本文将结合 扫一扫 官方 Demo 介绍如何在 10.1.60 及以上版本的基线中使用默认 UI 下的扫码功能和自定义 UI 下的扫码功能。
在默认 UI 下修改扫码所在页面的参数。
```objectivec
- (void)custoDefaultScan {
TBScanViewController *vc = [[MPScanCodeAdapterInterface sharedInstance] createDefaultScanPageWithallback:^(id _Nonnull result, BOOL keepAlive) {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"" message:result[@"resp_result"] delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
alert.tag = 1001;
[alert show];
}];
[self.navigationController pushViewController:vc animated:YES];
self.scanVC = vc;
// 设置扫码界面 title
vc.title = @"标准扫码";
// 设置打开手电筒提示文字
vc.torchStateNormalTitle = @"打开手电筒";
// 设置关闭手电筒提示文字
vc.torchStateSelectedTitle = @"关闭手电筒";
// 设置扫码识别类型
vc.scanType = ScanType_QRCode;
// 设置选择相册按钮
vc.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithImage:APCommonUILoadImage(@"camera") style:UIBarButtonItemStylePlain target:self action:@selector(selectPhotos)];
}
- (void)selectPhotos
{
[self.scanVC scanPhotoLibrary];
}
```
若您需要完全自定义扫码 UI 界面,可自定义扫码页并让其继承 TBScanViewController。
创建扫码页,并自定义扫码区。
@interface MPScanCodeViewController : TBScanViewController <TBScanViewControllerDelegate>
@end
@implementation MPScanCodeViewController
- (instancetype)init
{
if (self = [super init])
{
self.delegate = self;
self.scanType = ScanType_All_Code;
}
return self;
}
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
self.title = @"扫码";
// 自定义扫码界面大小
CGRect rect = [MPScanCodeViewController constructScanAnimationRect];
self.rectOfInterest = rect;
// 自定义相册按钮
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"选择相册" style:UIBarButtonItemStylePlain target:self action:@selector(selectPhoto)];
}
+ (CGRect)constructScanAnimationRect
{
CGSize screenXY = [UIScreen mainScreen].bounds.size;
NSInteger focusFrameWH = screenXY.width / 320 * 220;//as wx
int offet = 10;
if (screenXY.height == 568)
offet = 19;
return CGRectMake((screenXY.width - focusFrameWH) / 2,
(screenXY.height - 64 - focusFrameWH - 83 - 50 - offet) / 2 + 64,
focusFrameWH,
focusFrameWH);
}
-(void)buildContainerView:(UIView*)containerView
{
// 自定义扫码框 view
UIView* bg = [[UIView alloc] initWithFrame:containerView.bounds];
[containerView addSubview:bg];
CGRect rect = [MPScanCodeViewController constructScanAnimationRect];
UIView* view = [[UIView alloc] initWithFrame:rect];
view.backgroundColor = [UIColor orangeColor];
view.alpha = 0.5;
[bg addSubview:view];
}
- (void)selectPhoto
{
[self scanPhotoLibrary];
}
处理扫码结果。
-(void)didFind:(NSArray<TBScanResult*>*)resultArray
{
TBScanResult *result = resultArray.firstObject;
NSString* content = result.data;
if (result.resultType == TBScanResultTypeQRCode) {
content = [NSString stringWithFormat:@"qrcode:%@, hiddenData:%@, TBScanQRCodeResultType:%@", result.data, result.hiddenData, [result.extData objectForKey:TBScanResultTypeQRCode]];
NSLog(@"subType is %@, ScanType_QRCode is %@", @(result.subType), @(ScanType_QRCode));
} else if (result.resultType == TBScanResultTypeVLGen3Code) {
content = [NSString stringWithFormat:@"gen3:%@", result.data];
NSLog(@"subType is %@, ScanType_GEN3 is %@", @(result.subType), @(ScanType_GEN3));
} else if (result.resultType == TBScanResultTypeGoodsBarcode) {
content = [NSString stringWithFormat:@"barcode:%@", result.data];
NSLog(@"subType is %@, EAN13 is %@", @(result.subType), @(EAN13));
} else if (result.resultType == TBScanResultTypeDataMatrixCode) {
content = [NSString stringWithFormat:@"dm:%@", result.data];
NSLog(@"subType is %@, ScanType_DATAMATRIX is %@", @(result.subType), @(ScanType_DATAMATRIX));
} else if (result.resultType == TBScanResultTypeExpressCode) {
content = [NSString stringWithFormat:@"express:%@", result.data];
NSLog(@"subType is %@, ScanType_FASTMAIL is %@", @(result.subType), @(ScanType_FASTMAIL));
}
dispatch_async(dispatch_get_main_queue(), ^{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"" message:content delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
alert.tag = 9999;
[alert show];
});
}
持续扫码。
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
// 持续扫码
[self resumeScan];
}
- (void)scanPhotoFailed
{
// 相册识别失败的回调
NSLog(@"scanPhotoFailed");
}
其他回调处理。
- (void)cameraPermissionDenied
{
[self.navigationController popViewControllerAnimated:YES];
}
- (void)cameraDidStart
{
NSLog(@"started!!");
}
-(void)setTorchState:(TorchState)bState
{
NSLog(@"TorchState:%lu", (unsigned long)bState);
}
-(void)userTrack:(NSString*)name
{
NSLog(@"userTrack:%@", name);
}
-(void)userTrack:(NSString*)name args:(NSDictionary*)data
{
NSLog(@"userTrack:%@, args:%@", name, data);
}
- (void)scanPhotoFailed
{
// 相册识别失败的回调
NSLog(@"scanPhotoFailed");
}
在文档使用中是否遇到以下问题
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