I want to make a news ticker using a HorizontalScrollView. As a first step, I am simply trying out the HorizontalScrollView which contains only a Button as the content. I want the Button to fill the entire screen and the Button's text to be centered. But so far, the Button is stuck on the left side. Here is the code:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<HorizontalScrollView
android:layout_width="fill_parent"
android:layout_height="40dip"
android:layout_marginTop="50dip"
android:background="#000000"
android:scrollbars="none" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center_vertical"
android:orientation="horizontal" >
<Button
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="Button 1"
android:textSize="20sp" />
</LinearLayout>
</HorizontalScrollView>
How to solve this problem?
How to solve this problem?
Try to use the fillViewport attribute on the HorizontalScrollView:
android:fillViewport="true"
I am displaying a TextView and below that a ListView in one page. My code is:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:id="#+id/widget"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<RelativeLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:id="#+id/widgetlay"
android:layout_height="fill_parent">
<TextView
android:id="#+id/txt1"
android:text=""
android:layout_height="wrap_content"
android:layout_width="fill_parent"
>
</TextView>
</RelativeLayout>
<ListView
android:layout_width="match_parent"
android:id="#+id/listlist"
android:layout_height="0dp"
android:layout_weight="1.0">
</ListView>
</RelativeLayout>
Here I am displaying the ListView data dynamically....but in my emulator it is displaying a TextView at the top and then the ListView with scroll...It is not expanding the list and instead it is scrolling with the content which is generated dynamically...Please tell me how to expand the entire ListView....
Thanks in advance
<?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">
<LinearLayout android:gravity="center|center_vertical"
android:orientation="vertical" android:layout_height="fill_parent" android:layout_width="fill_parent">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="status"
android:id="#+id/txtvw1">
</TextView>
<ListView
android:layout_width="fill_parent"
android:id="#+id/listlist"
android:layout_height="fill_parent">
</ListView>
</LinearLayout>
</LinearLayout>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:id="#+id/txtvw1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="status" >
</TextView>
<ListView
android:id="#+id/listlist"
android:layout_width="fill_parent"
android:layout_height="fill_parent" android:layout_weight="1">
</ListView>
</LinearLayout>
You have an error here
<ListView
android:layout_width="fill_parent"
android:id="#+id/listlist" //error here
android:layout_height="fill_parent">
</ListView>
the ListView is filled of the LinearLayout
so that you can't get the TextView.
instand of this
you can layout your view as follows:
<ListView
android:layout_width="match_parent"
android:id="#+id/listlist" //error here
android:layout_height="0"
android:layout_weight="1.0>
android:layout_weight="1.0" //this will make the list view filled with the rest of the screem
Further more
I suggest you use "match_parent" instand of "fill_parent"
this WAS CHANGED in the SDK level 8...
OK, now you use the RelativeLayout install of the LinearLayout
So you should add the relationship with your views in your layout.
You can layout as this:
<RelativeLayout
android:id="#+id/widgetlay"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TextView
android:id="#+id/txt1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="" >
</TextView>
<ListView
android:id="#+id/listlist"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/txt1" />
android:layout_below="#id/txt"----Indicate the relationship with the layout
The RelativeLayout does not have the attr "orientation" and "layout_weight". So I don't suggest you to use this layout, It can't be fixed with the screen height in that way.
The good layout is:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="#+id/txtvw1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="status" >
</TextView>
<ListView
android:id="#+id/listlist"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1.0" />
Further more, what do you want to layout your views?
This is a part of my work. List view will appear in the middle of your screen and what ever u need at the top, put it in place of header() and things that u need in bottom of the screen , put it in place of footer(). U can use relative layout instead of the linear layout
Hope this helps.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<RelativeLayout android:layout_width="match_parent" android:layout_alignParentTop="true"
android:layout_height="wrap_content" android:id="#+id/layout_header">
<include layout="#layout/header"/>
</RelativeLayout>
<LinearLayout android:layout_width="match_parent" android:gravity="center" android:orientation="horizontal" android:weightSum="1"
android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:id="#+id/layout_footer">
<include layout="#layout/footer" />
</LinearLayout>
<ListView android:id="#android:id/list" android:layout_below="#id/layout_header" android:layout_above="#id/layout_footer"
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:visibility="visible" />
<!-- <TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/hello"
/> -->
</RelativeLayout>
I don't know what is meaning of expanding meaning here, but listView in scroll view dont behave normally. To resolve this issue you need to implement list view outside of scrollview.
I don't quite understand what you mean, but if you want to have the textView scroll with the content of the listView, you need to add it as a header in your listView.
Moreover, it is not a good idea to put a listview in a scrollview, the listview being scrollable, it messes with the scrollview mechanism.
You can NEVER ever place a listview in the SCrollView.It wont behave properly.Instead of it try using LinearLayout TextView ListView < /Linearlayout>
I have this layout file in my android application:
<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#android:id/tabhost"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1">
<TextView
android:id="#+id/textview1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="this is a tab" />
<TextView
android:id="#+id/textview2"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="this is another tab" />
<LinearLayout
android:id="#+id/layoutSearch"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<TextView
android:id="#+id/textview4"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="Search here" />
<EditText
android:id="#+id/editSearch"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
</FrameLayout>
<TabWidget
android:id="#android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="0"/>
</LinearLayout>
</TabHost>
My problem is that LinearLayout android:id="#+id/layoutSearch" shows only one of the elements it contains (the text view, in the code above) If I remove the textview, it shows the EditText.
How do I make it display both (and more) elements?
There's a lot of excess layout there, but it looks like the real issue is that layoutSearch is a vertical LinearLayout with two children, but the first child's height is set to fill_parent, so you naturally never see the second one. Try setting its height to 0px but giving it a layout_weight of 1, and it should expand to take all the available space not taken by the EditText below it.
What would you use? Menu? Context menu? Would you rather add the sort order for that particular ListView as an option in your application's Settings?
I've set up buttons indicating sort orders at the top of the layout each of which corresponded to an OnClickListener that fetched a new cursor and then simply called a
adapter.changeCursor(newCursor);
on the listview adapter.
Hope that helps.
After analyzing the different options, I went with a spinner at the top of the screen. Here is what layout is right now:
<?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">
<LinearLayout android:orientation="horizontal"
android:layout_width="fill_parent" android:layout_height="wrap_content">
<Spinner android:layout_width="fill_parent"
android:layout_height="40sp" android:id="#+id/spinner_sort_order ">
</Spinner>
</LinearLayout>
<FrameLayout android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ListView android:id="#android:id/list" android:layout_width="fill_parent"
android:layout_height="fill_parent" android:drawSelectorOnTop="true" />
<!-- Here is the view to show if the list is empty -->
<TextView android:text="#string/empty_list_default_value"
android:id="#+id/txt_empty_list" android:layout_width="fill_parent"
android:layout_height="fill_parent" android:textSize="16sp"
android:textStyle="bold" android:gravity="center">
</TextView>
</FrameLayout>
</LinearLayout>
I have a layout that is three linear layouts. The top has some icons and the middle has a tabhost. Each tabhost has a list inside it. The bottom linearlayout has two buttons that should stay at the bottom on the screen at all times. The problem is when a list in the tabhost gets too long, it displays over the buttons. I tried to find some way to get the buttons to bedisplayed over the list but have failed so far. Any help would be appreciated. :-) Thanks!
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TabHost
android:id="#android:id/tabhost"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="395dp"
android:background="#000000">
<TabWidget
android:id="#android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:padding="5dp"
/>
</LinearLayout>
</TabHost>
</LinearLayout>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="fill"
android:layout_margin="0dp"
android:padding="0dp"
>
<Button
android:id="#+id/btnGroup"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Ptt"
android:layout_gravity="bottom"
android:layout_weight="2"
android:hapticFeedbackEnabled="true"/>
<Button
android:id="#+id/btnMenu"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Menu"
android:layout_gravity="bottom"
android:layout_weight="2"
android:hapticFeedbackEnabled="true"/>
</LinearLayout>
I generally put my LinearLayouts inside of a ScrollView to solve this situation. (The buttons stay outside) It allows your buttons to stay in the correct location at all times and the user scroll the rest of the view.
ScrollView Docs