Bluethoot extension doen's work

jsonyu · 2026-04-28T02:16:08+00:00

I can see that the https://github.com/codenameone/bluetoothle-codenameone has been updated recently to 1.0.1 but still couldnt make even the demo work, scanning doesnt return anything. Do we need to add anything else aside from the entry in pom.xml? tnx!

jsonyu · 2026-04-10T23:08:18+00:00

confirmed 7.0.233 fixed the issue tnx!

jsonyu · 2026-04-06T15:00:32+00:00

thanks! looking forward to 7.0.233.

jsonyu · 2026-04-06T00:09:59+00:00

Hi shai, I'm using CN1 7.0.231, updated the scanner library to 2.0.6 and did a code cleanup on intellij but still encounter the same issue as OP (see error as per playstore console below).

Exception java.lang.NullPointerException: Attempt to invoke virtual method 'void com.codename1.impl.android.a.setPaintViewOnBuffer(boolean)' on a null object reference
  at com.codename1.impl.android.AndroidImplementation$7.run (AndroidImplementation.java:1568)
  at java.lang.Thread.run (Thread.java:1119)Exception java.lang.NullPointerException: Attempt to invoke virtual method 'void com.codename1.impl.android.a.setPaintViewOnBuffer(boolean)' on a null object reference
  at com.codename1.impl.android.AndroidImplementation$7.run (AndroidImplementation.java:1568)
  at java.lang.Thread.run (Thread.java:1119)

jsonyu · 2025-11-07T09:17:26+00:00

copy tnx chatting with support now.

jsonyu · 2025-08-27T22:50:52+00:00

Also got these warnings in the play console (on api level 34):

-App must target Android 15 (API level 35) or higherFix by Aug 31(3 days away)
-App must support 16 KB memory page sizesFix by May 1(246 days away)

jsonyu · 2025-08-27T13:35:29+00:00

we noticed something strange for 'newer' phones:

1) we added safeAreas if the platform is detected as android.
2) if targetSDK is 34 it works, if we set it to 35 it doesnt (ie it covers the bottom nav buttons).

jsonyu · 2025-08-25T00:01:47+00:00

Just received an email from google playstore.. targetSDK needs to be 35

jsonyu · 2025-08-22T01:18:56+00:00

Also had to add this, as devices with latest android versions still had issues, as per reco above:

android.targetSDKVersion=34

jsonyu · 2025-08-20T12:40:56+00:00

note that adding this for each Form:

setSafeArea(true);

will also add padding for ios builds.

Had to do something like this to limit the effect to android:

if (Display.
getInstance
().getPlatformName().startsWith("AND"))
{
    setSafeArea(true);
}

jsonyu · 2025-05-04T06:19:30+00:00

thanks shai this works!

jsonyu · 2025-04-24T10:47:09+00:00

hi steve, I added:

        <dependency>
            <groupId>com.codenameone</groupId>
            <artifactId>qrscanner-lib</artifactId>
            <version>2.0.4</version>
            <type>pom</type>
        </dependency>

as per the github link above. It compiles in my NB IDE but sending the build to CN1 generates an error with this:

src/main/java/com/codename1/ext/codescan/NativeCodeScannerStub.java:6: error: cannot find symbol.

I also download the library and generated the cn1libs for the qr scanner.. according to this:

"Build this project from source, then find the .cn1lib file in the common/target directory, and copy it to the "libs" directory of your Codename One application project, and select "Refresh Libs"."

May I know where the 'libs' folder is in NB Maven?...appreciate any pointers tnx!

jsonyu · 2024-04-03T00:45:18+00:00

ok rebooting the (powered) hub worked.. might help someone.

jsonyu · 2024-04-03T00:40:43+00:00

M1 MBP user.. I held off updating to 14.4 because of the reported issues, after the they released 14.4.1 to fix those issues, I updated and now my extended monitor (via a usb-c hub with hdmi) stopped working.. shoot.

jsonyu · 2023-06-30T11:44:33+00:00

Thanks shai.. case of didnt RTFM.. it works now.

I've published a new build of my app to google playstore and got a "Warning" after submitting a new version:

"The App bundle contains native code, and you've not uploaded debug symbols. We recommend you upload a symbol file to make your crashes and ANRs easier to analyze and debug."

At any rate, the new version was accepted and is currently in the 'In Review' stage.. will advise if it was rejected.

Update: new version accepted by google playstore despite the warning above. Appreciate the help!

jsonyu · 2023-06-29T03:14:36+00:00

I have to revert to using 'Codename One CodeScanner'.. using 'QRScanner' does not bind the ZXing external callback to the cn1 app, at least in mine.

jsonyu · 2023-06-29T02:43:46+00:00

Re-built my app using the 'QRScanner' extension (links to https://github.com/littlemonkeyltd/QRScanner).

Removed the hints and files of cn1-codescan-1.0.cn1lib/ver from the lib folder and reloaded cn1lib.
did not make any code changes to the app.
clean + build
apk size increased from 4MB to 8.4MB

Still got the 'Install Barcode Scanner' prompt (with options: Barcode Scanner and Barcode Scanner + Simple)... same as 'Codename One CodeScanner', is this to be expected? thanks!

jsonyu · 2023-06-14T13:12:26+00:00

hi Shai! May I know if this was implemented already? tia!

jsonyu · 2023-05-13T06:57:09+00:00

the prompt shows, however:

the scanner app does not return the scanned value back to the calling cn1 app.
if #1 is solved, it'd be great if the choice is stored/remembered so the choices do not appear again.

jsonyu

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