mandybess · January 7, 2019 03:27 · May 2, 2016 · May 2, 2016
diff --git a/SignUpActivity.java b/SignUpActivity.java
@@ -22,9 +22,8 @@ public class SignUpActivity extends Activity implements SignUpView {
   protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
 
+    //must inflate views before presenter
     presenter = new SignUpPresenterImpl(this);
-
-
   }
 
   @Override

diff --git a/SignUpActivity.java b/SignUpActivity.java
@@ -0,0 +1,99 @@
+port android.app.Activity;
+import android.os.Bundle;
+import android.widget.Button;
+import android.widget.EditText;
+import club.smartsavers.presenters.SignUpPresenter;
+import club.smartsavers.presenters.SignUpPresenterImpl;
+import com.jakewharton.rxbinding.widget.RxTextView;
+import rx.Observable;
+
+public class SignUpActivity extends Activity implements SignUpView {
+
+  EditText firstName;
+  EditText lastName;
+  EditText email;
+  EditText zipCode;
+  EditText password;
+  Button submitButton;
+
+  SignUpPresenter presenter;
+
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+
+    presenter = new SignUpPresenterImpl(this);
+
+
+  }
+
+  @Override
+  public void showProgress() {
+
+  }
+
+  @Override
+  public void hideProgress() {
+
+  }
+
+  @Override
+  public void showFirstNameError(CharSequence error) {
+    firstName.setError(error);
+  }
+
+  @Override
+  public void showLastNameError(CharSequence error) {
+    lastName.setError(error);
+  }
+
+  @Override
+  public void showEmailError(CharSequence error) {
+    email.setError(error);
+  }
+
+  @Override
+  public void showZipCodeError(CharSequence error) {
+    zipCode.setError(error);
+  }
+
+  @Override
+  public void showPasswordError(CharSequence error) {
+    password.setError(error);
+  }
+
+  @Override
+  public void navigateToMainScreen() {
+
+  }
+
+  @Override
+  public void updateSubmitButtonViewState(boolean enabled) {
+    submitButton.setEnabled(enabled);
+  }
+
+  @Override
+  public Observable<CharSequence> firstName() {
+    return RxTextView.textChanges(firstName);
+  }
+
+  @Override
+  public Observable<CharSequence> lastName() {
+    return RxTextView.textChanges(lastName);
+  }
+
+  @Override
+  public Observable<CharSequence> email() {
+    return RxTextView.textChanges(email);
+  }
+
+  @Override
+  public Observable<CharSequence> zipCode() {
+    return RxTextView.textChanges(zipCode);
+  }
+
+  @Override
+  public Observable<CharSequence> password() {
+    return RxTextView.textChanges(password);
+  }
+}
diff --git a/SignUpPresenter.java b/SignUpPresenter.java
@@ -0,0 +1,113 @@
+import android.content.Context;
+import club.smartsavers.R;
+import club.smartsavers.views.SignUpView;
+import rx.Observable;
+import rx.functions.Action1;
+import rx.functions.Func1;
+import rx.functions.Func5;
+
+public class SignUpPresenter implements Presenter<SignUpView> {
+
+  private SignUpView signUpView;
+  private final Context context;
+
+  public SignUpPresenter(Context context) {
+    this.context = context;
+  }
+
+  public Func1<CharSequence, Boolean> isFirstNameValid() {
+    return textViewAfterTextChangeEvent -> FIRST_NAME_VALIDITY_CHECK;
+  }
+
+  public Action1<Boolean> updateFirstNameViewState() {
+    return isValid -> {
+      if (!isValid) {
+        signUpView.showFirstNameError(context.getString(R.string.first_name_field_validity_error));
+      }
+    };
+  }
+
+  public Func1<CharSequence, Boolean> isLastNameValid() {
+    return textViewAfterTextChangeEvent -> LAST_NAME_VALIDITY_CHECK;
+  }
+
+  public Action1<Boolean> updateLastNameViewState() {
+    return isValid -> {
+      if (!isValid) {
+        signUpView.showLastNameError(context.getString(R.string.last_name_field_validity_error));
+      }
+    };
+  }
+
+  public Func1<CharSequence, Boolean> isEmailValid() {
+    return textViewAfterTextChangeEvent -> EMAIL_VALIDITY_CHECK;
+  }
+
+  public Action1<Boolean> updateEmailViewState() {
+    return isValid -> {
+      if (!isValid) {
+        signUpView.showEmailError(context.getString(R.string.email_field_validity_error));
+      }
+    };
+  }
+
+  public Func1<CharSequence, Boolean> isZipCodeValid() {
+    return textViewAfterTextChangeEvent -> ZIPCODE_VALIDITY_CHECK;
+  }
+
+  public Action1<Boolean> updateZipCodeViewState() {
+    return isValid -> {
+      if (!isValid) {
+        signUpView.showZipCodeError(context.getString(R.string.zipcode_field_validity_error));
+      }
+    };
+  }
+
+  public Func1<CharSequence, Boolean> isPasswordValid() {
+    return textViewAfterTextChangeEvent -> PASSWORD_VALIDITY_CHECK;
+  }
+
+  public Action1<Boolean> updatePasswordViewState() {
+    return isValid -> {
+      if (!isValid) {
+        signUpView.showPasswordError(context.getString(R.string.password_field_validity_error));
+      }
+    };
+  }
+
+  public Func5<Boolean, Boolean, Boolean, Boolean, Boolean, Boolean> isFormValid() {
+    return (isFirsNameValid, isLastNameValid, isEmailValid, isZipCodeValid, isPasswordValid) ->
+        isFirsNameValid
+            && isLastNameValid
+            && isEmailValid
+            && isZipCodeValid
+            && isPasswordValid;
+  }
+
+  @Override
+  public void attachView(SignUpView mvpView) {
+    signUpView = mvpView;
+
+    Observable<Boolean> firstNameObservable = signUpView.firstName().map(isFirstNameValid());
+    Observable<Boolean> lastNameObservable = signUpView.lastName().map(isLastNameValid());
+    Observable<Boolean> emailObservable = signUpView.email().map(isEmailValid());
+    Observable<Boolean> zipCodeObservable = signUpView.zipCode().map(isZipCodeValid());
+    Observable<Boolean> passwordObservable = signUpView.password().map(isPasswordValid());
+
+    firstNameObservable.subscribe(updateFirstNameViewState());
+    lastNameObservable.subscribe(updateLastNameViewState());
+    emailObservable.subscribe(updateEmailViewState());
+    zipCodeObservable.subscribe(updateZipCodeViewState());
+    passwordObservable.subscribe(updatePasswordViewState());
+
+    Observable.combineLatest(firstNameObservable, lastNameObservable, emailObservable,
+        zipCodeObservable, passwordObservable, isFormValid()).subscribe(isValid -> {
+      signUpView.updateSubmitButtonViewState(isValid);
+    });
+  }
+
+  @Override
+  public void detachView() {
+
+  }
+}
diff --git a/SignUpView.java b/SignUpView.java
@@ -0,0 +1,32 @@
+import rx.Observable;
+
+public interface SignUpView extends BaseView {
+
+  void showProgress();
+
+  void hideProgress();
+
+  Observable<CharSequence> firstName();
+
+  Observable<CharSequence> lastName();
+
+  Observable<CharSequence> email();
+
+  Observable<CharSequence> zipCode();
+
+  Observable<CharSequence> password();
+
+  void showFirstNameError(CharSequence error);
+
+  void showLastNameError(CharSequence error);
+
+  void showEmailError(CharSequence error);
+
+  void showZipCodeError(CharSequence error);
+
+  void showPasswordError(CharSequence error);
+
+  void updateSubmitButtonViewState(boolean enabled);
+
+  void navigateToMainScreen();
+}
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