Fixed connection issues with bluetooth.

Android/res/values/preferences_keys.xml

@@ -19,6 +19,7 @@ This file is used to store the preferences keys so that it's accessible and modi
     <string name="pref_server_ip_key" translatable="false">pref_server_ip</string>
     <string name="pref_server_port_key" translatable="false">pref_server_port</string>
     <string name="pref_udp_server_port_key" translatable="false">pref_udp_server_port</string>
+    <string name="pref_bluetooth_device_name_key" translatable="false">pref_bluetooth_device_name</string>
     <string name="pref_bluetooth_device_address_key" translatable="false">pref_bluetooth_device_address</string>
     <string name="pref_vehicle_type_key" translatable="false">pref_vehicle_type</string>
     <string name="pref_rc_quickmode_right_key" translatable="false">pref_rc_quickmode_right</string>

Android/res/values/strings.xml

@@ -422,6 +422,7 @@
     <!-- BLuetooth -->
     <string name="pref_bluetooth">BLUETOOTH CONNECTION</string>
     <string name="pref_bluetooth_device_address">Bluetooth device</string>
+    <string name="pref_forget_bluetooth_device_title">Forget %s device</string>
     <string name="pref_forget_bluetooth_device_address">Forget default device</string>
     <string name="pref_forget_bluetooth_device_address_confirm">Are you sure?</string>
     <string name="pref_bluetooth_forget">Forget</string>
@@ -529,5 +530,6 @@
     <string name="label_select_all">select all</string>
     <string name="guided_scan_roi_set_message">Targeting selected location.</string>
     <string name="mode_follow_guided_scan">Vehicle follows the user while remaining locked on a point of interest. Long click on the map to select the point of interest.</string>
+    <string name="pref_no_saved_bluetooth_device_title">No saved bluetooth device.</string>
 
 </resources>

Android/src/org/droidplanner/android/activities/helpers/BluetoothDevicesActivity.java

@@ -135,8 +135,8 @@ public void onItemClick(AdapterView<?> parent, View view, int position,	long id)
 			// so the bluetooth client can retrieve it on connection.
             final Context context = getApplicationContext();
 			DroidPlannerPrefs mAppPrefs = new DroidPlannerPrefs(context);
-			mAppPrefs.setBluetoothDeviceAddress(device.getAddress() + ";" + device.getName());
-
+            mAppPrefs.setBluetoothDeviceName(device.getName());
+            mAppPrefs.setBluetoothDeviceAddress(device.getAddress());
 
 			// Toggle the drone connection
             DroidPlannerApp.connectToDrone(context);

Android/src/org/droidplanner/android/dialogs/ClearBTDialogPreference.java

@@ -8,8 +8,14 @@
 
 public class ClearBTDialogPreference extends DialogPreference {
 
+    public interface OnResultListener {
+        void onResult(boolean result);
+    }
+
 	private DroidPlannerPrefs mAppPrefs;
 
+    private OnResultListener listener;
+
 	public ClearBTDialogPreference(Context context, AttributeSet attrs) {
 		super(context, attrs);
 		mAppPrefs = new DroidPlannerPrefs(context.getApplicationContext());
@@ -21,6 +27,13 @@ protected void onDialogClosed(boolean positiveResult) {
 		if (positiveResult) {
 			mAppPrefs.setBluetoothDeviceAddress("");
 		}
+
+        if(listener != null)
+            listener.onResult(positiveResult);
 	}
 
+    public void setOnResultListener(OnResultListener listener){
+        this.listener = listener;
+    }
+
 }

Android/src/org/droidplanner/android/fragments/SettingsFragment.java

@@ -19,6 +19,7 @@
 import android.preference.PreferenceCategory;
 import android.preference.PreferenceFragment;
 import android.support.v4.content.LocalBroadcastManager;
+import android.text.TextUtils;
 import android.util.Log;
 import android.widget.Toast;
 
@@ -35,6 +36,7 @@
 import org.droidplanner.android.DroidPlannerApp;
 import org.droidplanner.android.R;
 import org.droidplanner.android.activities.helpers.MapPreferencesActivity;
+import org.droidplanner.android.dialogs.ClearBTDialogPreference;
 import org.droidplanner.android.maps.providers.DPMapProvider;
 import org.droidplanner.android.utils.Utils;
 import org.droidplanner.android.utils.analytics.GAUtils;
@@ -229,6 +231,7 @@ public boolean onPreferenceChange(Preference preference, Object newValue) {
         setupConnectionPreferences();
         setupAdvancedMenuToggle();
         setupUnitSystemPreferences();
+        setupBluetoothDevicePreferences();
     }
 
     private void setupAdvancedMenuToggle(){
@@ -298,6 +301,41 @@ public boolean onPreferenceChange(Preference preference, Object newValue) {
         }
     }
 
+    private void setupBluetoothDevicePreferences(){
+        final ClearBTDialogPreference preference = (ClearBTDialogPreference) findPreference(getString(R.string
+                .pref_bluetooth_device_address_key));
+        if(preference != null){
+            updateBluetoothDevicePreference(preference, dpPrefs.getBluetoothDeviceAddress());
+            preference.setOnResultListener(new ClearBTDialogPreference.OnResultListener() {
+                @Override
+                public void onResult(boolean result) {
+                    if(result){
+                        updateBluetoothDevicePreference(preference, dpPrefs.getBluetoothDeviceAddress());
+                    }
+                }
+            });
+        }
+    }
+
+    private void updateBluetoothDevicePreference(Preference preference, String deviceAddress){
+        if(TextUtils.isEmpty(deviceAddress)) {
+            preference.setEnabled(false);
+            preference.setTitle(R.string.pref_no_saved_bluetooth_device_title);
+            preference.setSummary("");
+        }
+        else{
+            preference.setEnabled(true);
+            preference.setSummary(deviceAddress);
+
+            final String deviceName = dpPrefs.getBluetoothDeviceName();
+            if(deviceName != null){
+                preference.setTitle(getString(R.string.pref_forget_bluetooth_device_title, deviceName));
+            }
+            else
+                preference.setTitle(getString(R.string.pref_forget_bluetooth_device_address));
+        }
+    }
+
     private void updateConnectionPreferenceSummary(Preference preference, int connectionType) {
         String connectionName;
         switch (connectionType) {
@@ -333,7 +371,6 @@ private void initSummaryPerPrefs() {
         mDefaultSummaryPrefs.add(getString(R.string.pref_server_port_key));
         mDefaultSummaryPrefs.add(getString(R.string.pref_server_ip_key));
         mDefaultSummaryPrefs.add(getString(R.string.pref_udp_server_port_key));
-        mDefaultSummaryPrefs.add(getString(R.string.pref_bluetooth_device_address_key));
         mDefaultSummaryPrefs.add(getString(R.string.pref_rc_quickmode_left_key));
         mDefaultSummaryPrefs.add(getString(R.string.pref_rc_quickmode_right_key));
     }

Android/src/org/droidplanner/android/utils/prefs/DroidPlannerPrefs.java

@@ -196,6 +196,14 @@ public int getUdpServerPort(){
                         .pref_udp_server_port_key), DEFAULT_UDP_SERVER_PORT));
     }
 
+    public String getBluetoothDeviceName(){
+        return prefs.getString(context.getString(R.string.pref_bluetooth_device_name_key), null);
+    }
+
+    public void setBluetoothDeviceName(String deviceName){
+        prefs.edit().putString(context.getString(R.string.pref_bluetooth_device_name_key), deviceName).apply();
+    }
+
     public String getBluetoothDeviceAddress() {
         return prefs.getString(context.getString(R.string.pref_bluetooth_device_address_key), null);
     }