@ohos.telephony.observer (Observer)
The observer module provides event subscription management functions. You can register or unregister an observer that listens for the following events: network status change, signal status change, call status change, cellular data connection status, uplink and downlink data flow status of cellular data services, and SIM status change.
NOTE
The initial APIs of this module are supported since API version 6. Newly added APIs will be marked with a superscript to indicate their earliest API version.
Modules to Import
import observer from '@ohos.telephony.observer';
observer.on('networkStateChange')
on(type: 'networkStateChange', callback: Callback<NetworkState>): void
Registers an observer for network status change events. This API uses an asynchronous callback to return the execution result.
Required permission: ohos.permission.GET_NETWORK_INFO
System capability: SystemCapability.Telephony.StateRegistry
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
type | string | Yes | Network status change event. This field has a fixed value of networkStateChange. |
callback | Callback<NetworkState> | Yes | Callback used to return the result. For details, see NetworkState. |
Error codes
For details about the error codes, see Telephony Error Codes.
ID | Error Message |
---|---|
201 | Permission denied. |
401 | Parameter error. |
8300001 | Invalid parameter value. |
8300002 | Operation failed. Cannot connect to service. |
8300003 | System internal error. |
8300999 | Unknown error code. |
Example
observer.on('networkStateChange', (data: observer.NetworkState) => {
console.log("on networkStateChange, data:" + JSON.stringify(data));
});
observer.on('networkStateChange')
on(type: 'networkStateChange', options: ObserverOptions, callback: Callback<NetworkState>): void
Registers an observer for network status change events of the SIM card in the specified slot. This API uses an asynchronous callback to return the execution result.
Required permission: ohos.permission.GET_NETWORK_INFO
System capability: SystemCapability.Telephony.StateRegistry
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
type | string | Yes | Network status change event. This field has a fixed value of networkStateChange. |
options | ObserverOptions | Yes | Event subscription parameters. |
callback | Callback<NetworkState> | Yes | Callback used to return the result. For details, see NetworkState. |
Error codes
For details about the error codes, see Telephony Error Codes.
ID | Error Message |
---|---|
201 | Permission denied. |
401 | Parameter error. |
8300001 | Invalid parameter value. |
8300002 | Operation failed. Cannot connect to service. |
8300003 | System internal error. |
8300999 | Unknown error code. |
Example
let options: observer.ObserverOptions = {
slotId: 0
}
observer.on('networkStateChange', options, (data: observer.NetworkState) => {
console.log("on networkStateChange, data:" + JSON.stringify(data));
});
observer.off('networkStateChange')
off(type: 'networkStateChange', callback?: Callback<NetworkState>): void
Unregisters the observer for network status change events. This API uses an asynchronous callback to return the execution result.
NOTE
You can pass the callback of the on function if you want to cancel listening for a certain type of event. If you do not pass the callback, you will cancel listening for all events.
System capability: SystemCapability.Telephony.StateRegistry
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
type | string | Yes | Network status change event. This field has a fixed value of networkStateChange. |
callback | Callback<NetworkState> | No | Callback used to return the result. For details, see NetworkState. |
Error codes
For details about the error codes, see Telephony Error Codes.
ID | Error Message |
---|---|
401 | Parameter error. |
8300001 | Invalid parameter value. |
8300002 | Operation failed. Cannot connect to service. |
8300003 | System internal error. |
8300999 | Unknown error code. |
Example
let callback: (data: observer.NetworkState) => void = (data: observer.NetworkState) => {
console.log("on networkStateChange, data:" + JSON.stringify(data));
}
observer.on('networkStateChange', callback);
// You can pass the callback of the on method to cancel listening for a certain type of callback. If you do not pass the callback, you will cancel listening for all callbacks.
observer.off('networkStateChange', callback);
observer.off('networkStateChange');
observer.on('signalInfoChange')
on(type: 'signalInfoChange', callback: Callback<Array<SignalInformation>>): void
Registers an observer for signal status change events. This API uses an asynchronous callback to return the execution result.
System capability: SystemCapability.Telephony.StateRegistry
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
type | string | Yes | Signal status change event. This field has a fixed value of signalInfoChange. |
callback | Callback<Array<SignalInformation>> | Yes | Callback used to return the result. For details, see SignalInformation. |
Error codes
For details about the error codes, see Telephony Error Codes.
ID | Error Message |
---|---|
401 | Parameter error. |
8300001 | Invalid parameter value. |
8300002 | Operation failed. Cannot connect to service. |
8300003 | System internal error. |
8300999 | Unknown error code. |
Example
import radio from '@ohos.telephony.radio';
observer.on('signalInfoChange', (data: Array<radio.SignalInformation>) => {
console.log("on signalInfoChange, data:" + JSON.stringify(data));
});
observer.on('signalInfoChange')
on(type: 'signalInfoChange', options: ObserverOptions, callback: Callback<Array<SignalInformation>>): void
Registers an observer for signal status change events of the SIM card in the specified slot. This API uses an asynchronous callback to return the execution result.
System capability: SystemCapability.Telephony.StateRegistry
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
type | string | Yes | Signal status change event. This field has a fixed value of signalInfoChange. |
options | ObserverOptions | Yes | Event subscription parameters. |
callback | Callback<Array<SignalInformation>> | Yes | Callback used to return the result. For details, see SignalInformation. |
Error codes
For details about the error codes, see Telephony Error Codes.
ID | Error Message |
---|---|
401 | Parameter error. |
8300001 | Invalid parameter value. |
8300002 | Operation failed. Cannot connect to service. |
8300003 | System internal error. |
8300999 | Unknown error code. |
Example
import radio from '@ohos.telephony.radio';
let options: observer.ObserverOptions = {
slotId: 0
}
observer.on('signalInfoChange', options, (data: Array<radio.SignalInformation>) => {
console.log("on signalInfoChange, data:" + JSON.stringify(data));
});
observer.off('signalInfoChange')
off(type: 'signalInfoChange', callback?: Callback<Array<SignalInformation>>): void
Unregisters the observer for signal status change events. This API uses an asynchronous callback to return the execution result.
NOTE
You can pass the callback of the on function if you want to cancel listening for a certain type of event. If you do not pass the callback, you will cancel listening for all events.
System capability: SystemCapability.Telephony.StateRegistry
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
type | string | Yes | Signal status change event. This field has a fixed value of signalInfoChange. |
callback | Callback<Array<SignalInformation>> | No | Callback used to return the result. For details, see SignalInformation. |
Error codes
For details about the error codes, see Telephony Error Codes.
ID | Error Message |
---|---|
401 | Parameter error. |
8300001 | Invalid parameter value. |
8300002 | Operation failed. Cannot connect to service. |
8300003 | System internal error. |
8300999 | Unknown error code. |
Example
import radio from '@ohos.telephony.radio';
let callback: (data: Array<radio.SignalInformation>) => void = (data: Array<radio.SignalInformation>) => {
console.log("on signalInfoChange, data:" + JSON.stringify(data));
}
observer.on('signalInfoChange', callback);
// You can pass the callback of the on method to cancel listening for a certain type of callback. If you do not pass the callback, you will cancel listening for all callbacks.
observer.off('signalInfoChange', callback);
observer.off('signalInfoChange');
observer.on('callStateChange')
on(type: 'callStateChange', callback: Callback<CallStateInfo>): void
Registers an observer for call status change events. This API uses an asynchronous callback to return the execution result.
System capability: SystemCapability.Telephony.StateRegistry
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
type | string | Yes | Call status change event. This field has a fixed value of callStateChange. |
callback | Callback<CallStateInfo> | Yes | Callback used to return the result. For details, see CallState. number: phone number. |
Error codes
For details about the error codes, see Telephony Error Codes.
ID | Error Message |
---|---|
401 | Parameter error. |
8300001 | Invalid parameter value. |
8300002 | Operation failed. Cannot connect to service. |
8300003 | System internal error. |
8300999 | Unknown error code. |
Example
observer.on('callStateChange', (data: observer.CallStateInfo) => {
console.log("on callStateChange, data:" + JSON.stringify(data));
});
observer.on('callStateChange')
on(type: 'callStateChange', options: ObserverOptions, callback: Callback<CallStateInfo>): void
Registers an observer for call status change events. This API uses an asynchronous callback to return the execution result.
System capability: SystemCapability.Telephony.StateRegistry
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
type | string | Yes | Call status change event. This field has a fixed value of callStateChange. |
options | ObserverOptions | Yes | Event subscription parameters. |
callback | Callback<CallStateInfo> | Yes | Callback used to return the result. For details, see CallState. number: phone number. |
Error codes
For details about the error codes, see Telephony Error Codes.
ID | Error Message |
---|---|
401 | Parameter error. |
8300001 | Invalid parameter value. |
8300002 | Operation failed. Cannot connect to service. |
8300003 | System internal error. |
8300999 | Unknown error code. |
Example
let options: observer.ObserverOptions = {
slotId: 0
}
observer.on('callStateChange', options, (data: observer.CallStateInfo) => {
console.log("on callStateChange, data:" + JSON.stringify(data));
});
observer.off('callStateChange')
off(type: 'callStateChange', callback?: Callback<CallStateInfo>): void
Unregisters the observer for call status change events. This API uses an asynchronous callback to return the execution result.
NOTE
You can pass the callback of the on function if you want to cancel listening for a certain type of event. If you do not pass the callback, you will cancel listening for all events.
System capability: SystemCapability.Telephony.StateRegistry
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
type | string | Yes | Call status change event. This field has a fixed value of callStateChange. |
callback | Callback<CallStateInfo> | No | Callback used to return the result. For details, see CallState. number: phone number. |
Error codes
For details about the error codes, see Telephony Error Codes.
ID | Error Message |
---|---|
401 | Parameter error. |
8300001 | Invalid parameter value. |
8300002 | Operation failed. Cannot connect to service. |
8300003 | System internal error. |
8300999 | Unknown error code. |
Example
let callback: (data: observer.CallStateInfo) => void = (data: observer.CallStateInfo) => {
console.log("on callStateChange, data:" + JSON.stringify(data));
}
observer.on('callStateChange', callback);
// You can pass the callback of the on method to cancel listening for a certain type of callback. If you do not pass the callback, you will cancel listening for all callbacks.
observer.off('callStateChange', callback);
observer.off('callStateChange');
observer.on('cellularDataConnectionStateChange')7+
on(type: 'cellularDataConnectionStateChange', callback: Callback<DataConnectionStateInfo>): void
Registers an observer for connection status change events of the cellular data link. This API uses an asynchronous callback to return the result.
System capability: SystemCapability.Telephony.StateRegistry
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
type | string | Yes | Cellular data connection status event. This field has a fixed value of cellularDataConnectionStateChange. |
callback | Callback<DataConnectionStateInfo> | Yes | Callback used to return the result. For details, see DataConnectState and RadioTechnology. |
Error codes
For details about the error codes, see Telephony Error Codes.
ID | Error Message |
---|---|
401 | Parameter error. |
8300001 | Invalid parameter value. |
8300002 | Operation failed. Cannot connect to service. |
8300003 | System internal error. |
8300999 | Unknown error code. |
Example
observer.on('cellularDataConnectionStateChange', (data: observer.DataConnectionStateInfo) => {
console.log("on cellularDataConnectionStateChange, data:" + JSON.stringify(data));
});
observer.on('cellularDataConnectionStateChange')7+
on(type: 'cellularDataConnectionStateChange', options: ObserverOptions, callback: Callback<DataConnectionStateInfo>): void
Registers an observer for connection status change events of the cellular data link over the SIM card in the specified slot. This API uses an asynchronous callback to return the result.
System capability: SystemCapability.Telephony.StateRegistry
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
type | string | Yes | Cellular data connection status event. This field has a fixed value of cellularDataConnectionStateChange. |
options | ObserverOptions | Yes | Event subscription parameters. |
callback | Callback<DataConnectionStateInfo> | Yes | Callback used to return the result. For details, see DataConnectState and RadioTechnology. |
Error codes
For details about the error codes, see Telephony Error Codes.
ID | Error Message |
---|---|
401 | Parameter error. |
8300001 | Invalid parameter value. |
8300002 | Operation failed. Cannot connect to service. |
8300003 | System internal error. |
8300999 | Unknown error code. |
Example
let options: observer.ObserverOptions = {
slotId: 0
}
observer.on('cellularDataConnectionStateChange', options, (data: observer.DataConnectionStateInfo) => {
console.log("on cellularDataConnectionStateChange, data:" + JSON.stringify(data));
});
observer.off('cellularDataConnectionStateChange')7+
off(type: 'cellularDataConnectionStateChange', callback?: Callback<DataConnectionStateInfo>): void
Unregisters the observer for connection status change events of the cellular data link. This API uses an asynchronous callback to return the result.
NOTE
You can pass the callback of the on function if you want to cancel listening for a certain type of event. If you do not pass the callback, you will cancel listening for all events.
System capability: SystemCapability.Telephony.StateRegistry
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
type | string | Yes | Cellular data connection status event. This field has a fixed value of cellularDataConnectionStateChange. |
callback | Callback<DataConnectionStateInfo> | No | Callback used to return the result. For details, see DataConnectState and RadioTechnology. |
Error codes
For details about the error codes, see Telephony Error Codes.
ID | Error Message |
---|---|
401 | Parameter error. |
8300001 | Invalid parameter value. |
8300002 | Operation failed. Cannot connect to service. |
8300003 | System internal error. |
8300999 | Unknown error code. |
Example
let callback: (data: observer.DataConnectionStateInfo) => void = (data: observer.DataConnectionStateInfo) => {
console.log("on cellularDataConnectionStateChange, data:" + JSON.stringify(data));
}
observer.on('cellularDataConnectionStateChange', callback);
// You can pass the callback of the on method to cancel listening for a certain type of callback. If you do not pass the callback, you will cancel listening for all callbacks.
observer.off('cellularDataConnectionStateChange', callback);
observer.off('cellularDataConnectionStateChange');
observer.on('cellularDataFlowChange')7+
on(type: 'cellularDataFlowChange', callback: Callback<DataFlowType>): void
Registers an observer for the uplink and downlink data flow status change events of the cellular data service. This API uses an asynchronous callback to return the result.
System capability: SystemCapability.Telephony.StateRegistry
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
type | string | Yes | Cellular data flow change event. This field has a fixed value of cellularDataFlowChange. |
callback | Callback<DataFlowType> | Yes | Callback used to return the result. For details, see DataFlowType. |
Error codes
For details about the error codes, see Telephony Error Codes.
ID | Error Message |
---|---|
401 | Parameter error. |
8300001 | Invalid parameter value. |
8300002 | Operation failed. Cannot connect to service. |
8300003 | System internal error. |
8300999 | Unknown error code. |
Example
import data from '@ohos.telephony.data';
observer.on('cellularDataFlowChange', (data: data.DataFlowType) => {
console.log("on cellularDataFlowChange, data:" + JSON.stringify(data));
});
observer.on('cellularDataFlowChange')7+
on(type: 'cellularDataFlowChange', options: ObserverOptions, callback: Callback<DataFlowType>): void
Registers an observer for the uplink and downlink data flow status change events of the cellular data service on the SIM card in the specified slot. This API uses an asynchronous callback to return the result.
System capability: SystemCapability.Telephony.StateRegistry
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
type | string | Yes | Cellular data flow change event. This field has a fixed value of cellularDataFlowChange. |
options | ObserverOptions | Yes | Event subscription parameters. |
callback | Callback<DataFlowType> | Yes | Callback used to return the result. For details, see DataFlowType. |
Error codes
For details about the error codes, see Telephony Error Codes.
ID | Error Message |
---|---|
401 | Parameter error. |
8300001 | Invalid parameter value. |
8300002 | Operation failed. Cannot connect to service. |
8300003 | System internal error. |
8300999 | Unknown error code. |
Example
import data from '@ohos.telephony.data';
let options: observer.ObserverOptions = {
slotId: 0
}
observer.on('cellularDataFlowChange', options, (data: data.DataFlowType) => {
console.log("on cellularDataFlowChange, data:" + JSON.stringify(data));
});
observer.off('cellularDataFlowChange')7+
off(type: 'cellularDataFlowChange', callback?: Callback<DataFlowType>): void
Unregisters the observer for the uplink and downlink data flow status change events of the cellular data service. This API uses an asynchronous callback to return the result.
NOTE
You can pass the callback of the on function if you want to cancel listening for a certain type of event. If you do not pass the callback, you will cancel listening for all events.
System capability: SystemCapability.Telephony.StateRegistry
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
type | string | Yes | Cellular data flow change event. This field has a fixed value of cellularDataFlowChange. |
callback | Callback<DataFlowType> | No | Callback used to return the result. For details, see DataFlowType. |
Error codes
For details about the error codes, see Telephony Error Codes.
ID | Error Message |
---|---|
401 | Parameter error. |
8300001 | Invalid parameter value. |
8300002 | Operation failed. Cannot connect to service. |
8300003 | System internal error. |
8300999 | Unknown error code. |
Example
import data from '@ohos.telephony.data';
let callback: (data: data.DataFlowType) => void = (data: data.DataFlowType) => {
console.log("on cellularDataFlowChange, data:" + JSON.stringify(data));
}
observer.on('cellularDataFlowChange', callback);
// You can pass the callback of the on method to cancel listening for a certain type of callback. If you do not pass the callback, you will cancel listening for all callbacks.
observer.off('cellularDataFlowChange', callback);
observer.off('cellularDataFlowChange');
observer.on('simStateChange')7+
on(type: 'simStateChange', callback: Callback<SimStateData>): void
Registers an observer for SIM card status change events. This API uses an asynchronous callback to return the result.
System capability: SystemCapability.Telephony.StateRegistry
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
type | string | Yes | SIM status change event. This field has a fixed value of simStateChange. |
callback | Callback<SimStateData> | Yes | Callback used to return the result. |
Error codes
For details about the error codes, see Telephony Error Codes.
ID | Error Message |
---|---|
401 | Parameter error. |
8300001 | Invalid parameter value. |
8300002 | Operation failed. Cannot connect to service. |
8300003 | System internal error. |
8300999 | Unknown error code. |
Example
observer.on('simStateChange', (data: observer.SimStateData) => {
console.log("on simStateChange, data:" + JSON.stringify(data));
});
observer.on('simStateChange')7+
on(type: 'simStateChange', options: ObserverOptions, callback: Callback<SimStateData>): void
Registers an observer for status change events of the SIM card in the specified slot. This API uses an asynchronous callback to return the result.
System capability: SystemCapability.Telephony.StateRegistry
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
type | string | Yes | SIM status change event. This field has a fixed value of simStateChange. |
options | ObserverOptions | Yes | Event subscription parameters. |
callback | Callback<SimStateData> | Yes | Callback used to return the result. |
Error codes
For details about the error codes, see Telephony Error Codes.
ID | Error Message |
---|---|
401 | Parameter error. |
8300001 | Invalid parameter value. |
8300002 | Operation failed. Cannot connect to service. |
8300003 | System internal error. |
8300999 | Unknown error code. |
Example
let options: observer.ObserverOptions = {
slotId: 0
}
observer.on('simStateChange', options, (data: observer.SimStateData) => {
console.log("on simStateChange, data:" + JSON.stringify(data));
});
observer.off('simStateChange')7+
off(type: 'simStateChange', callback?: Callback<SimStateData>): void
Unregisters the observer for SIM card status change events. This API uses an asynchronous callback to return the result.
NOTE
You can pass the callback of the on function if you want to cancel listening for a certain type of event. If you do not pass the callback, you will cancel listening for all events.
System capability: SystemCapability.Telephony.StateRegistry
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
type | string | Yes | SIM status change event. This field has a fixed value of simStateChange. |
callback | Callback<SimStateData> | No | Callback used to return the result. |
Error codes
For details about the error codes, see Telephony Error Codes.
ID | Error Message |
---|---|
401 | Parameter error. |
8300001 | Invalid parameter value. |
8300002 | Operation failed. Cannot connect to service. |
8300003 | System internal error. |
8300999 | Unknown error code. |
Example
let callback: (data: observer.SimStateData) => void = (data: observer.SimStateData) => {
console.log("on simStateChange, data:" + JSON.stringify(data));
}
observer.on('simStateChange', callback);
// You can pass the callback of the on method to cancel listening for a certain type of callback. If you do not pass the callback, you will cancel listening for all callbacks.
observer.off('simStateChange', callback);
observer.off('simStateChange');
observer.on('iccAccountInfoChange')10+
on(type: 'iccAccountInfoChange', callback: Callback<void>): void
Registers an observer for account information change events of the SIM card. This API uses an asynchronous callback to return the result.
System capability: SystemCapability.Telephony.StateRegistry
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
type | string | Yes | Account information change event. This field has a fixed value of iccAccountInfoChange. |
callback | Callback<void> | Yes | Callback used to return the result. |
Error codes
For details about the error codes, see Telephony Error Codes.
ID | Error Message |
---|---|
401 | Parameter error. |
8300001 | Invalid parameter value. |
8300002 | Operation failed. Cannot connect to service. |
8300003 | System internal error. |
8300999 | Unknown error code. |
Example
observer.on('iccAccountInfoChange', () => {
console.log("on iccAccountInfoChange success");
});
observer.off('iccAccountInfoChange')10+
off(type: 'iccAccountInfoChange', callback?: Callback<void>): void
Unregisters the observer for account information change events of the SIM card. This API uses an asynchronous callback to return the result.
NOTE
You can pass the callback of the on function if you want to cancel listening for a certain type of event. If you do not pass the callback, you will cancel listening for all events.
System capability: SystemCapability.Telephony.StateRegistry
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
type | string | Yes | Account information change event. This field has a fixed value of iccAccountInfoChange. |
callback | Callback<void> | No | Callback used to return the result. |
Error codes
For details about the error codes, see Telephony Error Codes.
ID | Error Message |
---|---|
401 | Parameter error. |
8300001 | Invalid parameter value. |
8300002 | Operation failed. Cannot connect to service. |
8300003 | System internal error. |
8300999 | Unknown error code. |
Example
let callback: () => void = () => {
console.log("on iccAccountInfoChange success");
}
observer.on('iccAccountInfoChange', callback);
// You can pass the callback of the on method to cancel listening for a certain type of callback. If you do not pass the callback, you will cancel listening for all callbacks.
observer.off('iccAccountInfoChange', callback);
observer.off('iccAccountInfoChange');
LockReason8+
Enumerates SIM card lock types.
System capability: SystemCapability.Telephony.StateRegistry
Name | Value | Description |
---|---|---|
SIM_NONE | 0 | No lock. |
SIM_PIN | 1 | PIN lock. |
SIM_PUK | 2 | PUK lock. |
SIM_PN_PIN | 3 | Network PIN lock. |
SIM_PN_PUK | 4 | Network PUK lock. |
SIM_PU_PIN | 5 | Subnet PIN lock. |
SIM_PU_PUK | 6 | Subnet PUK lock. |
SIM_PP_PIN | 7 | Service provider PIN lock. |
SIM_PP_PUK | 8 | Service provider PUK lock. |
SIM_PC_PIN | 9 | Organization PIN lock. |
SIM_PC_PUK | 10 | Organization PUK lock. |
SIM_SIM_PIN | 11 | SIM PIN lock. |
SIM_SIM_PUK | 12 | SIM PUK lock. |
SimStateData7+
Enumerates SIM card types and states.
System capability: SystemCapability.Telephony.StateRegistry
Name | Type | Mandatory | Description |
---|---|---|---|
type | CardType | Yes | SIM card type. |
state | SimState | Yes | SIM card state. |
reason8+ | LockReason | Yes | SIM card lock type. |
CallStateInfo11+
Defines information about the call status.
System capability: SystemCapability.Telephony.StateRegistry
Name | Type | Mandatory | Description |
---|---|---|---|
state | CallState | Yes | Call type. |
number | string | Yes | Phone number. |
DataConnectionStateInfo11+
Defines information about the data connection status.
System capability: SystemCapability.Telephony.StateRegistry
Name | Type | Mandatory | Description |
---|---|---|---|
state | DataConnectState | Yes | Data connection status. |
network | RatType | Yes | Network type. |
ObserverOptions11+
Defines event subscription parameters.
System capability: SystemCapability.Telephony.StateRegistry
Name | Type | Mandatory | Description |
---|---|---|---|
slotId | number | Yes | Card slot ID. - 0: card slot 1 - 1: card slot 2 |