Class ImageCache

Hierarchy

Observable

Index

Constructors

constructor

Properties

Methods

Constructors

constructor

new ImageCache(): ImageCache

Inherited from Observable.constructor
- Defined in nativescript-core.d.ts:4422
Returns ImageCache

Properties

Private _isViewBase

_isViewBase: boolean

maxRequests

maxRequests: number

placeholder

placeholder: ImageSource

Static downloadErrorEvent

downloadErrorEvent: string

Static downloadedEvent

downloadedEvent: string

Static propertyChangeEvent

propertyChangeEvent: string

Methods

Private _createPropertyChangeData

_createPropertyChangeData(name: string, value: any, oldValue?: any): PropertyChangeData

Inherited from Observable._createPropertyChangeData
- Defined in nativescript-core.d.ts:4514
Parameters
- name: string
- value: any
- Optional oldValue: any
Returns PropertyChangeData

Private _downloadCore

_downloadCore(request: DownloadRequest): any

- Defined in nativescript-core.d.ts:3105
Parameters
- request: DownloadRequest
Returns any

Private _emit

_emit(eventNames: string): any

Inherited from Observable._emit
- Defined in nativescript-core.d.ts:4526
Parameters
- eventNames: string
Returns any

Private _onDownloadCompleted

_onDownloadCompleted(key: string, image: any): any

- Defined in nativescript-core.d.ts:3109
Parameters
- key: string
- image: any
Returns any

Private _onDownloadError

_onDownloadError(key: string, err: Error): any

- Defined in nativescript-core.d.ts:3114
Parameters
- key: string
- err: Error
Returns any

addEventListener

addEventListener(eventNames: string, callback: function, thisArg?: any): any

Inherited from Observable.addEventListener
- Defined in nativescript-core.d.ts:4467
Parameters
- eventNames: string
- callback: function
  - - (data: EventData): void
    - Parameters
      - data: EventData
      Returns void
- Optional thisArg: any
Returns any

clear

clear(): void

- Defined in nativescript-core.d.ts:3081
Returns void

disableDownload

disableDownload(): void

- Defined in nativescript-core.d.ts:3055
Returns void

enableDownload

enableDownload(): void

- Defined in nativescript-core.d.ts:3051
Returns void

enqueue

enqueue(request: DownloadRequest): any

- Defined in nativescript-core.d.ts:3064
Parameters
- request: DownloadRequest
Returns any

get

get(key: string): any

Overwrites Observable.get
- Defined in nativescript-core.d.ts:3069
Parameters
- key: string
Returns any

hasListeners

hasListeners(eventName: string): boolean

Inherited from Observable.hasListeners
- Defined in nativescript-core.d.ts:4507
Parameters
- eventName: string
Returns boolean

notify

notify<T>(data: T): void

Inherited from Observable.notify
- Defined in nativescript-core.d.ts:4496
Type parameters
- T: EventData
Parameters
- data: T
Returns void

notifyPropertyChange

notifyPropertyChange(propertyName: string, value: any, oldValue?: any): void

Inherited from Observable.notifyPropertyChange
- Defined in nativescript-core.d.ts:4501
Parameters
- propertyName: string
- value: any
- Optional oldValue: any
Returns void

off

off(eventNames: string, callback?: any, thisArg?: any): any

Inherited from Observable.off
- Defined in nativescript-core.d.ts:4459
Parameters
- eventNames: string
- Optional callback: any
- Optional thisArg: any
Returns any

on

on(eventNames: string, callback: function, thisArg?: any): any
on(event: "downloaded", callback: function, thisArg?: any): any
on(event: "downloadError", callback: function, thisArg?: any): any

Overwrites Observable.on
- Defined in nativescript-core.d.ts:3089
Parameters
- eventNames: string
- callback: function
  - - (args: EventData): void
    - Parameters
      - args: EventData
      Returns void
- Optional thisArg: any
Returns any
Overwrites Observable.on
- Defined in nativescript-core.d.ts:3094
Parameters
- event: "downloaded"
- callback: function
  - - (args: DownloadedData): void
    - Parameters
      - args: DownloadedData
      Returns void
- Optional thisArg: any
Returns any
Overwrites Observable.on
- Defined in nativescript-core.d.ts:3099
Parameters
- event: "downloadError"
- callback: function
  - - (args: DownloadError): void
    - Parameters
      - args: DownloadError
      Returns void
- Optional thisArg: any
Returns any

once

once(event: string, callback: function, thisArg?: any): any

Inherited from Observable.once
- Defined in nativescript-core.d.ts:4454
Parameters
- event: string
- callback: function
  - - (data: EventData): void
    - Parameters
      - data: EventData
      Returns void
- Optional thisArg: any
Returns any

push

push(request: DownloadRequest): any

- Defined in nativescript-core.d.ts:3060
Parameters
- request: DownloadRequest
Returns any

remove

remove(key: string): void

- Defined in nativescript-core.d.ts:3077
Parameters
- key: string
Returns void

removeEventListener

removeEventListener(eventNames: string, callback?: any, thisArg?: any): any

Inherited from Observable.removeEventListener
- Defined in nativescript-core.d.ts:4475
Parameters
- eventNames: string
- Optional callback: any
- Optional thisArg: any
Returns any

set

set(key: string, image: any): void

Overwrites Observable.set
- Defined in nativescript-core.d.ts:3073
Parameters
- key: string
- image: any
Returns void

setProperty

setProperty(name: string, value: any): void

Inherited from Observable.setProperty
- Defined in nativescript-core.d.ts:4485
Parameters
- name: string
- value: any
Returns void

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