Huawei H14-231_V1.0 - HCIP-HarmonyOS Application Developer V1.0
When a developer starts a music player on a remote device, he or she may not fill in the Deviceld of the remote device.
Sampling refers to the process of sampling a digital signal in a continuous time domain at certain time intervals to obtain a discrete signal in the discrete time domain.
HarmonyOS application packages are released in the form of application packs, which are composed of one or more HAPs (HarmonyOS Ability Packages) and pack.info describing each HAP attribute.
After the page is jumped or overwritten, it will enter the INACTIVE state, but the resources will not be released, and when the page switches back to the ACTIVE state, the click event will still respond normally.
With the help of HarmonyOS's Al capability, it can detect and recognize the text of image sources such as document remakes and street view reproductions, and can also be integrated into other applications to provide text detection and recognition functions, and provide translation, search and other related services based on therecognition results. This is by taking advantage of the super-resolution of text and images in AI.
The ListContainer grid layout can be realized through the setLayoutManager() method
When installing the HarmonyOS application development environment, if the network can directly access the Internet, developers need to set up Gradle and NPM agents to configure the development environment correctly.
The object relational mapping database mainly provides light-grade Key-Value exploration, which supports local applications to store less data, and the data is stored in local files and also loaded in memory, so the access speed is faster and more efficient.
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.
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.
In the HarmonyOS system architecture, the distributed data management module belongs to the framework layer.
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.
When a developer has multiple versions of the object-relational mapping database, and the developer calls the BookStoreUpgrade class to upgrade the database version, the version number of the BookStoreUpgrade class is configured as "2", and the actual version number of the current BookStore.db is "1".
The network management module of HarmonyOS can realize the communication between different processes of the machine, and the communication supports streaming socket technology.
What lifecycle processes will be triggered when a developer creates a Page instance and lets the instance be displayed in the foreground?
