Which modules in the following figure can be installed and operated independently?
The main function of EventHandler is to deliver InnerEvent events or Runnable tasks to other threads for processing.
Which of the following decorators can be used to manage the state of variables in custom components?
Suppose that multiple AbilitySlice are associated in MainAbility, and multiple AbilitySlice are switched in the same page, the lifecycle of MainAbility and all AbilitySlice is synchronized.
Which of the following processes does the HarmonyOS data lifecycle consist of?
HarmonyOS Distributed File Service can automatically share files under different accounts.
When a developer compiles a project, the compilation fails, and the message "This device type does not match project profile" is displayed, because the device type configured in "config.json" does not match the device type for debugging, and "deviceType" needs to be configured in the "module" tag.
Regarding the Tabs component and the TabContent component, the following description is correct
When a developer develops a social application, he needs to develop a plug-in that generates a contact QR code. In this scenario, the developer can use the code generation Al capability provided by HarmonyOS, which can return the corresponding QR code image byte stream based on the given string information.
When a developer is developing a smart home application, the Switch component will be used to represent the switch of some devices, and ON should be displayed on the ON status component, and 0FF should be displayed on the closed state component. You can use the following code to meet your needs:
Switch btnSwitch=
(Switch)findComponentByld(ResourceTable.
ld_btn_switch);
btnSwitch.setStateOffText("ON");
btnSwitch.setStateOnText("OFF");
When a developer is developing an application, he uses DevEco Studio to create an empty Java project, but does not install Node.js separately, and can still develop the project normally.
Knowing the variable int a=123, which of the following codes can successfully print the value of variable a in the console?
TESTED 27 Apr 2025
