BT: add sleep to init

res/values/strings.xml

@@ -289,6 +289,10 @@
 <string name="p_bt_tnc_init">TNC init string</string>
 <string name="p_bt_tnc_init_summary">Initialization commands for TNC</string>
 
+<string name="p_bt_tnc_delay">TNC init delay</string>
+<string name="p_bt_tnc_delay_summary">Time to wait after each line</string>
+<string name="p_bt_tnc_delay_entry">TNC init delay [ms]</string>
+
 <string name="p_bt_prefs">Bluetooth settings</string>
 <string name="p_bt_prefs_summary">Enable Bluetooth, pair devices...</string>
 

res/xml/backend_bluetooth.xml

@@ -31,6 +31,14 @@
 		android:title="@string/p_bt_tnc_init"
 		android:summary="@string/p_bt_tnc_init_summary"
 		android:dialogTitle="@string/p_bt_tnc_init" />
+        <de.duenndns.EditTextPreferenceWithValue
+                android:key="bt.delay"
+		android:inputType="number"
+		android:hint="300"
+		android:defaultValue="300"
+		android:title="@string/p_bt_tnc_delay"
+		android:summary="@string/p_bt_tnc_delay_summary"
+		android:dialogTitle="@string/p_bt_tnc_delay_entry" />
 
 	<Preference
 		android:title="@string/p_bt_prefs"

src/backend/BluetoothTnc.scala

@@ -102,9 +102,16 @@ class BluetoothTnc(service : AprsService, prefs : PrefsWrapper) extends AprsIsUp
 				writer = new KissWriter(socket.getOutputStream())
 			}
 			val initstring = prefs.getString("bt.init", null)
+			val initdelay = prefs.getStringInt("bt.delay", 300)
 			if (initstring != null && initstring != "") {
 				log("Sending init: " + initstring)
-				socket.getOutputStream().write(initstring.getBytes())
+				val os = socket.getOutputStream()
+				for (line <- initstring.split("\n")) {
+					os.write(line.getBytes())
+					os.write('\r')
+					os.write('\n')
+					Thread.sleep(initdelay)
+				}
 			}
 			Log.d(TAG, "init_socket() done")
 		}