When a developer starts a music player on a remote device, he or she may not fill inthe Deviceld of the remote device.
In order to improve the user experience, a developer uses ScrollView to realize the scrolling display of photos in an album application, and in order to improve the user experience, the developer sets the ScrollView rebound_effect property to true, so that the photo has a rebound effect when sliding to the bottom.
In the lifecycle of AbilitySlice, the onStart() callback method does not need to be rewritten.
Although a Page can contain multiple AbilitySlices, when a Page enters the foreground, the interface displays only one Abilitylice by default.
A Page Instance can contain a group of related pages, and each page is represented by an AbilitySlice instance.
The atomic service consists of one or more HAP packets, andone HAP packet corresponds to one FA or one PA. Each FA or PA can be operated independently to perform 1 specific function.
A manufacturer used HarmonyoS to produce a dash cam (memory is 64MB), which is small in size and light in weight, and is a lightweight system device.
AbilitySlice and Page have the same lifecycle state and callback method with the same name, and when the Lifecycle of the Page changes, the same lifecycle change will occur in AbilitySlice. Similarly, as the lifecycle of an AbilitySlice changes, the lifecycle state of a Page changes.
Static animation has a start state, an end state and an intermediate state, if you need to set the transition state and transition effect in the middle, you can use static animation to achieve it.
Developers can create user interfaces directly on AbilitySlice or on Ability.
If a developer wants to develop a file background download function, there needs to be a Page Ability to provide U pages, and a Service Ability to provide the background file download function. If you want to perform some operations after connecting to the Service Ability in the Page Ability, you need to implement the onAbilityConnectDone() method in the Page Ability.
When a developer navigates within the same page, the AbilitySlice is new, even if present(newTargetSlice(), new Intent()) is repeatedly called, it will not cause any AbilitySlice to be out of the stack.
A manufacturer uses the HarmonyOS system to produce a smart oven, which is a lightweight system device in HarmonyOS.
When designing a JavaScript UI based on HarmonyOS, if the text component itself cannot be focused, the focus cannot be moved to the component, and the focusableattribute of text is set to true. text component.
PositionLayout is an adaptive layout, which is mainly used in scenarios where multiple components at the same level need to automatically adjust the number of columns on different screen sizes.
