Timer für Fehlalare verbessert

app/src/main/java/com/example/greenwatch/KameraAktivitaet.java

@@ -4,7 +4,6 @@ import android.graphics.ImageFormat;
 import android.media.Image;
 import android.os.Bundle;
 import android.os.Handler;
-import android.util.Log;
 import android.util.Size;
 
 import android.widget.TextView;
@@ -27,24 +26,22 @@ public class KameraAktivitaet extends AppCompatActivity {
     // PREVIEW
     // private PreviewView previewView;
     private boolean isMotionDetected;
-    private boolean camera_alarm;
+    private boolean camera_alarm = false;
     private TextView alarm;
-    private TextView test;
-
 
     // Bildverarbeitung Variablen
     private ByteBuffer previousBuffer;
     private int previousWidth;
     private int previousHeight;
-    private int threshold = 50;
+    private final int threshold = 50;
     private int startX;
     private int startY;
     private int endX;
     private int endY;
 
     private static final long ALARM_RESET_DELAY = 5000;
-    private boolean isAlarmSet = false;
-    private Handler alarmResetHandler = new Handler();
+    private Runnable alarmResetRunnable;
+    private final Handler alarmResetHandler = new Handler();
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -53,9 +50,7 @@ public class KameraAktivitaet extends AppCompatActivity {
 
         // NUR FÜR TESTS
         alarm = findViewById(R.id.textView);
-        test = findViewById(R.id.textView2);
 
-        // PREVIEW //
         // previewView = findViewById(R.id.previewView);
 
         final ListenableFuture<ProcessCameraProvider> cameraProviderFuture = ProcessCameraProvider.getInstance(this);
@@ -99,9 +94,15 @@ public class KameraAktivitaet extends AppCompatActivity {
                         currentImage.close();
 
                         if (isMotionDetected) {
+
                             alarm.setText("ALARM");
                             camera_alarm = true;
 
+                            if(alarmResetRunnable != null) {
+                                alarmResetHandler.removeCallbacks(alarmResetRunnable);
+                            }
+
+                            alarmResetRunnable = this::resetAlarmStatus;
                             alarmResetHandler.postDelayed(alarmResetRunnable, ALARM_RESET_DELAY);
                         }
                     }
@@ -182,9 +183,7 @@ public class KameraAktivitaet extends AppCompatActivity {
             }
         }
 
-        float averageLuminance = (float) sumLuminance / countPixels;
-
-        return averageLuminance;
+        return (float) sumLuminance / countPixels;
     }
 
     private int kleinstesQuadrat(int height, int width) {
@@ -197,12 +196,10 @@ public class KameraAktivitaet extends AppCompatActivity {
         }
     }
 
-    private Runnable alarmResetRunnable = new Runnable() {
-        @Override
-        public void run() {
-            camera_alarm = false;
-            alarm.setText("OK");
-        }
-    };
+    private void resetAlarmStatus() {
+        camera_alarm = false;
+        alarm.setText("OK");
+        alarmResetRunnable = null;
+    }
 }