Add SeekBar value labels

app/src/main/java/de/hems/trafficsim/MainActivity.java

@@ -29,18 +29,26 @@ public class MainActivity extends AppCompatActivity implements Observer, SeekBar
         this.track = new Track(defaultNoOfVehicles, defaultTrackLength, defaultBrakeProb, defaultMaxVelocity);
         this.track.addObserver(this);
         this.viewStack = (LinearLayout) findViewById(R.id.trackViewStack);
+
         SeekBar trackLengthSeekBar = (SeekBar) findViewById(R.id.trackLengthSeekBar);
         trackLengthSeekBar.setOnSeekBarChangeListener(this);
         trackLengthSeekBar.setProgress(defaultTrackLength);
+        ((TextView)(findViewById(R.id.trackLengthTextView))).setText(String.valueOf(defaultTrackLength));
+
         SeekBar maxVelocitySeekBar = (SeekBar) findViewById(R.id.maxVelocitySeekBar);
         maxVelocitySeekBar.setOnSeekBarChangeListener(this);
         maxVelocitySeekBar.setProgress((int)defaultMaxVelocity);
+        ((TextView)(findViewById(R.id.maxVeloTextView))).setText(String.valueOf((int)defaultMaxVelocity));
+
         SeekBar noOfVehiclesSeekBar = (SeekBar) findViewById(R.id.noOfVehiclesSeekBar);
         noOfVehiclesSeekBar.setOnSeekBarChangeListener(this);
         noOfVehiclesSeekBar.setProgress(defaultNoOfVehicles);
+        ((TextView)(findViewById(R.id.noOfVehiclesTextView))).setText(String.valueOf(defaultNoOfVehicles));
+
         SeekBar brakeProbabilitySeekBar = (SeekBar) findViewById(R.id.brakeProbabilitySeekBar);
         brakeProbabilitySeekBar.setOnSeekBarChangeListener(this);
         brakeProbabilitySeekBar.setProgress((int)(defaultBrakeProb*20));
+        ((TextView)(findViewById(R.id.brakeProbTextView))).setText(String.valueOf(defaultBrakeProb));
     }
 
     @Override
@@ -103,10 +111,18 @@ public class MainActivity extends AppCompatActivity implements Observer, SeekBar
         if (newTrackLength < newNoOfVehicles) { // Dont allow values greater than track length!
             newNoOfVehicles = (int) newTrackLength;
             noOfVehiclesSeekBar.setProgress(newNoOfVehicles);
+
         }
+        TextView noOfVehiclesTextView = (TextView)(findViewById(R.id.noOfVehiclesTextView));
+        noOfVehiclesTextView.setText(String.valueOf(newNoOfVehicles));
+
+        TextView trackLengthTextView = (TextView)(findViewById(R.id.trackLengthTextView));
+        trackLengthTextView.setText(String.valueOf(newTrackLength));
+
         float newMaxVelocity = ((SeekBar) findViewById(R.id.maxVelocitySeekBar)).getProgress();
         SeekBar brakeProbabilitySeekBar = (SeekBar) findViewById(R.id.brakeProbabilitySeekBar);
         float newBrakeProb = (float)brakeProbabilitySeekBar.getProgress() / (float)brakeProbabilitySeekBar.getMax();
+
         this.track = new Track(newNoOfVehicles, newTrackLength, newBrakeProb, newMaxVelocity);
         this.track.addObserver(this);
         if (this.worker != null) { // There was a simulation running already
@@ -126,10 +142,13 @@ public class MainActivity extends AppCompatActivity implements Observer, SeekBar
             this.updateTrack();
         } else if (seekBar == (SeekBar)(findViewById(R.id.brakeProbabilitySeekBar))) {
             float newBrakeProb = (float)seekBar.getProgress() / (float)seekBar.getMax();
-            System.out.println(newBrakeProb);
             this.track.setBrakeProb(newBrakeProb);
+            TextView newBrakeProbTextView = (TextView)(findViewById(R.id.brakeProbTextView));
+            newBrakeProbTextView.setText(String.valueOf((newBrakeProb)));
         } else if (seekBar == (SeekBar)(findViewById(R.id.maxVelocitySeekBar))) {
             this.track.setMaxVelocity(seekBar.getProgress());
+            TextView tv = (TextView)(findViewById(R.id.maxVeloTextView));
+            tv.setText(String.valueOf(progress));
         } else if (seekBar == (SeekBar)(findViewById(R.id.trackLengthSeekBar))) {
             this.updateTrack();
         }

app/src/main/res/layout/activity_main.xml

@@ -32,11 +32,25 @@
             android:paddingTop="8dp"
             android:paddingBottom="8dp">
 
-            <TextView
-                android:id="@+id/textView4"
+            <androidx.constraintlayout.widget.ConstraintLayout
                 android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:text="Track length" />
+                android:layout_height="match_parent">
+
+                <TextView
+                    android:id="@+id/textView4"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="Track length"
+                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintTop_toTopOf="parent" />
+
+                <TextView
+                    android:id="@+id/trackLengthTextView"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    app:layout_constraintEnd_toEndOf="parent"
+                    app:layout_constraintTop_toTopOf="parent" />
+            </androidx.constraintlayout.widget.ConstraintLayout>
 
             <SeekBar
                 android:id="@+id/trackLengthSeekBar"
@@ -47,11 +61,25 @@
                 android:min="1"
                 android:progress="50" />
 
-            <TextView
-                android:id="@+id/textView3"
+            <androidx.constraintlayout.widget.ConstraintLayout
                 android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:text="Number of vehicles" />
+                android:layout_height="match_parent">
+
+                <TextView
+                    android:id="@+id/textView3"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="Number of vehicles"
+                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintTop_toTopOf="parent" />
+
+                <TextView
+                    android:id="@+id/noOfVehiclesTextView"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    app:layout_constraintEnd_toEndOf="parent"
+                    app:layout_constraintTop_toTopOf="parent" />
+            </androidx.constraintlayout.widget.ConstraintLayout>
 
             <SeekBar
                 android:id="@+id/noOfVehiclesSeekBar"
@@ -62,11 +90,24 @@
                 android:min="1"
                 android:progress="3" />
 
-            <TextView
-                android:id="@+id/textView5"
+            <androidx.constraintlayout.widget.ConstraintLayout
                 android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:text="Maximum velocity" />
+                android:layout_height="match_parent">
+
+                <TextView
+                    android:id="@+id/textView5"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="Maximum velocity"
+                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintTop_toTopOf="parent" />
+
+                <TextView
+                    android:id="@+id/maxVeloTextView"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    app:layout_constraintEnd_toEndOf="@+id/textView5" />
+            </androidx.constraintlayout.widget.ConstraintLayout>
 
             <SeekBar
                 android:id="@+id/maxVelocitySeekBar"
@@ -76,11 +117,24 @@
                 android:max="10"
                 android:progress="3" />
 
-            <TextView
-                android:id="@+id/textView6"
+            <androidx.constraintlayout.widget.ConstraintLayout
                 android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:text="Brake probability" />
+                android:layout_height="match_parent">
+
+                <TextView
+                    android:id="@+id/brakeProbLabel"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="Brake probability"
+                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintTop_toTopOf="parent" />
+
+                <TextView
+                    android:id="@+id/brakeProbTextView"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    app:layout_constraintEnd_toEndOf="@+id/brakeProbLabel" />
+            </androidx.constraintlayout.widget.ConstraintLayout>
 
             <SeekBar
                 android:id="@+id/brakeProbabilitySeekBar"