从iPhone的历代机型配置中，可以看出在iPhone6及以上机型都拥有了支持NFC功能的固件，但是一直不开放给开发者使用，直到iOS11才开放仅有的具有读取NDEF格式的功能，并且需要iPhone7或者iPhone7 Plus以上的机型才支持使用。干货来了.........
1、配置开发证书记得选上标记项
2.在TARGETS>Capabilities中打开Near Field Communication
3.在TARGETS>Info中配置NFC使用说明
4.代码逻辑
导入#import <CoreNFC/CoreNFC.h>
#import "ViewController.h"
#import <SVProgressHUD.h>
#import <CoreNFC/CoreNFC.h>
@interface ViewController ()<NFCNDEFReaderSessionDelegate>
@property (nonatomic, strong) NFCNDEFReaderSession *session;
@property (weak, nonatomic) IBOutlet UILabel *myLabel;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
UIButton *queryBtn = [UIButton buttonWithType:UIButtonTypeCustom];
queryBtn.frame = CGRectMake(50, 50, 100, 40);
queryBtn.backgroundColor = [UIColor redColor];
[queryBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[queryBtn setTitle:@"开始查询" forState:UIControlStateNormal];
[queryBtn addTarget:self action:@selector(ClickQuery) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:queryBtn];
UIButton *endQueryBtn = [UIButton buttonWithType:UIButtonTypeCustom];
endQueryBtn.frame = CGRectMake(200, 50, 100, 40);
endQueryBtn.backgroundColor = [UIColor redColor];
[endQueryBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[endQueryBtn setTitle:@"结束查询" forState:UIControlStateNormal];
[endQueryBtn addTarget:self action:@selector(ClickEndQuery) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:endQueryBtn];
}
#pragma mark -- 开始查询
-(void)ClickQuery{
//如果希望读取多个标签invalidateAfterFirstRead设置为NO
self.session = [[NFCNDEFReaderSession alloc] initWithDelegate:self queue:dispatch_queue_create(NULL, DISPATCH_QUEUE_CONCURRENT) invalidateAfterFirstRead:YES];
NSLog(@"%@",[NSThread currentThread]);
[self.session beginSession];
}
#pragma mark -- 结束查询
-(void)ClickEndQuery{
[SVProgressHUD setBackgroundColor:[UIColor blackColor]];
[SVProgressHUD setForegroundColor:[UIColor whiteColor]];
[SVProgressHUD showWithStatus:@"结束查询"];
[SVProgressHUD dismissWithDelay:1.0];
[self.session invalidateSession];
}
#pragma mark -- <NFCNDEFReaderSessionDelegate>
//扫描到的回调
-(void)readerSession:(NFCNDEFReaderSession *)session didDetectNDEFs:(NSArray<NFCNDEFMessage *> *)messages{
for (NFCNDEFMessage *message in messages) {
for (NFCNDEFPayload *payload in message.records) {
NSLog(@"Payload data=%@",payload.payload);
NSString *str = [[NSString alloc] initWithData:payload.payload encoding:NSUTF8StringEncoding];
//回到主线程
[[NSOperationQueue mainQueue] addOperationWithBlock:^{
[self.myLabel setText:str];
}];
}
}
}
//错误回调
-(void)readerSession:(NFCNDEFReaderSession *)session didInvalidateWithError:(NSError *)error{
NSLog(@"error = %@", error);
}
@end
5.下面是操作效果图！老铁记得准备标签啊
