TextInputLayout-如果EditText不为空且未聚焦，则更改浮动标签提示颜色

Question

如果editText不为空且未聚焦，如何更改提示颜色？

这是我当前的代码：

<android.support.design.widget.TextInputLayout
    android:id="@+id/email"
    style="@style/AuthInput"
    android:layout_marginTop="32dp"
    android:hint="@string/hint_email"
    android:inputType="textEmailAddress"
    android:theme="@style/AuthInput"
    app:hintTextAppearance="@style/TextAppearance.App.TextInputLayout">

    <EditText
        android:id="@+id/edit_email"
        style="@style/AuthEditText"
        android:inputType="textEmailAddress" />
</android.support.design.widget.TextInputLayout>

和样式：

<style name="AuthInput">
    <item name="android:layout_width">match_parent</item>
    <item name="android:layout_height">wrap_content</item>
    <item name="android:textColorHint">@color/black</item>
    <item name="android:paddingLeft">0dp</item>
</style>

<style name="TextAppearance.App.TextInputLayout" parent="@android:style/TextAppearance">
    <item name="android:textColor">@color/inputHintActive</item>
</style>

Answer 1

更改您的< code>TextInputLayout样式

您的< code>TextInputLayout

<android.support.design.widget.TextInputLayout
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:theme="@style/TextLabel">

    <android.support.v7.widget.AppCompatEditText
        android:id="@+id/edit_id"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:hint="hintText"/>

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

您的文本输入布局样式会根据您的测试更改颜色

<style name="TextLabel" parent="TextAppearance.AppCompat">
    <!-- Hint color and label color in FALSE state -->
    <item name="android:textColorHint">@color/colorBlack</item>

    <!-- Label color in TRUE state and bar color FALSE and TRUE State -->
    <item name="colorAccent">@color/colorPrimary</item>
    <item name="colorControlNormal">@color/colorPrimaryDark</item>
    <item name="colorControlActivated">@color/colorGray</item>
</style>

Answer 2

您可以通过以下方式更改提示颜色

editText.setHintTextColor(getResources().getColor(R.color.white));

如果您想清除编辑文本的焦点，请使用

editText.clearFocus();

Answer 3

试试下面的代码：

<style name="TextAppearence.App.TextInputLayout" parent="@android:style/TextAppearance">
    <item name="android:textColor">@color/black</item>
    <item name="colorControlNormal">@color/transparant</item>
    <item name="colorControlHighlight">@color/black</item>
    <item name="colorControlActivated">@color/transparant</item>
    <item name="android:textColorHint">@color/black</item> // set grey color for hint
</style>