no resource id found for app:layout_scrollflags from CollapsingToolbarLayout

Question

The title of this question basically says it all. I get the error: no resource identifier found for app:layout_scrollflags from CollapsingToolbarLayout. I use eclipse and imported the design library jar file. I'm able to use the design support layouts in my classes so that's correct

this is a piece of the code i use:

<LinearLayout 
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="@color/activityBg"
tools:context=".MainActivity"
>

<android.support.design.widget.AppBarLayout
    android:layout_height="wrap_content"
    android:layout_width="match_parent">

    <android.support.design.widget.CollapsingToolbarLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:layout_scrollFlags="scroll|exitUntilCollapsed">

        <include
            layout="@layout/toolbar"/>

    </android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>

examples: http://android-developers.blogspot.in/2015/05/android-design-support-library.html

Answer 1

only importing the design library jar file is not enough. You need to import resource of android-design-library project while the jar file only contains class files.

Do as I say:

1. import android-design-library project. The project is at "sdk/extras/android/support/design/". And set it as a library project if it is not.
2. import the above project into your main project as a library.

You have to do this, because xmlns:app="http://schemas.android.com/apk/res-auto" means your need local resources from your library project or the current project, in this case, it means you need resources from the library project of android-design-library.