Pebble 2/LE: on connect wait 30s max and stop waiting immediately if a real PP connection got establish (ie write request on the gatt server)

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/pebble/ble/PebbleGATTServer.java

@@ -104,6 +104,9 @@ class PebbleGATTServer extends BluetoothGattServerCallback {
             return;
         }
         mPebbleLESupport.mIsConnected = true;
+        synchronized (mPebbleLESupport) {
+            mPebbleLESupport.notify();
+        }
         LOG.info("write request: offset = " + offset + " value = " + GB.hexdump(value, 0, -1));
         int header = value[0] & 0xff;
         int command = header & 7;

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/pebble/ble/PebbleLESupport.java

@@ -36,9 +36,11 @@ public class PebbleLESupport {
         if (mPebbleGATTServer.initialize()) {
             mPebbleGATTClient = new PebbleGATTClient(this, context, mBtDevice);
             try {
-                Thread.sleep(6000);
-                if (mIsConnected) {
-                    return;
+                synchronized (this) {
+                    wait(30000);
+                    if (mIsConnected) {
+                        return;
+                    }
                 }
             } catch (InterruptedException ignored) {
             }