Initializing a Fragment












0














I am new to Android and having an issue in initializing Fragment
I am looking at two lines of code and cannot figure out the actual difference between these two approaches and which one to opt. Kindly suggest



 1) SignUpFragment fragment = new SignUpFragment();
2) SignUpFragment fragment = SignUpFragment.newInstance();









share|improve this question





























    0














    I am new to Android and having an issue in initializing Fragment
    I am looking at two lines of code and cannot figure out the actual difference between these two approaches and which one to opt. Kindly suggest



     1) SignUpFragment fragment = new SignUpFragment();
    2) SignUpFragment fragment = SignUpFragment.newInstance();









    share|improve this question



























      0












      0








      0







      I am new to Android and having an issue in initializing Fragment
      I am looking at two lines of code and cannot figure out the actual difference between these two approaches and which one to opt. Kindly suggest



       1) SignUpFragment fragment = new SignUpFragment();
      2) SignUpFragment fragment = SignUpFragment.newInstance();









      share|improve this question















      I am new to Android and having an issue in initializing Fragment
      I am looking at two lines of code and cannot figure out the actual difference between these two approaches and which one to opt. Kindly suggest



       1) SignUpFragment fragment = new SignUpFragment();
      2) SignUpFragment fragment = SignUpFragment.newInstance();






      android-fragments






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 13 at 11:31









      Samuel Robert

      3,25052034




      3,25052034










      asked Nov 13 at 11:05









      Abhilash Gupta

      13




      13
























          3 Answers
          3






          active

          oldest

          votes


















          0














          I personally use the first one as it will make a new object of signupFragment ,while the second option will make a new instance of that class.The difference between both is defined in the below link.



          https://stackoverflow.com/questions/3323330/difference-between-object-and-instance





          share|improve this answer





























            0














            If you have no arguments to pass to fragment you can use first one.



            SignUpFragment fragment = new SignUpFragment();


            But if you have arguments you can use factory methods such as second one to hide creating bundle and putting the arguments' boilerplate codes.



            ProfileFragment fragment = ProfileFragment.newInstance(userId);


            public class ProfileFragment extends Fragment {
            public static ProfileFragment newInstance(int userId) {
            Bundle args = new Bundle();
            args.putInt("userId", userId);
            ProfileFragment fragment = new ProfileFragment();
            fragment.setArguements(args);
            return fragment;
            }
            }





            share|improve this answer































              0















              1) SignUpFragment fragment = new SignUpFragment();




              You should only use in case you do NOT need to create SignUpFragment instance more frequently.




              2) SignUpFragment fragment = SignUpFragment.newInstance();




              This is more recommended approach. In which, you would going to follow Singleton pattern for creating Instance of your class and more generic methods can be created in future if needed.






              share|improve this answer





















              • SignUpFragment.newInstance() is not a singleton pattern. It creates new object event time
                – Samuel Robert
                Nov 13 at 11:39











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              3 Answers
              3






              active

              oldest

              votes








              3 Answers
              3






              active

              oldest

              votes









              active

              oldest

              votes






              active

              oldest

              votes









              0














              I personally use the first one as it will make a new object of signupFragment ,while the second option will make a new instance of that class.The difference between both is defined in the below link.



              https://stackoverflow.com/questions/3323330/difference-between-object-and-instance





              share|improve this answer


























                0














                I personally use the first one as it will make a new object of signupFragment ,while the second option will make a new instance of that class.The difference between both is defined in the below link.



                https://stackoverflow.com/questions/3323330/difference-between-object-and-instance





                share|improve this answer
























                  0












                  0








                  0






                  I personally use the first one as it will make a new object of signupFragment ,while the second option will make a new instance of that class.The difference between both is defined in the below link.



                  https://stackoverflow.com/questions/3323330/difference-between-object-and-instance





                  share|improve this answer












                  I personally use the first one as it will make a new object of signupFragment ,while the second option will make a new instance of that class.The difference between both is defined in the below link.



                  https://stackoverflow.com/questions/3323330/difference-between-object-and-instance






                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Nov 13 at 11:25









                  Saad Maqbool

                  1869




                  1869

























                      0














                      If you have no arguments to pass to fragment you can use first one.



                      SignUpFragment fragment = new SignUpFragment();


                      But if you have arguments you can use factory methods such as second one to hide creating bundle and putting the arguments' boilerplate codes.



                      ProfileFragment fragment = ProfileFragment.newInstance(userId);


                      public class ProfileFragment extends Fragment {
                      public static ProfileFragment newInstance(int userId) {
                      Bundle args = new Bundle();
                      args.putInt("userId", userId);
                      ProfileFragment fragment = new ProfileFragment();
                      fragment.setArguements(args);
                      return fragment;
                      }
                      }





                      share|improve this answer




























                        0














                        If you have no arguments to pass to fragment you can use first one.



                        SignUpFragment fragment = new SignUpFragment();


                        But if you have arguments you can use factory methods such as second one to hide creating bundle and putting the arguments' boilerplate codes.



                        ProfileFragment fragment = ProfileFragment.newInstance(userId);


                        public class ProfileFragment extends Fragment {
                        public static ProfileFragment newInstance(int userId) {
                        Bundle args = new Bundle();
                        args.putInt("userId", userId);
                        ProfileFragment fragment = new ProfileFragment();
                        fragment.setArguements(args);
                        return fragment;
                        }
                        }





                        share|improve this answer


























                          0












                          0








                          0






                          If you have no arguments to pass to fragment you can use first one.



                          SignUpFragment fragment = new SignUpFragment();


                          But if you have arguments you can use factory methods such as second one to hide creating bundle and putting the arguments' boilerplate codes.



                          ProfileFragment fragment = ProfileFragment.newInstance(userId);


                          public class ProfileFragment extends Fragment {
                          public static ProfileFragment newInstance(int userId) {
                          Bundle args = new Bundle();
                          args.putInt("userId", userId);
                          ProfileFragment fragment = new ProfileFragment();
                          fragment.setArguements(args);
                          return fragment;
                          }
                          }





                          share|improve this answer














                          If you have no arguments to pass to fragment you can use first one.



                          SignUpFragment fragment = new SignUpFragment();


                          But if you have arguments you can use factory methods such as second one to hide creating bundle and putting the arguments' boilerplate codes.



                          ProfileFragment fragment = ProfileFragment.newInstance(userId);


                          public class ProfileFragment extends Fragment {
                          public static ProfileFragment newInstance(int userId) {
                          Bundle args = new Bundle();
                          args.putInt("userId", userId);
                          ProfileFragment fragment = new ProfileFragment();
                          fragment.setArguements(args);
                          return fragment;
                          }
                          }






                          share|improve this answer














                          share|improve this answer



                          share|improve this answer








                          edited Nov 13 at 11:30

























                          answered Nov 13 at 11:25









                          Samuel Robert

                          3,25052034




                          3,25052034























                              0















                              1) SignUpFragment fragment = new SignUpFragment();




                              You should only use in case you do NOT need to create SignUpFragment instance more frequently.




                              2) SignUpFragment fragment = SignUpFragment.newInstance();




                              This is more recommended approach. In which, you would going to follow Singleton pattern for creating Instance of your class and more generic methods can be created in future if needed.






                              share|improve this answer





















                              • SignUpFragment.newInstance() is not a singleton pattern. It creates new object event time
                                – Samuel Robert
                                Nov 13 at 11:39
















                              0















                              1) SignUpFragment fragment = new SignUpFragment();




                              You should only use in case you do NOT need to create SignUpFragment instance more frequently.




                              2) SignUpFragment fragment = SignUpFragment.newInstance();




                              This is more recommended approach. In which, you would going to follow Singleton pattern for creating Instance of your class and more generic methods can be created in future if needed.






                              share|improve this answer





















                              • SignUpFragment.newInstance() is not a singleton pattern. It creates new object event time
                                – Samuel Robert
                                Nov 13 at 11:39














                              0












                              0








                              0







                              1) SignUpFragment fragment = new SignUpFragment();




                              You should only use in case you do NOT need to create SignUpFragment instance more frequently.




                              2) SignUpFragment fragment = SignUpFragment.newInstance();




                              This is more recommended approach. In which, you would going to follow Singleton pattern for creating Instance of your class and more generic methods can be created in future if needed.






                              share|improve this answer













                              1) SignUpFragment fragment = new SignUpFragment();




                              You should only use in case you do NOT need to create SignUpFragment instance more frequently.




                              2) SignUpFragment fragment = SignUpFragment.newInstance();




                              This is more recommended approach. In which, you would going to follow Singleton pattern for creating Instance of your class and more generic methods can be created in future if needed.







                              share|improve this answer












                              share|improve this answer



                              share|improve this answer










                              answered Nov 13 at 11:35









                              Bhavesh Patadiya

                              22.2k126899




                              22.2k126899












                              • SignUpFragment.newInstance() is not a singleton pattern. It creates new object event time
                                – Samuel Robert
                                Nov 13 at 11:39


















                              • SignUpFragment.newInstance() is not a singleton pattern. It creates new object event time
                                – Samuel Robert
                                Nov 13 at 11:39
















                              SignUpFragment.newInstance() is not a singleton pattern. It creates new object event time
                              – Samuel Robert
                              Nov 13 at 11:39




                              SignUpFragment.newInstance() is not a singleton pattern. It creates new object event time
                              – Samuel Robert
                              Nov 13 at 11:39


















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