Huawei Related Exams
H14-231_V1.0 Exam
If a developer wants to be able to get the return result when the user returns from the navigation target AbilitySlice, they should use presentForResult() to implement the navigation. When the user returns from the navigation target AbilitySlice, the system will call onResult() to receive and process the returned result.
When using EventHandler to implement inter-thread communication, if EventRunner takes out the Runnable task, it will trigger the callback method of EventHandler and the processing method of EventHandler.
When a developer migrates pictures on his mobile phone to a large screen, the interface layout automatically switches from vertical to horizontal; When the image is migrated, the image is migrated from the large screen to the mobile phone, and the interface layout is automatically switched from horizontal to vertical. Excuse me, how did this developer implement this feature?