Android-AppBarLayout-TabLayout-RecyclerView-ViewPager-Fragment

标题栏本来是在banner的下方，当滑动下面的RecyclerView的时候标题栏会随着向上移动，但是当标题栏移动到顶部时是要悬浮在顶部，下面无论如何上滑标题拦都不再移动，当向下滑动时知直到出现RecyclerView的第一条时标题栏才会随着向下移动

Name		Name	Last commit message	Last commit date
Latest commit History 2 Commits
.idea		.idea
app		app
gradle/wrapper		gradle/wrapper
.gitignore		.gitignore
README.md		README.md
build.gradle		build.gradle
gradle.properties		gradle.properties
gradlew		gradlew
gradlew.bat		gradlew.bat
settings.gradle		settings.gradle

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