This crashHandler shows the crash logs on the device when the app crashes

LoggerCrashHandler.kt

import androidx.fragment.app.FragmentActivity

class LoggerCrashHandler(private val app: FragmentActivity) : Thread.UncaughtExceptionHandler {
    private val defaultUEH: Thread.UncaughtExceptionHandler? =
        Thread.getDefaultUncaughtExceptionHandler()

    override fun uncaughtException(t: Thread, e: Throwable) {
        var arr = e.stackTrace
        var report = "$e\n\n"
        report += "--------- Stack trace ---------\n\n"
        for (item in arr) {
            report += "    $item\n"
        }
        report += "-------------------------------\n\n"

        // If the exception was thrown in a background thread inside
        // AsyncTask, then the actual exception can be found with getCause

        report += "--------- Cause ---------\n\n"
        val cause = e.cause
        if (cause != null) {
            report += "$cause\n\n"
            arr = cause.stackTrace
            for (log in arr) {
                report += "   $log\n "
            }
        }
        report += "-------------------------------\n\n"

        CrashActivity.startActivity(report, app)
        defaultUEH?.uncaughtException(t, e)
    }
}

To use, Hook up to your desired activity by adding this after onCreate: Thread.setDefaultUncaughtExceptionHandler(LoggerCrashHandler(this))
credit: https://stackoverflow.com/a/59653258/5604736