Develop Reference

Android Widget lost from view if the list is to long

I have the following layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ListView
android:id="#android:id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:clickable="true"
android:longClickable="true"/>
<TextView
android:id="#+id/notes"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:visibility="gone"/>
</LinearLayout>
The TextView is populated programmatically and is shown at the bottom of the list as I require however when the list starts to fill the screen the TextView is list behind the list and can no longer be seen. How can I stop the List view expanding into the space occupied by the text view?
I was thinking about changing it to a ScrollView but is was my understanding that you shouldn't use a ListView inside a ScrollView.

Use a RelativeLayout Instead Of LinearLayout
and add this to your ListView
<ListView
...
android:layout_above="#+id/notes"
/>
if you want the textView To be at the bottom of your view add this too:
android:layout_alignParentBottom="true"

can i create a nestedScroll Layout like this?

I think it can be achieved by NestedScrollingChild NestedScrollingParent.
But I can't really understand them.Who can help me out!
Product manager insists on the design.
The ScrollView contains a LinearLayout ,a "TabLayout" and a ViewPager.
The ViewPager contains 2 fragment contains RecyclerView or just only 2 RecyclerView.
When the ScrollView scroll to Bottom , the RecyclerView can scroll to Bottom.
When the RecyclerView scroll to Top , the ScrollView can scroll to Top.
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<TextView
android:layout_width="match_parent"
android:layout_height="1000dp" />
<TableLayout
android:layout_width="match_parent"
android:layout_height="60dp"></TableLayout>
<android.support.v4.view.ViewPager
android:layout_width="match_parent"
android:layout_height="match_parent"></android.support.v4.view.ViewPager>
</LinearLayout>
</ScrollView>

Just change your ScrollView to android.support.v4.widget.NestedScrollView
Post your xml if that doesn't work

ِYou can do that, but it's not good at all to use this type of layout
First you need add "wrap_content" abilty ViewPager and RecyclerView's
ViewPager and RecyclerView
Now you can use scrollview easily, put all item in it
If you want some effect or something when user scrolling or some item get visible in scrolling you can get position of item then make listener on
"OnScrollChangedListener" of scrollview

LinearLayout does not return onFling?

I expect to display one picture each time and horizontally swipe to another picture through onFling(). The problem is I have to use ScrollView to wrap my ImageView so as to get response from onFling. If I use Linearlayout to wrap the ImageView, nothing happens when I swipe. I don't want to use scrollview because the picture can be scrolled vertically though it is the exact screen size. How can I achieve it? Below is my layout.xml
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:scrollbars="none">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical" >
<ImageView
android:id="#+id/iv_tutorial"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</LinearLayout>
</ScrollView>

I fixed it by adding an attribute android:longClickable="true" to the LinearLayout.

Android: How do I add a footer to a fullscreen scrollview?

I want the footer to be anchored at the bottom of the screen if and only if it can be anchored there without overlapping any other views.
The problem is that I don't know how many views are going to be added to the header or the footer.
If putting the footer at the bottom of the window would make it overlap, I want to put the footer at the bottom of the scrollview. (Maybe by adding it to the RelativeLayout with the rule that it needs to be below the top component?)
Here is a pic of what I'm trying to get:
desired result
Where:
1)The RelativeLayout contains both the TableLayout at the top, and the LinearLayout at the bottom.
2)The TableLayout expands downwards as TableRows get added to it.
3)The LinearLayout expands up from the bottom as views get added to it.
~~~
I'd like for the scrollview to grow in size only enough to fit the components without overlapping.
Thanks in advance for such awesome community support

I think you can solve it in linear layout. You set three blocks in linear layout: header, body, footer. Set body to fill_parent and layout_weight=1, this way body will expand to fill what left after header and footer taken its part from parent. Whole structure place into ScrollView.
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:fillViewport="true">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TableLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TableRow><TextView android:text="Text1"/></TableRow>
<TableRow><TextView android:text="Text2"/></TableRow>
</TableLayout>
<RelativeLayout
android:layout_weight="1"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:text="#string/lorem_ipsum"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</RelativeLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TextView
android:text="Text3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<TextView
android:text="Text4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</LinearLayout>
</LinearLayout>
</ScrollView>
I tested this in Emulator of Android 2.1 and it looks it works.

ScrollView don't scroll?

I've a ScrollView / RelativeLayout / FrameLayout and I inside put programmaticaly some widgets.
Here is the gui xml :
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:fillViewport="true"
android:background="#drawable/fond_app">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<TextView
android:id="#+id/titreAppli"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="My Big Application"
android:textStyle="bold"
android:textColor="#9b9b71"
android:textSize="15dp"
/>
<FrameLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="#+id/out"
android:layout_below="#id/titreAppli"
/>
</RelativeLayout>
</ScrollView>
In the FrameLayout, I put programaticaly another RelativeLayout, and other widgets inside.
With some widgets (text, image, buttons), I can't scroll. With other (a linearlist with text), I can scroll.
Why ? Is there a solution ?
Thanks.

First remove frame layout. You should use some other layout like relative instead of framelayout. Becasue Framelayout is not expanding and there fore scroll view is not working. If you use linear or relative then they will expand and you will be able to scroll.

Have you tried without the android:fillViewport="true" ?