iOS UIPrintInteractionController打印-白红宇

iOS UIPrintInteractionController打印

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发布时间：2019-06-13

本文共 3612 字，大约阅读时间需要 12 分钟。

- (void)printData{    //为打印做准备，创建一个指向sharedPrintController的引用    UIPrintInteractionController *printer = [UIPrintInteractionController sharedPrintController];    printer.delegate = self;    //配置打印信息    UIPrintInfo *Pinfo = [UIPrintInfo printInfo];    Pinfo.outputType = UIPrintInfoOutputGeneral;//可打印文本、图形、图像    Pinfo.jobName = @"Print for xiaodui";//可选属性，用于在打印中心中标识打印作业    Pinfo.duplex = UIPrintInfoDuplexLongEdge;//双面打印绕长边翻页，NONE为禁止双面    Pinfo.orientation = UIPrintInfoOrientationPortrait;//打印纵向还是横向    //    Pinfo.printerID = @"";//指定默认打印机，也可以使用UIPrintInteractionControllerDelegate来知悉    printer.printInfo = Pinfo;    //设置页面范围 打印文字//    UISimpleTextPrintFormatter *textFormatter = [[UISimpleTextPrintFormatter alloc] initWithText:@"哈护手霜按时哈哈"];//    textFormatter.startPage = 0;//指定从哪一张开始打印0代表第一张//    textFormatter.contentInsets = UIEdgeInsetsMake(36, 36, 36, 36);//72相当于1英寸，这样设置上下左右的边距都为0.5英寸//    textFormatter.maximumContentWidth = 504;//(72x7.5)相当于打印宽度为7英寸//    printer.printFormatter = textFormatter;

AirPrint可以直接打印一些内容。这些内容是 NSData, NSURL, UIImage, and ALAsset 类的实例，但是这些实例的内容，或者引用的类型（NSURL）必须是 image 或者pdf.

对于 image来说， NSData, NSURL, UIImage, and ALAsset 类型都可以的。对于PDF，只能使用 NSData, NSURL。然后需要将这些数据实例直接赋值给 UIPrintInteractionController实例的 printingItem 或者 printingItems 属性。

// printer.printingItem = [UIImage imageNamed:@"LaunchImage"];     printer.printingItems = @[[UIImage imageNamed:@"welcome_page2"], [UIImage imageNamed:@"LaunchImage"], [UIImage imageNamed:@"welcome_page1"],];    printer.showsPageRange = NO;    [printer presentAnimated:YES completionHandler:^(UIPrintInteractionController * _Nonnull printInteractionController, BOOL completed, NSError * _Nullable error) {        if (!completed && error) {            NSLog(@"Error");        }    }];}

打印webView视图

初始化webView

- (UIWebView *)printWebView{    if (!_printWebView) {        _printWebView = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, Main_Screen_Width, Main_Screen_Height)];        _printWebView.backgroundColor = HexRGB(0xf9f9f9);        _printWebView.delegate = self;        _printWebView.scalesPageToFit = YES;    } return _printWebView;}

加载视图

NSURL *url = [NSURL URLWithString:@"https://www.baidu.com"];    NSURLRequest *request = [NSURLRequest requestWithURL:url];    [self.printWebView loadRequest:request];

在加载完成中调用打印方法

- (void)webViewDidFinishLoad:(UIWebView *)webView{    [self printWebViewPage];}- (void)printWebViewPage{    UIPrintInteractionController *controller = [UIPrintInteractionController sharedPrintController];    void (^completionHandler)(UIPrintInteractionController *, BOOL, NSError *) =    ^(UIPrintInteractionController *printController, BOOL completed, NSError *error) {        if(error){            NSLog(@"FAILED! due to error in domain %@ with error code %ld-- %@",                  error.domain, (long)error.code, completionHandler);        }    };    UIPrintInfo *printInfo = [UIPrintInfo printInfo];    printInfo.outputType = UIPrintInfoOutputGeneral;    printInfo.jobName = @"Print for xiaodui";;    printInfo.duplex = UIPrintInfoDuplexLongEdge;    controller.printInfo = printInfo;    controller.showsPageRange = YES;       UIViewPrintFormatter *viewFormatter = [self.printWebView viewPrintFormatter];    viewFormatter.startPage = 0;    controller.printFormatter = viewFormatter;        [controller presentAnimated:YES completionHandler:^(UIPrintInteractionController * _Nonnull printInteractionController, BOOL completed, NSError * _Nullable error) {
    if (!completed && error) {            NSLog(@"Error");        }    }];}

如图: