处于错误状态的TextInputLayout提示颜色

Question

根据Googles材料指南：

https://material.io/guidelines/components/text-fields.html#text-fields-layout

TextInputLayout提示应该与错误消息的颜色相同：

我如何更改此行为以适应Google自己的指导方针？

Answer 1

以下是如何做到这一点：

 <android.support.design.widget.TextInputLayout
        android:padding="8dp"
        android:id="@+id/tilSample"
        app:errorTextAppearance="@style/error_appearance"
        app:hintTextAppearance="@style/error_appearance"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <EditText
            android:id="@+id/etSample"
            android:layout_margin="8dp"
            android:padding="8dp"
            android:hint="android"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

    </android.support.design.widget.TextInputLayout>

style.xml

<style name="error_appearance" parent="@android:style/TextAppearance">
        <item name="android:textColor">@color/colorRed</item>
        <item name="android:textSize">12sp</item>
    </style>

colors.xml

   <?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="colorPrimary">#3F51B5</color>
    <color name="colorPrimaryDark">#303F9F</color>
    <color name="colorAccent">#FF4081</color>
    <color name="colorRed">#f44336</color>
</resources>

tilSample.setErrorTextAppearance(R.style.error_appearance);  
tilSample.setHintTextAppearance(R.style.error_appearance);