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.
View 2 Replies
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:................
The default behavior of ExpandableListView is to collapse a group when its header is clicked. Is it possible to prevent this from happening?
I've tried: Setting OnTouchListener on the list. This interferes with scrolling. Setting an OnGroupClickListener on the list (in onCreate()). This works for all clicks after the first.
Why might the OnGroupClickListener miss the first click?
I'm trying to put a checkbox into ExpandableListView. I noticed that doing that disables basic functionality of displaying child list when group row is clicked. Furthermore when I click outside of checkbox the click is detected by nether checkbox nor by OnGroupClickListener. Can someone help me to resolve this? The CheckBox works fine though including detecting clicks when clicking directly on the box.
View 2 Replies View Relatedi've got an ExpandableListView with my own layouts for the group and child views. a certain group-type will require a different layout. is that possible - i.e. a ELV with different layouts for a group view. i've got my own sub-class of SimpleExpandableListAdapter.
View 6 Replies View RelatedI have an ExpandableListView (ELV) with the groups having LinearLayout. I have set the height of the group to some value (38dip in this case, equivalent to two lines of text). If the group heading is long and would take more than 2 lines, it is not shown properly in the ELV item - some part of the view gets scrolled. On the other hand, if I change android:layout_height to "wrap_content" in the LinearLayout, the groups always show all the lines. But the line widths are variable, i.e., short titles show up with only 1 line and long titles show up with 2, 3 or 4 lines. That looks ugly. I would like to implement the height to be something like max("38dip", "wrap_content"). Is there a way to do this?
Even programmatically, I do not seem to be getting the actual height of the group if I set android:layout_height to "wrap_content". Any suggestions there?
I have a ViewGroup and it has a few children. And one of them is a TextView ("+id/text"). In my code, I would like to know how can I add a new View or ViewGroup which will be positioned vertically aligned and below the TextView (+"id/text")?I have followed the advice below and try to use TableLayout. As a test, I try to layout statically to make sure things are aligned correctly. Here is my layout xml:
<?xml version="1.0" encoding="utf-8"?>
<TableLayout android:id="@+id/panel" xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:minHeight="?android:attr/listPreferredItemHeight">
<TableRow
android:layout_width="fill_parent"
android:layout_height="wrap_content">..........
I am new so I may not explain the situation well. Please let me know if you need more info.
I am trying to implement a listview like this:
[textview][button][checkbox]
[textview][button][checkbox]
[textview][button][checkbox]
[textview][button][checkbox]
I want other checkbox unchecked automatically when I click one of them. So it is like a single choice. I write following codes which can implement multiple choice but when I try to switch it to single choice I got trouble.
in checkBoxOnClickListener I cannot find other (checkbox)view and toggle them. Any suggestion pals? Let me know if you think my express skills poor. code...
In my android app, I have a preferenceScreen with some checkboxes defined in a xml file and a class that implements "SharedPreferences.OnSharedPreferenceChangeListener". What I want to do is to select a checkbox and all the others to be selected as well. In the above listener I am able to modify the other checkboxes's state to selected, but my view remains unchanged. What should/could I do to achieve this ?
View 1 Replies View RelatedI need to implement a list view with checkbox and each item should be associated with images.
View 1 Replies View RelatedCurrently I have a list view within it each row has a checkbox attached. I would like that once any checkbox is checked, at the bottom of the screen a view displays, and once none of the checkboxes are checked, the view automatically disappeared. Possible to do this?
View 2 Replies View RelatedI'm sure this is an obvious one but I'm at a loss. I'm using my own layout for list rows, all well and fine. but the moment I add a checkbox view to the rows layout only the checkbox responds to user selection. I'd like for the checkbox to change state if the user taps anywhere within a given row. (as with android prefs)
View 2 Replies View Relatedi have problem to get event of list view field when i am adding checkbox in listview. my problem is to get the status of check box form every row of the list view, either it is check or not, according to that i have to do operation.
View 3 Replies View RelatedIs there a standard way to add a footer to a context menu, in which I can add a checkbox to make the selected option the default one?
Similar to the context menu that comes up when choosing the default home screen for example.
From the Api docs for ContextMenu I see that you can set a header view, but not a footer view. Also the setCheckable / setGroupCheckable methods don't seem to help much here.
Does this need to be done via a custom (alert) dialog? I would be wondering if nobody has yet developed such a component yet in case it's not possible through the standard SDK api. Any standalone open source component out there (beside the Android source itself)?
Just use findViewById(R.id.layout_2)
View 5 Replies View Related<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:id="@+id/llAddNote"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginRight="8dip"
android:background="#CCFFCC">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="24dip"
android:text="Add Notes"/>
<TableLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="24dip"
android:layout_marginRight="24dip"
android:id="@+id/tlNotes"
android:stretchColumns="0">
</TableLayout>
<Button
android:id="@+id/bAddNoteLine"
android:layout_marginLeft="24dip"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="ADD">
</Button>
<LinearLayout
android:id="@+id/llIndex"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_margin="21dip"
android:gravity="center">
<Button
android:id="@+id/bSaveSubjectiveNote"
android:layout_width="192dip"
android:layout_height="wrap_content"
android:text="Save"/>
<Button
android:id="@+id/bDiscardSubjectiveNote"
android:layout_width="192dip"
android:layout_height="wrap_content"
android:layout_marginLeft="48dip"
android:background="@drawable/button"
android:text="Discard"/></LinearLayout>
</LinearLayout>
How to retrieve the index of linearLayout which has "llIndex" as id.
I'm looking for a simple method to search a ViewGroup for a specific view given the id. This ViewGroup could have nested ViewGroups as well, so it needs to be recursive. Anyone know if Android as some type of view iterator? I can't seem to find anything.
View 4 Replies View RelatedI'm looking for a way to iterate a viewgroup to retrieve all child views without calling findViewById(). Does view count and view position line up? So can I get the view count and then use that as a counter to call getChildAt(int index)?
View 2 Replies View RelatedI've got a schedule Class, which is simply a custom ViewGroup (with custom onMeasure() and onLayout()), which enables me to place childs(=events) with LayoutParams for column/row start and column/row end. The number of childs and their LayoutParams depend on database entries.
Now I'm trying to add childs (events) from my database. I'd have to use a Cursor Adapter, so my schedule Class has to extend ListView, right? I tried that but the newView() method of the adapter is never called. Why not? My custom ListView doesn't ask the adapter for childs, no childs are added. I also can't add the childs by hand calling schedule.addView() if I extend from AdapterView.
How can I add events to the schedule with the data from the cursor?
I worked as android developer, any sample code for carousel view for group of immages which should display the image and its name in the text view?
View 1 Replies View RelatedI 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:.........................
I've searched around for solutions to this problem, and the only answer I can find seems to be "don't put a ListView into a ScrollView". I have yet to see any real explanation for why though. The only reason I can seem to find is that Google doesn't think you should want to do that. Well I do, so I did.
So the question is: How can you place a ListView into a ScrollView without it collapsing to its minimum height?
I have TextViews in a View that are dynamically populated. But even when there's no text in them they still seem to take up space, specifically height, even though the TextView and the parent have layout_height set to wrap_content. Coming from HTML land, I would expect them to collapse. Even if I set them to invisible, they still take up room. I've tried a LinearLayout and a RelativeLayout. How exactly do you get them to go away without removing them altogether?
View 3 Replies View RelatedI have a layout xml file with a linear layout. One of the children is again a ViewGroup Relative layout. In my java code i want to change the width of this child Viewgroup for my requirements. I tried this
ViewGroup childViewGroup = (LinearLayout)findViewById(childViewGroup);
LayoutParams l = childViewGroup.getLayoutParams();
l.width = 360;
childViewGroup .setLayoutParams(l);
I couldn't do this because findViewById(childViewGroup) doesn't fetch ViewGroups it does only for Views. Note: I cant define a whole new layout.xml for this minor requirement since it is huge layout file and might cause performance overhead. I wanted to just change the width of the child view group in my java activity code.
why CheckBox is always null.
<CheckBox id="@+id/checkbox" android:layout_width="wrap_content" android:layout_height="wrap_content" />
code file-
package com.reblogr.reblogrclient;
public class Test extends Activity { /** Called when the activity is first created. */
public CheckBox checkbox;
@Override public void onCreate(Bundle savedInstanceState) { ....................
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?
View 2 Replies View RelatedMy 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.
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.
View 3 Replies View RelatedI 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.
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.