android - 将 AppCompat 'layout_behavior' 与 '@string/appbar_scrolling_view_behavior' 一起使用会引发异常

Question

我有一个奇怪的问题，使用 AppCompat Lib 22.2 并引入了新的:layout_behavior

如果我将其与值 "@string/appbar_scrolling_view_behavior"一起使用，如此处所述 Android Design Support Lib应用程序终止，但出现以下异常:

Could not inflate Behavior subclass android.support.design.widget.Settings
     Caused by: java.lang.RuntimeException: Could not inflate Behavior subclass android.support.design.widget.Settings
     Caused by: java.lang.ClassNotFoundException: android.support.design.widget.Settings
     Caused by: java.lang.NoClassDefFoundError: android/support/design/widget/Settings
     Caused by: java.lang.ClassNotFoundException: android.support.design.widget.Settings

如果我改为:

app:layout_behavior="android.support.design.widget.AppBarLayout$ScrollingViewBehavior"

一切正常。

我错过了什么？

Answer 1

对于遇到此异常并使用 proguard 的其他人 - 您需要添加以下 proguard 规则:

-keep class android.support.design.widget.** { *; }
-keep interface android.support.design.widget.** { *; }
-dontwarn android.support.design.**

或者如果您不想保留所有可以使用的设计库组件:

-keepattributes *Annotation*
-keep public class * extends android.support.design.widget.CoordinatorLayout.Behavior { *; }
-keep public class * extends android.support.design.widget.ViewOffsetBehavior { *; }