I want to show an error message if no item is selected from the AutoCompleteTextView. Here is my XML Java Code It is not working What am I doing wrong? Answer If I set an error on customerSpinnerLayout then it works Everything is the same as above you just have to change the condition It works for me. Best of
Tag: spinner
How to center simple_spinner_dropdown_item in Android Studio?
I want to center the text of my simple_spinner_dropdown_item element, so I got this solution: However, this is just working for the simple_spinner_item where all the dropdown items are way to tight. But when ever I replace it by simple_spinner_dropdown_item the centering is no longer working. I guess the answ…
Passing variables from a spinner. Make empty spinner get recognized as the first value in the string
When the user enters the Activity, there will be 4 spinners that he needs to fill out and then click on a submit button. A progress dialog appears and the user will then get redirected back to the prior activity. In case the user doesn’t fill out all necessary data the app gets an NPE. Is it possible to…
Android Studio error in build – Cause: startElement.getAttributeByName(QName(“name”)) must not be null
I want to create a spinner widget, and I added this to string.xml: and I adapted it: and I got a build error: How can I solve this? Answer Special character like apostrophe(‘) are not allowed in xml directly Use can use escape sequences to get the desired result. Replace: Today’s by Today ‘…
How to populate a spinner with the result of a Firestore query?
I am creating a spinner which will show the subject name. The subject names are stored in my Firestore database as follows: I could fetch the result to an RecyclerView but unable to help myself to do so for spinner. Answer To solve this, please use the following lines of code: The result will be a spinner tha…
JavaFX’s Spinner raises NullPointerException on empty text input
I have an issue where an editable JavaFX 8 Spinner causes an uncaught NullPointerException if one clears the editor text and commits and then clicks either the increment or decrement button. This is j8u60 j8u77. With some luck the increment/decrement button will get stuck in depressed state and the NPE’…
How do you get the selected value of a Spinner?
I am trying to get the selected items string out of a Spinner. So far I have gotten this: This does not work and gives a class casting exception (I thought I could cast a View to a widget that inherits it. Obviously not!) So how do you get the selected value of a Spinner? Answer To get the selected