Android Question BLE Central example does not run

grafsoft · Jan 9, 2022

Hi,

no success with my Xiaomi Band 6, working well with the app MiFit.

The log, I do not know what else I can send to facilitate the analysis:

B4X:

Logger verbunden mit:  samsung SM-A725F
--------- beginning of crash
--------- beginning of main
--------- beginning of system
*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
StateChanged: 12
** Activity (main) Pause, UserClosed = true **
** Service (starter) Destroy (ignored)**
** Activity (main) Create, isFirst = false **
** Activity (main) Resume **
StateChanged: 12
** Activity (main) Pause, UserClosed = true **
Logger verbunden mit:  samsung SM-A725F
--------- beginning of crash
--------- beginning of main
--------- beginning of system
*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
StateChanged: 12
** Activity (main) Pause, UserClosed = true **
** Service (starter) Destroy (ignored)**
** Activity (main) Create, isFirst = false **
** Activity (main) Resume **
StateChanged: 12
** Activity (main) Pause, UserClosed = true **
Copying updated assets files (1)
*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
** Activity (main) Pause, UserClosed = false **
sending message to waiting queue (activity_permissionresult)
running waiting messages (1)
** Activity (main) Resume **

(Erel sorry for my last post. I could explain, but thread closed ...)

f0raster0 · Jan 15, 2022

grafsoft said:
Runs without MyFit! You are my hero! Do you by any chance know by heart how to get the heart rate? But do not waste your time, there are numerous examples

super.. start a new question and post the log..
there we can make working the heart rate

Erel · Jan 10, 2022

The latest BLE example is this one: https://www.b4x.com/android/forum/threads/b4x-ble-2-bluetooth-low-energy.59937/#content

Try it.

grafsoft · Jan 11, 2022

I did.

B4X:

Logger verbunden mit:  samsung SM-A725F
--------- beginning of crash
--------- beginning of main
--------- beginning of system
Copying updated assets files (9)
*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
Call B4XPages.GetManager.LogEvents = True to enable logging B4XPages events.
** Activity (main) Resume **
** Activity (main) Pause event (activity is not paused). **
** Service (starter) Destroy (ignored)**
*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
Call B4XPages.GetManager.LogEvents = True to enable logging B4XPages events.
** Activity (main) Resume **
** Activity (main) Pause event (activity is not paused). **
** Service (starter) Destroy (ignored)**

The program stops at this line in Sub btnScan_Click

B4X:

Wait For B4XPage_PermissionResult (Permission As String, Result As Boolean)

In release mode it crashes as soon as I touch the button "Scan & connect",

Erel · Jan 11, 2022

grafsoft said:
In release mode it crashes as soon as I touch the button "Scan & connect",

There must be an error message in the logs when the process crashes. Please post it.

grafsoft · Jan 11, 2022

Thank you for your help, here it is:

B4X:

Logger verbunden mit:  samsung SM-A725F
--------- beginning of crash
--------- beginning of main
--------- beginning of system
*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
Call B4XPages.GetManager.LogEvents = True to enable logging B4XPages events.
** Activity (main) Resume **
java.lang.Exception: Sub activity_permissionresult was not found.
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:219)
    at anywheresoftware.b4a.BA$2.run(BA.java:387)
    at android.os.Handler.handleCallback(Handler.java:938)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:246)
    at android.app.ActivityThread.main(ActivityThread.java:8633)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)
*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
Call B4XPages.GetManager.LogEvents = True to enable logging B4XPages events.
** Activity (main) Resume **
java.lang.Exception: Sub activity_permissionresult was not found.
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:219)
    at anywheresoftware.b4a.BA$2.run(BA.java:387)
    at android.os.Handler.handleCallback(Handler.java:938)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:246)
    at android.app.ActivityThread.main(ActivityThread.java:8633)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)

Erel · Jan 12, 2022

Good. This means that you have an old copy of RuntimePermissions library in the internal libraries folder. Delete all the internal libraries and reinstall B4A.

grafsoft · Jan 12, 2022

Thank you, much better, no crash.But after a few seconds (with red dots running in circles) I get "not connected". Device works. What can I do?

Erel · Jan 13, 2022

I guess that the BLE peripheral expects something that you are not sending. You will need to check its documentation.

f0raster0 · Jan 13, 2022

Usually BLE app needs fine location be ON

Remove the app
Turn fine location ON
Install the app (shoould ask for permissions)
Try to scan&connect

f0raster0 · Jan 13, 2022

Hi again..
i just tested the ble example

grafsoft said:
.. after a few seconds...I get "not connected"...

grafsoft said:
What can I do?

make sure location is ON

grafsoft · Jan 14, 2022

Hi,

I think you mean Google location precision (sorry, my Android 12 speaks German). It is always ON.

De-installed, re-installed, still no success.

Thanks
Peter

f0raster0 · Jan 14, 2022

grafsoft said:
Hi,

I think you mean Google location precision (sorry, my Android 12 speaks German). It is always ON.

De-installed, re-installed, still no success.

Thanks
Peter

Are you trying the ble example as is, rigth?

My Android is 11, then don't know if android 12 is the issue.

Can you please post the new logs when you are trying: scan&connect

Edit: make sure the app MiFit is not running..

grafsoft · Jan 14, 2022

Runs without MyFit! You are my hero! Do you by any chance know by heart how to get the heart rate? But do not waste your time, there are numerous examples

f0raster0 · Jan 15, 2022

grafsoft said:
Runs without MyFit! You are my hero! Do you by any chance know by heart how to get the heart rate? But do not waste your time, there are numerous examples

super.. start a new question and post the log..
there we can make working the heart rate

grafsoft · Jan 15, 2022

Sorry, not completely solved: Sometimes connecting works, sometimes (most of the time) not:

B4X:

Logger verbunden mit:  samsung SM-A725F
--------- beginning of main
--------- beginning of system
*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
Call B4XPages.GetManager.LogEvents = True to enable logging B4XPages events.
** Activity (main) Resume **
Found: , 4A:FF:6E:16:CB:76, RSSI = -83, (MyMap) {1=[B@a14f380, 10=[B@21cddb9, -1=[B@7eef5fe, 0=[B@26515f}
connecting
Found: , 00:77:89:30:72:D6, RSSI = -83, (MyMap) {-1=[B@b95c7ac, 0=[B@ca49c75}
connecting
Found: , 51:42:E5:0A:8C:DD, RSSI = -94, (MyMap) {1=[B@140740a, 10=[B@588a47b, -1=[B@f6db298, 0=[B@7af8af1}
connecting
Discovering services.
Disconnected
Connected
Disconnected
Found: , 4A:FF:6E:16:CB:76, RSSI = -84, (MyMap) {1=[B@be5f3ba, 10=[B@d07a26b, -1=[B@97ef1c8, 0=[B@1681261}
connecting
Found: , 00:77:89:30:72:D6, RSSI = -82, (MyMap) {-1=[B@6ef9186, 0=[B@5fbfa47}
connecting
Discovering services.
Connected
Disconnected
Found: , 00:77:89:30:72:D6, RSSI = -80, (MyMap) {-1=[B@682bf6a, 0=[B@1f9fc5b}
connecting
Found: Mi Smart Band 6, E0:84:27:16:FA:1B, RSSI = -54, (MyMap) {1=[B@bb65cf8, -1=[B@cc955d1, 9=[B@a856836, 2=[B@520337, 0=[B@37050a4}
connecting
Disconnected
Disconnected
Found: , DC:D9:1E:AD:26:77, RSSI = -100, (MyMap) {-1=[B@5eeb24b, 0=[B@1f6f428}
connecting
Found: , 00:77:89:30:72:D6, RSSI = -78, (MyMap) {-1=[B@37a5541, 0=[B@2564ae6}
connecting
Disconnected
Disconnected
Found: , 77:72:50:71:6B:6A, RSSI = -92, (MyMap) {3=[B@8064635, 22=[B@60e3aca, -1=[B@c34c43b, 0=[B@6e3b758}
connecting
Found: , 00:77:89:30:72:D6, RSSI = -81, (MyMap) {-1=[B@6e210b1, 0=[B@93d3996}
connecting
Disconnected
Disconnected
Found: , BC:7E:8B:C3:53:0B, RSSI = -100, (MyMap) {-1=[B@212ea7a, 0=[B@9db322b}
connecting
Found: , 77:72:50:71:6B:6A, RSSI = -92, (MyMap) {3=[B@3dfa688, 22=[B@278821, -1=[B@6d53446, 0=[B@2d8c607}
connecting
Found: , 00:77:89:30:72:D6, RSSI = -77, (MyMap) {-1=[B@30ca334, 0=[B@453855d}
connecting
Disconnected
Disconnected
Disconnected
** Activity (main) Pause event (activity is not paused). **
** Service (starter) Destroy (ignored)**

f0raster0 · Jan 15, 2022

grafsoft said:

Sorry, not completely solved: Sometimes connecting works, sometimes (most of the time) not:

B4X:

Logger verbunden mit:  samsung SM-A725F
--------- beginning of main
--------- beginning of system
*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
Call B4XPages.GetManager.LogEvents = True to enable logging B4XPages events.
** Activity (main) Resume **
Found: , 4A:FF:6E:16:CB:76, RSSI = -83, (MyMap) {1=[B@a14f380, 10=[B@21cddb9, -1=[B@7eef5fe, 0=[B@26515f}
connecting
Found: , 00:77:89:30:72:D6, RSSI = -83, (MyMap) {-1=[B@b95c7ac, 0=[B@ca49c75}
connecting
Found: , 51:42:E5:0A:8C:DD, RSSI = -94, (MyMap) {1=[B@140740a, 10=[B@588a47b, -1=[B@f6db298, 0=[B@7af8af1}
connecting
Discovering services.
Disconnected
Connected
Disconnected
Found: , 4A:FF:6E:16:CB:76, RSSI = -84, (MyMap) {1=[B@be5f3ba, 10=[B@d07a26b, -1=[B@97ef1c8, 0=[B@1681261}
connecting
Found: , 00:77:89:30:72:D6, RSSI = -82, (MyMap) {-1=[B@6ef9186, 0=[B@5fbfa47}
connecting
Discovering services.
Connected
Disconnected
Found: , 00:77:89:30:72:D6, RSSI = -80, (MyMap) {-1=[B@682bf6a, 0=[B@1f9fc5b}
connecting
Found: Mi Smart Band 6, E0:84:27:16:FA:1B, RSSI = -54, (MyMap) {1=[B@bb65cf8, -1=[B@cc955d1, 9=[B@a856836, 2=[B@520337, 0=[B@37050a4}
connecting
Disconnected
Disconnected
Found: , DC:D9:1E:AD:26:77, RSSI = -100, (MyMap) {-1=[B@5eeb24b, 0=[B@1f6f428}
connecting
Found: , 00:77:89:30:72:D6, RSSI = -78, (MyMap) {-1=[B@37a5541, 0=[B@2564ae6}
connecting
Disconnected
Disconnected
Found: , 77:72:50:71:6B:6A, RSSI = -92, (MyMap) {3=[B@8064635, 22=[B@60e3aca, -1=[B@c34c43b, 0=[B@6e3b758}
connecting
Found: , 00:77:89:30:72:D6, RSSI = -81, (MyMap) {-1=[B@6e210b1, 0=[B@93d3996}
connecting
Disconnected
Disconnected
Found: , BC:7E:8B:C3:53:0B, RSSI = -100, (MyMap) {-1=[B@212ea7a, 0=[B@9db322b}
connecting
Found: , 77:72:50:71:6B:6A, RSSI = -92, (MyMap) {3=[B@3dfa688, 22=[B@278821, -1=[B@6d53446, 0=[B@2d8c607}
connecting
Found: , 00:77:89:30:72:D6, RSSI = -77, (MyMap) {-1=[B@30ca334, 0=[B@453855d}
connecting
Disconnected
Disconnected
Disconnected
** Activity (main) Pause event (activity is not paused). **
** Service (starter) Destroy (ignored)**

add a filter to connect to your module.

grafsoft · Jan 16, 2022

I have searched for scan filters but I do not understand them. Can you point me to an example?

Android Question BLE Central example does not run

grafsoft

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f0raster0

Erel

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grafsoft

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Erel

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Erel

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