android - Check if an application is on its first run with Kotlin

Question

Basically, I want to have a screen/view that will open when the user opens up the app for the first time. This will be a login screen type of thing.

there are classes SplashActivity

class SplashActivity : AppCompatActivity() {


    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        //hiding title bar of this activity
        window.requestFeature(Window.FEATURE_NO_TITLE)
        //making this activity full screen
        window.setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN)
        setContentView(R.layout.activity_splash)

        //4second splash time
        Handler().postDelayed({
            //start main activity
            startActivity(Intent(this@SplashActivity, MyCustomAppIntro::class.java))
            //finish this activity
            finish()
        },2000)
    }
}

class MyCustomAppIntro

class MyCustomAppIntro : AppIntro() {




    companion object {
        fun startActivity(context: Context) {
            val intent = Intent(context, MyCustomAppIntro::class.java)
            context.startActivity(intent)

        }
    }
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        setTransformer(AppIntroPageTransformerType.Depth)
        // You can customize your parallax parameters in the constructors.
        setTransformer(AppIntroPageTransformerType.Parallax(
                titleParallaxFactor = 1.0,
                imageParallaxFactor = -1.0,
                descriptionParallaxFactor = 2.0
        ))

             // Make sure you don't call setContentView!

        // Call addSlide passing your Fragments.
        // You can use AppIntroFragment to use a pre-built fragment
        addSlide(
            AppIntroFragment.newInstance(
            imageDrawable = R.drawable.ayana,
                backgroundDrawable = R.color.black,
                        description = "Привет мой друг"

        ))
        addSlide(
                AppIntroFragment.newInstance(
                        imageDrawable = R.drawable.ayana,
                        backgroundDrawable = R.color.black,
                        description = "Меня зовут AYANA"
        ))
        addSlide(
                AppIntroFragment.newInstance(
                        backgroundDrawable = R.drawable.screen_3

                ))
    }

    override fun onSkipPressed(currentFragment: Fragment?) {
        super.onSkipPressed(currentFragment)
        // Decide what to do when the user clicks on "Skip"
        val intent = Intent(this,MainActivity::class.java)
        startActivity(intent);


        finish()
    }

    override fun onDonePressed(currentFragment: Fragment?) {
        super.onDonePressed(currentFragment)
        val intent = Intent(this,MainActivity::class.java)
        startActivity(intent);
        finish()
    }

class MainActivity

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {

        super.onCreate(savedInstanceState)
        setContentView(R.layout.layout_activity_main)

        window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)



        about.setOnClickListener{
            val intent = Intent(this,ScondActivity::class.java)
            startActivity(intent);
        }


        val assistantFragment = AimyboxAssistantFragment()

        supportFragmentManager.beginTransaction().apply {
            replace(R.id.assistant_container, assistantFragment)
            commit()
        }
    }

    override fun onBackPressed() {
        val assistantFragment = (supportFragmentManager.findFragmentById(R.id.assistant_container)
                as? AimyboxAssistantFragment)
        if (assistantFragment?.onBackPressed() != true) super.onBackPressed()
    }

}

We suggest to don't declare MyCustomAppIntro as your first Activity unless you want the intro to launch every time your app starts. Ideally you should show the AppIntro activity only once to the user, and you should hide it once completed (you can use a flag in the SharedPreferences) ????

question from:https://stackoverflow.com/questions/65651306/check-if-an-application-is-on-its-first-run-with-kotlin

Answer 1

Use SharedPreference for that Issue, its quite easy and simple approach:

Splash Activity:

SharedPreference sharedpref = getApplicationContext.getSharedPreferences(SETTINGS_PREFERENCES,MODE_PRIVATE);

String token = sharedPreferences.getString("token", null);

if (token.equals("False") || token == null){

    //will call the view for the first and last time until cache is cleared

    //after trigger this login programmatically set the token value true thus you can solve the problem  
    
    SharedPreferences.Editor editor = sharedpref.edit();
                                    editor.putString("token", "True");
                                    editor.apply();

}else{
    //do something or redirect to login or main activity
}