Spinner Small Size - android

I have a spinner with data content, but the spinner is very small. How can i put the spinner diferrent?

I guess you're talking about the "drop down" item list (in the other case you would just have to change the size of the Spinner in the xml file).
You have differents way to set the Adapter actually, for example, when you declared your ArrayAdapter (or another Adapter), you can set a layout to put data in a View.
See Android.R.layout
For example : "simple_spinner_item" is really small so you'd rather use another one like "simple_dropdown_item_1line"
ArrayAdapter<String> spinnerArrayAdapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item,spinnerArray);
Can you show us some code if this is not what you are looking for ? I'm not sure of what you are talking (if it's the Spinner element or the list)

Related

how to add extra space between items in dynamic spinner

Hey i am creating a spinner dynamically..it creating fine..no problem with that...but items are separate with narrow gap thats why one item is almost attached with others...i want a gap between items.please help
my code is like below..
ArrayAdapter<String> adapter=new ArrayAdapter<String>(BidActivity.this,android.R.layout.simple_spinner_item,result1);
spinner=(Spinner) findViewById(R.id.spinner1);
spinner.setAdapter(adapter);
You need to create a Custom Spinner Layout for this type of achievement.
Go to this Link custom-layout-for-spinner-item used this and customized by your own way.
thnks
my suggestion is please go for a custom spinner for which you can see the code at
http://mrbool.com/how-to-customize-spinner-in-android/28286
http://androidexample.com/Custom_Spinner_With_Image_And_Text_-_Android_Example/index.php?view=article_discription&aid=84&aaid=107
http://www.edureka.in/blog/custom-spinner-in-android/

Adding Spinner to Listview Header and popuate values dynamically

I have a question about adding spinner to listview header:
How should I get a spinner to showup in the listview header.
How to dynamically populate values in this spinner based on values in the listview.
Description:
I have a listview which populates values from an XML file (placed on the net). This list can be huge based on user selection on previous screen(s) and/ or data in XML file.
I would like to add a spinner at the top of the listview such that user will have an option to perform filter action/ sort action. How should this be achieved?
For example:
If my app shows a list of books available in the library. The spinner should help user to:
1. Sort alphabetically based on book title
2. Sort alphabetically based on author name
3. Filter out only books related to 'War'
4. Filter out only books related to 'History'
5. Filter out only books related to 'Science'
When I am populating the listview, the XML provides details such as 'Type of Book', 'Author', 'Title', etc.
Question is, how do I place a spinner at the top & populate values like, the types (War, History, Crime, etc.) to the Spinner based on the list of books in the listview.
I have tried to be as descriptive as possible. If any further details required, please let me know.
Any help will be highly appreciated.
Thanks a Bunch!
For putting the spinner above the ListView, check this method out: http://developer.android.com/reference/android/widget/ListView.html#addHeaderView%28android.view.View%29
Or you could put a custom title-layout thing about the ListView in the parent layout for the Activity.
More ListView help: http://www.vogella.de/articles/AndroidListView/article.html#listview_overview
As far as populating the spinner, you can have the spinner set to whichever values you want. In the example online( http://developer.android.com/resources/tutorials/views/hello-spinner.html ):
String[] myValues = // Put code here for the values and size of array you want.
Spinner spinner = (Spinner) findViewById(R.id.spinner);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
this, YOUR_STRING_ARRAY_VARIABLE_HERE, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);
It is your job as a programmer to figure out how to take which item is selected in the spinner and make changes to the listView. To update values in a listview check this out: update listview dynamically with adapter
One solution and how I would do it is make a custom Java class for an Entry so that you can take in the XML file and give each entry instance variables or characteristics to sort them by. Then using this data model, make a class EntryList or EntryArray that can handle the sorting of your Entry data objects. Then have a toStringArray() method that will return a string array. In this way you hold on to the data, and allow all of the sorting you need. Each time the spinner is clicked, the corresponding method in EntryList or EntryArray is called, a new String array is put in the adapter, and the user sees the new sorted list.
This was probably a lot to digest, so read up on all of the links, and see if you can implement it. Cheers!

Android spinner layout

I have set a dynamic value in a spinner . I am using following code for the same.
spinner_generalbooks.setAdapter(new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_spinner_item, new String[]{"Author","ISBN","Keyword","Title"}));
It is working fine, but I have a problem with the view of the spinner . If we select simple_spinner_item, it is ok in normal state, but when we want to change it, the rows are very narrow and not CheckedTextView whereas in normal spinner options comes with CheckedTextView. If we select simple_spinner_dropdown_item, the options come with CheckedTextView, but in normal state, it looks different as in the pic
(First one is default spinner and second one is using simple_spinner_dropdown_item).
I want to show the spinner just like as default spinner. How to make it?
Android will take the layout specified in the adapter and use it for the control and the items unless you specify the view-resource separately. The way through this is to set the layout to simple_item in the ArrayAdapter constructor and then set the layout dropdown_item separately in a call to setDropDownViewResource().
ArrayAdapter newAdapter = new ArrayAdapter(getApplicationContext(), android.R.layout.simple_spinner_item, new String[]{"Author","ISBN","Keyword","Title"});
newAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner_generalbooks.setAdapter(newAdapter);
If you whant to customize the visual of your Spinner, it'll be more simple to create your own component. A spinner is just a Layout that contains text, image and that display a list in a popup. Create a custom layout for your item and use a new BaseAdapter object to bind your datas.
http://thinkandroid.wordpress.com/2010/01/13/custom-baseadapters/
hope i could help

Custom spinner items not appearing as part of Spinner

I'm running into a problem: when I use a non-trivial type of Spinner item, the Spinner displays the drop-down list someplace other than on the Spinner.
(Note: most of this description is identical to https://stackoverflow.com/questions/4188443/android-doesnt-honor-selection-change-with-custom-spinner-items, but the problem I'm reporting here is slightly different. I've split these up so it's clear where to direct different replies to)
My goal was to have a slightly more fancy display for each item in the spinner, and so I started by creating a layout that contains several items, one of which is the target TextView (lbl2, in this case)
I then attempt to set up the Spinner (my eventual goal is to populate the spinner programmatically, so I'm not using resources to set this up) using:
Spinner spinner = (Spinner) findViewById(R.id.spinner);
ArrayAdapter<CharSequence> adapter = new ArrayAdapter<CharSequence>(
this, R.layout.spinner_fancy, R.id.lbl2);
adapter.add("Item #1");
adapter.add("Item #2");
adapter.add("Item #3");
spinner.setAdapter(adapter);
When I run the program it looks (mostly) good - the Spinner is, in fact, rendering the goofy-looking multi-color, vertical layout of three textviews for each item, and it's correctly substituting Item #1, Item #2, and Item #3 for lbl2. I can even click on the spinner & bring up the drop-down list of choices.
This problem is that the items aren't displayed over the spinner. Instead they're just kind of floating over the activity, a bit further down. Hopefully this picture will help clarify: Floating Spinner Elements http://www.freeimagehosting.net/uploads/bf9f584156.png
EDIT: Thanks for the vote up - I've fixed up the image so it's now inline!
Android Spinners work in that way... The list of items is shown in "dialog mode".
You can add a title to the list using this in the XML layout (in the spinner section):
android:prompt="Select a fancy item..."

How to manage the height of android spinner items?

I have an android spinner that's populated by a list of strings using an ArrayAdapter and it operates fine, however because of the way the spinner is displayed I'm running into a display height problem with the list items.
At first glance, it would seem that the ArrayAdapter can use a single layout for displaying options which leads to the problem I'm having. When displaying the current item in the spinner (when the user is not selecting a new item from the list) the spinner pads the text so that the spinner is a reasonable size for clicking on. However, when the user taps on it and brings up the list to select a new item, the list items presented are way too small height-wise. If I use an item layout that presents the list items at a reasonable height, then the spinner itself becomes exorbitantly huge due to its own padding of the list item.
Any ideas on how I can manage the height of these two item display modes so that effectively they display with the same height value instead of the spinner height being larger than the list item display height?
I've run into this issue myself a while ago, and it turned out that I need to use different layouts for dropdown and display
I have this code:
adapter = new SimpleCursorAdapter(this, android.R.layout.simple_spinner_item, cGroups,
new String[] {
"name", "_id"
}, new int[] {
android.R.id.text1
});
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
Yes, the above answer is correct.
It took me forever to find this, because it's wrong in the sdk samples for 2.2 Android. And I had a hard time accepting that.
Here's a snippet from
samples/android-12/Spinner/src/com/android/example/spinner/SpinnerActivity.java:
this.mAdapter = ArrayAdapter.createFromResource(this, R.array.Planets,
android.R.layout.simple_spinner_dropdown_item);
while it should have android.R.layout.simple_spinner_item there instead and simple_spinner_dropdown_item should only be used for the dropdown items. Otherwise the spinner arrow get streched and it draws dropdown selection circle to the display, too.

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