Fix picker loading

LeCountdown/Views/Reusable/TimePickerView.swift

@@ -117,7 +117,21 @@ struct TimePickerView: View {
         MultiComponentPicker(columns: columns, selections: [hoursBinding, minutesBinding, secondsBinding])
             .frame(height: 200)
             .previewLayout(.sizeThatFits)
+            .onAppear {
+                self._defineDuration()
+            }
     }
+    
+    fileprivate func _defineDuration() {
+        let h = Int(duration / 3600.0)
+        let m = Int(duration - Double(h * 3600)) / 60
+        let s = Int(duration - Double(h * 3600) - Double(m * 60))
+        
+        self.hours = h
+        self.minutes = m
+        self.seconds = s
+    }
+    
 }
 
 struct MultiComponentPicker_Previews: PreviewProvider {