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210 changes: 209 additions & 1 deletion
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app/src/main/java/tk/shivamgoyal/affekt/MainActivity.java
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package tk.shivamgoyal.affekt; | ||
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import android.content.Intent; | ||
import android.content.pm.PackageManager; | ||
import android.database.Cursor; | ||
import android.graphics.Bitmap; | ||
import android.graphics.BitmapFactory; | ||
import android.graphics.drawable.BitmapDrawable; | ||
import android.net.Uri; | ||
import android.os.AsyncTask; | ||
import android.os.StrictMode; | ||
import android.provider.MediaStore; | ||
import android.support.v4.app.ActivityCompat; | ||
import android.support.v4.content.ContextCompat; | ||
import android.support.v7.app.AppCompatActivity; | ||
import android.os.Bundle; | ||
import android.view.View; | ||
import android.widget.ImageView; | ||
import android.widget.TextView; | ||
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import org.json.JSONArray; | ||
import org.json.JSONException; | ||
import org.json.JSONObject; | ||
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import java.io.ByteArrayOutputStream; | ||
import java.net.URI; | ||
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import cz.msebera.android.httpclient.HttpEntity; | ||
import cz.msebera.android.httpclient.HttpResponse; | ||
import cz.msebera.android.httpclient.client.HttpClient; | ||
import cz.msebera.android.httpclient.client.methods.HttpPost; | ||
import cz.msebera.android.httpclient.client.utils.URIBuilder; | ||
import cz.msebera.android.httpclient.entity.ByteArrayEntity; | ||
import cz.msebera.android.httpclient.impl.client.HttpClients; | ||
import cz.msebera.android.httpclient.util.EntityUtils; | ||
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import static android.Manifest.permission.READ_EXTERNAL_STORAGE; | ||
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public class MainActivity extends AppCompatActivity { | ||
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private ImageView imageView; // variable to hold the image view in our activity_main.xml | ||
private TextView resultText; // variable to hold the text view in our activity_main.xml | ||
private static final int RESULT_LOAD_IMAGE = 100; | ||
private static final int REQUEST_PERMISSION_CODE = 200; | ||
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@Override | ||
protected void onCreate(Bundle savedInstanceState) { | ||
super.onCreate(savedInstanceState); | ||
setContentView(R.layout.activity_main); | ||
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// initiate our image view and text view | ||
imageView = (ImageView) findViewById(R.id.imageView); | ||
resultText = (TextView) findViewById(R.id.resultText); | ||
} | ||
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// when the "GET EMOTION" Button is clicked this function is called | ||
public void getEmotion(View view) { | ||
// run the GetEmotionCall class in the background | ||
GetEmotionCall emotionCall = new GetEmotionCall(imageView); | ||
emotionCall.execute(); | ||
} | ||
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// when the "GET IMAGE" Button is clicked this function is called | ||
public void getImage(View view) { | ||
// check if user has given us permission to access the gallery | ||
if(checkPermission()) { | ||
Intent choosePhotoIntent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI); | ||
startActivityForResult(choosePhotoIntent, RESULT_LOAD_IMAGE); | ||
} | ||
else { | ||
requestPermission(); | ||
} | ||
} | ||
} | ||
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// This function gets the selected picture from the gallery and shows it on the image view | ||
protected void onActivityResult(int requestCode, int resultCode, Intent data) { | ||
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// get the photo URI from the gallery, find the file path from URI and send the file path to ConfirmPhoto | ||
if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data) { | ||
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Uri selectedImage = data.getData(); | ||
String[] filePathColumn = { MediaStore.Images.Media.DATA }; | ||
Cursor cursor = getContentResolver().query(selectedImage,filePathColumn, null, null, null); | ||
cursor.moveToFirst(); | ||
int columnIndex = cursor.getColumnIndex(filePathColumn[0]); | ||
// a string variable which will store the path to the image in the gallery | ||
String picturePath= cursor.getString(columnIndex); | ||
((Cursor) cursor).close(); | ||
Bitmap bitmap = BitmapFactory.decodeFile(picturePath); | ||
imageView.setImageBitmap(bitmap); | ||
} | ||
} | ||
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// convert image to base 64 so that we can send the image to Emotion API | ||
public byte[] toBase64(ImageView imgPreview) { | ||
Bitmap bm = ((BitmapDrawable) imgPreview.getDrawable()).getBitmap(); | ||
ByteArrayOutputStream baos = new ByteArrayOutputStream(); | ||
bm.compress(Bitmap.CompressFormat.JPEG, 100, baos); //bm is the bitmap object | ||
return baos.toByteArray(); | ||
} | ||
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// if permission is not given we get permission | ||
private void requestPermission() { | ||
ActivityCompat.requestPermissions(MainActivity.this,new String[]{READ_EXTERNAL_STORAGE}, REQUEST_PERMISSION_CODE); | ||
} | ||
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public boolean checkPermission() { | ||
int result = ContextCompat.checkSelfPermission(getApplicationContext(),READ_EXTERNAL_STORAGE); | ||
return result == PackageManager.PERMISSION_GRANTED; | ||
} | ||
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// asynchronous class which makes the API call in the background | ||
private class GetEmotionCall extends AsyncTask<Void, Void, String> { | ||
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private final ImageView img; | ||
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GetEmotionCall(ImageView img) { | ||
this.img = img; | ||
} | ||
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// this function is called before the API call is made | ||
@Override | ||
protected void onPreExecute() { | ||
super.onPreExecute(); | ||
resultText.setText("Getting results..."); | ||
} | ||
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// this function is called when the API call is made | ||
@Override | ||
protected String doInBackground(Void... params) { | ||
HttpClient httpclient = HttpClients.createDefault(); | ||
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build(); | ||
StrictMode.setThreadPolicy(policy); | ||
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try { | ||
URIBuilder builder = new URIBuilder("https://westcentralus.api.cognitive.microsoft.com/face/v1.0/detect"); | ||
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URI uri = builder.build(); | ||
HttpPost request = new HttpPost(uri); | ||
request.setHeader("Content-Type", "application/octet-stream"); | ||
request.setHeader("Ocp-Apim-Subscription-Key", "0365c14f89e5425c879836362113bca4"); | ||
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// Request body.The parameter of setEntity converts the image to base64 | ||
request.setEntity(new ByteArrayEntity(toBase64(img))); | ||
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// getting a response and assigning it to the string res | ||
HttpResponse response = httpclient.execute(request); | ||
HttpEntity entity = response.getEntity(); | ||
String res = EntityUtils.toString(entity); | ||
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return res; | ||
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} | ||
catch (Exception e){ | ||
return "null"; | ||
} | ||
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} | ||
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// this function is called when we get a result from the API call | ||
@Override | ||
protected void onPostExecute(String result) { | ||
JSONArray jsonArray = null; | ||
try { | ||
// convert the string to JSONArray | ||
jsonArray = new JSONArray(result); | ||
String emotions = ""; | ||
// get the scores object from the results | ||
for(int i = 0;i<jsonArray.length();i++) { | ||
JSONObject jsonObject = new JSONObject(jsonArray.get(i).toString()); | ||
JSONObject scores = jsonObject.getJSONObject("scores"); | ||
double max = 0; | ||
String emotion = ""; | ||
for (int j = 0; j < scores.names().length(); j++) { | ||
if (scores.getDouble(scores.names().getString(j)) > max) { | ||
max = scores.getDouble(scores.names().getString(j)); | ||
emotion = scores.names().getString(j); | ||
} | ||
} | ||
emotions += emotion + "\n"; | ||
} | ||
resultText.setText(emotions); | ||
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} catch (JSONException e) { | ||
resultText.setText("No emotion detected. Try again later."); | ||
} | ||
} | ||
} | ||
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} |
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@@ -1,18 +1,113 @@ | ||
<?xml version="1.0" encoding="utf-8"?> | ||
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<android.support.constraint.ConstraintLayout 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" | ||
tools:context=".MainActivity"> | ||
tools:context="tk.shivamgoyal.affekt.MainActivity" | ||
tools:layout_editor_absoluteX="0dp" | ||
tools:layout_editor_absoluteY="81dp"> | ||
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<TextView | ||
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<ImageView | ||
android:id="@+id/imageView" | ||
android:layout_width="0dp" | ||
android:layout_height="0dp" | ||
android:layout_marginStart="3dp" | ||
android:layout_marginTop="16dp" | ||
android:layout_marginEnd="2dp" | ||
android:layout_marginBottom="12dp" | ||
app:layout_constraintBottom_toTopOf="@+id/getEmotion" | ||
app:layout_constraintLeft_toLeftOf="@+id/getImage" | ||
app:layout_constraintRight_toRightOf="@+id/getEmotion" | ||
app:layout_constraintTop_toTopOf="parent" | ||
app:srcCompat="@mipmap/ic_launcher" | ||
tools:layout_constraintBottom_creator="1" | ||
tools:layout_constraintLeft_creator="1" | ||
tools:layout_constraintRight_creator="1" | ||
tools:layout_constraintTop_creator="1" /> | ||
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<Button | ||
android:id="@+id/getImage" | ||
android:layout_width="wrap_content" | ||
android:layout_height="wrap_content" | ||
android:text="Hello World!" | ||
app:layout_constraintBottom_toBottomOf="parent" | ||
android:layout_marginStart="60dp" | ||
android:layout_marginTop="12dp" | ||
android:onClick="getImage" | ||
android:text="Get Image" | ||
app:layout_constraintLeft_toLeftOf="parent" | ||
app:layout_constraintTop_toBottomOf="@+id/imageView" | ||
tools:layout_constraintLeft_creator="1" | ||
tools:layout_constraintTop_creator="1" /> | ||
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<Button | ||
android:id="@+id/getEmotion" | ||
android:layout_width="wrap_content" | ||
android:layout_height="wrap_content" | ||
android:layout_marginRight="60dp" | ||
android:layout_marginBottom="37dp" | ||
android:onClick="getEmotion" | ||
android:text="Get Emotion" | ||
app:layout_constraintBottom_toTopOf="@+id/resultText" | ||
app:layout_constraintRight_toRightOf="parent" | ||
app:layout_constraintTop_toTopOf="parent" /> | ||
tools:layout_constraintBottom_creator="1" | ||
tools:layout_constraintRight_creator="1" /> | ||
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<TextView | ||
android:id="@+id/resultText" | ||
android:layout_width="0dp" | ||
android:layout_height="136dp" | ||
android:layout_marginStart="18dp" | ||
android:layout_marginEnd="20dp" | ||
android:layout_marginBottom="24dp" | ||
android:ems="10" | ||
android:text="" | ||
android:textAlignment="viewStart" | ||
android:textAppearance="@style/TextAppearance.AppCompat.Widget.PopupMenu.Large" | ||
android:textSize="18sp" | ||
android:typeface="normal" | ||
app:layout_constraintBottom_toBottomOf="parent" | ||
app:layout_constraintLeft_toLeftOf="@+id/getImage" | ||
app:layout_constraintRight_toRightOf="parent" | ||
tools:layout_constraintBottom_creator="1" | ||
tools:layout_constraintLeft_creator="1" | ||
tools:layout_constraintRight_creator="1" /> | ||
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<TextView | ||
android:id="@+id/textView" | ||
android:layout_width="84dp" | ||
android:layout_height="26dp" | ||
android:layout_marginLeft="16dp" | ||
android:ems="10" | ||
android:text="Result:" | ||
android:textAlignment="viewStart" | ||
android:textAppearance="@style/TextAppearance.AppCompat.Widget.PopupMenu.Large" | ||
android:textSize="18sp" | ||
android:typeface="normal" | ||
app:layout_constraintBaseline_toBaselineOf="@+id/resultText" | ||
app:layout_constraintLeft_toLeftOf="parent" | ||
tools:layout_constraintBaseline_creator="1" | ||
tools:layout_constraintLeft_creator="1" /> | ||
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<TextView | ||
android:id="@+id/textView2" | ||
android:layout_width="wrap_content" | ||
android:layout_height="wrap_content" | ||
android:layout_marginStart="24dp" | ||
android:layout_marginEnd="24dp" | ||
android:layout_marginBottom="8dp" | ||
android:text="Hand Crafted with ♥ in India by Shivam Goyal" | ||
android:textAppearance="@style/TextAppearance.AppCompat.Widget.Button" | ||
app:layout_constraintBottom_toBottomOf="parent" | ||
app:layout_constraintEnd_toEndOf="parent" | ||
app:layout_constraintHorizontal_bias="0.5" | ||
app:layout_constraintStart_toStartOf="parent" | ||
app:layout_constraintTop_toBottomOf="@+id/resultText" /> | ||
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</android.support.constraint.ConstraintLayout> |
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