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iOS设备控制打印机输出文本

2024-08-01 00:00:30   222人阅读

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让我们来看看是如何实现的吧，首先要知道打印机的ip地址，然后用socket通过打印机的ip地址进行传送要打印的内容，并传送让打印机打印的指令即可。

代码如下：

.h 里面

  1. #import
  2. #import "AsyncSocket.h"
  3. @interface ViewController : UIViewController
  4. {
  5. AsyncSocket *asyncSocket;
  6. }
  7. @end

 

.m里面

  1. #import "ViewController.h"
  2. @interface ViewController ()
  3. @end
  4. @implementation ViewController
  5. - (void)viewDidLoad {
  6. [super viewDidLoad];
  7. // NSError *err = nil;
  8. // if(![asyncSocket connectToHost:@"192.168.1.105" onPort:18011 error:&err])
  9. // {
  10. // asyncSocket = [[AsyncSocket alloc] initWithDelegate:self];
  11. //
  12. // [asyncSocket setRunLoopModes:[NSArray arrayWithObject:NSRunLoopCommonModes]];
  13. //
  14. // if (![self SocketOpen:@"192.168.1.105" port:18011])
  15. // {
  16. // NSMutableString *sendString=[NSMutableString stringWithCapacity:1000];
  17. // [sendString appendString:@"非警务健身房"];
  18. // NSData *cmdData = http://www.mamicode.com/[sendString dataUsingEncoding:NSUTF8StringEncoding];
  19. //
  20. // [asyncSocket writeData:cmdData withTimeout:-1 tag:0];
  21. // }
  22. // NSLog(@"Error: %@", err);
  23. // }
  24. }
  25. -(IBAction)haha:(id)sender{
  26. asyncSocket=nil;
  27. NSError *err = nil;
  28. if(![asyncSocket connectToHost:@"192.168.1.105" onPort:18011 error:&err])
  29. {
  30. asyncSocket = [[AsyncSocket alloc] initWithDelegate:self];
  31. [asyncSocket setRunLoopModes:[NSArray arrayWithObject:NSRunLoopCommonModes]];
  33. if (![self SocketOpen:@"192.168.1.105" port:18011])
  34. {
  35. NSMutableString *sendString=[NSMutableString stringWithCapacity:100000];
  36. [sendString appendString:@"Socket测试成功！！！！"];
  37. NSData *cmdData = [sendString dataUsingEncoding:NSUTF8StringEncoding];
  38. [asyncSocket writeData:cmdData withTimeout:-1 tag:0];
  39. }
  40. NSLog(@"Error: %@", err);
  41. }
  42. }
  43. - (void)onSocket:(AsyncSocket *)sock didConnectToHost:(NSString *)host port:(UInt16)port
  44. {
  45. NSLog(@"onSocket:%p didConnectToHost:%@ port:%hu", sock, host, port);
  46. [sock readDataWithTimeout:1 tag:0];
  47. }
  48. -(void) onSocket:(AsyncSocket *)sock didReadData:(NSData *)data withTag:(long)tag
  49. {
  50. }
  51. - (void)onSocket:(AsyncSocket *)sock didSecure:(BOOL)flag
  52. {
  53. NSLog(@"onSocket:%p didSecure:YES", sock);
  54. }
  55. - (void)onSocket:(AsyncSocket *)sock willDisconnectWithError:(NSError *)err
  56. {
  57. NSLog(@"onSocket:%p willDisconnectWithError:%@", sock, err);
  58. }
  59. - (void)onSocketDidDisconnect:(AsyncSocket *)sock
  60. {
  61. //断开连接了
  62. NSLog(@"onSocketDidDisconnect:%p", sock);
  63. }
  64. - (void)didReceiveMemoryWarning {
  65. [super didReceiveMemoryWarning];
  66. }
  67. - (void)viewDidUnload {
  68. asyncSocket=nil;
  69. }
  70. //打开
  71. - (NSInteger)SocketOpen:(NSString*)addr port:(NSInteger)port
  72. {
  73. if (![asyncSocket isConnected])
  74. {
  75. [asyncSocket connectToHost:addr onPort:port withTimeout:-1 error:nil];
  76. NSLog(@"connect to Host:%@ Port:%d",addr,port);
  77. }
  78. return 0;
  79. }

其他的方法，还有利用UIPrintInteractionController，不过这需要打印机设置中有AirPrinter。

iOS设备控制打印机输出文本


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