Usage in above example Spinner spinner = (Spinner) findViewById(R.id.spinner) ĪrrayAdapter adapter = ArrayAdapter.createFromResource(this, R.anets_array, android.R.layout.simple_spinner_item) ĪtDropDownViewResource(android.R.layout.simple_spinner_dropdown_item) Or with a prompt and something dynamic (could have had no prompt also): Using a standard prompt (notice that nothing is selected): You define a layout to 'look' like a prompt, for example, grayed out. The Dropdown doesn't normally show the prompt) (Note: Some themes show a DropDown for a Spinner instead of a dialog. This allows you to use a standard prompt or define your own 'nothing selected' as the first row, or both, or none.
(So you have to use the setTag or something else to ensure your convertView is correct.) Spinner does not support multiple view types There is an Android bug that makes this a little tougher to re-use views. (Swap cursor on the wrapped cursorAdapter of course.) Here is a working example tested for Android 2.3, and 4.0 (it uses nothing in the compatibility library, so it should be fine for awhile) Since it's a decorator, it should be easy to retrofit existing code and it works fine with CursorLoaders also. Using the simple_spinner_dropdown_item.xml definition.What you can do is decorate your SpinnerAdapter with one that presents a 'Select Option.' View initially for the Spinner to display with nothing selected. You can do the same to change the dropdown list item’s style. I use that as a base definition, so I’ll only changed what I need. You can check out the original android layouts definitions for the android.R.layout.simple_spinner_item resource bellow. Let’s call it spinner_dropdown_item.xml: Īnother change in the declaration of the spinner: ArrayAdapter adapter = ArrayAdapter.createFromResource(this, R.anets_array, R.layout.spinner_item) ĪtDropDownViewResource(R.layout.spinner_dropdown_item) Īnd this is what we get: Default spinner item definitions If you want to customize the dropdown list items you will need to create a new layout file. This is my spinner_item.xml: Īnd then change your declaration of the spinner to use the R.layout.spinner_item: ArrayAdapter adapter = ArrayAdapter.createFromResource(this, R.anets_array, R.layout.spinner_item) What you need to do is create your own layout file with a custom definition for the spinner item.
Nothing will actually change in your app. When you apply the textSize to a Spinner, like so:
Changing the text size or color of a Spinner is not as simple as just using the android:textSize attribute on the Spinner element.
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