語言

PrinterDiscoverySession.OnRequestCustomPrinterIcon 方法

定義

系統呼叫它來請求印表機的自訂圖示。

[Android.Runtime.Register("onRequestCustomPrinterIcon", "(Landroid/print/PrinterId;Landroid/os/CancellationSignal;Landroid/printservice/CustomPrinterIconCallback;)V", "GetOnRequestCustomPrinterIcon_Landroid_print_PrinterId_Landroid_os_CancellationSignal_Landroid_printservice_CustomPrinterIconCallback_Handler", ApiSince=24)]
public virtual void OnRequestCustomPrinterIcon(Android.Print.PrinterId printerId, Android.OS.CancellationSignal cancellationSignal, Android.PrintServices.CustomPrinterIconCallback callback);
[<Android.Runtime.Register("onRequestCustomPrinterIcon", "(Landroid/print/PrinterId;Landroid/os/CancellationSignal;Landroid/printservice/CustomPrinterIconCallback;)V", "GetOnRequestCustomPrinterIcon_Landroid_print_PrinterId_Landroid_os_CancellationSignal_Landroid_printservice_CustomPrinterIconCallback_Handler", ApiSince=24)>]
abstract member OnRequestCustomPrinterIcon : Android.Print.PrinterId * Android.OS.CancellationSignal * Android.PrintServices.CustomPrinterIconCallback -> unit
override this.OnRequestCustomPrinterIcon : Android.Print.PrinterId * Android.OS.CancellationSignal * Android.PrintServices.CustomPrinterIconCallback -> unit

參數

printerId
PrinterId

印表機圖示屬於 。

cancellationSignal
CancellationSignal

用來取消請求的訊號。

callback
CustomPrinterIconCallback

回調回傳將圖示回系統。

屬性

備註

系統呼叫它來請求印表機的自訂圖示。 一旦圖示可用,印刷服務就會將 CustomPrinterIconCallback#onCustomPrinterIconLoaded 圖示傳送到系統。

Java 文件 android.printservice.PrinterDiscoverySession.onRequestCustomPrinterIcon(android.print.PrinterId, android.os.CancellationSignal, android.printservice.CustomPrinterIconCallback)。

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