TextInputLayout temporary workaround for helper text showing

custom_input_layout_res.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <declare-styleable name="CustomTextInputLayout">
        <attr name="helperText" format="string"/>
        <attr name="helperTextColor" format="color|reference"/>
    </declare-styleable>

    <style name="HelperTextAppearance" parent="TextAppearance.Design.Error">
        <item name="android:textColor">@color/secondary_text</item>
    </style>
</resources>

CustomTextInputLayout.java

package com.example.d_rom.supportdesigndemo.widget;

import android.content.Context;
import android.content.res.ColorStateList;
import android.content.res.TypedArray;
import android.support.design.widget.TextInputLayout;
import android.support.v4.view.ViewCompat;
import android.support.v4.view.ViewPropertyAnimatorListenerAdapter;
import android.support.v4.view.animation.FastOutSlowInInterpolator;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.Interpolator;
import android.widget.EditText;
import android.widget.TextView;

import com.example.d_rom.supportdesigndemo.R;

/**
 * TextInputLayout temporary workaround for helper text showing
 */
public class CustomTextInputLayout extends TextInputLayout {

    static final Interpolator FAST_OUT_SLOW_IN_INTERPOLATOR = new FastOutSlowInInterpolator();

    private CharSequence mHelperText;
    private ColorStateList mHelperTextColor;
    private boolean mHelperTextEnabled = false;
    private boolean mErrorEnabled = false;
    private TextView mHelperView;
    private int mHelperTextAppearance = R.style.HelperTextAppearance;

    public CustomTextInputLayout(Context _context) {
        super(_context);
    }

    public CustomTextInputLayout(Context _context, AttributeSet _attrs) {
        super(_context, _attrs);

        final TypedArray a = getContext().obtainStyledAttributes(
                _attrs,
                R.styleable.CustomTextInputLayout,0,0);
        try {
            mHelperTextColor = a.getColorStateList(R.styleable.CustomTextInputLayout_helperTextColor);
            mHelperText = a.getText(R.styleable.CustomTextInputLayout_helperText);
        } finally {
            a.recycle();
        }
    }

    @Override
    public void addView(View child, int index, ViewGroup.LayoutParams params) {
        super.addView(child, index, params);
        if (child instanceof EditText) {
            if (!TextUtils.isEmpty(mHelperText)) {
                setHelperText(mHelperText);
            }
        }
    }

    public int getHelperTextAppearance() {
        return mHelperTextAppearance;
    }

    public void setHelperTextAppearance(int _helperTextAppearanceResId) {
        mHelperTextAppearance = _helperTextAppearanceResId;
    }

    public void setHelperTextColor(ColorStateList _helperTextColor) {
        mHelperTextColor = _helperTextColor;
    }

    public void setHelperTextEnabled(boolean _enabled) {
        if (mHelperTextEnabled == _enabled) return;
        if (_enabled && mErrorEnabled) {
            setErrorEnabled(false);
        }
        if (this.mHelperTextEnabled != _enabled) {
            if (_enabled) {
                this.mHelperView = new TextView(this.getContext());
                this.mHelperView.setTextAppearance(this.getContext(), this.mHelperTextAppearance);
                if (mHelperTextColor != null){
                    this.mHelperView.setTextColor(mHelperTextColor);
                }
                this.mHelperView.setVisibility(INVISIBLE);
                this.addView(this.mHelperView);
                if (this.mHelperView != null) {
                    ViewCompat.setPaddingRelative(
                            this.mHelperView,
                            ViewCompat.getPaddingStart(getEditText()),
                            0, ViewCompat.getPaddingEnd(getEditText()),
                            getEditText().getPaddingBottom());
                }
            } else {
                this.removeView(this.mHelperView);
                this.mHelperView = null;
            }

            this.mHelperTextEnabled = _enabled;
        }
    }

    public void setHelperText(CharSequence _helperText) {
        mHelperText = _helperText;
        if (!this.mHelperTextEnabled) {
            if (TextUtils.isEmpty(mHelperText)) {
                return;
            }
            this.setHelperTextEnabled(true);
        }

        if (!TextUtils.isEmpty(mHelperText)) {
            this.mHelperView.setText(mHelperText);
            this.mHelperView.setVisibility(VISIBLE);
            ViewCompat.setAlpha(this.mHelperView, 0.0F);
            ViewCompat.animate(this.mHelperView)
                    .alpha(1.0F).setDuration(200L)
                    .setInterpolator(FAST_OUT_SLOW_IN_INTERPOLATOR)
                    .setListener(null).start();
        } else if (this.mHelperView.getVisibility() == VISIBLE) {
            ViewCompat.animate(this.mHelperView)
                    .alpha(0.0F).setDuration(200L)
                    .setInterpolator(FAST_OUT_SLOW_IN_INTERPOLATOR)
                    .setListener(new ViewPropertyAnimatorListenerAdapter() {
                public void onAnimationEnd(View view) {
                    mHelperView.setText(null);
                    mHelperView.setVisibility(INVISIBLE);
                }
            }).start();
        }
        this.sendAccessibilityEvent(2048);
    }

    @Override
    public void setErrorEnabled(boolean _enabled) {
        if (mErrorEnabled == _enabled) return;
        mErrorEnabled = _enabled;
        if (_enabled && mHelperTextEnabled) {
            setHelperTextEnabled(false);
        }

        super.setErrorEnabled(_enabled);

        if (!(_enabled || TextUtils.isEmpty(mHelperText))) {
            setHelperText(mHelperText);
        }
    }

}

usage.xml

<com.example.d_rom.supportdesigndemo.widget.CustomTextInputLayout
            android:id="@+id/tilCustom"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:helperText="@string/input_helper_text"
            app:helperTextColor="@color/secondary_text">

        <EditText
            android:id="@+id/etCustom"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="Custom InputTextLayout with Helper Text"/>

        </com.example.d_rom.supportdesigndemo.widget.CustomTextInputLayout>

Please! Can anyone help?

@dimitrileite Please, check that CustomTextInputLayout explicitly wraps EditText in layout like that: https://gist.github.com/drstranges/1a86965f582f610244d6#file-usage-xml

If the problem persists, why not migrate to the new version of TextInputLayout, where the "helper text" has already been implemented.

@dimitrileite Please, check that CustomTextInputLayout explicitly wraps EditText in layout like that: https://gist.github.com/drstranges/1a86965f582f610244d6#file-usage-xml

If the problem persists, why not migrate to the new version of TextInputLayout, where the "helper text" has already been implemented.

You are right my friend! Thank you!