RadioData QML 类型

从 QML 应用程序访问 RDS 数据。更多...

import 语句：	import QtMultimedia 5.12
继承：	Item

所有成员列表，包括继承成员

特性

alternativeFrequenciesEnabled : bool
availability : enumeration
programType : enumeration
programTypeName : string
radioText : string
stationId : string
stationName : string

详细描述

RadioData is your gateway to all the data available through RDS. RDS is the Radio Data System which allows radio stations to broadcast information like the stationId , programType , programTypeName , stationName ，和 radioText . This information can be read from the RadioData . It also allows you to set whether the radio should tune to alternative frequencies if the current signal strength falls too much.

Rectangle {
    width: 480
    height: 320
    Radio {
        id: radio
        band: Radio.FM
    }
    Column {
        Text {
            text: radio.radioData.stationName
        }
        Text {
            text: radio.radioData.programTypeName
        }
        Text {
            text: radio.radioData.radioText
        }
    }
}

You use RadioData together with a Radio , either by accessing the radioData property of the Radio, or creating a separate RadioData . The properties of the RadioData type will reflect the information broadcast by the radio station the Radio is currently tuned to.

另请参阅 无线电概述 .

特性文档编制

alternativeFrequenciesEnabled : bool

This property allows you to specify whether the radio should try and tune to alternative frequencies if the signal strength of the current station becomes too weak. The alternative frequencies are emitted over RDS by the radio station, and the tuning happens automatically.

availability : enumeration

Returns the availability state of the radio data interface.

This is one of:

值	描述
Available	The radio data interface is available to use
Busy	The radio data interface is usually available to use, but is currently busy.
Unavailable	The radio data interface is not available to use (there may be no radio hardware)
ResourceMissing	There is one or more resources missing, so the radio cannot be used. It may be possible to try again at a later time.

programType : enumeration

This property holds the type of the currently playing program as transmitted by the radio station. The value can be any one of the values defined in the table below.

值
Undefined
新闻
CurrentAffairs
信息
Sport
Education
Drama
Culture
Science
Varied
PopMusic
RockMusic
EasyListening
LightClassical
SeriousClassical
OtherMusic
Weather
Finance
ChildrensProgrammes
SocialAffairs
Religion
PhoneIn
Travel
Leisure
JazzMusic
CountryMusic
NationalMusic
OldiesMusic
FolkMusic
Documentary
AlarmTest
闹钟
Talk
ClassicRock
AdultHits
SoftRock
Top40
Soft
Nostalgia
Classical
RhythmAndBlues
SoftRhythmAndBlues
语言
ReligiousMusic
ReligiousTalk
Personality
Public
College

programTypeName : string

This property holds a string representation of the programType .

radioText : string

This property holds free-text transmitted by the radio station. This is typically used to show supporting information for the currently playing content, for instance song title or artist name.

stationId : string

This property allows you to read the station Id of the currently tuned radio station.

stationName : string

This property has the name of the currently tuned radio station.