How to perform a Dagger 2 Constructor, Method, Field Injection?










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I'm practicing dagger 2 for a week now, I just want to know the difference of these injections(constructor, method, field), and where should I use them.










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    I'm practicing dagger 2 for a week now, I just want to know the difference of these injections(constructor, method, field), and where should I use them.










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      I'm practicing dagger 2 for a week now, I just want to know the difference of these injections(constructor, method, field), and where should I use them.










      share|improve this question














      I'm practicing dagger 2 for a week now, I just want to know the difference of these injections(constructor, method, field), and where should I use them.







      android dependency-injection dagger-2






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      asked Nov 15 '18 at 7:28









      Christian Paul DecembranaChristian Paul Decembrana

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          Constructor: whenever you've the possibility to do so (when you have access to the constructor, for example, with your presenters if you use MVP pattern).



          Field: when you don't have access to the constructor, for exemple when injecting in your Activity or Fragment.



          Method: an @Inject annotated method will be executed by Dagger as soon as the construction call has finished. We usually use it when we want to pass class instance itself (this reference) to injected dependencies.



          Read this for more informations and examples of use cases.






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          • Thank you for you help.

            – Christian Paul Decembrana
            Nov 16 '18 at 10:08










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          1 Answer
          1






          active

          oldest

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          oldest

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          active

          oldest

          votes









          0














          Constructor: whenever you've the possibility to do so (when you have access to the constructor, for example, with your presenters if you use MVP pattern).



          Field: when you don't have access to the constructor, for exemple when injecting in your Activity or Fragment.



          Method: an @Inject annotated method will be executed by Dagger as soon as the construction call has finished. We usually use it when we want to pass class instance itself (this reference) to injected dependencies.



          Read this for more informations and examples of use cases.






          share|improve this answer























          • Thank you for you help.

            – Christian Paul Decembrana
            Nov 16 '18 at 10:08















          0














          Constructor: whenever you've the possibility to do so (when you have access to the constructor, for example, with your presenters if you use MVP pattern).



          Field: when you don't have access to the constructor, for exemple when injecting in your Activity or Fragment.



          Method: an @Inject annotated method will be executed by Dagger as soon as the construction call has finished. We usually use it when we want to pass class instance itself (this reference) to injected dependencies.



          Read this for more informations and examples of use cases.






          share|improve this answer























          • Thank you for you help.

            – Christian Paul Decembrana
            Nov 16 '18 at 10:08













          0












          0








          0







          Constructor: whenever you've the possibility to do so (when you have access to the constructor, for example, with your presenters if you use MVP pattern).



          Field: when you don't have access to the constructor, for exemple when injecting in your Activity or Fragment.



          Method: an @Inject annotated method will be executed by Dagger as soon as the construction call has finished. We usually use it when we want to pass class instance itself (this reference) to injected dependencies.



          Read this for more informations and examples of use cases.






          share|improve this answer













          Constructor: whenever you've the possibility to do so (when you have access to the constructor, for example, with your presenters if you use MVP pattern).



          Field: when you don't have access to the constructor, for exemple when injecting in your Activity or Fragment.



          Method: an @Inject annotated method will be executed by Dagger as soon as the construction call has finished. We usually use it when we want to pass class instance itself (this reference) to injected dependencies.



          Read this for more informations and examples of use cases.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 15 '18 at 7:37









          BenjaminBenjamin

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          2,60921533












          • Thank you for you help.

            – Christian Paul Decembrana
            Nov 16 '18 at 10:08

















          • Thank you for you help.

            – Christian Paul Decembrana
            Nov 16 '18 at 10:08
















          Thank you for you help.

          – Christian Paul Decembrana
          Nov 16 '18 at 10:08





          Thank you for you help.

          – Christian Paul Decembrana
          Nov 16 '18 at 10:08



















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