has been working on custom controls for Android recently. for example, when you customize the navigation bar, you can: first define a navigation item containing pictures and text After , use the package name in the main navigate view, set each item...
I am a beginner in flutter. Today I want to customize an input box control. As a result, I encountered a strange problem. The custom space box cannot be put into the input box. If I put it into the input box, I will report an error. The code is as follo...
I try to switch pages using custom controls. I read this tutorial: composite controls now I use a Cardview and LinearLayout to put the button in it, but I can t do it. so I followed this tutorial: put the code to dynamically add page fragments ...
What data type is the best way to store foreign key id in mongodb? For example, in an article, if you want to store the user id, the foreign key id of the user, should you use the String type or the ObjectId type? ...
below. If you want to connect MySQL,build path with java under eclipse, what is the problem with ClassNotFoudException? `package kikikaka; public class Kika { public static void main(String[] args) { try{Class.forName("com.mysql.jdbc.Driver&...
problem description using VUE nuxt scaffolding to develop a server rendering project, all interface requests are completed by the @ nuxtjs proxy agent. You can confirm that the agent is accessible, but cannot get the image resources when you fi...
Picture description I want to know why the item, can t be passed, that is, the item that the parent component gets in the loop, why can t it be passed to the child component? ...
the title of the input tag of the safari browser will appear when the mouse is over, how to keep this thing from coming out? ...