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<Button
        android:id="@+id/register"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Register"
        android:layout_gravity="center"
        android:layout_marginTop="5dp"
        android:onClick="@{() -> RegisterViewModel.onCLicked()}"
        bind:toastMessageAction="@{RegisterViewModel.toastMessage}"/>

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<Button
                    android:id="@+id/register"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="Register"
                    android:layout_gravity="center"
                    android:layout_marginTop="5dp"
                    android:onClick="@{() -> RegisterViewModel.onCLicked()}"
                    bind:toastMessageAction="@{RegisterViewModel.toastMessage}"/>

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<EditText
            android:id="@+id/username"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="Username"
            android:maxLines="1"
            android:inputType="text"
            android:text="@={RegisterViewModel.username}"/>

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<data>
        <variable
                name="RegisterViewModel"
                type="com.example.mvvm_example.viewmodels.RegisterViewModel">
        </variable>
    </data>

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<?xml version="1.0" encoding="utf-8"?>
<layout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:bind="http://schemas.android.com/tools">
    <data>
        <variable
                name="RegisterViewModel"
                type="com.example.mvvm_example.viewmodels.RegisterViewModel">
        </variable>
    </data>

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companion object {
        @BindingAdapter("toastMessageAction")
        @JvmStatic
        fun runMe(view: View, message: String?) {
            message?.let {
                Toast.makeText(view.context, it, Toast.LENGTH_SHORT).show()
            }
        }
    }
}

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class RegisterViewModel : BaseObservable() {

    private var register = RegisterDataModel("", "", "")
    @Bindable
    private var toastMessage: String? = null

    private fun isValid(): Boolean {
        return getUsername().isNotEmpty() && getPassword().isNotEmpty() && getCountry().isNotEmpty()
    }

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data class RegisterDataModel(var username: String, var password: String, var country: String)

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package com.indieteam.android_permission_simple

import android.Manifest
import android.content.Context
import android.content.pm.PackageManager
import android.location.LocationManager
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.Toast
import androidx.core.app.ActivityCompat

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 private fun getCurrentLocation()  {
        if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
            val locationManager = getSystemService(Context.LOCATION_SERVICE) as LocationManager
            val location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER)

            location?.let {
                it.apply {
                    val lat = latitude
                    val lon = longitude
                    texview.text = "Lat: $lat \n Lon: $lon"