I am having an Android view with a Spinner on it. I call a populateSpinner() method to add some default values to it.
I also have a onItemSelected() event which gets called before the view is completed to print.
I would like to run a code inside this block only when the user changes the selected items, not when I add or the form gets created.
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CODE:......
In this code i am creating two drop downs and now my requirement is when i select the item from first combo the data in the second combo must be changed according to the selected item of first combo. now in onItemSelected property how to code specially for first dropdown?
I've thought of some less than elegant ways to solve this, but I know I must be missing something.
My onItemSelected fires off immediately without any interaction with the user, and this is undesired behavior. I wish for the UI to wait until the user selects something before it does anything.
I even tried setting up the listener in the onResume, hoping that would help, but it doesn't. How can I stop this from firing off before the user can touch the control?
CODE:...........................
My Activity implements OnItemSelected listener for a spinner. It has the interesting problem of firing off the onItemSelected callback when the activity shows. So I used a flag hack to solve it (I hate it, but at this point I just want the app to work).
Strangely enough, even though the callback gets called right at activity start, my actual touch selections don't work. I can touch the list, open it, see the strings from the array adapter, and even touch it to make it dismiss - but the callback is never called.
My code:
CODE:...........
In onCreate():
CODE:..............
The callback:
CODE:................
The toast is shown right when the activity is shown, but when I select items in the spinner, the spinner dismisses and no toast is displayed again (not to mention the rest of the code in the callback fails to execute).
As the title says, i have a Spinner with just a couple of options and a button. I didnt declared any Listener for the spinner, instead of that, what i want is use the button and perform different actions depending on the spinner selected option.
So, i declared a handler in the button option "android:onClick", but once there, i dont know how to access the option selected in the Spinner.
I have a Spinner whose items comes from an ArrayAdaper, and I want the Spinner to initially show that no item has been selected. When the user clicks on the Spinner it's DropDownView should display just those items available for selection.
I don't want to add an empty/blank item at the head of my list of items because that means that it shows as an avalaible selection in the DropDownView and looks pretty lame. And if a selection is made I want it to be a valid one.
I tried spinner#setSelection(-1); but that doesn't work. The first item remains selected.
I tried setting no Adapter initially (which provides the desired initial view) and had hoped to configure the appropriate adapter in the OnClickListener, but spinner#setOnClickListener throw a RuntimeException saying "You probably want to use #setOnItemClickListener instead". And trying to use #setOnItemClickListener throws a RuntimeException saying it is not valid for a Spinner.
Surely this is a common use case. How can I set the Spinner to initially show as empty?
I'm binding a data table into a Spinner. But I cannot set the default selection for the Spinner based on a specified identifier which comes from the id column of the table.
How can I do that?
I want to know how to set the size of spinner.When i added large values to spinner list,the spinner expands and as result it pushes the labelField to the further left.
I want to know the how to set the spinner size to be a constant one
I have a update view, where I need to preselect the value stored in database for a Spinner.
I was having in mind something like this, but the Adapter has no indexOf method, so I am stuck .
void setSpinner(String value)
{
int pos=getSpinnerField().getAdapter().indexOf(value);
getSpinnerField().setSelection(pos);}
I am using a menu in my application Same as this post... I am using a gallery view for display my menu items
Text Gallery on Android?
Problem is that, i implement onItemSelected listener for gallery, so that when new item is selected data related to that topic loaded. But i also want to allow user to scroll the gallery fully. but each time when user move to next item onItemSelected() function called and it start loading data.
All i want to do is to put some delay in onItemSelected() function, so that if in between that delay user scroll next item than there is no need to load data of previous but for the current. Time may be 1 second. If user dose not go for next item in 1 second, that data of that item must be loaded.
I thought to start a thread,but each time for onItemSelected() there will be new thread...
I try this to.
CODE:............
But Fond Exception.
CODE:.............................
1) I have a Spinner with several options provided by an ArrayAdapter and have an onItemSelected listener on this Spinner. When selecting an item from the spinner, I want to display another view (list-view) but this method is unintentionally invoked upon initially displaying the view. The list-view is therefore displayed upon startup of the application. It is possible to add a spinner-on-item-select listener that won't fire upon initially displaying the view but only by the user selecting an item?
View 2 Replies View RelatedI use this code to generate a spinner in my app:
code:.........
On my device (Motorola Milestone) and in the emulator this looks like the standard gray spinner widget.
On of my colleagues uses a Motorola Backflip and on his device the Spinner is black. Now its very hard to read the font in the spinner.
What do I have to do to use my own view for the spinner? I don't mind to have the gray spinner on all devices, but it should always look the same on all devices.
I have an xml layout file which contains a few widgets including a Spinner
I want to display a list of strings in the spinner, the list is generated at runtime as a result of a function so it can not be in arrays.xml.
I tried doing:
CODE:...........
But this crashes my application.
I have a spinner 'aperture' set up with a list of numbers, and a spinner 'mode' with two options. When a button is pushed I need a calculation to run using various inputs, including the current selection from 'aperture' and a value derived from 'mode'. How do I call the value of a spinner so I can use it in a calculation?
Also, how do I use the spinner 'mode's selection to set this other value before implimenting it in the calculation? To be more specific, if the spinner is set to Small then the value I use in the calculation is 0.015, whereas if Large is selected I need to use 0.028
My other inputs are EditText views, so right now I am set up like this:
CODE:............
That is not the actual equation, it is just a test to make sure everything connects properly. How would I call the value of spinner 'aperture' and the Small/Large spinner 'mode'
I have a spinner widget in my activity which lets users pick a list name.
Normally, the function of the spinner is to switch between lists but for a couple of instances, I swap out the selection change listener to perform a different function with the same list of options. Once the selection has been made, the old listener is restored and life goes on.
This is a bad and buggy arrangement. Instead, I would like to have a function that just takes a selection listener and some other parameters and shows a popup list that's populated by the same cursor (or and identical cursor) as the spinner, without using the spinner itself.
Is there any way I can do this?
I am trying to populate a spinner depending on another spinner's selected item, my code is the following:
CODE:.................
what is intriguing me is that the first spinner onitemselection works perfectly ( I can see the values in LogCat) then when I change selection of the 2nd spinner I am gettging an error on this line: String selected= (String) s2.getSelectedItem(); So the compiler gets insisde then onItemSelected function of the 2nd spinner but throws an Handler exceltion on s2.getSelectedItem()
why? it works perfectly for the 1st spinner.
I am trying to write an application with a list of items read in from a file. This item list and the fields that go with each item are fed into a DB. The item names are presented to the user as an auto- completing list. Once the list item is selected, I would like to get the value from the list and use it to query the database and display all the detail information.
The problem I am having is trapping the event using onItemSelectedListener and onItemSelected.
Below is what I am trying.
CODE:..............
This doesn't compile, but it has the fewest syntax errors.
How to get an OnItemSelectedListener to work? and how I grab the value selected?
I am trying (as many are doing) to populate a 2nd spinner out of the first spinner selected item like this:..............
View 3 Replies View RelatedI' d like to fire up onKeyDown() event from my source code (for example from Activity). I want it, because i'd like to create program for remote keyboard, which will be PC keyboard. PC will send to mobile throw Socket message and mobile will fire up event from message in socket. Message will contain pressed key on PC keyboard. In future i'd like to create service, which will be starting on device power on .
View 2 Replies View RelatedI have 3-4 activities in the application and all of them have some event listeners that work nicely.
However only on one activity i simply can't get the event handling to work.
I tried the solution from this thread:http://www.anddev.org/view-layout-resource-problems-f27/ontouch-not-called-t16578.html
It doesn't work for me. I tried to manually set OnClickListeners for ImageViews from java code, android:onClick from XML.
It seems that some other component handles all the events, or my activity doesn't have some permission to handle events.
Should I put something in the AndroidMainfest.xml for my activity that enables handling events?
Hope someone has the idea what should i try, here's the code:
Activity:
CODE:........
Layout:
CODE:............................
Calendar c = new GregorianCalendar();
c.add(Calendar.DAY_OF_YEAR, 1);
c.set(Calendar.HOUR_OF_DAY, 23);
c.set(Calendar.MINUTE, 22);
c.set(Calendar.SECOND, 0);
c.set(Calendar.MILLISECOND, 0);
// We want the alarm to go off 30 seconds from now.
long firstTime = SystemClock.elapsedRealtime();
firstTime += 30*1000;
long a=c.getTimeInMillis();
// Schedule the alarm!
AlarmManager am = (AlarmManager)ctx.getSystemService(Context.ALARM_SERVICE);
am.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,
c.getTimeInMillis(), 1*60*60*1000, sender);
It is not executed at 23:22h. What I am doing wrong? I noticed firstTime and c.getTimeInMillis() differs a lot in size and length. When I use firstTime, so when set to 30 seconds, the alarm is executed well.
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:...............
Motorola fire
I accidentally deleted an android file through root, now my phone doesn't boot properly. All i get is "process com.android .setup wizard has stopped" and stays i idle in the black screen. Even i tried reseting the phone in recovery mode..
I have a kindle fire, I was able to root the kindle and I installed the android market, set it up using my google account and now I would like to change the account in the market but I can't find where can I do that....
View 3 Replies View RelatedI have this scenario
onResume of an activity:
CODE:............
Adapter has been defined as:
CODE:.............
And the onContentChanged event is not fired, although the onResume and the call to the adapter is issued.
I'm trying to root my kindle fire hd (version 7.4.8).Every time i use Kindle Fire First Aide on the command prompt it says that i have a system path not specified error.My laptop operating system is windows 8 ( I have not upgraded yet to latest version so I don't know if that's the problem).Steps I Used
1. Download KFFA
2. Opened KFFA using cmd
3. Used option 21 : Alternative root: newer devices
4. Says system path is not specified
5. It starts a daemon but thats all it does
I'm not sure but it also looks like i have a adb problem.I turned on the ADB with usb and used the adb drivers in KFFA but it never works
after trying the root kindle fire 6.3.1 as described here [URL] i lost my kindle fire. its not recognizable anymore. there are only words on screen "kindle fire" and i can turn it properly on. now the device is recognizable under the name lab126 kindle. but windows or mac dont see the device at all. windows write that usb debice cannot be identified properly. what i can do now? .. the root software doesnt see the device as well.
View 1 Replies View Related I got my Dad's old Motorola Fire XT530 recently. The thing is, he used the phone for around 2 weeks and then switched to a BlackBerry. He kept the phone switched off and locked up in his office bag. I fished it out yesterday and tried to switch it on, but it wouldn't even switch on. I connected it to the wall outlet and left out there for a while. The screen never turned on, but the lights on the soft keys below the screen did light up, so I assumed that it must be charging.
Anyway, after a while, I removed it from the outlet and switched it on, but it wouldn't boot up at all. Then I tried getting it into recovery and download mode, but it just wouldn't turn on at all. The device wasn't rooted, and I don't know what could have gone wrong that would make it like this.
I want to start developing for this device, seeing as there isn't even a decent ROM for this. I don't want to send it to the Motorola service centre; I have issues with them as it is.
I have a Kindle Fire HD and would like to install a SwiftKey keyboard on it. I am told that this is possible but in order to accomplish this I need to 'root' the device. And once installed I can unroot the device again.
View 1 Replies View RelatedI've fire xt 530 with stock rom 2.3.5 >> I made a Wifi access point Connection With Connectify And I Conneted It to My Phone But it Disconnect EVery 1 min ! My phone is rooted And i set wifi sleep policy To Never !
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