update ai module

Author: REBOOTERS

Diff for: subs/ai/src/main/AndroidManifest.xml

@@ -4,7 +4,7 @@
     <application>
         <activity
             android:name=".DigitalClassificationActivity"
-            android:exported="false" />
+            android:exported="true" />
     </application>
 
 </manifest>

Diff for: subs/ai/src/main/java/com/engineer/ai/DigitalClassificationActivity.kt

@@ -14,6 +14,7 @@ import org.tensorflow.lite.TensorFlowLite
 class DigitalClassificationActivity : AppCompatActivity() {
     private var drawView: DrawView? = null
     private var clearButton: Button? = null
+    private var initButton: Button? = null
     private var predictedTextView: TextView? = null
     private var digitClassifier = DigitClassifier(this)
 
@@ -28,6 +29,7 @@ class DigitalClassificationActivity : AppCompatActivity() {
         drawView?.setColor(Color.WHITE)
         drawView?.setBackgroundColor(Color.BLACK)
         clearButton = findViewById(R.id.clear_button)
+        initButton = findViewById(R.id.init_model)
         predictedTextView = findViewById(R.id.predicted_text)
 
         // Setup clear drawing button.
@@ -52,8 +54,11 @@ class DigitalClassificationActivity : AppCompatActivity() {
         Log.d(TAG,"ver ${TensorFlowLite.schemaVersion()}")
         Log.d(TAG,"ver ${TensorFlowLite.runtimeVersion()}")
         // Setup digit classifier.
-        digitClassifier.initialize()
-            .addOnFailureListener { e -> Log.e(TAG, "Error to setting up digit classifier.", e) }
+        initButton?.setOnClickListener {
+            digitClassifier.initialize()
+                .addOnFailureListener { e -> Log.e(TAG, "Error to setting up digit classifier.", e) }
+        }
+
     }
 
     override fun onDestroy() {
@@ -78,6 +83,6 @@ class DigitalClassificationActivity : AppCompatActivity() {
     }
 
     companion object {
-        private const val TAG = "MainActivity"
+        private const val TAG = "DigitalClassification"
     }
 }

Diff for: subs/ai/src/main/res/layout/activity_digital_classification.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.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"
@@ -12,19 +11,19 @@
         android:layout_width="match_parent"
         android:layout_height="0dp"
         app:layout_constraintDimensionRatio="1:1"
-        app:layout_constraintTop_toTopOf="parent"/>
+        app:layout_constraintTop_toTopOf="parent" />
 
     <TextView
         android:id="@+id/predicted_text"
-        android:textStyle="bold"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="@string/prediction_text_placeholder"
         android:textSize="20sp"
+        android:textStyle="bold"
         app:layout_constraintBottom_toTopOf="@id/clear_button"
         app:layout_constraintLeft_toLeftOf="parent"
         app:layout_constraintRight_toRightOf="parent"
-        app:layout_constraintTop_toBottomOf="@id/draw_view"/>
+        app:layout_constraintTop_toBottomOf="@id/draw_view" />
 
     <Button
         android:id="@+id/clear_button"
@@ -33,6 +32,15 @@
         android:text="@string/clear_button_text"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintLeft_toLeftOf="parent"
-        app:layout_constraintRight_toRightOf="parent"/>
+        app:layout_constraintRight_toRightOf="parent" />
+
+    <Button
+        android:id="@+id/init_model"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="init_model"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintStart_toEndOf="@id/clear_button" />
 
 </androidx.constraintlayout.widget.ConstraintLayout>