Android Question Problem whit Android 10

[Fausto62]

Hello , I have developed an App that connect eps32 with android phone.
The App work well with Android 10 on Cinese phone, but not work on phone whit android 10 for european market.
The Phone not Connect to ESP32
Any suggestion.
Thanks in avance

 

[Erel]

We cannot say anything based on the information you provided.

 

[Fausto62]

Hello Erel,

I'm testing the attached code. The example work in android 8.0.0, but whit huawei P30 Lite whit Android 10 not work. The phone see the Bluetooth device, but the example app not connect whit the device.

Thanks for your help.

Fausto

 

[DonManfred]

Your manifest is outdated.
It should have set targetsdk to 28.
You are not using RuntimePermissions, you are not requesting the needed Permisssions.

android.jar / targetSdkVersion / minSdkVersion

 

[Fausto62]

Hello DonManfred ,

Thanks for yur help.

I have changed the manifest from

<uses-sdk android:minSdkVersion="5" android:targetSdkVersion="26"/>

to

<uses-sdk android:minSdkVersion="5" android:targetSdkVersion="28"/>

But not work.

How add RuntimePermissions and how request the needed Permission?

Thanks a lot for your help

 

[DonManfred]

How add RuntimePermissions and how request the needed Permission?

Checking the Tutorial i linked would help. Thank you for ignoring it

 

[Erel]

You can also see it in the Bluetooth examples:
[B4XPages] Bluetooth Chat Example

Android Bluetooth / BluetoothAdmin Tutorial

Better implementation based on B4XPages: https://www.b4x.com/android/forum/threads/b4xpages-bluetooth-chat-example.119014/#content Tutorial was rewritten in April 2018. We will create a chat example between two Android devices. All the non-UI code is implemented in a class named...

www.b4x.com

 

[Fausto62]

Hello Erel,

thanks, I try it.

regards

 

[Fausto62]

Hello ,
I have tested the bluetooth chat example and work.
I have changed the Astrem initialization with
'AStream.InitializePrefix(serial.InputStream, False, serial.OutputStream, "astream")
AStream.Initialize(serial.InputStream, serial.OutputStream, "astream").
If I use the bluetooth chat whit samsung A3 i can connect to ESP32 whit bluetooth serial standard.
But if I use the same bluetooth chat , on P30Lite this see the ESP32 but not connect, alwais timeout error.
If I use the App "Serial Bluetooth Terminal" from google play the same phone connect to esp32 and work properly.
What setting I need in the chat sample to connect whit esp32 in serial standard?

Any help is very apreciated

Thanks in avance

 

[Erel]

Please use [code]code here...[/code] tags when posting code.

ESP32 Bluetooth + Android example: https://www.b4x.com/android/forum/threads/resp32bluetooth-esp32-classic-bluetooth.93257/#content

The chat example will only work when both devices run it.