I have a spinner that acts like a filter for searching among several categories. But the problem is that the spinner allows only one category to select from. Is there a way to obtain a multiple selection behavior for the spinner, or what other alternatives exists?
S spinner is designed to show one item at a time. You might get away by making a spinner of checkboxes, but it will be probably an awful user experience.
I would suggest you a ListView instead and CHOICE_MODE_MULTIPLE. You can add a listview to a dialog as shown in this answer: is it possible to create listview inside dialog?
Android provides Spinner widget which has functionality similar to drop-down list. But Spinner accepts single selection. so we select only one item at a time.so We can achieve multi-select feature using a custom Pop-up Window with a multi-select list.
Pop-up window is similar to Dialogs except that a pop-up window can be positioned.
When the drop-down button is clicked a list will be displayed(as drop-down), then you can select multiple values. The selected values will be displayed in a Text box above the list.
for reference you can prefer this link:
http://asnehal.wordpress.com/2012/04/03/multi-select-drop-down-list-in-android/
Related
I am working on xamarin.forms. I am creating an app for android. In app I have a dropdown list. I am using Picker for it. I customized it to look like dropdown. Now I need to make the first Index item to nonselactable. Means user can not select the first item. If user click on it nothing should happen. But currently when user click on the first index dropdown gets collapsed.
One more thing that I have to add in dropdown is a Cross button at index 1. Means at index 1, on left side there will be Cross button and at center there will be text like Select item. And this whole row should not be selctable. If user click at cross button dropdown should collapsed.
Anyone have idea how I can do this?
You can use listview for dropdown and control its visibility as per need.I faced similar situation where I customized list view to enact dropdown.There is another thing I want to know about Picker.Does your picker accepts or adds string only or you could customize it to accept views or controls?
Am new to development and have doubt in selecting listview items using android.
I have an listview with list of data from mysql and also have checkbox for selecting items and have button to pass the selected items to next screen.
What i want to know is how to select multiple items and send to next activity using the button.
Awaiting for your kind reply.
Perfect tutorial for your problem, might it will help you
ANDROID: MULTIPLE SELECTION LISTVIEW
How can one narrow items in a spinner by keyboard input?
I am looking for the functionality seen in HTML select on Android. Basically, I have a spinner with multiple items (hundreds in my case) and I want to be able to narrow the spinner to items relevant to keyboard input. So, if I press "71", I will get items starting with 71....
You need to implement a filter on the adapter for your Spinner. If you aren't using a custom adapter, you will most likely need to create one.
I have a ListActivity that presents a list of names from a database using a SimpleCursorAdapter. I want the user to be able to select 1 or more names by clicking them and then proceed to the next Activity. This should be a toggle, so that if the user clicks a selected name it will become de-selected. The underlying code is working fine, the problem is how to show the user which items are currently selected.
I looked at this solution: Android how to highlight a selection in a list and tried toggling .setSelected() on the TextView for the name. The problem is that the "selected" state apparently can only be true for one item in a list at a time. So if the user touches "Alice" then "Bob," only "Bob" will show as selected. Any thoughts on the best way to have a toggle-able highlight for multiple list items?
Have a look at the setChoiceMode method of the AbsListView class and its possible CHOICE_MODE_MULTIPLE parameter value.
I have a 2d array of strings. I would like to use a spinner to allow users to select values from the 2nd lvl of the array but I would like to display the selection options in a expandablelistview using the values of the 1st lvl of the array as category headers.
Is this possible, can someone point me in the right direction of how this should be implemented ?
You cannot directly use an ExpandableListView for the Spinner popup, any more than you can directly use a ListView for the Spinner popup. It is what it is, and that is defined by the Spinner class.
Options include:
Subclassing Spinner and overriding whatever drives the popup dialog
Copying Spinner into your project and replacing whatever drives the popup dialog (if overriding will not work due to method visibility, etc.)
Don't use a Spinner, and instead use a Button plus an AlertDialog containing an ExpandableListView, or something like that
In principle, you could override getDropDownView() in your SpinnerAdapter (e.g., ArrayAdapter). However, there is no concept of the drop-down view being disabled, and I assume you would want your category headers to be non-selectable. If, however, selecting a category is acceptable, this approach would be simplest.