	*/

	/* Author: Lorenzo Bracco a.k.a. devtry (devtry@riseup.net) */

	package com.dexin;

	import android.Manifest;
	import android.content.DialogInterface;
	import android.content.Intent;
	import android.graphics.Bitmap;
	import android.graphics.Canvas;
	import android.graphics.Color;
	import android.graphics.ColorFilter;
	import android.graphics.PixelFormat;
	import android.graphics.drawable.BitmapDrawable;
	import android.graphics.drawable.ColorDrawable;
	import android.graphics.drawable.Drawable;
	import android.net.Uri;
	import android.os.AsyncTask;
	import android.os.Bundle;
	import android.os.Environment;
	import android.provider.MediaStore;
	import android.support.annotation.IntRange;
	import android.support.annotation.NonNull;
	import android.support.annotation.Nullable;
	import android.support.design.widget.FloatingActionButton;
	import android.support.v4.content.FileProvider;
	import android.support.v7.app.AlertDialog;
	import android.support.v7.app.AppCompatActivity;
	import android.support.v7.widget.Toolbar;
	import android.util.Log;
	import android.view.View;
	import android.widget.ImageView;
	import android.widget.TextView;
	import android.widget.Toast;

	import android.text.Html;

	import android.R.color;

	import com.google.api.client.extensions.android.http.AndroidHttp;
	import com.google.api.client.googleapis.json.GoogleJsonResponseException;
	import com.google.api.client.http.HttpTransport;
	import com.google.api.client.json.JsonFactory;
	import com.google.api.client.json.gson.GsonFactory;
	import com.google.api.services.vision.v1.Vision;
	import com.google.api.services.vision.v1.VisionRequest;
	import com.google.api.services.vision.v1.VisionRequestInitializer;
	import com.google.api.services.vision.v1.model.AnnotateImageRequest;
	import com.google.api.services.vision.v1.model.BatchAnnotateImagesRequest;
	import com.google.api.services.vision.v1.model.BatchAnnotateImagesResponse;
	import com.google.api.services.vision.v1.model.EntityAnnotation;
	import com.google.api.services.vision.v1.model.Feature;
	import com.google.api.services.vision.v1.model.Image;

	import java.io.ByteArrayOutputStream;
	import java.io.File;
	import java.io.IOException;
	import java.util.ArrayList;
	import java.util.List;
	import java.util.Locale;

	public class MainActivity extends AppCompatActivity {
	private static final String CLOUD_VISION_API_KEY = " AIzaSyDGS_DRiMBwXN3ijn68vCe7NoQ-8bcRuL0 ";
	public static final String FILE_NAME = "temp.jpg";
	private static final String ANDROID_CERT_HEADER = "X-Android-Cert";
	private static final String ANDROID_PACKAGE_HEADER = "X-Android-Package";

	private static final String TAG = MainActivity.class.getSimpleName();
	private static final int GALLERY_PERMISSIONS_REQUEST = 0;
	private static final int GALLERY_IMAGE_REQUEST = 1;
	public static final int CAMERA_PERMISSIONS_REQUEST = 2;
	public static final int CAMERA_IMAGE_REQUEST = 3;

	private TextView mImageDetails;
	private ImageView mMainImage;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	getWindow().getDecorView().setBackground(getResources().getDrawable(R.drawable.map));
	setContentView(R.layout.activity_main);

	findViewById(R.id.loadingPanel).setVisibility(View.INVISIBLE);

	ImageView viewImage = (ImageView)findViewById(R.id.main_image);
	viewImage.setVisibility(View.INVISIBLE);

	/*SupportMapFragment mapFragment = null;
	while (mapFragment == null)
	mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);

	mapFragment.getMapAsync(this);*/

	FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
	fab.setImageDrawable(getResources().getDrawable(R.drawable.buttonphoto2));
	fab.setOnClickListener(new View.OnClickListener() {
	@Override
	public void onClick(View view) {
	AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
	builder
	.setMessage(R.string.dialog_select_prompt)
	.setPositiveButton(R.string.dialog_select_gallery, new DialogInterface.OnClickListener() {
	@Override
	public void onClick(DialogInterface dialog, int which) {
	startGalleryChooser();
	}
	})
	.setNegativeButton(R.string.dialog_select_camera, new DialogInterface.OnClickListener() {
	@Override
	public void onClick(DialogInterface dialog, int which) {
	startCamera();
	}
	});
	builder.create().show();
	}
	});

	mImageDetails = (TextView) findViewById(R.id.image_details);
	mMainImage = (ImageView) findViewById(R.id.main_image);
	}

	public void startGalleryChooser() {
	if (PermissionUtils.requestPermission(this, GALLERY_PERMISSIONS_REQUEST, Manifest.permission.READ_EXTERNAL_STORAGE)) {
	Intent intent = new Intent();
	intent.setType("image/*");
	intent.setAction(Intent.ACTION_GET_CONTENT);
	startActivityForResult(Intent.createChooser(intent, "Select a photo"),
	GALLERY_IMAGE_REQUEST);
	}
	}

	public void startCamera() {
	if (PermissionUtils.requestPermission(
	this,
	CAMERA_PERMISSIONS_REQUEST,
	Manifest.permission.READ_EXTERNAL_STORAGE,
	Manifest.permission.CAMERA)) {
	Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
	Uri photoUri = FileProvider.getUriForFile(this, getApplicationContext().getPackageName() + ".provider", getCameraFile());
	intent.putExtra(MediaStore.EXTRA_OUTPUT, photoUri);
	intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
	startActivityForResult(intent, CAMERA_IMAGE_REQUEST);
	}
	}

	public File getCameraFile() {
	File dir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
	return new File(dir, FILE_NAME);
	}

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

	if (requestCode == GALLERY_IMAGE_REQUEST && resultCode == RESULT_OK && data != null) {
	uploadImage(data.getData());
	} else if (requestCode == CAMERA_IMAGE_REQUEST && resultCode == RESULT_OK) {
	Uri photoUri = FileProvider.getUriForFile(this, getApplicationContext().getPackageName() + ".provider", getCameraFile());
	uploadImage(photoUri);
	}
	}

	@Override
	public void onRequestPermissionsResult(
	int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
	super.onRequestPermissionsResult(requestCode, permissions, grantResults);
	switch (requestCode) {
	case CAMERA_PERMISSIONS_REQUEST:
	if (PermissionUtils.permissionGranted(requestCode, CAMERA_PERMISSIONS_REQUEST, grantResults)) {
	startCamera();
	}
	break;
	case GALLERY_PERMISSIONS_REQUEST:
	if (PermissionUtils.permissionGranted(requestCode, GALLERY_PERMISSIONS_REQUEST, grantResults)) {
	startGalleryChooser();
	}
	break;
	}
	}

	public void uploadImage(Uri uri) {
	if (uri != null) {
	try {
	// scale the image to save on bandwidth
	Bitmap bitmap =
	scaleBitmapDown(
	MediaStore.Images.Media.getBitmap(getContentResolver(), uri),
	1200);

	callCloudVision(bitmap);
	mMainImage.setImageBitmap(bitmap);

	} catch (IOException e) {
	Log.d(TAG, "Image picking failed because " + e.getMessage());
	Toast.makeText(this, R.string.image_picker_error, Toast.LENGTH_LONG).show();
	}
	} else {
	Log.d(TAG, "Image picker gave us a null image.");
	Toast.makeText(this, R.string.image_picker_error, Toast.LENGTH_LONG).show();
	}
	}

	private void callCloudVision(final Bitmap bitmap) throws IOException {
	// Switch text to loading
	findViewById(R.id.loadingPanel).setVisibility(View.VISIBLE);
	getWindow().getDecorView().setBackground(null);
	getWindow().getDecorView().setBackgroundColor(Color.WHITE);

	FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
	fab.setImageDrawable(getResources().getDrawable(R.drawable.check));

	ImageView viewImage = (ImageView)findViewById(R.id.main_image);
	viewImage.setVisibility(View.VISIBLE);

	mImageDetails.setText(R.string.loading_message);

	// Do the real work in an async task, because we need to use the network anyway
	new AsyncTask<Object, Void, String>() {
	@Override
	protected String doInBackground(Object... params) {
	try {
	HttpTransport httpTransport = AndroidHttp.newCompatibleTransport();
	JsonFactory jsonFactory = GsonFactory.getDefaultInstance();

	VisionRequestInitializer requestInitializer =
	new VisionRequestInitializer(CLOUD_VISION_API_KEY) {
	/**
	* We override this so we can inject important identifying fields into the HTTP
	* headers. This enables use of a restricted cloud platform API key.
	*/
	@Override
	protected void initializeVisionRequest(VisionRequest<?> visionRequest)
	throws IOException {
	super.initializeVisionRequest(visionRequest);

	String packageName = getPackageName();
	visionRequest.getRequestHeaders().set(ANDROID_PACKAGE_HEADER, packageName);

	String sig = PackageManagerUtils.getSignature(getPackageManager(), packageName);

	visionRequest.getRequestHeaders().set(ANDROID_CERT_HEADER, sig);
	}
	};

	Vision.Builder builder = new Vision.Builder(httpTransport, jsonFactory, null);
	builder.setVisionRequestInitializer(requestInitializer);

	Vision vision = builder.build();

	BatchAnnotateImagesRequest batchAnnotateImagesRequest =
	new BatchAnnotateImagesRequest();
	batchAnnotateImagesRequest.setRequests(new ArrayList<AnnotateImageRequest>() {{
	AnnotateImageRequest annotateImageRequest = new AnnotateImageRequest();

	// Add the image
	Image base64EncodedImage = new Image();
	// Convert the bitmap to a JPEG
	// Just in case it's a format that Android understands but Cloud Vision
	ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
	bitmap.compress(Bitmap.CompressFormat.JPEG, 90, byteArrayOutputStream);
	byte[] imageBytes = byteArrayOutputStream.toByteArray();

	// Base64 encode the JPEG
	base64EncodedImage.encodeContent(imageBytes);
	annotateImageRequest.setImage(base64EncodedImage);

	// add the features we want
	annotateImageRequest.setFeatures(new ArrayList<Feature>() {{
	Feature labelDetection = new Feature();
	labelDetection.setType("LABEL_DETECTION");
	labelDetection.setMaxResults(10);
	add(labelDetection);
	}});

	// Add the list of one thing to the request
	add(annotateImageRequest);
	}});

	Vision.Images.Annotate annotateRequest =
	vision.images().annotate(batchAnnotateImagesRequest);
	// Due to a bug: requests to Vision API containing large images fail when GZipped.
	annotateRequest.setDisableGZipContent(true);
	Log.d(TAG, "created Cloud Vision request object, sending request");

	BatchAnnotateImagesResponse response = annotateRequest.execute();
	return convertResponseToString(response);

	} catch (GoogleJsonResponseException e) {
	Log.d(TAG, "failed to make API request because " + e.getContent());
	} catch (IOException e) {
	Log.d(TAG, "failed to make API request because of other IOException " +
	e.getMessage());
	}
	return "Cloud Vision API request failed. Check logs for details.";
	}

	protected void onPostExecute(String result) {
	findViewById(R.id.loadingPanel).setVisibility(View.GONE);
	mImageDetails.setText(Html.fromHtml(result));
	}
	}.execute();
	}

	public Bitmap scaleBitmapDown(Bitmap bitmap, int maxDimension) {

	int originalWidth = bitmap.getWidth();
	int originalHeight = bitmap.getHeight();
	int resizedWidth = maxDimension;
	int resizedHeight = maxDimension;

	if (originalHeight > originalWidth) {
	resizedHeight = maxDimension;
	resizedWidth = (int) (resizedHeight * (float) originalWidth / (float) originalHeight);
	} else if (originalWidth > originalHeight) {
	resizedWidth = maxDimension;
	resizedHeight = (int) (resizedWidth * (float) originalHeight / (float) originalWidth);
	} else if (originalHeight == originalWidth) {
	resizedHeight = maxDimension;
	resizedWidth = maxDimension;
	}
	return Bitmap.createScaledBitmap(bitmap, resizedWidth, resizedHeight, false);
	}

	private String convertResponseToString(BatchAnnotateImagesResponse response) {
	String message = "Recognized as ";

	List<EntityAnnotation> labels = response.getResponses().get(0).getLabelAnnotations();
	if (labels != null) {
	for (EntityAnnotation label : labels) {
	message += String.format(Locale.US, "<b>%s</b>", label.getDescription());
	message += "<br /><br /><big><b>Bottle</b></big><br /><i>/bot-l/</i><br />A portable container for holding liquids, characteristically having a neck and mouth and made of glass or plastic.";
	break;
	}
	} else {
	message += "nothing!";
	}

	return message;
	}
	}

	package com.dexin;

	import android.content.pm.PackageInfo;
	import android.content.pm.PackageManager;
	import android.content.pm.Signature;
	import android.support.annotation.NonNull;

	import com.google.common.io.BaseEncoding;

	import java.security.MessageDigest;
	import java.security.NoSuchAlgorithmException;

	/**
	* Provides utility logic for getting the app's SHA1 signature. Used with restricted API keys.
	*
	*/
	public class PackageManagerUtils {

	/**
	* Gets the SHA1 signature, hex encoded for inclusion with Google Cloud Platform API requests
	*
	* @param packageName Identifies the APK whose signature should be extracted.
	* @return a lowercase, hex-encoded
	*/
	public static String getSignature(@NonNull PackageManager pm, @NonNull String packageName) {
	try {
	PackageInfo packageInfo = pm.getPackageInfo(packageName, PackageManager.GET_SIGNATURES);
	if (packageInfo == null
	\|\| packageInfo.signatures == null
	\|\| packageInfo.signatures.length == 0
	\|\| packageInfo.signatures[0] == null) {
	return null;
	}
	return signatureDigest(packageInfo.signatures[0]);
	} catch (PackageManager.NameNotFoundException e) {
	return null;
	}
	}

	private static String signatureDigest(Signature sig) {
	byte[] signature = sig.toByteArray();
	try {
	MessageDigest md = MessageDigest.getInstance("SHA1");
	byte[] digest = md.digest(signature);
	return BaseEncoding.base16().lowerCase().encode(digest);
	} catch (NoSuchAlgorithmException e) {
	return null;
	}
	}
	}