When a developer starts a music player on a remote device, he or she may not fill in the Deviceld of the remote device.
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.
When an application calls a service, the service will check the permissions of the application, and the service cannot be used if there is no corresponding permission.
The following code snippet is used to start the Service of the remote device, if it is replaced with the Service.withDeviceld("deviceld") that starts the local device, it can be deleted.
Intent intent =new Intent();
Operation operation =new Intent.OperationBuilderO
.withDeviceld("deviceld")
.withBundleName
("com.domainname.hiworld.himusic")
.withAbilityName("com.domainname.hiworld.himusic.ServiceAbility")
.withFlags(Intent.FLAG_ABILITYSLICE_MULTI_DEVICE)
.bui1d();
intent.setOperation(operation);
startAbility(intent);
After the user enters a piece of text, with the help of the part-of-speech annotation interface, the application can perform automatic word segmentation, and label each word in the word segmentation result with a correct part of speech. However, the part-of-speech tagging feature provided by HarmonyOS only provides a fixed word segmentation granularity, and developers cannot customize the word segmentation granularity as needed when developing applications.
HarmonyOS's relational database and object relational mapping database are both based on SQLite.
In order to avoid affecting the startup speed, developers need to postpone the execution of non-essential time-consuming tasks until the time of use, instead of performing all initializations in the onStart() method.
Operations such as the display and update of the UI interface are carried out on the main thread, so the main thread is also called the UI thread.