RadioGroup | 支持多行多列等复杂布局的RadioGroup，重点是！！使用简单！！，称之为Multi_RadioGroup_Plus吧 | Navigation library

I'm working on a tasks app. I am wanting to save data like task name, time, and priority in Room. I have created the required classes as well. However, whenever I try to delete any particular item from the tasks, the app crashes. I am fairly new at using Room, so please pardon me if I made a silly mistake. Please do tell if you require code from the Room's database class or dao class... This is the stack trace:

I have 5 questions every one in a different activity with Raddiobuttongroup with 3 possible answer but only one is true every question have 20 mark and have a next and previous button to move from one question to another and when you finish the 5 answers you have your result in a result activity but it works only if I did not use any previous button how can I achieve that with using previous button and the ability to change my answers here is the code.

I am working on a tasks app, and I want to use Room to save my data. So I've created the 3 required classes. However, in my DAO class, my @Query statement isn't working, as it says:

Cannot resolve certain symbols

I have no idea why this is happening. Please help.

Code for subtaskdetails (the first class):

Greeting, in general the problem is this, I created a web application using React JS, like a database using Firesbase Firestore. Everything worked fine until it was time to update the security rules (they were temporary, well, and time was up). It demanded to immediately change the rules, otherwise the base will stop responding after the expiration of the term. At first, I just extended the temporary rules, but it only worked once, after that all such attempts were in vain. After reading the documentation on writing security rules and looking at a couple of tutorials, I decided to write simple rules allow read: if true; allow write: if false;. In the project, the user does not interact with the base in any way, the text simply comes from the base and everything is essentially, so these rules are more than enough. I also additionally checked these rules on the emulator and everything went well. I saved the rules, but the application did not rise, I tried other options, to the extent that I simply put true everywhere and made the base completely open, but to no avail. I have already tried everything and crawled everything, but I still could not find a solution.

My app code:

Link to sandbox replecating the behavior sand box demo

I have a hook in a React component that I am using as a countdown for time to answer a question.

I am in stuck with pretty easy thing.

I have an activity with Fragment which includes RecyclerView and custom adapter with items. This activity is about radio stations.

So in my adapter I have several items with Play-Stop button. When I click on the button there is "play" symbol. One more click on those button - there will be "stop" button. This logic works.

BUT if I will click on other item, on other Play-Stop button, all previously clicked items will save different states, so I want to change state for previous clicked item - only current clicked item with current position can have different Play-Stop button. How can I get it?

I have tried some notify...() methods but without result that I want. I think I am trying notify adapter in the wrong places.

My app crashes. I look throught most are using this approach public class MainActivity extends where is the errors in this short code

I have used the antd Radio Group and I want to call a function when the user clicks on the options, no matter the option is selected or not.

I used the onChange but it works only in changing selected option cases. Suppose I have this options in my radio group: A,B,C. Now A is selected. I want to console.log("A") when the user clicks on A. if the user clicks on A twice, I want to console.log twice.