Add regex rule with custom message as well

Author: John Cordeiro

library/src/main/java/br/com/ilhasoft/support/validation/binding/RegexBindings.java

@@ -0,0 +1,26 @@
+package br.com.ilhasoft.support.validation.binding;
+
+import android.databinding.BindingAdapter;
+import android.widget.TextView;
+
+import br.com.ilhasoft.support.validation.R;
+import br.com.ilhasoft.support.validation.rule.RegexRule;
+import br.com.ilhasoft.support.validation.util.EditTextHandler;
+import br.com.ilhasoft.support.validation.util.ErrorMessageHelper;
+import br.com.ilhasoft.support.validation.util.ViewTagHelper;
+
+/**
+ * Created by john-mac on 3/24/17.
+ */
+public class RegexBindings {
+
+    @BindingAdapter(value = {"validateRegex", "validateRegexMessage"}, requireAll = false)
+    public static void bindingRegex(TextView view, String pattern, String errorMessage) {
+        EditTextHandler.disableErrorOnChanged(view);
+
+        String handledErrorMessage = ErrorMessageHelper.getStringOrDefault(view,
+                errorMessage, R.string.error_message_regex_validation);
+        ViewTagHelper.appendValue(R.id.validator_rule, view, new RegexRule(view, pattern, handledErrorMessage));
+    }
+
+}

library/src/main/java/br/com/ilhasoft/support/validation/rule/RegexRule.java

@@ -0,0 +1,32 @@
+package br.com.ilhasoft.support.validation.rule;
+
+import android.widget.TextView;
+
+import org.apache.commons.validator.routines.DateValidator;
+
+import br.com.ilhasoft.support.validation.util.EditTextHandler;
+
+/**
+ * Created by john-mac on 6/16/16.
+ */
+public class RegexRule extends Rule<TextView, String> {
+
+    public RegexRule(TextView view, String value, String errorMessage) {
+        super(view, value, errorMessage);
+    }
+
+    @Override
+    public boolean isValid(TextView view) {
+        return view.getText().toString().matches(value);
+    }
+
+    @Override
+    public void onValidationSucceeded(TextView view) {
+        EditTextHandler.removeError(view);
+    }
+
+    @Override
+    public void onValidationFailed(TextView view) {
+        EditTextHandler.setError(view, errorMessage);
+    }
+}

library/src/main/res/values-es/strings.xml

@@ -3,6 +3,7 @@
     <string name="error_message_min_length">Campo no válido. El número mínimo de caracteres %1$d</string>
     <string name="error_message_max_length">Campo no válido. El número máximo de caracteres %1$d</string>
     <string name="error_message_date_validation">Formato de datos no válido</string>
+    <string name="error_message_regex_validation">Formato no válido</string>
 
     <string name="error_message_email_validation">Formato de correo electrónico no válido</string>
     <string name="error_message_cpf_validation">Formato de CPF no válido</string>

library/src/main/res/values-pt/strings.xml

@@ -3,6 +3,7 @@
     <string name="error_message_min_length">Campo inválido. O número mínimo de caracteres é %1$d</string>
     <string name="error_message_max_length">Campo inválido. O número máximo de caracteres é %1$d</string>
     <string name="error_message_date_validation">Formato de data inválido</string>
+    <string name="error_message_regex_validation">Formato inválido</string>
 
     <string name="error_message_email_validation">Formato do e-mail inválido</string>
     <string name="error_message_cpf_validation">Formato do CPF inválido</string>

library/src/main/res/values/strings.xml

@@ -3,6 +3,7 @@
     <string name="error_message_min_length">Invalid field. The minimum number of characters %1$d</string>
     <string name="error_message_max_length">Invalid field. The maximum number of characters %1$d</string>
     <string name="error_message_date_validation">Invalid data format</string>
+    <string name="error_message_regex_validation">Invalid format</string>
 
     <string name="error_message_email_validation">Invalid email format</string>
     <string name="error_message_username_validation">Invalid username format</string>