I could not figure out how to implement two basic functionalities with the expandable lists: 1. The onClick for the child 2. Using linear layout for the children, so that I can have multiple clickable items in same row under the parent item
Can somebody help me with some sample code for the above?
View 1 Replies
I am using a simple expandable list that is populated by two arrays ( group array for the groups and a multi dimensional children array for the child). The arrays are built dynamically in the program and some group items have more children than others. So I end up defining the highest number as the array size for the multidimensional child array. After populating the child array, some positions are left null, as there are no values for those group items (explained above). When I associate this with the expandable list adapter, the getChildView method throws a nullpointer exception when it comes across a position in child array that does noto have value. I have two questions:
1. Can I make the base adapter skip the shildview method if the value in that child is null? The current implementation of getchildView method has to return a view and even if I suppress the nullpointer exception, it adds a blank element in the child position in the list.
2. Is there a better way of associated multidimensional arrays that are populated at run time? The current set of examples only use hardcoded string array values. Even the cursor adapters examples use very basic setup.
I am displaying items according to different categories using Expandable Listview.Now I want to display only items ,No need of parent name or parent indicator.is there any solution from expandable list view to display only child items .I don't have time Thats y i am displaying items from expandable list view(I am already developed this one) .So please give me some suggestions.It is very urgent.
View 1 Replies View RelatedI want to have more than one expandable list within a layout. It appears that an expandable list in a custom layout must have an id of "@id/android:list". So, how could I have more than one if they would need to have the same id?
View 1 Replies View RelatedHow to add image in expandable List in parent in android ?
If possible how to customize the child in expandable list?
I am looking to find out how to assign an image to a imageview in each child of an expandable list.
If anyone has any information or links to find out how to do this. code...
is what my adapter looks like at the moment, I have very little experience in customising adapters so I do not know where to start.
1) I have made an customizable expandable List .
2) Where I can customize the child.
3) But in parent(Group ID) I want to change the default icon of the parent.which look like(>).
I want to customize my ExpandableList my issue is i need a button and expandable list on single activity can i achieve that as i have seen all the examples they all extends ExpandableListActivity not the Activity in which i can put all the widgets in one activity
View 1 Replies View RelatedI am trying to compose a list with some items expandable and some single items. I wish to have it so that when either a single item or expandable list child is clicked, I can call an intent based on the text of the item.I suppose expandable lists would work, but is there a way to set items in an expandable list so that they don't have the expandable list icon? Should I use something other than a string array?What is the best way to do this?
View 2 Replies View RelatedHad no problem getting my phone to play nice with our exchange server at work and emails are coming/going fine.
However, there are some configuration items I have a big issue with as it relates to the 'look' of the email (coming from a BlackBerry).
1. Is there any way to have a single folder show my received items and sent items combined? My BB had this and it was very useful.
2. How can I edit the way my folders are displayed at the top horizontal bar? The sidescrolling folder display is awkward, it puts my inbox first (good) but then all subsequent folders are listed alphabetically; it pays no attention to their order on my desktop and also shows sub-folders of other files. Any way to change this?
3. Is there a way to change the way emails show as unread? The difference b/n read and unread is only a shade of grey, and difficult to see outside.
How do I remove expandable arrow from some of the items in ExpandableListView? Also is there way to customize this arrow, move it to another place in the item?
View 5 Replies View RelatedI met a problem , i have a expandableListView has 5 groups, if i wanna add some items to the second group , and update the expandableListView at run time, could someone teach me how to do that?
View 1 Replies View RelatedI am playing around with this example.
http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/view/ExpandableList2.html
I cannot figure out how to attach a listener to the children elements so that I can trigger some action when the user taps on the phone number.
I want to simulate an onClick event or some of the other keyboard events, etc. is there a general framework to do that?
View 11 Replies View Relatedi want to add a marker to a position int the map ,so i add a image through canvas by overwrite overlay .But i want to get the other activity through clicking the image,who can tell me what can i do?
View 2 Replies View RelatedIn onclicklistener onclick. how to get the x and y coordinates where its clicked.
View 2 Replies View RelatedI have a listview managed by an adapter that is extending BaseAdapter.
In the getview function im using the convertView to set up a OnClickListener. This OnClickListener work well when I am touching the screen but if I use the trackball of the HTC Desire, I see the row flashing on the screen, but the OnClickListener is not called...
I've read the android dev guide : http://developer.android.com/guide/topics/ui/ui-events.html
and its say that I should receive a onClick event from the trackball...
Im putting here my getview code in case someone see anything strange.
CODE:..............................
I am facing some problem Like:
Scenario:Three buttons enabled by on click event.
-I am using sliding drawer... on which no of buttons are there. -When sliding drawer is opened...its overlapping the preveously defined three buttons.
My problem is... when i am clicking on sliding drawer ... the below button is activated and accordingly it goes to next activity...
Means ... i expect if one view is on top of another view... the lower view should not work.
I am designing an application which requires Drag&Drop functionality to transfer items from one list to another.
Is there any way to drop item into another list, as i have seen applications to drag and drop items in the same list(Reordering the list)?
I have an activity, where the ListView holds customized linear layout elements for each row. One of the rows has a button defined as:
<Button
android:text="Pick a contact"
android:id="@+id/btnPickContact"
android:layout_width="wrap_content"
android:gravity="center_vertical"
android:layout_height="wrap_content"></Button>
Then in java, I have this code:...............
This should be a simple question because I couldn't get the answer from Google . I have ListView in a LinearLayout . I need to handle the click event to allow user click on the LinearLayout to trigger some function. I try to add onClickListener to the LinearLayout , and it works only when I click outside of the ListView . How do I let the click event on ListView propagate automatically to be handled by the Listener of the LinearLayout?
View 5 Replies View RelatedI have a ListView whose rows are formatted by me. Each row has a mix of ImageView and TextView. I have also implemented my own adapter and am able to draw each row through it.
Now, I would want something like this-
User clicks on an ImageView (not anywhere else on the row, but only this ImageView should respond to clicks)
I get to know the position of the row whose ImageView was clicked.
I have tried many things for this and have wanted my code to be as efficient as possible (in terms of overkill).
Currently i can capture the click event on that particular ImageView only, but I can't know which row was clicked.
I have provided an attribute in the Row XML like this-
CODE:..................
And in my code, I have a method like this:
CODE:..............
I can get the parent row (perhaps) but am not sure how to go further from here.
If you want a button to provide haptic feedback (ie, the phone vibrates very briefly so you can feel that you really pushed the button), what's the standard way to do that?
It seems you can either explicitly set an onClick() event and call the vibrate() function, giving a number of milliseconds to vibrate, or you can set hapticFeedbackEnabled in the view.
The documentation seems to indicate that the latter only works for long-presses or virtual on-screen keys: http://developer.android.com/reference/android/view/View.html#performHapticFeedback(int)
If that's right, then I need to either make my button a virtual on-screen key or manually set the onClick() event.
Also, if I want the vibrating to happen immediately when the user's finger touches the button, as opposed to when their finger "releases" the button, what's the best way to accomplish that?
Related question: [url]
In my application i have a button initially on the screen and in onclick of the button ,popup window should open. In the popup window i have an imagebutton , now on click of this button i want to start an activity. The popup window opens but i dont understand how to handle the onclick of the imagebtn inside popup window.
In main.xml i have a button and in popup_example.xml i have an imagebutton.
Java code is as follows:
CODE:..........
And i have two xml layouts.........
CODE:..................
I'm very new on Android development.
I have this code...
But this line doesn't work:
extraData.putInt(Constants.GAME_ID, this.gameId);
I can't get access to this.gameId.
How can I fix this?
I have a list View in my app (this is the xml layout):
CODE:.............
Each item of my list View is composed of two TextView:
CODE:.............
I would like to change background color (and text color) of each item of my ListView on focus (and, if possibile on selection). How can i do it?
I want to auto select an image in gallery and focus the selected image. I know the position (index) of the image in gallery. I am trying to use in res/layout/main.xml
<Gallery
android:id="@+id/galleryView"
android:layout_below="@id/imageViewMap"
android:layout_width="fill_parent"
android:layout_height="100sp"
android:layout_weight="1" />
in AlbumView.java
gallery = (Gallery) mView.findViewById(R.id.galleryView);
ImageView view = gallery.getItemAtPosition(position);
Unfortunately the above code is returning null. Can you please help in this matter.
I have a ListView, displaying some items, containing an ImageView filled with a standard image at first and a line of text.
What I wanna do is downloading one thumb after another with an AsyncTask and step for step change the standard image with the downloaded one. How to realise this?
The ListView contents are managed by an enhanced ArrayAdapter.
i was wondering if there was a way to have to separate contact lists, i recently switched to the moto Droid (from a blackberry), i run a business but have only the one phone and would like to keep my family & friends contacts separate from my business contacts.
View 5 Replies View RelatedI have a contact list from GMail. I have a contact list named Corporate (whatever that is). I have a contact list from my ActiveSync business account (Exchange server). I have a contact list from Phone.How can these be reduced to one? Certain programs (Better Cut) see contacts from one list but not others.
View 1 Replies View Related