我有一台Shearwell棒读取器，通过BLE读取牛标签，羊标签和山羊标签。连接BLE设备时，设备列表显示在SDLBluetoothConnectViewController的tableView中，然后消失。我也无法使用segue从设备中获取信息。蓝牙图标闪烁3次，不与设备配对。任何人都可以看到我的错误在哪里，我已经看了几个小时！提前谢谢！
这是SDLStickreader.m
query!.whereKey(etc)和我的SDLBluetoothConnectViewController.m
// A StickReader is a wrapper for a CBPeripheral that has been discovered using a filter for StickReader UUID.
#import "SDLStickReader.h"
#import "SDLStickReaderManager.h"
#import "SDLStickReaderPrivate.h"
#import "SDLSerialPort.h"
//#import "SDLIdentifier.h"
@interface SDLStickReader () <SerialPortDelegate>
@property (strong, nonatomic) CBPeripheral *peripheral;
@end
@implementation SDLStickReader
static SDLStickReaderManager * _manager;
NSMutableData *_data;
SDLSerialPort *serialPort;
BOOL waitingForConfigInfo = YES;
NSMutableString *configString;
+(SDLStickReaderManager *)manager {
if (nil == _manager) {
_manager = [[SDLStickReaderManager alloc] init];
}
return _manager;
}
+ (instancetype)forPeripheral: (CBPeripheral *)peripheral {
return [[self alloc] initWithPeripheral:peripheral];
}
- (instancetype)initWithPeripheral: (CBPeripheral *)peripheral {
self = [super init];
if (self) {
_detail = @"";
self.peripheral = peripheral;
//peripheral.delegate = self;
__tagReadService = [CBUUID UUIDWithString:SDL_STICKREADER_TAGREAD_UUID];
if (peripheral.state == CBPeripheralStateConnected) {
NSLog(@"periperal is connected");
} else {
NSLog(@"periperal is NOT connected");
}
_data = [[NSMutableData alloc] init];
serialPort = [[SDLSerialPort alloc] initWithPeripheral:peripheral andDelegate:self];
peripheral.delegate = self;
[serialPort open ];
}
return self;
}
-(BOOL)hasPeripheral: (CBPeripheral *)peripheral {
return [self.peripheral isEqual: peripheral];
}
-(NSUUID *)identifier {
return self.peripheral.identifier;
}
-(NSString *)name {
return self.peripheral.name;
}
-(NSString *)description {
return [NSString stringWithFormat: @"Peripheral: %@", self.name];
}
-(NSString *)state {
switch (self.peripheral.state) {
case CBPeripheralStateConnected:
return SDL_STICKREADER_STATE_CONNECTED;
case CBPeripheralStateConnecting:
return SDL_STICKREADER_STATE_CONNECTING;
case CBPeripheralStateDisconnected:
return SDL_STICKREADER_STATE_DISCONNECTED;
}
}
// Every time the peripheral sends new data, it calls the delegate peripheral:didUpdateValueForCharacteristic:error: method. The second argument contains the characteristic that you can read.
- (void)peripheral:(CBPeripheral *)peripheral didUpdateValueForCharacteristic: (CBCharacteristic *)characteristic error:(NSError *)error {
if (error) {
NSLog(@"Error");
return;
}
if ([self.characteristics containsObject: characteristic.UUID]) {
NSString *stringFromData = [[NSString alloc] initWithData:characteristic.value encoding:NSUTF8StringEncoding];
// Have we got everything we need?
NSUInteger startOfEom = [stringFromData rangeOfString: SDL_STICKREADER_EOM].location;
if (NSNotFound == startOfEom) {
// it is not the EOM so append the data to what we have so far and wait for more.
[_data appendData: characteristic.value];
} else {
// contains EOM, so remove the
NSString *lastPart = [stringFromData substringToIndex:startOfEom];
NSString *message = [[NSString alloc] initWithData: _data encoding:NSUTF8StringEncoding];
if (nil != lastPart && lastPart.length > 0) {
message = [message stringByAppendingString:lastPart];
}
if (nil != self.listener) {
[self.listener stickReader:self didReadTag:message];
}
[_data setLength:0];
}
}
}
// Method that ensures that the CBCentral knows when a notification state for a given characteristic changes. Track it in order to understand when a characteristic state changes (update app values). You should check if the characteristic notification has stopped. If it has, you should disconnect from it:
- (void)peripheral:(CBPeripheral *)peripheral didUpdateNotificationStateForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error {
if (![self.characteristics containsObject: characteristic.UUID]) {
return;
}
if (characteristic.isNotifying) {
NSLog(@"Notification began ");
} else {
// Notification has stopped
NSLog(@"Notification stopped ");
//[_manager cancelPeripheralConnection:peripheral];
}
}
/////////////////////////////////////////////////////////////////////////////////////
- (void) port: (SDLSerialPort*) serialPort event : (SPEvent) ev error: (NSInteger)err {
if (SP_EVT_OPEN == ev) {
//NSLog(@"serialPortOpened");
configString = [[NSMutableString alloc] init];
[serialPort write: [@"c\r" dataUsingEncoding: NSUTF8StringEncoding]];
} else {
NSLog(@"serialPortClosed");
}
}
- (void) writeComplete: (SDLSerialPort*) serialPort withError: (NSInteger)err {
NSLog(@"writeComplete");
}
- (void) port: (SDLSerialPort*) serialPort receivedData: (NSData*)data {
if (data.length > 0) {
NSCharacterSet *charSet = [NSCharacterSet characterSetWithCharactersInString: @"|()#"];
NSString *str = [[NSString alloc] initWithData: data encoding: NSUTF8StringEncoding];
NSLog(@"receivedData: %@", str);
if ([str hasPrefix: @"Shearwell"]) {
_detail = str;
//NSLog(@"updating: %@", str);
[[SDLStickReader manager] addedShearwellStickReader: self];
} else if (NSNotFound != [str rangeOfCharacterFromSet: charSet].location ) {
// Data
if (waitingForConfigInfo) {
[configString appendString:str];
if (NSNotFound != [configString rangeOfString: @"(cS)"].location) {
// got end of config string, parse config.
NSRange found = [configString rangeOfString: @"#18|"];
if (NSNotFound != found.location) {
NSRange getRange = NSMakeRange(found.location + found.length, 1);
NSString *str = [configString substringWithRange: getRange];
self.eidFormat = [str integerValue];
NSLog(@"StickReader format: %d", self.eidFormat);
}
waitingForConfigInfo = NO;
[serialPort write: [@"v\r" dataUsingEncoding: NSUTF8StringEncoding]];
}
} else {
// Users data
[self.listener stickReader:self didReadData: str];
}
} else {
// Tag
if (nil != self.listener) {
[self.listener stickReader:self didReadTag: str];
}
}
}
}