Develop Reference

Cannot make widgets scrollable

I want to create a list of image buttons and i added 3 of them but only two are visible and i want to make them scrollable. I tried using ScrollView but it still doesnt work. I also tried replacing RelativeLayout in the first line with ScrollView but the app started to crash.
Here's the xml file:
<RelativeLayout 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:background="#drawable/back"
tools:context=".home">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/download"
android:layout_gravity="center_horizontal"
/>
</RelativeLayout>
</ScrollView>
<ScrollView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="230dp">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:src="#drawable/geo" />
</RelativeLayout>
</ScrollView>
<ScrollView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="4300dp">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:src="#drawable/images"
android:contentDescription="TODO" />
</RelativeLayout>
</ScrollView>

Make the width and height of first scroll view as wrap content .If it doesn't work then
Make only a single scroll view.Then make a Linear layout as its child and in linear layout having vertical orientation add your 3 image buttons.

Android ListView with CardView: Last Card not fully displayed when scrolling

I have created a ListView to which I've added CardView.
As you can see in the image, when I start scrolling, the last Card in the ListView is not completely displayed. It scrolls up but it does not come above Android's navigation bar at the bottom. I've been testing on a HTC One M8.
Here is the ListView:
<?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="fill_parent"
android:orientation="vertical">
<ListView
android:id="#+id/wanna_list"
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:divider="#null"/>
</LinearLayout>
And here is the CardView that I inflate and set into the adapter of the listview:
<?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="wrap_content" >
<android.support.v7.widget.CardView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="200dp"
android:id="#+id/cv"
android:foreground="?android:attr/selectableItemBackground"
android:clickable="true"
card_view:cardCornerRadius="6dp"
card_view:cardUseCompatPadding="true"
card_view:cardElevation="2dp">
<!-- compat padding is required if using AppCompat -->
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="16dp" >
<ImageView
android:layout_width="100dp"
android:layout_height="100dp"
android:id="#+id/thumbnail"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginRight="16dp"
android:src="#drawable/india"
android:scaleType="centerCrop" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/firstLine"
android:layout_toRightOf="#+id/thumbnail"
android:layout_alignParentTop="false"
android:textSize="20sp"
android:text="Tennis with Peter"
android:layout_alignTop="#+id/thumbnail" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/secondLine"
android:layout_below="#+id/firstLine"
android:text="10 Oct at 7pm"
android:layout_alignLeft="#+id/firstLine" />
<Button
android:layout_width="180dp"
android:layout_height="wrap_content"
android:text="YES"
android:id="#+id/button3"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignLeft="#+id/thumbnail" />
<Button
android:layout_width="60dp"
android:layout_height="wrap_content"
android:text="NO"
android:id="#+id/button4"
android:layout_toRightOf="#+id/button3"
android:layout_alignBottom="#+id/button3"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="false" />
</RelativeLayout>
</android.support.v7.widget.CardView>
</LinearLayout>
I have also tried my card view layout without wrapping it in a LinearLayout and it still does not work.
Is there a setting in the layout xml that will take care of this?
Thanks in advance.

android:layout_marginBotton=" "
add margin bottom should try once.

So adding a margin to the bottom of listView worked, as below:
<ListView
android:id="#+id/wanna_list"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:divider="#null"
android:layout_marginBottom="80dp" />
Am surprised this is the only way to get it to work though. I would have assumed the Android framework took care of these things.

Is the ListView in a Fragment ? As far as I know, this is possible when you have used a Toolbar such as :
<android.support.v7.widget.Toolbar
...
app:layout_scrollFlags="scroll"
...
>
</android.support.v7.widget.Toolbar>
then change the attribute to:
app:layout_scrollFlags="enterAlwaysCollapsed"
Adding margin at the bottom of ListView is sort of a hack. I have given a probable cause for this. If this is the case, then you won't need to add the margin in ListView. There is always a reason behind the UI behavior. I hope this helps.

Show 3 scrollable ListViews of equal height in Android Layout

I am trying to show three different vertical sections in my Android layout on one screen, each taking up one third of the screen, one on the top, one in the middle, and one on the bottom. Each section has a TextView and a ListView, and the ListViews can scroll so that you can see all items, but the overall page does not move. I have tried putting each TextView and ListView in a LinearLayout and setting the height of each LinearLayout to one third the total height of the screen, but the first ListView just shows all the items in it, taking up most of the screen, and the other sections are pushed down. I also tried using layout_weights, but for some reason it did not work. (EDIT: Setting layout_weight="1" ended up working, I'm not sure what I did wrong the first time) How can I make this work, or is there a better way to go about this?

<LinearLayout
android:layout_width="match_parent" android:layout_height="match_parent"
android:orientation="horizontal" >
<ListView android:layout_width="0dp" android:layout_weight="1"
android:layout_height="match_parent" android:background="#FF0000"/>
<ListView android:layout_width="0dp" android:layout_weight="1"
android:layout_height="match_parent" android:background="#00FF00">
<ListView android:layout_width="0dp" android:layout_weight="1"
android:layout_height="match_parent" android:background="#0000FF">
</LinearLayout>
This will give you three equally wide columns: to make it rows, change the orientation to vertical and swap the values of layout_height and layout_width for each listview. If you need to add the TextViews, you'll have to make each listview in this code either a RelativeLayout LinearLayout or FrameLayout, using same width/height/weight and arranging the ListView and TextView inside to taste. To do this most efficiently, use a Framelayout and use a margin on the listview to offset it from the TextView. You can place the TextView relative to the ListView inside the FrameLayout by using the layout_gravity in the TextView.
Ie (swapping the first "column"):
<FrameLayout android:orientation="vertical" android:layout_width="0dp"
android:layout_weight="1" android:layout_height="match_parent"
android:background="#FF0000">
<TextView android:text="Column!" android:background="#3Eff0000"
android:layout_height="40dp" android:layout_width="match_parent">
<ListView android:layout_marginTop="48dp" android:layout_height="match_parent"
android:layout_width="match_parent" android:background="#8Aff0000"/>
</FrameLayout>

Use this:
<?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="horizontal"
android:weightSum="3">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:background="#ff89ff91">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="#1"
android:id="#+id/textView"
android:padding="5dp"
android:gravity="center" />
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/listView"
android:layout_below="#+id/textView" />
</RelativeLayout>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:background="#ffff8177">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="#2"
android:id="#+id/textView2"
android:padding="5dp"
android:gravity="center" />
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/listView2"
android:layout_below="#+id/textView2" />
</RelativeLayout>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:background="#ffffe85d">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="#3"
android:id="#+id/textView3"
android:padding="5dp"
android:gravity="center" />
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/listView3"
android:layout_below="#+id/textView3" />
</RelativeLayout>
</LinearLayout>

Swiperefreshlayout with fragment not scrolling up

I have a layout with some preferences. It works correctly in portrait, but not in landscape. I want this layout to refresh with a swiperefreshlayout, and does work. But as i i say in the title, it doesnt scroll up.
Ive been playing with a normal LinearLayout, with a RelativeLayout, using the swiperefreshlayout as the root view, playing with weights, ... but nothing. It either doesnt scroll up, or doesnt show the preferences correctly (only the 1st title). Dont know what else to try.
I should also say, i want this screen to keep a linearlayout at the bottom, fixed there. So, only the preferences would scroll.
Heres what i have right now:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
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" >
<LinearLayout
android:id="#+id/edittexts"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:elevation="8dp"
android:background="#color/primary"
android:visibility="gone"
android:layout_alignParentBottom="true">
<Button
android:id="#+id/setwallpaperbutton"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:onClick="onActivarClick"
android:text="#string/setwallpaperbuton"
android:visibility="gone"
android:clickable="true"
android:enabled="true"/>
<EditText
android:id="#+id/edittextlocation"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_margin="2dp"
android:textColor="#android:color/white"
android:clickable="false"
android:focusable="false"
android:focusableInTouchMode="false"
android:gravity="center"
android:layout_gravity="center"
android:inputType="textMultiLine"
android:maxLines="2"
android:background="#android:color/transparent"
android:textAppearance="?android:attr/textAppearanceSmall" />
<EditText
android:id="#+id/edittextupdate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_margin="2dp"
android:textColor="#android:color/white"
android:clickable="false"
android:focusable="false"
android:focusableInTouchMode="false"
android:gravity="center"
android:layout_gravity="center"
android:inputType="text"
android:background="#android:color/transparent"
android:textAppearance="?android:attr/textAppearanceSmall" />
</LinearLayout>
<android.support.v4.widget.SwipeRefreshLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/swipelayout"
android:isScrollContainer="true"
android:layout_alignParentTop="true"
android:layout_above="#+id/edittexts">
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fillViewport="true">
<fragment
android:name="es.jnsoft.nowweather.PreferencesFragment"
android:id="#+id/preferencesfragment"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:layout="#xml/settings"/>
</ScrollView>
</android.support.v4.widget.SwipeRefreshLayout>
</RelativeLayout>
Thanks in advance.

According to the documentation,
[SwipeRefreshLayout] should be made the parent of the view that will be
refreshed as a result of the gesture and can only support one direct
child.
This clause is violated in your layout.

ListView and ScrollView together does not work

I have ListView and ScrollView in one activity. Now, the problem is that ListView and ScollView does not work together. I have many controls in activity so I need to use ListView.
If ScrollView is there then ListView's height decreased as you can see in image.
Please help me to prevent this problem.
My Code :
<?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="match_parent"
android:orientation="vertical"
android:padding="20dp" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="20dp" >
<TextView
android:id="#+id/tvRQPoint"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="right"
android:textColor="#color/green"
android:textSize="32sp" />
<TextView
android:id="#+id/tvRQQText"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/questiontext"
android:textColor="#color/blue"
android:textSize="16sp" />
<TextView
android:id="#+id/tvRQQuestion"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textSize="16sp" />
<ImageView
android:id="#+id/imgRQImage"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="3dp"
android:contentDescription="#string/imgdesc" />
<ListView
android:id="#+id/lvRQOptions"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:divider="#b5b5b5"
android:dividerHeight="1dp" />
<TextView
android:id="#+id/tvRQAnswer"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:layout_marginTop="10dp" />
<Button
android:id="#+id/btnRQNext"
android:layout_width="fill_parent"
android:layout_height="35dp"
android:layout_gravity="center"
android:layout_marginTop="10dp"
android:text="#string/next" >
</Button>
<Button
android:id="#+id/btnRQEndTest"
android:layout_width="fill_parent"
android:layout_height="35dp"
android:layout_gravity="center"
android:layout_marginTop="10dp"
android:background="#drawable/blue_bg"
android:text="#string/endtest"
android:textColor="#color/white" >
</Button>
</LinearLayout>
</ScrollView>

Never use a ListView inside a ScrollView. ListView itself already has a built-in scroll so you should use it, as the approach you've used goes against the Android's design.
If you can't remove the ScrollView, you probably should consider simplifying your design or redesign it in another way.

One thing you can do is use only the listView and add the above elements as a header view, and the below elements as a footer view.
List view has properties:
addHeaderView(View view);
addFooterView(View view)
Which you can set before setting the list's adapter

Hi as #nKn said its not good to use ListView inside ScrollView and it also gives bad performance if worked, ListView has its own scrolling property you do not need to use scrollview in it, create seperate layout for listview and other stuff and align layouts the way u want.It worked very well for me.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:overScrollMode="ifContentScrolls"
android:scrollbarStyle="insideOverlay"
android:scrollbars="vertical" >
<RelativeLayout
android:id="#+id/listContainingLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="#+id/buttonsLayout"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:overScrollMode="ifContentScrolls"
android:scrollbarStyle="insideOverlay"
android:scrollbars="vertical" >
<ListView
android:id="#id/android:list"
android:layout_width="wrap_content"
android:layout_height="fill_parent" >
</ListView>
</RelativeLayout>
<LinearLayout
android:id="#+id/buttonsLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:orientation="horizontal" >
<ImageButton
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/button1" />
<ImageButton
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:src="#drawable/button2" />
<ImageButton
android:id="#+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/button3" />
</LinearLayout>
I suggest to align your buttons according to priority if you want your buttons fixed on screen then above format can be used but if u want buttons to come after list then align buttonsLayout belowlistContainingLayout
Hope it helps,Cheers!...

ListView already has scrolling feature. That's why is make problem inside ScrollView. But try give hardcoded width to your ListView. May this solve problem
<ListView
android:id="#+id/lvRQOptions"
android:layout_width="fill_parent"
android:layout_height="300dp"
android:layout_marginTop="8dp"
android:divider="#b5b5b5"
android:dividerHeight="1dp" />