Reactive Validator

Reactive Validator is one of the features contained in onelib, Reactive Validator was created with the aim of handling a single input process or one that must be validated with several rules. The way Reactive Validator works is by being extended to an Activity, then you can add a validation listener and what message you want to display if the validation does not match by triggering validation checks.

Example Usage

The first step is to create an Activity then edit the xml as needed. For example

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <androidx.core.widget.NestedScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"
            android:padding="16dp">

            <com.google.android.material.textfield.TextInputLayout
                android:id="@+id/tilEmail"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:hint="Email"
                app:boxBackgroundColor="@color/white"
                android:textColorHint="@color/colorGray">

                <com.google.android.material.textfield.TextInputEditText
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:inputType="textEmailAddress"
                    android:textColorHint="@color/colorGray" />

            </com.google.android.material.textfield.TextInputLayout>

            <com.google.android.material.textfield.TextInputLayout
                android:id="@+id/tilPassword"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:hint="Password"
                app:boxBackgroundColor="@color/white"
                android:textColorHint="@color/colorGray"
                app:passwordToggleEnabled="true">

                <com.google.android.material.textfield.TextInputEditText
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:inputType="textPassword"
                    android:textColorHint="@color/colorGray" />

            </com.google.android.material.textfield.TextInputLayout>

            <com.google.android.material.textfield.TextInputLayout
                android:id="@+id/tilPhone"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:hint="Phone"
                app:boxBackgroundColor="@color/white"
                android:textColorHint="@color/colorGray">

                <com.google.android.material.textfield.TextInputEditText
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:inputType="phone"
                    android:textColorHint="@color/colorGray" />

            </com.google.android.material.textfield.TextInputLayout>

            <com.google.android.material.textfield.TextInputLayout
                android:id="@+id/tilName"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:hint="Name"
                app:boxBackgroundColor="@color/white"
                android:textColorHint="@color/colorGray">

                <com.google.android.material.textfield.TextInputEditText
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:inputType="textPersonName"
                    android:textColorHint="@color/colorGray" />

            </com.google.android.material.textfield.TextInputLayout>

            <com.google.android.material.textfield.TextInputLayout
                android:id="@+id/tilLongName"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:hint="Long Name"
                app:boxBackgroundColor="@color/white"
                android:textColorHint="@color/colorGray">

                <com.google.android.material.textfield.TextInputEditText
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:inputType="textPersonName"
                    android:textColorHint="@color/colorGray" />

            </com.google.android.material.textfield.TextInputLayout>


            <com.google.android.material.textfield.TextInputLayout
                android:id="@+id/tilNotEmpty"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:hint="Not Empty"
                app:boxBackgroundColor="@color/white"
                android:textColorHint="@color/colorGray">

                <com.google.android.material.textfield.TextInputEditText
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:textColorHint="@color/colorGray" />

            </com.google.android.material.textfield.TextInputLayout>

            <androidx.appcompat.widget.AppCompatButton
                android:id="@+id/btnValidation"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="24dp"
                android:enabled="false"
                android:text="Validate" />

        </LinearLayout>
    </androidx.core.widget.NestedScrollView>
</LinearLayout>

Then, implement ReactiveFormActivity<binding> inside the activity that was created earlier. For example

class ReactiveValidationActivity : ReactiveFormActivity<ActivityReactiveValidationBinding>() {

    companion object {
        fun start(context: Context) {
            context.startActivity(Intent(context, ReactiveValidationActivity::class.java))
        }
    }

    override fun getViewBinding(): ActivityReactiveValidationBinding =
        ActivityReactiveValidationBinding.inflate(layoutInflater)

    override fun initUI() {}

    override fun initAction() {}

    override fun initProcess() {}

    override fun initObservers() {}

    override fun onValidationFailed() {
        binding.btnValidation.disable()
    }

    override fun onValidationSuccess() {
        binding.btnValidation.enable()
    }

    override fun setupValidation() {
        with(binding) {
            addValidation(
                Validation(
                    tilEmail, listOf(
                        notEmptyRule(getString(R.string.error_field_required)),
                        emailRule(getString(R.string.error_email_invalid))
                    )
                ),
                Validation(
                    tilPassword, listOf(
                        notEmptyRule(getString(R.string.error_field_required))
                    )
                ),
                Validation(
                    tilPhone, listOf(
                        notEmptyRule(getString(R.string.error_field_required)),
                        minMaxLengthRule(
                            getString(R.string.error_phone_number),
                            Constant.MIN_LENGTH,
                            Constant.MAX_LENGTH
                        )
                    )
                ),
                Validation(
                    tilName, listOf(
                        notEmptyRule(getString(R.string.error_field_required)),
                        alphabetOnlyRule(getString(R.string.error_alphabet))
                    )
                ),
                Validation(
                    tilLongName, listOf(
                        alphabetSpaceOnly(getString(R.string.error_field_required))
                    )
                ),
                Validation(
                    tilNotEmpty, listOf(
                        notEmptyRule(getString(R.string.error_field_required))
                    )
                )
            )
        }
    }
}

Result