从支持设计库使用新的TextInputLayout时出现RuntimeException

Question

我有一个非常简单的布局,我使用Design Support Library中的新android.support.design.widget.TextInputLayout视图

<android.support.design.widget.TextInputLayout
    android:id="@+id/til"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content">
    <EditText
        android:id="@+id/textDialog"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:hint="First Name"/>
</android.support.design.widget.TextInputLayout>

在膨胀时,我得到例外:

Caused by: java.lang.RuntimeException: Failed to resolve attribute at index 18
            at android.content.res.TypedArray.getColor(TypedArray.java:401)
            at android.support.design.widget.CollapsingTextHelper.setCollapsedTextAppearance(CollapsingTextHelper.java:166)
            at android.support.design.widget.TextInputLayout.<init>(TextInputLayout.java:106)
            at java.lang.reflect.Constructor.newInstance(Native Method)
            at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
            at android.view.LayoutInflater.createView(LayoutInflater.java:607)
            at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
            at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:381)
            at android.app.Activity.setContentView(Activity.java:2144)
            at com.example.trybindinglib.MainActivity.onCreate(MainActivity.java:24)
            at android.app.Activity.performCreate(Activity.java:5933)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2298)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2407)
            at android.app.ActivityThread.access$800(ActivityThread.java:149)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1324)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:211)
            at android.app.ActivityThread.main(ActivityThread.java:5321)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1016)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:811)

Answer 1

您是否添加了设计支持库？添加依赖项:

compile 'com.android.support:design:22.2.0'

到你的build.gradle

Answer 2

如果您Theme.AppCompat用作基本应用程序主题,请textColorError在其中定义.TextInputLayout需要它在它的错误状态中使用它.否则将如上所述显示崩溃日志.

例:

<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <!-- Customize your theme here. -->
        <item name="textColorError"> @color/design_textinput_error_color_light </item>
</style>

这是@color/design_textinput_error_color_light为了AppCompat.Light和@color/design_textinput_error_color_dark为AppCompat.Dark.

Answer 3

确保app主题扩展AppCompat主题.

    <!-- Base application theme. -->
    <style name="AppTheme" parent="@style/Theme.AppCompat">
        <!-- Customize your theme here. -->
    </style>