Add yes/no prompt before clearing active track.

app/src/main/java/org/y20k/trackbook/Keys.kt

@@ -73,6 +73,7 @@ object Keys {
     const val DIALOG_EMPTY_RECORDING: Int = 0
     const val DIALOG_DELETE_TRACK: Int = 1
     const val DIALOG_DELETE_NON_STARRED: Int = 2
+    const val DIALOG_CLEAR_RECORDING: Int = 3
 
     // dialog results
     const val DIALOG_EMPTY_PAYLOAD_STRING: String = ""

app/src/main/java/org/y20k/trackbook/MapFragment.kt

@@ -90,7 +90,15 @@ class MapFragment : Fragment(), YesNoDialog.YesNoDialogListener, MapOverlayHelpe
             saveTrack()
         }
         layout.clearButton.setOnClickListener {
-            trackerService.clearTrack()
+            if (track.wayPoints.isNotEmpty()) {
+                YesNoDialog(this as YesNoDialog.YesNoDialogListener).show(
+                    context=activity as Context,
+                    type = Keys.DIALOG_CLEAR_RECORDING,
+                    title = R.string.dialog_clear_recording_title,
+                    message = R.string.dialog_clear_recording_message,
+                    yesButton = R.string.dialog_clear_recording_action_resume
+                )
+            }
         }
         layout.resumeButton.setOnClickListener {
             resumeTracking()
@@ -192,6 +200,13 @@ class MapFragment : Fragment(), YesNoDialog.YesNoDialogListener, MapOverlayHelpe
                     }
                 }
             }
+            Keys.DIALOG_CLEAR_RECORDING -> {
+                when (dialogResult) {
+                    true -> {
+                        trackerService.clearTrack()
+                    }
+                }
+            }
         }
     }
 

app/src/main/res/values/strings.xml

@@ -24,6 +24,9 @@
     <string name="fab_sub_menu_save">Save</string>
     <string name="fab_sub_menu_resume">Resume</string>
     <!-- Dialogs -->
+    <string name="dialog_clear_recording_title">Clear recorded points?</string>
+    <string name="dialog_clear_recording_message">Clear all points and start a new track.</string>
+    <string name="dialog_clear_recording_action_resume">Clear</string>
     <string name="dialog_generic_button_cancel">Cancel</string>
     <string name="dialog_generic_button_okay">OK</string>
     <string name="dialog_generic_details_button">Show details</string>