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  • How to use Shared Perference in android?

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    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);
        }
    
    }
    

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