I always use allowmainthreadqueries() in Android Room. But many people say it is not recommend to do it. With this function, Room is very easy to use. But if i should change my app to not using this function, How do I do that? Is there an effective way to do it? Answer Yes, It is not a good approach
Tag: kotlin
Any Rx operator which could FlatMap and return both the output
I want to know if there’s an appropriate RxJava operator for my use-case. I have the below two methods. These are retrofit interfaces. fun getSources(): Single
Spring boot security in kotlin with users and roles
I have to work on an application that old interns started. The backend is made with spring-boot and using Kotlin, which I’m very new to both. The backed is a RESTful API and I need to implement an authentication and authorizations to limit the access to specific users the CRUD methods. There’s basically two user roles I need to create,
Attempt to switch database target during SASL authentication
I try to setup a Mongo DB in Spring Boot project. I’ve set an uri in application.yml: But application fails to read data from repository with error: Line where error occurs (kotlin): where and The same error occurs with findAll and save operations on repository (and likely others too) Stack trace: I am able to connect to mongo via Intellij
Name expected error when using @EnableAutoConfiguration in Spring Boot
I was having a similar error to the one found here and also here. I attempted to use @EnableAutoConfiguration to fix the error as was suggested, but IntelliJ gives me an error and says “Name expected”. I am unsure what exactly is causing this problem. One possible difference is that I am working in Kotlin and not in Java. Here
Cannot use Apache Commons-IO in Kotlin
I’m writing a CLI application, using the default template from IntelliJ IDEA. I installed commons-io 2.8, by searching for commons-io in the “From Maven” box. However, IntelliJ can’t find it. For example, I was looking for CountingInputStream, which can be imported by: But the import fails at .io. Answer Your project is seem to be a Gradle one. Gradle based
How to remove the underline under TextInputLayout in Android Material Design?
I was trying to remove the underline from a material design component named TextInputLayout. I have tried several different answers from SO which didn’t work out for me so I decided to ask my own question. How can I remove this underline? XML: Answer As stated in the material design guideline, this is activation indicator of TextInputLayout. Check Activation indicator
Kotlin process waits for all threads to finish?
I wrote this simple testing program: As I can see, the output is: My expectation is that at-least the “Thread End” message will not be printed, Cause that main function is ended and this main thread should be done running. Is Kotlin process always waiting for threads to finish before done? Answer The thread that you have created is a
Handle Response Kotlin Retrofit
I’m new to Kotlin and android development. Have been struggling to get my retrofit api to work. But have found a way to do it after some search on SO. I get the data response now, but I don’t know how to “separate” it, so that i can work around with it. this is my json response: and my model
If we change fragment before countdowntimer is finished, the application crashes in android
As soon as the application opens, I use a 2-second countdown timer. After 2 second I visible linearlayout and invisible progressbar. The reason I use this is because I can pull all data through firebase and assign it to the corresponding text boxes. However, if I pass to another activity during the countdown timer, the program crashes. I check the