Here I have created Shared Perference function. Shared PerFerence is used to display a screen with some text fields. Shared Perference saved value is used when we close application. The below code will clearly describe you how to use Shared Perference.

Step(1)Create SplashScreenActivity -

public class SplashScreenActivity extends Activity {
    private static final int SPLASH_TIME_OUT = 1000;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.activity_splash_screen);

        Timer timer = new Timer();
        timer.schedule(new TimerTask() {

            public void run() {
                SharedPreferenceManager preferenceManager = SharedPreferenceManager.getInstance();

                if (preferenceManager.getUserToken(SplashScreenActivity.this)==null ) {
                    Intent intent = new Intent(SplashScreenActivity.this, LoginActivity.class);
                    preferenceManager.setLoginCheck(SplashScreenActivity.this, true);
                    startActivity(intent);
                    finish();
                } else {
                    Intent intent = new Intent(SplashScreenActivity.this, HomeScreenActivity.class);
                    startActivity(intent);
                    finish();
                }
            }
        }, SPLASH_TIME_OUT);
    }
}

Step(2)-Create a SharedPreferenceManager class-

public class SharedPreferenceManager {

    private static final String PREFS_INFO = "prefs_info";
    private static final String REM_INFO = "rem_info";

    private SharedPreferenceManager()
    {
    }
    private static SharedPreferenceManager manager;
    public static SharedPreferenceManager getInstance()
    {
        if(manager==null)
        {
            manager=new SharedPreferenceManager();
        }
        return manager;
    }
    public SharedPreferences getSharedPrefernces(Context context)
    {
        return context.getSharedPreferences(PREFS_INFO, 0);
    }

    public static void clearCredentials(Context context){
        SharedPreferences preferences = (SharedPreferences)context.getSharedPreferences(REM_INFO,0);
        SharedPreferences.Editor editor = preferences.edit();
        editor.clear();
        editor.commit();
    }

    public void setLoginCheck(Context context, Boolean check){

        SharedPreferences preferences = (SharedPreferences)context.getSharedPreferences(REM_INFO,0);
        SharedPreferences.Editor editor = preferences.edit();
        editor.putBoolean("check", check);
        editor.commit();
    }

    public static boolean getLoginCheck(Context context){

        SharedPreferences preferences = (SharedPreferences)context.getSharedPreferences(REM_INFO,0);
        return preferences.getBoolean("check", false);
    }

    public void setRememberStatus(Context context, Boolean remember){

        SharedPreferences preferences = (SharedPreferences)context.getSharedPreferences(PREFS_INFO,0);
        SharedPreferences.Editor editor = preferences.edit();
        editor.putBoolean("remember", remember);
        editor.commit();
    }

    public static Boolean getRememberStatus(Context context){

        SharedPreferences preferences = (SharedPreferences)context.getSharedPreferences(PREFS_INFO,0);
        return preferences.getBoolean("remember", false);
    }

    public void setEmailStatus(Context context,String email){

        SharedPreferences preferences=(SharedPreferences)context.getSharedPreferences(PREFS_INFO,0);
        SharedPreferences.Editor editor=preferences.edit();
        editor.putString("mailid", email);
        editor.commit();
    }

    public static String getEmailStatus(Context context){
        SharedPreferences preferences=(SharedPreferences)context.getSharedPreferences(PREFS_INFO,0);
        return preferences.getString("mailid", null);
    }

    public void setPasswordStatus(Context context,String password){
        SharedPreferences preferences=(SharedPreferences)context.getSharedPreferences(PREFS_INFO,0);
        SharedPreferences.Editor editor=preferences.edit();
        editor.putString("pass",password);
        editor.commit();
    }

    public static String getPasswordStatus(Context context){
        SharedPreferences preferences=(SharedPreferences)context.getSharedPreferences(PREFS_INFO,0);
        return preferences.getString("pass",null);
    }

    public void setUserId(Context context, String id){

        SharedPreferences preferences = (SharedPreferences)context.getSharedPreferences(REM_INFO,0);
        SharedPreferences.Editor editor = preferences.edit();
        editor.putString("id", id);
        editor.commit();
    }

    public static String getUserId(Context context){

        SharedPreferences preferences = (SharedPreferences)context.getSharedPreferences(REM_INFO,0);
        return preferences.getString("id", null);
    }

    public void setUserName(Context context, String name){

        SharedPreferences preferences = (SharedPreferences)context.getSharedPreferences(REM_INFO,0);
        SharedPreferences.Editor editor = preferences.edit();
        editor.putString("name", name);
        editor.commit();
    }

    public static String getUserName(Context context){

        SharedPreferences preferences = (SharedPreferences)context.getSharedPreferences(REM_INFO,0);
        return preferences.getString("name", null);
    }

    public void setUserToken(Context context, String token){

        SharedPreferences preferences = (SharedPreferences)context.getSharedPreferences(REM_INFO,0);
        SharedPreferences.Editor editor = preferences.edit();
        editor.putString("token", token);
        editor.commit();
    }

    public String getUserToken(Context context){

        SharedPreferences preferences = (SharedPreferences)context.getSharedPreferences(REM_INFO,0);
        return preferences.getString("token", null);
    }

    public void setUserEmail(Context context,String useremail){

        SharedPreferences preferences=(SharedPreferences)context.getSharedPreferences(REM_INFO,0);
        SharedPreferences.Editor editor=preferences.edit();
        editor.putString("useremail", useremail);
        editor.commit();
    }

    public String getUserEmail(Context context){
        SharedPreferences preferences=(SharedPreferences)context.getSharedPreferences(REM_INFO,0);
        return preferences.getString("useremail", null);
    }

}