是否从ios应用程序通过蓝牙打印机打印？

从我的应用程序通过蓝牙打印机打印照片

打印机已通过蓝牙连接

当我点击ui按钮并打印连接到手机的照片时

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我该怎么做？

iOS不支持通过蓝牙打印。它支持通过AirPrint使用WiFi打印

- (void)callPrintPDF {
UIPrintInfo *printInfo = [UIPrintInfo printInfo];
printInfo.outputType = UIPrintInfoOutputGeneral;
UIPrintInteractionController *pic = [UIPrintInteractionController sharedPrintController];
pic.delegate = self;
pic.printInfo = printInfo;
NSURL *url = [NSURL URLWithString:self.strPDFUrl];
pic.printingItem = url;

void (^completionHandler)(UIPrintInteractionController *, BOOL, NSError *) =
    ^(UIPrintInteractionController *printController, BOOL completed, NSError *error) {
    if (!completed && error) {
        NSLog(@"Printing could not complete because of error: %@", error);
    }
};
[pic presentAnimated:YES completionHandler:completionHandler];
}

支持的AirPrinter列表。

下面是一个使用AirPrint打印PDF的示例

- (void)callPrintPDF {
UIPrintInfo *printInfo = [UIPrintInfo printInfo];
printInfo.outputType = UIPrintInfoOutputGeneral;
UIPrintInteractionController *pic = [UIPrintInteractionController sharedPrintController];
pic.delegate = self;
pic.printInfo = printInfo;
NSURL *url = [NSURL URLWithString:self.strPDFUrl];
pic.printingItem = url;

void (^completionHandler)(UIPrintInteractionController *, BOOL, NSError *) =
    ^(UIPrintInteractionController *printController, BOOL completed, NSError *error) {
    if (!completed && error) {
        NSLog(@"Printing could not complete because of error: %@", error);
    }
};
[pic presentAnimated:YES completionHandler:completionHandler];
}

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给我一些例子链接，直接从中学习，你自己没有做的原因是。。。。？