Hi there,
I've a project that reads something from phone´s NFC and it was made more than 1 year ago. Today, we had to install it on a newer android device and I'm getting an error everytime I call:
The error I'm getting is:
I have this in the manifest editor:
I used to have targetSdkVersion 19 when we developed the application.
Any clue on why this is happening?
Thanks.
I've a project that reads something from phone´s NFC and it was made more than 1 year ago. Today, we had to install it on a newer android device and I'm getting an error everytime I call:
B4X:
nfc.EnableForegroundDispatch
The error I'm getting is:
B4X:
** Activity (main) Resume **
Error occurred on line: 141 (Main)
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.nfc.NfcAdapter.enableForegroundDispatch(android.app.Activity, android.app.PendingIntent, android.content.IntentFilter[], java.lang.String[][])' on a null object reference
at anywheresoftware.b4a.objects.NFC.EnableForegroundDispatch(NFC.java:91)
at b4a.NFC2Pos.main._activity_resume(main.java:562)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:348)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:193)
at b4a.NFC2Pos.main.afterFirstLayout(main.java:111)
at b4a.NFC2Pos.main.access$000(main.java:17)
at b4a.NFC2Pos.main$WaitForLayout.run(main.java:83)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5307)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
I have this in the manifest editor:
B4X:
AddManifestText(
<uses-sdk android:minSdkVersion="5" android:targetSdkVersion="29"/>
<supports-screens android:largeScreens="true"
android:normalScreens="true"
android:smallScreens="true"
android:anyDensity="true"/>)
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")
'End of default text.
AddActivityText(main, <intent-filter>
<action android:name="android.nfc.action.NDEF_DISCOVERED"/>
<category android:name="android.intent.category.DEFAULT"/>
<data android:mimeType="text/plain" />
</intent-filter>)
I used to have targetSdkVersion 19 when we developed the application.
Any clue on why this is happening?
Thanks.