True

False

In theprocess of cross-terminal flow of distributed data, the data is classified and hierarchically managed

Distributed multi-terminal collaborative identity authentication

Build a trusted operating environment on distributed terminals

Thedistributed terminal must be a Huawei product

Bluetooth device scan can be initiated through the startBtDiscovery() interface

Before starting Bluetooth scanning, you need to register to broadcastBluetoothRemoteDevice

EVENT_DEVICE_DISCOVERED

You can use the getLocalName() interface to check whether Bluetooth is turned on

If you want to get the scanned device, you must inherit the onReceiveEvent(CommonEventData data) method that implements the ConmonEventSubscriber class when you register the broadcast, and receive the EVENT_DEVICE_DISCOVERED broadcast

width

rotate

opacity

scale

Get scan filter, if the filter isempty, it is not used to scan without filter

calls startScan() to start scanning the Bluetooth device

Before performing Bluetooth scanning, it is necessary to inherit the advertiseCallback class to implement startResultEvent

Callback, which is used to receive scan results

Call the BleCentralManager(BleCentralManagerCal1lback callback)API to obtain the device management object

C/C++

CSS

HTML5

JavaScript

True

False

True

False

preference follows the ACID characteristic

Preference is to access data in the form of Key-Value

The number of data stored in the preference is recommended not to exceed 10,000

The key of the preference is of type String

Combinable

Reusable

Configure the lifecycle

Data-driven updates

True

False

int size4 =AttrHelper.convertDimensionToPix(getContext(),"8vp”,0);

int size3=AttrHelper.convertDimensionToPix(getContext(),"8",0);

int size2 =AttrHe1per.vp2px(8,getContext());

int sizel =(int)(Dislaylanager.getInstance

().getDefaultDisplay(

getContext().get().getRealAttributes().scalDensity*8 +.5f);