Android :: LinearLayout Not Expanding Inside A ScrollView
Apr 8, 2010
I have a LinearLayout inside a ScrollView that has android:layout_height="fill_parent", but it doesn't expand to the full height of the ScrollView. My layout looks something like:
CODE:........
I can see that the LinearLayout doesn't expand the full height of the ScrollView because in Eclipse in Android Layout Editor, if I select the ScrollView (in the Outline panel) it is highlighted with a red border that fills the screen to the bottom but when I select the LinearLayout its highlight doesn't expand to the bottom of the screen. How can I get it to do so?
The effect I'm trying to achieve is to have some text and a button below it (inside the LinearLayout in level 4 there's just a button). The text can be big enough to need a scrollbar, in which case I want the user to have to scroll down in order to see the button. In case the text is not big enough for a scroll bar, I want the LinearLayout containing the button to stick to the bottom of the screen.
At first I thought I shouldn't post the full XML because it's usually a turn-down to see a huge chunk of code in a question. However, it seems it might be necessary, so here's the full layout.
CODE:........
At the moment I have resorted to android:layout_gravity="bottom" on the problematic LinearLayout, which makes the button stick to the bottom of the screen no matter what. But that also makes the text stick to the bottom of the screen, which is not exactly what I was after.
Update: scratch that, android:layout_gravity="bottom" makes the ScrollView unable to, well, scroll.
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Jul 7, 2009
So I've been extremely frustrated by this for a long time now.I've posted before, but can't seem to find a good solution. My goal is to have something pretty much exactly like the installed application details page in the Android Market.I need a list of items displayed along with other content above the list, and would like the content above to scroll up along with the list (exactly like the application details does for the "My Review" and other descriptive info).Due to responses to my previous posts, I came to believe that it really wasn't possible to do this with a ListView.So rather than using a ListView, I refactored my code to use a simple LinearLayout and add individual View items to the list, thinking I could just set each View as clickable and add an OnClickListener to each View in the LinearLayout.That's not working at all though, and now I'm getting even more frustrated.If someone can help me get the OnClickListener working, then I think it'll work, but I do need a separator for the LinearLayout.How do I add a separator like the one used for ListView to my LinearLayout?
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Aug 21, 2010
If I have 2 LinearLayouts split %50/%50 everything is fine. Weights are 1 and 1. As soon as I add a TextView inside the top LinearLayout, it stretches that layout. I use "wrap_content" as the documentation says I should when it comes to weights. As you can see the red and green should be split evenly and text on grey background should be inside red box.
Here is the code:..............
Now if I switch to "fill parent" as follows it actually works but it creates another problem. Here is the code (so far so good):
So looking at above we were forced to use "fill_parent" and we would think like we fixed the problem but here is the problem if we are using "fill_parent" (I took out the textview just to show the problem, textview doesnt make the problem go away anyways):
As you can see I assign the weights 3 (top red) and 2 (bottom green) but what actually happens is they get flipped: The red becomes 2 and bottom becomes 3. Just measure the pixels too see.
Here are the results of the 3 codes: http://imgur.com/iVt8g.jpg
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Oct 30, 2010
I've been a couple of days trying to solve this thing but I can'f figure it out.The problem is, simple activity, with simple layout, ScrollView -> LinearLayout -> and a lot of buttons inside the layout (within the scroll content). Everything works just fine but one tricky thing. When I click a button let's say at the top of the scroll content and inmediatelly I scroll down to the bottom of the content and I click other button there, nothing happens until I click a second time and all come to normal again.This can be reproduced anytime and it's code independent (i've tried more than 20 scenarios). I've not much experience in android yet but looks like the scroll listener stops the onclick listener or something like that.
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Nov 10, 2010
I have a activity on my app, that shows a lot of options that can be configurated (textviews and textedits on a linearlayout)
But I have a problem, there are more items that my windows can show, and I can't go down doing down movement with my finger on the screen.
I am trying to do it with scrollview, but i can't my screens appears black and all mny items dissapear
Here is my layout:
CODE:..................................
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Nov 8, 2010
Im trying to place an image and some text in my view, with the image being twice the height of the text so that the two rows of text can be placed next to the image, like so:
_____
| |text here
|_____|text here
The way i try to do this is to put the two TextViews in a LinearLayout, then place the ImageView and the LinearLayout, containing the text, in a TableLayout with one row and two columns.
When i do this i only se the ImageView. In fact, even when i comment out the adding of the ImageView to the table the text inside the LinearLayout wont show up at all.
CODE:.....................
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Sep 24, 2009
I try to create my custom view inside a linearlayout. For example
<View android:id="@+id/ViewPaint" class="com.example.android.helloactivity.HelloActivity$DrawingView"/>
In the java source I created a DrawingView class which extends View. Unfortunatly it does not get instantiated. I tried to overwrite the ondraw() but without success. Code...
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Oct 19, 2010
I've extended ViewGroup to achieve something like a FlowLayout.I put my custom ViewGroup into a ScrollView, dynamically add a bunch of content and it doesn't scroll.The content that flows off the screen is not viewable.What am I missing, how can I allow my ViewGroup to be compatible with ScrollView?
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Nov 22, 2010
I'm able to successfully use a ScrollView inside the layout xml file for an application. However, when I tried using a ScrollView inside the layout xml file for a widget, I get a "Problem Loading Widget" error as soon as I drop the widget in the emulator. If I comment out the ScrollView, then the widget shows up in the emulator. I've pasted my layout xml file below. Any thoughts on how to get past this error would be much appreciated.
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:paddingBottom="3dip">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingLeft="6dip"
android:paddingRight="6dip"
android:paddingBottom="3dip">
<Button
android:id="@+id/ok_widget"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:text="@string/button_ok" />
</LinearLayout>
<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:fillViewport="true"
android:layout_marginBottom="50dip">
<LinearLayout
android:id="@+id/linear_layout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingBottom="3dip">
</LinearLayout>
</ScrollView>
<RelativeLayout
android:layout_marginTop="-50dip"
android:gravity="bottom"
android:layout_height="wrap_content"
android:layout_width="fill_parent">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingLeft="6dip"
android:paddingRight="6dip"
android:paddingBottom="3dip">
<Button
android:id="@+id/ok_widget"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:text="@string/button_ok" />
</LinearLayout>
</RelativeLayout>
</LinearLayout>
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Apr 22, 2010
When I tried to create a ViewFlipper inside a class which extends LinearLayout, its throwing an exception
"java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()".
I am creating the ViewFlipper using,
ViewFlipper flipper = new ViewFlipper(ctContext);
But when I create the ViewFlipper in a class which extends Activity, its working normally. What may the reason?
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Jul 20, 2012
I am developing an application,I tried implementing a swipe action using viewSwitcher. It was working fine. But when I tried implementing the same code inside a scrollView the swipe action is not working.
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Aug 11, 2010
I want the view group to extend with the ScrollView if the content of the group is smaller than the display area of the ScrollView.
How can I have the ScrollView child extend to fill the parent if it's smaller than the parent?
CODE:.........................
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Jul 16, 2010
I must be overlooking something real simple here, but i think i'm trying to do something fairly basic.. Simply retain the scrollbar position of a ScrollView on orientation change...
Here is the code for my onSaveInstanceState and onRestoreInstanceState.. sView is the container for the ScrollView layout. Within my scrollview is a linearlayout with a lot of textviews.
CODE:............
If I set a Toast with the values of sViewX and sViewY on the Restore, the values are kept and correct.
I just tried to do a sView.scrollTo(0,150); in my onCreate.. just to see if that would open the activity at 150px down, and it didn't. I think my issue has to do with the .scrollTo method.
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Mar 10, 2010
I want some of the goodies in a ListView, like being able to use a ListAdapter, and item selection, etc, but I don't want the ScrollView portion of it. I want to implement that part myself, in a different way (why or how I do this isn't really the point of this question, so please don't ask "why"). Is there a way to have a ListView that's not in a ScrollView or has the scrolling disabled?
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May 25, 2010
I have a RelativeLayout that has two LinearLayouts in it. One is a bunch of TextViews and EditTexts that make up a form and the other is a ButtonBar that submits the form.
anyways, everything looks great in portrait, but when i switch to landscape mode the bottom TextView/EditText element is being hidden by the buttonbar.
screenshot to show the problem. as you can see some of the "email" textview and all of the email edit text are being hidden by button bar.
http://i45.tinypic.com/2dt7qmt.jpg
and xml:
CODE:............................
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Jun 25, 2009
Why is the following code causing an exception? The Code throws a "mBaselineAlignedChildIndex of LinearLayout set to an index that is out of bounds" exception.
CODE:..............
If l2 is dont added to l1 than it works.
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Oct 1, 2010
I am creating an android app, and in the app I would like to have a button that expands the status bar. When I was thinking up the design for the app it seemed like a simple task like that would be, well, simple. But I come to find out that the StatusBarManager is not part of the public API? I can now not add functionality to an app that is clearly available just not in the public api. Is there another abstract way of expanding the status bar?
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Sep 9, 2010
My scenario is like this:
CODE:........
The problem I have is that I can't get my ListView to get the right height that I want. I'll add a couple of components with my custom BaseAdapter class and everything there works as intended. But when i then debug my application i can only see 1,5 out of 3 components in the list and the rest is hidden futher down in the ListView. But how can i make my ListView calculate how many components i have and get it to show all my components direcly without having too scroll down.
Another thought is if i could populate any other kind of View with my BaseAdapter? Because the only reason I'am using ListView is because of the setAdapter() method.
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Dec 17, 2009
On a relatively new emulator image (AVD) I have about 40mb of free space. How can I expand this? I tried setting the disk.cachePartition.size option, but it didn't seem to have any effect.Just to be clear.I'm talking about the "Internal phone storage" size, not the SD Card size.
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Feb 19, 2010
For good usability in an app that I'm developing I would like to expand the status bar to show the user the first time that there is more information to be found on the expanded status bar. (The user will run several apps at the same time, and background services will post notifications. The expanded notifications link back to several the apps/activities that the user is running. )
I've been searching for a while now, but the only thing I could find was: http://developer.android.com/reference/android/Manifest.permission.ht....
I'm looking for a code example on how to expand the status bar.
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Aug 6, 2010
This should be a very simple thing, but it's driving me crazy and currently one of the older bugs of my app. Given an ExpandableListView I want to collapse all the groups but the last one and expand the last one. The code below doesn't work (basically seems to do things at random).
CODE:................
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Jan 28, 2010
I want to display keyboard when my app gets started. I know we can get Virtual Keyboard when clicked on EditText field, but I want to show Virtual Keyboard without clicking on EditText.
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Jul 20, 2010
I can draw overlay items onto google maps just fine, an image that looks like:
_____
| |
______
/
Where the "/" part is the "pin" that marks the lat/lon on the map and a picture in the middle of it. My question is, is there any way to expand this when the user clicks on it? I'll of course have to change this to some kind of dialog or layout and change it when it gets clicked.
I want to have it smaller like that with just an image when not clicked on, but when it is clicked on it expands over like a second to:
--------------------------------------
| <image> <buttons> |
| <buttons> |
| <some info here> |
| |
--------------------------------------
/
Is this possible?
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Nov 5, 2010
I'm developing a small application in with a list view filled with a compound component. This component has two text view and one button inside. One of the text view is invisible and when the button is clicked it should appear. I can show the list but i can't make the textview visible when the button is clicked. Here is the xml of the component: And this is the ArrayAdapter that fills the list:
public class AddressAdapter extends ArrayAdapter { int resource;
RelativeLayout placeView;
EditText addressText;
public AddressAdapter(Context _context, int _resource, List _items) {
super(_context, _resource, _items);
resource = _resource;
} private OnClickListener buttonClick = new OnClickListener() {
public void onClick (View v) {
int i = placeView.findViewById(R.id.stub_import).getVisibility();
visibility(i);
} };
private void visibility(int i) {
// TODO Auto-generated method stub switch(i) {
case(View.GONE): { addressText.setVisibility(View.VISIBLE);
} case(View.VISIBLE): { addressText.setVisibility(View.GONE);
} } }
@Override public View getView(int position, View convertView, ViewGroup parent) {
Item item = getItem(position);
String name = item.getName();
String address = item.getAddress();
if (convertView == null) {
placeView = new RelativeLayout(getContext());
String inflater = Context.LAYOUT_INFLATER_SERVICE;
LayoutInflater vi = (LayoutInflater)getContext().getSystemService(inflater);
vi.inflate(resource, placeView, true);
} else { placeView = (RelativeLayout) convertView;
} TextView nameText = (TextView)placeView.findViewById(R.id.placeNamwView);
Button button = (Button)placeView.findViewById(R.id.Button01);
addressText = (EditText)placeView.findViewById(R.id.placeAddressText);
button.setOnClickListener(buttonClick);
nameText.setText(name);
addressText.setText(address);
return placeView;
} }
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Jun 10, 2009
I'm trying to implement an expandable list view where the group view contains a label and a checkbox, visually represented below (the v and > are the expand/collapse icons, the [x]/[ ] a checked/unchecked.
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Jul 9, 2010
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May 1, 2010
The Hero's native weather widget contains a pretty limited number of cities. On my old WinMo phone, there was a way to expand the database of cities by modifying some Manila files. Is there a similar course of action for Android phones? I perused the files on the Hero (ROM and SD) but didn't see any obvious candidates to change.
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Apr 21, 2010
Looking at greatly expanding my SD storage. It is clear that the Sprint Hero requires an SD device that meets the SD 2.0 specification. That is a given.
The question I have is about SD speed (class) and size (up to 32GB max).
I am wondering if there is noticable speed difference between Class 2 and Class 6 cards on internal or external transfers? Where do we see any difference? Internal - such as photo or file transfers between folders on the card? External - file transfers to and from the SD card set up as a USB device?
Then the possible variable (if it is) of card size? I am still running the stock 2GB card that came with my Hero. I want to go to 16GB. Does "size matter"? ---
Anybody run any experiments to measure speed and function? Photos, files, etc?
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Jul 8, 2013
My parents have recently started using a Samsung Galaxy tablet. I believe it is a tab 1. They have created a gmail account for their email and are getting on fine with the gmail app except that they can't figure out how to access the earlier conversations that are grouped together in a thread. I'm an Apple MacBook user. I have googled 'expand conversations.
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A couple of weeks ago I kept getting a low disc space error message on my Droid (the original). I have already moved everything I can to the SD card with App 2 SD Pro and I haven't loaded any new software to the internal hard drive, but I still had to delete a program to free up space.
Two days ago I started getting the message again, and I haven't installed anything. But I think several system programs have updated and gotten bigger. I've had to take off more programs to free space.
Is this normal, or is there a problem? I've cleared up any caches that I can get to without rooting the phone, but I'm starting to think I need to do that. I never use the Facebook app and it eats a lot of space, but I can't delete it without rooting.
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