The button is hidden...why?
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="15dp"
android:orientation="vertical">
<ListView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="#+id/feed_list"/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="More"
android:id="#+id/feed_more"/>
</LinearLayout>
Assuming that the ListView has enough content to fill up the whole screen, it will since you told it to wrap_content. You can use weights to instruct the ListView to take up as much of the screen as is available, after the button has what it needs:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="15dp"
android:orientation="vertical">
<ListView
android:layout_width="fill_parent"
android:layout_height="0"
android:weight="1"
android:id="#+id/feed_list"/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:weight="0"
android:text="More"
android:id="#+id/feed_more"/>
you need to give weight 1 to the list view. then your button will be visible. try it.
Related
I am creating an Android app which has a main RelativeLayout and some LinearLayout within it.
Now i have this problem. When dragging items to the editor, e.g. a LinearLayout, it doesn't fit to the full width of the screen. How can I make this possible? This is my XML:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:fillViewport="true"
android:gravity="fill"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<LinearLayout
android:id="#+id/itemDetailLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:orientation="vertical"
android:fillViewport="true" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<ImageView
android:id="#+id/itemImage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:minHeight="40dp"
android:minWidth="40dp"
android:src="#drawable/ic_launcher" />
<TextView
android:id="#+id/itemName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:text="Name"
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="vertical"
android:fillViewport="true" >
<TextView
android:id="#+id/itemRecentHigh"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Recent High" />
<TextView
android:id="#+id/itemRecentLow"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Recent Low" />
<TextView
android:id="#+id/itemAverage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Average" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:id="#+id/listViewLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/itemDetailLayout"
android:layout_marginTop="10dp"
android:fillViewport="true"
android:gravity="fill_horizontal"
android:orientation="vertical" >
<ListView
android:id="#+id/searchListView"
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:fillViewport="true" >
</ListView>
</LinearLayout>
Added a screenshot for more info. Added blue background to have some contrast.
Replace this:
android:layout_width="wrap_content"
android:layout_height="wrap_content"
With
android:layout_width="match_parent"
android:layout_height="wrap_content"
into your LinearLayout or Remove all the Padding from main RelativeLayout
Removing padding makes the linear layout fit the entire screen of the device
The space between the blue part and the "end of the screen". On the sides and above the part where the back button and home button are.
Remove the padding from the root RelativeLayout.
Try
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical>
// Other views within the linear layout
</LinearLayout>
I suppose you are using Eclipse. Personally, I hate the Graphical Editor of Eclipse and I usually write the XML code directly because working with the editor is a real pain
Don't use fill_parent as it is deprecated.
Instead to your RelativeLayout set
android:layout_width="fill_parent"
android:layout_height="fill_parent"
Then, to the list view that you want to fill the rest of the screen, you can set this tags
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1"
By doing so, you are telling the XML that you want your ListView to do what fill_parent used to do in previous versions of Android.
Kind regards!
you should try something like the following :
<LinearLayout
android:id="#+id/itemDetailLayout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
>
...
</LinearLayout>
what i mean you should do this :
android:layout_width="fill_parent"
for every LinearLayout that you want its width to fill_parent .
FILL_PARENT means that the view wants to be as big as its parent as mentioned in the documentation .
and please give me some feedback
Hope That Helps .
My app has two sections, stuff to do for today, and for upcoming days.
I am able to hide/show these by pressing on the corresponding button but when I open both, there can be too much info and I can only scroll the listview for the upcoming days and not the entire screen.
I did some searching and I kept seeing ScrollView pop up but I can't get that to work, it crashes my app.
Here is my XML file
<?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" android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin"
tools:context="eu.agp_it.agpmobilemover.OverviewActivity">
<ScrollView
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:weightSum="1.0"
android:gravity="center"
android:id="#+id/layout_button_today">
<Button
android:id="#+id/overview_button_today"
android:layout_height="wrap_content"
android:layout_weight="0.95"
android:layout_width="0dp"
android:textSize="20sp"
android:text="#string/overview_today"
android:gravity="center"
android:layout_marginTop="5px"
android:layout_marginBottom="5px"
android:background="#drawable/custom_buttonoverview"
android:onClick="buttonTodayOnClick"/>
</LinearLayout>
<LinearLayout
android:id="#+id/layout_listview_today"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#id/layout_button_today">
<ListView
android:id="#+id/listviewtoday"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:dividerHeight="1dp"
android:visibility="visible"/>
</LinearLayout>
<LinearLayout
android:id="#+id/layout_button_upcoming"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:weightSum="1.0"
android:gravity="center"
android:layout_below="#id/layout_listview_today">
<Button
android:id="#+id/overview_button_upcoming"
android:layout_height="wrap_content"
android:layout_weight="0.95"
android:layout_width="0dip"
android:textSize="20sp"
android:text="#string/overview_upcoming"
android:background="#drawable/custom_buttonoverview"
android:gravity="center"
android:layout_marginTop="5px"
android:layout_marginBottom="5px"
android:onClick="buttonUpcomingOnClick"/>
</LinearLayout>
<LinearLayout
android:id="#+id/layout_listview_upcoming"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#id/layout_button_upcoming">
<ListView
android:id="#+id/listviewupcoming"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:dividerHeight="1dp"
android:visibility="gone"/>
</LinearLayout>
</ScrollView>
</RelativeLayout>
You probably don't need the ScrollView at all. The ListViews already do the scrolling for you. Nesting scrolling views isn't recommended.
Try taking out the ScrollView. Each LinearLayout could take up half the screen, or whatever amount you'd like. You could also use an ExpandableListView which would allow you to expand and collapse the assignments for today and upcoming days based on their header (Today, Upcoming). This way you would only need one ListView. So it would be easier to maintain.
I want to make my TextView vertically scrollable. I have read "Making TextView Scrollable in Android" but since I don't know the size of the screen of the final device, I can't know which value should be set for maximum lines.
Is there any other way, so it gets the scrolling for any screen size?
My XML looks like this:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ScrollView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:fillViewport="true"
android:layout_weight="1.0">
<TextView
android:id="#+id/consola"
android:layout_width="fill_parent"
android:layout_height="match_parent"/>
</ScrollView>
<EditText
android:id="#+id/comando"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="0.0"/>
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="0.0">
<Button
android:text="Conectar"
android:id="#+id/boton_conectar"
android:layout_width="wrap_content"
android:layout_weight="0.5"
android:layout_height="wrap_content">
</Button>
<Button
android:text="Enviar"
android:id="#+id/boton_enviar"
android:layout_width="wrap_content"
android:layout_weight="0.5"
android:layout_height="wrap_content">
</Button>
</LinearLayout>
</LinearLayout>
Look, here the structure of my XML layout with scroll:
<?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:scrollbars="vertical"
android:visibility="visible">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
.....
//your sub-widgets
.....
</LinearLayout>
</ScrollView>
As for me, works fine.
If you do not know number of lines (moreover, it could vary if soft input method are shown or not), you should use RelativeLayout to place you widget like TextView. And then connect both (it's critical, not one but both) top and bottom edges of it to parent withandroid:layout_alignParentTop and android:layout_alignParentBottom attibutes, or neighbors with android:layout_above and android:layout_below attributes.
After both sides are connected to other widgets, android will recalculate size of TextView and scroller properly, even if you change orientation or show/hide soft keyboard.
ScrollView is only allowed to have one sub widget.
You should put the linearlayout inside of the scroll view. and set the textview inside of the linear layout.
Put the TextView inside ScrollView with height = MATCH_PARENT
try:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ScrollView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:fillViewport="true"
android:layout_weight="1.0">
<TextView
android:id="#+id/consola"
android:layout_width="fill_parent"
android:layout_height="match_parent"/>
</ScrollView>
<EditText
android:id="#+id/comando"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
/>
<LinearLayout
android:orientation="horizontal"
android:layout_width="wrap_parent"
android:layout_height="wrap_content"
android:layout_weight="1">
<Button
android:text="Conectar"
android:id="#+id/boton_conectar"
android:layout_width="wrap_content"
android:layout_weight="0.5"
android:layout_height="wrap_content">
</Button>
<Button
android:text="Enviar"
android:id="#+id/boton_enviar"
android:layout_width="wrap_content"
android:layout_weight="0.5"
android:layout_height="wrap_content">
</Button>
</LinearLayout>
</LinearLayout>
I have a LinearLayhout that contains a listView and below it an ImageButton.
When I add items to the list, the imageButton is moving lower and lower, which is what I want but when there are many elements in the list so that is the list is big enough to fill the screen, I can scroll down to the bottom of the list, but no further, meaning I can't see the imageButton anymore.
Code:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/add_interest_layout_root"
android:orientation="vertical"
android:layout_width="match_parent"
android:background="#color/back"
android:layout_height="match_parent">
<ListView android:id="#android:id/list"
android:layout_width="match_parent"
android:divider="#drawable/downa"
android:footerDividersEnabled="false"
android:cacheColorHint="#android:color/transparent"
android:layout_gravity="center"
android:layout_marginTop="6dp"
android:layout_height="wrap_content">
</ListView>
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:id="#+id/linearLayout2"
android:gravity="center">
<LinearLayout
android:orientation="vertical"
android:gravity="center_horizontal"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:id="#+id/LinearLayout16">
<ImageButton
android:src="#drawable/add"
android:id="#+id/btn_interest_more"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_gravity="center_horizontal"
android:background="#android:color/transparent"></ImageButton>
<TextView
android:layout_height="wrap_content"
android:textColor="#android:color/white"
android:textAppearance="?android:attr/textAppearanceSmall"
android:layout_width="wrap_content"
android:id="#+id/TextView08"
android:text="be more\nspecific"
android:gravity="center"></TextView>
</LinearLayout>
</LinearLayout>
What am I doing wrong? I want to be able to see the ImageButton even when I scroll down.
You should do something like this. Mind you this is a pseudo code so you better fill the correct attributes.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/add_interest_layout_root"
android:layout_width="match_parent"
android:background="#color/back" android:layout_height="match_parent">
<LinearLayout android:layout_height="wrap_content"
android:layout_width="match_parent" android:id="#+id/linearLayout2"
android:gravity="center" android:layout_alignParentBottom="true">
<!-- LinearLayout elements same as above -->
</LinearLayout>
<ListView android:id="#android:id/list"
android:layout_above="#+id/linearLayout2"
android:layout_width="match_parent"
android:divider="#drawable/downa"
android:footerDividersEnabled="false"
android:cacheColorHint="#android:color/transparent"
android:layout_gravity="center"
android:layout_marginTop="6dp" android:layout_height="match_parent">
</ListView>
</RelativeLayout>
Here is exactly the solution to your problem: http://www.curious-creature.org/2010/08/15/scrollviews-handy-trick/ which is solved by setting fillviewport on your listview.
Add this to your LinearLayout that holds the ImageButton
android:layout_alignParentBottom="true"
UPDATE:
Forget the above code. I misunderstand you. Sorry.
Do this instead: Add this layout as your root layout
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="#+id/scroll"
android:scrollbars="none"
android:layout_weight="1">
<!-- Your code -->
</ScrollView>
Good Afternoon,
I have a list being generated gradually on the users screen, (right now the list is sitting in a scrollview but that might not be the final resting place.) Above the scrollview are a few buttons, and below the scrollview are a few buttons. Scrollview takes up whole middle of the screen.
Right now, as the list is generated, it goes under the buttons below the scrollview. I would like it however to stop at the top. Also looking for it to always display the last line, rather than the new information start disappearing at the bottom.
I know this is probably confusing so if you have any questions please let me know.
Right now the XML looks a little something like this, and its layed out in this order on the screen too.
<Button
android:text="Ok"
android:id="#+id/buttonOk"
android:layout_height="wrap_content"
android:layout_width="75sp"
android:layout_below="#+id/textHoleNumber"
android:layout_alignParentRight="true"></Button>
<ScrollView <-- ***would like this to line up under the OK button***
android:layout_height="wrap_content"
android:id="#+id/scrollView1"
android:layout_width="fill_parent"
android:layout_below="#+id/buttonMinus">
<TextView
android:id="#+id/textScoreCard"
android:layout_height="wrap_content"
android:text="Score card info goes here"
android:textSize="20sp"
android:layout_width="fill_parent"></TextView>
</ScrollView> <-- ***would like this to stay above linear layout***
<LinearLayout
android:layout_width="fill_parent"
android:id="#+id/linearLayout1"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true">
<Button
android:layout_height="wrap_content"
android:layout_width="0dip"
android:layout_weight="1"
android:id="#+id/buttonSave"
android:text="Save"></Button>
<Button
android:id="#+id/buttonReset"
android:layout_height="wrap_content"
android:layout_width="0dip"
android:layout_weight="1"
android:layout_toRightOf="#+id/buttonSave"
android:layout_alignTop="#+id/buttonSave"
android:layout_alignBottom="#+id/buttonSave"
android:text="Reset"></Button>
</LinearLayout>
Always use Scrollview inside linear layout and give android:layout_weight="1". Try following example it will work..
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent" android:background="#null">
<LinearLayout android:id ="#+id/layout_above_scrollview" android:orientation="vertical"
android:layout_width="fill_parent" android:layout_height="fill_parent">
<ScrollView android:id="#id/android:list" android:layout_width="fill_parent"
android:layout_height="wrap_content" android:layout_weight="1">
<LinearLayout android:id ="#+id/layout_above_scrollview" android:orientation="vertical"
android:layout_width="fill_parent" android:layout_height="fill_parent">
// Your components........
</LinearLayout>
</ScrollView>
<LinearLayout android:id="#+id/add_app_done_layout" android:layout_height="wrap_content"
android:layout_width="wrap_content" android:layout_marginTop="5dp"
android:layout_marginLeft="50dp"
android:orientation="horizontal" android:layout_alignParentBottom="true">
<Button android:id="#+id/add_app_done" android:text="Done"
android:layout_width="100dp"
android:textStyle="bold" android:layout_height="wrap_content" />
<Button android:id="#+id/add_app_revert" android:text="Revert"
android:layout_width="100dp" android:layout_marginLeft="5dp"
android:textStyle="bold" android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
If you're talking about what I think you are, try adding a margin to the bottom of the scrollview, and a negative margin to the top of the linear layout. For instance:
<ScrollView android:id="#+id/scrollView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginBottom="60sp">
<LinearLayout android:id="#+id/linearLayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
</LinearLayout>
</ScrollView>
<LinearLayout android:id="#+id/linearLayout2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="-60sp">
</LinearLayout>
As for scrolling to the bottom of the scrollview when a new item is added, look at How to scroll to bottom in a ScrollView on activity startup.
Note: This is assuming you have your ScrollView and the LinearLayout beneath it all contained in a vertical LinearLayout.