Another subproject of ours provides the loading animations in CSS format. For user convenience the images can be sorted to include only animations that are available in SVG format and by other options. Most of the non-3D images are available in 3 formats - GIF, APNG and SVG. project provides more than 1000 different animations, split into 18 categories including most widely used loading spinners, horizontal bars, animated custom texts and others. It's still not very popular due to it's size in bytes comparing to all other formats. so when the user will click on the spinner so it will show options and then after this when you will choose any item so it will show in textview so you can see which value you are saving in firebase realtime database.

At the moment the APNG format is supported by most major browsers now. In this layout we will implement Spinner and a text view and a button for saving the value. There is also APNG (or animated PNG) format which appeared because of the GIF limitations, but was denied by a number of comminities in the beginning.

The animation objects are usually used in GIF format which is very popular due to it's history, but the loading images in SVG and CSS format are getting more and more poplular because of infinite size scalability - they can have any dimensions and relatively smaller size in bytes. Being an critically important part of web-site and application design and usability, mostly the animations are used to show that something is loading on the background (e.g. Import .Loading GIF or, so called loader gif is an animation that indicates a loading process on a web-site or an application. The following code reproduces the issue for me: import With some luck the increment/decrement button will get stuck in depressed state and the NPE's keep flowing locking up the application. If not, like an empty adapter waiting to be populate. Before starting your application,Android studio will display following window to select an option where you want to run your Android application. 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. But, make sure you have at least one value in the Spinner adapter when you are doing your verification. Spinner Tutorial : In This Video, You Will Learn How to to Set Selected Item Of Spinner By String Value in Android Studio.All File :1) activitymain.xml 2). To run the app from Android studio, open one of your projects activity files and click Run icon from the toolbar.

Android studio spinner set empty text