读取状态

GeliBusinessPlatform/Define/Bridge_Header.h

@@ -30,4 +30,7 @@
 #import "HLBLEManager.h"
 #import "SVProgressHUD.h"
 #import "BtViewController.h"
+#import "HLPrinter.h"
+#import "UIWebView+UIImage.h"
+
 #endif /* Bridge_Header_h */

GeliBusinessPlatform/ViewController/蓝牙连接/BtViewController.m

@@ -12,6 +12,8 @@
 #import "HLPrinter.h"
 #import "UIWebView+UIImage.h"
 #import "Bt_Cell.h"
+
+
 @interface BtViewController ()<UITableViewDelegate,UITableViewDataSource>
 @property (weak, nonatomic) IBOutlet UITableView *tableView;
 @property (strong, nonatomic)NSMutableArray  *deviceArray;  /**< 蓝牙设备个数 */
@@ -26,6 +28,20 @@
     [self.navigationController popViewControllerAnimated:YES];
 }
 
+/** 接收到数据回调 */
+- (void)peripheral:(CBPeripheral *)peripheral didUpdateValueForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error {
+    NSData *data = characteristic.value; //获取到的数据
+    NSLog(@"bbb-----%@----",data); //打印出来应该是<01a5>这样的数据，可以通过下面的方式去判断一些自己想要的逻辑
+    Byte * resultByte = (Byte *)[data bytes];
+    if(data.length>=1){
+        if(resultByte[0]==16){ //16代表前两位的值
+            NSLog(@"---打印机打开---");
+        }else if (resultByte[0]==1){ //01
+            NSLog(@"----打印机缺纸-----");
+        }
+    }
+    //下面的处理方式我没处理过，大家可以试试
+}
 - (void)viewDidLoad {
     [super viewDidLoad];
     // Do any additional setup after loading the view from its nib.
@@ -128,8 +144,10 @@
         CBPeripheral *peripheral = dict[@"peripheral"];
         [self.selectArray addObject:peripheral];
         [self loadBLEInfo];
+        
         [tableView reloadData];
     }else{
+        
         [_manager cancelPeripheralConnection];
     }
 
@@ -218,6 +236,7 @@
     CBPeripheral *perpheral = _selectArray.firstObject;
     HLBLEManager *manager = [HLBLEManager sharedInstance];
     _manager = manager;
+    
     [manager connectPeripheral:perpheral
                 connectOptions:@{CBConnectPeripheralOptionNotifyOnDisconnectionKey:@(YES)}
         stopScanAfterConnected:YES