Font size of TextView in Android application changes on changing font size from native settings

Question

I want to specify my own text size in my application, but I am having a problem doing this.

When I change the font size in the device settings, the font size of my

Answer 1

this solutions is with Kotlin and without using the deprecated function resources.updateConfiguration

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        adjustFontScale(resources.configuration)
    }

    private fun adjustFontScale(configuration: Configuration?) {
        configuration?.let {
            it.fontScale = 1.0F
            val metrics: DisplayMetrics = resources.displayMetrics
            val wm: WindowManager = getSystemService(Context.WINDOW_SERVICE) as WindowManager
            wm.defaultDisplay.getMetrics(metrics)
            metrics.scaledDensity = configuration.fontScale * metrics.density

            baseContext.applicationContext.createConfigurationContext(it)
            baseContext.resources.displayMetrics.setTo(metrics)

        }
    }

Observation: this is the same solution as the above but udpated with Kotlin