I use new android.support.v4.widget.NestedScrollView
and I faced with issue.
Here is my layout:
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="250dp">
<android.support.design.widget.CollapsingToolbarLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_collapseMode="parallax"
app:layout_collapseParallaxMultiplier="0.7">
<!-- some views inside -->
</RelativeLayout>
<android.support.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
app:layout_collapseMode="pin"
/>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
>
<WebView
android:id="@+id/content"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</android.support.v4.widget.NestedScrollView>
I need to load html inside textView, so I make:
content.setText(Html.fromHtml(htmlString));
And it looks strange. My textview placed at the bottom of screen.
After I swipe on the text it starts to look normal.
And I think textview is not only view with these issue.
I tried use webview, but it even does not show content (I think due to incorrect height computation).
So I need webview or textview to correct work with NestedScrollView
.
P.S. If I set textview height in dp
then text looks correctly, but I need wrap_content
for height.
Finally I need to use WebView
. Alex Facciorusso answer partly works, but I faced with another issue. When WebView
content has some specific height then I can see part of the content, but I can't scroll down.
Example:
Read a lot of posts, and custom implementation of WebView as well, but I was keen about experimenting with attributes and found out what works for me, which is this:
For NestedScrollView
use attribute
android:fillViewport="true"
and for the underlying WebView
make sure you are using height as wrap
<WebView
android:id="@+id/webview"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</WebView>
so as a pseudo code you have
<NestedScrollView> // height= match_parent
<Parent_layout>//could be Realtive/Linear with height= match_parent
<Some_View></Some_View>
<Some_View></Some_View>
<WebView></WebView> // height= wrap_content
</Parent_layout>
</NestedScrollView>
A simple workaround will be to add an empty View with 500dp height below your TextView inside of your LinearLayout. That View shall push up your TextView to the right position.
<android.support.v4.widget.NestedScrollView
app:layout_behavior="@string/appbar_scrolling_view_behavior"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!-- Your scrolling content -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="@string/random_text" />
<View
android:layout_width="match_parent"
android:layout_height="500dp"/>
</LinearLayout>
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