CODEWITHSUNDEEP
androidbluetoothbluetooth-lowenergy
g4genuis
g4genuis

Reputation: 45

Prevent disconnection of Bluetooth LE Service

I am making an app using Bluetooth LE Service. What I noticed is the device gets disconnected automatically after some time after app goes to background. Can someone explain reason for this?

I am getting following error.

02-12 16:48:27.497 11695-11695/main.nesttech.com.nesttechble E/ActivityThread﹕ Activity main.nesttech.com.nesttechble.MainActivity has leaked ServiceConnection main.nesttech.com.nesttechble.MainActivity$1@428fc528 that was originally bound here android.app.ServiceConnectionLeaked: Activity main.nesttech.com.nesttechble.MainActivity has leaked ServiceConnection main.nesttech.com.nesttechble.MainActivity$1@428fc528 that was originally bound here at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:979) at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:873) at android.app.ContextImpl.bindServiceAsUser(ContextImpl.java:1818) at android.app.ContextImpl.bindService(ContextImpl.java:1806) at android.content.ContextWrapper.bindService(ContextWrapper.java:503) at main.nesttech.com.nesttechble.MainActivity.connectDevice(MainActivity.java:429) at main.nesttech.com.nesttechble.MainActivity.access$200(MainActivity.java:93) at main.nesttech.com.nesttechble.MainActivity$4$1.run(MainActivity.java:399) at android.os.Handler.handleCallback(Handler.java:730) at android.os.Handler.dispatchMessage(Handler.java:92) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:5414) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:525) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1187) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003) at dalvik.system.NativeStart.main(Native Method)

Upvotes: 0

Views: 311

Answers (1)

reTs
reTs

Reputation: 1829

The log you posted are just losing the ServiceConnection, which is used to connect your Activity to your Service object by bindService. Beware it's Android Service object but not BLE service implemented in the peripheral.

This has nothing to do with BLE connection, probably your background Activity just get killed by the system to free memory, and you did not do unbindService in suitable lifecycle callback before the activity dies.

Upvotes: 1

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