Use native string formatter (#475)

Author: SUPERCILEX

auth/src/main/java/com/firebase/ui/auth/ui/accountlink/WelcomeBackIdpPrompt.java

@@ -113,8 +113,9 @@ public void onClick(View view) {
     }
 
     private String getIdpPromptString(String email) {
-        String promptStringTemplate = getResources().getString(R.string.welcome_back_idp_prompt);
-        return String.format(promptStringTemplate, email, mIdpProvider.getName(this));
+        return  getResources().getString(R.string.welcome_back_idp_prompt,
+                                         email,
+                                         mIdpProvider.getName(this));
     }
 
     @Override

auth/src/main/java/com/firebase/ui/auth/ui/accountlink/WelcomeBackPasswordPrompt.java

@@ -79,8 +79,7 @@ protected void onCreate(Bundle savedInstanceState) {
         mPasswordField = (EditText) findViewById(R.id.password);
 
         // Create welcome back text with email bolded
-        String bodyText = getResources().getString(R.string.welcome_back_password_prompt_body);
-        bodyText = String.format(bodyText, mEmail);
+        String bodyText = getResources().getString(R.string.welcome_back_password_prompt_body, mEmail);
         SpannableStringBuilder spannableStringBuilder = new SpannableStringBuilder(bodyText);
         int emailStart = bodyText.indexOf(mEmail);
         spannableStringBuilder.setSpan(new StyleSpan(Typeface.BOLD),

auth/src/main/java/com/firebase/ui/auth/ui/email/RecoveryEmailSentDialog.java

@@ -21,8 +21,8 @@ public class RecoveryEmailSentDialog extends DialogBase {
     public Dialog onCreateDialog(Bundle savedInstanceState) {
         return new AlertDialog.Builder(getContext(), R.style.FirebaseUI_Dialog)
                 .setTitle(R.string.title_confirm_recover_password_activity)
-                .setMessage(String.format(getString(R.string.confirm_recovery_body),
-                                          getArguments().getString(ExtraConstants.EXTRA_EMAIL)))
+                .setMessage(getString(R.string.confirm_recovery_body,
+                                      getArguments().getString(ExtraConstants.EXTRA_EMAIL)))
                 .setOnDismissListener(new DialogInterface.OnDismissListener() {
                     @Override
                     public void onDismiss(DialogInterface anInterface) {

auth/src/main/java/com/firebase/ui/auth/ui/email/fieldvalidators/PasswordFieldValidator.java

@@ -24,9 +24,8 @@ public class PasswordFieldValidator extends BaseValidator {
     public PasswordFieldValidator(TextInputLayout errorContainer, int minLength) {
         super(errorContainer);
         mMinLength = minLength;
-        String template = mErrorContainer.getResources()
-                .getQuantityString(R.plurals.password_length, minLength);
-        mErrorMessage = String.format(template, mMinLength);
+        mErrorMessage = mErrorContainer.getResources()
+                .getQuantityString(R.plurals.password_length, minLength, mMinLength);
     }
 
     @Override