徐博俊 徐博俊 - 25 days ago 11
Android Question

CoordinatorLayout with Framelayout is no working

I use

tabLayout
with three tabs in
viewPager
, i want to use CoordinatorLayout to hide and show my toolbar when scrolling. It's no working when i try it.

MainActivity layout: I had add
app:layout_behavior="@string/appbar_scrolling_view_behavior"
in my Framelayout , it's no working.

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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"
tools:context="tw.idv.morton.mydailysugar.MainActivity">

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

<android.support.v7.widget.Toolbar
android:id="@+id/toolBar"
app:contentInsetStart="0dp"
android:layout_width="match_parent"
android:layout_height="35dp"></android.support.v7.widget.Toolbar>

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

<FrameLayout
android:id="@+id/frameLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"></FrameLayout>

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


My tab one layout: I try to change
ScrollView
to
android.support.v4.widget.NestedScrollView
, it's still no working.

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:paddingLeft="@dimen/appPadding"
android:paddingRight="@dimen/appPadding"
android:paddingTop="@dimen/appPadding"
android:background="#ffffff"
tools:context=".MyTabs.MyDailyInput">

<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content">

// here is lots of button and text and layout...

</ScrollView>


</LinearLayout>


Here is my tab layout setting:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
tools:context=".MyTabs.HomeTabs">

<tw.idv.morton.mydailysugar.MyTabs.NoSwipingViewPager
android:id="@+id/viewPagerDataReport"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1" />

<View
android:background="@android:color/darker_gray"
android:layout_width="match_parent"
android:layout_height="1dp"/>

<android.support.design.widget.TabLayout
android:id="@+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="55dp"
android:clickable="true"
style="@style/AppTabLayout"
app:tabTextAppearance="@style/AppTabTextAppearance"
android:background="@color/appColor"
app:tabTextColor="@android:color/white"
app:tabGravity="fill"/>
</LinearLayout>


I had add like
app:layout_behavior="@string/appbar_scrolling_view_behavior"
and
android.support.v4.widget.NestedScrollView
why its still no working ?
Any help would be appreciated . Thanks in advance.

Answer Source

That's because you haven't set the scroll flags in toolbar. Use the following code for your toolbar

<android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            app:layout_scrollFlags="scroll|enterAlways"/>

Further read more about scroll techniques here https://github.com/codepath/android_guides/wiki/Handling-Scrolls-with-CoordinatorLayout