Dagger2 record, dagger2 record

Dagger2 record, dagger2 record

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Build project

Build module

Application

Public class App extends Application {private AppComponent appComponent; @ Override public void onCreate () {super. onCreate (); appComponent = DaggerAppComponent. builder (). appModule (new AppModule (this )). build () ;}public AppComponent getAppComponent () {return appComponent ;}}View Code

AppComponent

@ Singleton @ Component (modules = {AppModule. class}) public interface AppComponent {@ ContextLife ("Application") App getApplication (); extends fithelper (); // provides http help class}View Code

AppModule

@ Modulepublic class AppModule {private App application; public AppModule (App application) {this. application = application ;}@ Provides @ Singleton @ ContextLife ("Application") public App provideApplication () {return application ;}@ Provides @ Singleton public login fithelper provideRetrofitHelper () {return new response fithelper ();}}View Code

ActivityComponent

@ ActivityScope @ Component (dependencies = AppComponent. class, modules = ActivityModule. class) // Associate public interface ActivityComponent {Activity getActivity (); void inject (LoginActivity loginActivity); // use the void inject (MainActivity mainActivity) function in the class );}View Code

ActivityModule

@ Modulepublic class ActivityModule {private Activity mActivity; public ActivityModule (Activity activity) {this. mActivity = activity;} @ Provides @ ActivityScope public Activity provideActivity () {return mActivity;} @ Provides @ ActivityScope public IPresenterFactory providePresenter (Response fithelper response fithelper) {return new PresenterFactory (Response fithelper );}}View Code

Use injection in the Base; otherwise, the injection will fail.

Public abstract class PresenterActivity extends BaseActivity {private final static String TAG = "PresenterActivity"; protected abstract void initInject (); @ Override protected void onCreate (@ Nullable Bundle savedInstanceState) {super. onCreate (savedInstanceState); initInject ();} protected ActivityComponent getActivityComponent () {return DaggerActivityComponent. builder (). appComponent (App. getInstance (). getAppComponent ()). activityModule (getActivityModule ()). build ();} private ActivityModule getActivityModule () {return new ActivityModule (this );}}View Code

Now all the prerequisites are available.

Click Run to automatically generate the injection code (no problem)

Use injection:

Public class MainActivity extends PresenterActivity {@ Inject protected IPresenterFactory mPresenter; // no object is created. inject label injection type private final int injection = 100; private TextView username; @ Override public void findView () {username = findView (R. id. username); username. setText (App. getInstance (). getUserEntity (). getName () + "hello") ;}@ Override public void init () {if (mPresenter! = Null) {Toasts. showShort ("mPresenter success", context); // If the injection is successful, success will be printed.} @ Override public int layoutResID () {return R. layout. activity_main ;}@ Override protected void initInject () {getActivityComponent (). inject (this) ;}@ Subscribe (threadMode = ThreadMode. MAIN) public void onEvent () {Toasts. showShort ("Refresh UI", context );}}