Image Resource

ImageResource

const options = {

topBar: {

leftButtons: [

icon: require('./backButton.png')

]

},

};

The following icon types are available:

Type	Required	Platform
ImageRequireSource	No	Both
string	No	Both
ImageSystemSource	No	iOS

ImageSystemSource

system

You can use platform specific system icons for iOS only.

Example:

const options = {

topBar: {

leftButtons: [

icon: {

system: 'calendar',

fallback: require('./calendar.png')

}

]

},

};

Type	Required	Platform
string	Yes	iOS 13+

fallback

Type	Required	Platform
FallbackSource	No	iOS 13+

FallbackSource

For iOS, SF Symbols is available only for iOS 13 and later. For iOS 12 and earlier you should use a fallback icon.

ImageRequireSource

Type	Required	Platform
number	No	Both

string

Type	Required	Platform
number	No	Both