Show runtime error when BLE click scan

[ChrisWard]

We can't see what else you may have or how the logic of your process flows, which makes a difference to the advice given. However, we have established that you may need to request 3 Bluetooth permissions - are you using the BLE extension? See my post #12.

Here is a way to request multiple permissions:
RequestMultiplePermissions.aia (188.3 KB)

[Anke]

Try this one:

Android10BLETest_copy2.apk

[ChrisWard]

@ma720207

I try it,but it still fail.

See also my post #22

[Anke]

@Taifun

I'm using the latest version 2.65 and confirm this issue for the companion app

Try this one:
Android10BLETest_copy2.aia (187.1 KB)

I've no issues with Companion! EDIT: Tested on Android 12.

[ChrisWard]

For BLE, we have always either had to use Activity Starter or Permission Request to switch on Fine Location. If the request fails (dependent on Android version) it can be forced to work by loading a Location Sensor component. Without Fine Location, some or all BLE devices may not be found.

[hieu123]

Những gì tôi nhận được khi click vào Start Scanning( tôi chắc chắn mình không hề sửa đổi gì trên dự án của bạn). Tôi đang thực hiện nó trên Android 12

[Anke]

@ChrisWard

For BLE, we have always either had to use Activity Starter or Permission Request to switch on Fine Location.

Try my test APK and my aia. Both work for me (tested on Android 12).

[ChrisWard]

@hieu123

Những gì tôi nhận được khi click vào Start Scanning( tôi chắc chắn mình không hề sửa đổi gì trên dự án của bạn). Tôi đang thực hiện nó trên Android 12

See my post re multiple permissions.

[ChrisWard]

@Anke

Try my test APK and my aia. Both work for me (tested on Android 12).

Depends entirely on your device and the other BLE devices you have. It's more organic than logic.

[Anke]

@hieu123

What I get when click on Start Scanning( I am sure I did not modify anything on your project).

Did you try my APK?

Android10BLETest_copy2.apk

[Anke]

Companion & APK:

[Anke]

@ma720207

This is my reference project
Android10BLETest_copy.aia (186.6 KB)

@ma720207

I try it,but it still fail.

Try this one:
Android10BLETest_copy3.aia (187.1 KB)

I added a BluetoothClient component (as a dummy, which declares the missing permissions in the Manifest). Build the APK and try.

[Anke]

See also here:

Runtime error when using (Lỗi runtime khi sử dụng) BluetoothClient

Try this: [grafik]

Runtime error when using (Lỗi runtime khi sử dụng) BluetoothClient

Fine! If your problem is solved close the topic by clicking on Solution.

[ChrisWard]

@Anke

I added a BluetoothClient component (as a dummy, which declares the missing permissions in the Manifest). Build the APK and try.

.... that's a good spot!

[ma720207]

Hi All,

The typography of the forum responses is a bit weird, so I'm here to thank those who helped me.

I have found the problem

[ChrisWard]

@ma720207

typography

Not sure, but possibly that happens in translation on your Browser.

@ma720207

I have found the problem

We know that?

The best solution is Anke's - add a (Classic BT) BluetoothClient component and the missing permissions will be added to the Manifest.

[Anke]

@ma720207

I have found the problem

... and obviously also the solution (→ post #33).

[ma720207]

Where are the options in this section?
I don't see it in my interface

[ChrisWard]

@ma720207

Where are the options in this section?

Normally FINE_LOCATION is required for BLE. Also, you don't need to request Bluetooth Scan nor Bluetooth Connect - just add a Classic BT Block and the permissions are automatically added to the App's manifest file (As they should be for BLE too, hopefully that will be fixed soon).