程序包 ohos.bluetooth.ble

类 BleCentralManager

java.lang.Object

ohos.bluetooth.ble.BleCentralManager

public class BleCentralManager
extends Object

Starts, stops, and calls back BLE scanning.

Use BleCentralManagerCallback as a parameter to construct BleCentralManager instances. Customize the callback in BleCentralManagerCallback.

Use startScan(java.util.List<ohos.bluetooth.ble.BleScanFilter>) to start scanning.

Use stopScan() to stop scanning.

从以下版本开始:

1

构造器概要

构造器

构造器	说明
BleCentralManager(Context context, BleCentralManagerCallback callback)	A constructor used to create a BleCentralManager instance.

方法概要

限定符和类型	方法	说明
List<BlePeripheralDevice>	getDevicesByStates(int[] states)	Obtains the list of devices in the specified status.
void	startScan(List<BleScanFilter> filters)	Starts scanning for specified BLE devices with filters.
void	startScan(List<BleScanFilter> filters, int dutyRatio, int matchingMode)	Starts scanning for specified BLE devices with filters, duty ratio, and matching mode.
void	startScan(List<BleScanFilter> filters, int dutyRatio, int matchingMode, long time)	Starts scanning for specified BLE devices with filters, duty ratio, matching mode and delay report time.
void	stopScan()	Stops BleCentralManager from scanning devices.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

BleCentralManager

public BleCentralManager(Context context,
                         BleCentralManagerCallback callback)

A constructor used to create a BleCentralManager instance.

从以下版本开始:

4

方法详细资料

startScan

public void startScan(List<BleScanFilter> filters)

Starts scanning for specified BLE devices with filters.

参数:

filters - Indicates the list of filters used to filter out specified devices.

从以下版本开始:

1

startScan

public void startScan(List<BleScanFilter> filters,
                      int dutyRatio,
                      int matchingMode)

Starts scanning for specified BLE devices with filters, duty ratio, and matching mode.

参数:

filters - Indicates the list of filters used to filter out specified devices.

dutyRatio - Indicates the duty ratio.

matchingMode - Indicates the matching mode.

从以下版本开始:

1

startScan

public void startScan(List<BleScanFilter> filters,
                      int dutyRatio,
                      int matchingMode,
                      long time)

Starts scanning for specified BLE devices with filters, duty ratio, matching mode and delay report time.

参数:

filters - Indicates the list of filters used to filter out specified devices.

dutyRatio - Indicates the duty ratio.

matchingMode - Indicates the matching mode.

time - Indicates the delay report time.

从以下版本开始:

4

stopScan

public void stopScan()

Stops BleCentralManager from scanning devices.

从以下版本开始:

1

getDevicesByStates

public List<BlePeripheralDevice> getDevicesByStates(int[] states)

Obtains the list of devices in the specified status.

参数:

states - Indicates the connection status, which can be ProfileBase#STATE_DISCONNECTED, ProfileBase#STATE_CONNECTING, ProfileBase#STATE_CONNECTED, or ProfileBase#STATE_DISCONNECTING.

返回:

Returns the list of BlePeripheralDevice matching the specified status.