ZBar二维码使用 问题 自定义界面

一 SDK下载

https://github.com/arciem/ZBarSDK 或者code4app 直接下载demo http://code4app.com/ios/%E5%88%A9%E7%94%A8ZBar%E5%AE%9E%E7%8E%B0%E4%BA%8C%E7%BB%B4%E7%A0%81%E6%89%AB%E6%8F%8F%E5%92%8C%E7%94%9F%E6%88%90/501a70f16803fa1c73000000

二 使用

label什么的自己定义下

- (IBAction)button:(id)sender {
/*扫描二维码部分：
导入ZBarSDK文件并引入一下框架
AVFoundation.framework
CoreMedia.framework
CoreVideo.framework
QuartzCore.framework
libiconv.dylib
引入头文件#import “ZBarSDK.h” 即可使用，注意引入

ZBarReaderDelegate协议

当找到条形码时，会执行代理方法

- (void) imagePickerController: (UIImagePickerController*) reader didFinishPickingMediaWithInfo: (NSDictionary*) info

最后读取并显示了条形码的图片和内容。*/

ZBarReaderViewController *reader = [ZBarReaderViewController new];
[[reader.view.subviews objectAtIndex:1] removeFromSuperview];
for (UIView *view in reader.view.subviews) {
//        [view removeFromSuperview];

NSLog(@"view = %@",view);
}

UIView *vi = [[UIView alloc]initWithFrame:CGRectMake(300, 300, 500, 400)];
vi.backgroundColor = [UIColor redColor];
[reader.view addSubview:vi];

reader.readerDelegate = self;
reader.supportedOrientationsMask = ZBarOrientationMaskAll;

ZBarImageScanner *scanner = reader.scanner;

[scanner setSymbology: ZBAR_I25
config: ZBAR_CFG_ENABLE
to: 0];
NSLog(@"controller = %@",reader.childViewControllers);
[self presentModalViewController: reader
animated: YES];
[reader release];
}

- (IBAction)button2:(id)sender {
/*字符转二维码
导入 libqrencode文件
引入头文件#import "QRCodeGenerator.h" 即可使用
*/
imageview.image = [QRCodeGenerator qrImageForString:text.text imageSize:imageview.bounds.size.width];

}

- (IBAction)Responder:(id)sender {
//键盘释放
[text resignFirstResponder];

}

- (void) imagePickerController: (UIImagePickerController*) reader
didFinishPickingMediaWithInfo: (NSDictionary*) info
{
id<NSFastEnumeration> results =
[info objectForKey: ZBarReaderControllerResults];
ZBarSymbol *symbol = nil;
for(symbol in results)
break;

imageview.image =
[info objectForKey: UIImagePickerControllerOriginalImage];

[reader dismissModalViewControllerAnimated: YES];

//判断是否包含 头'http:'
NSString *regex = @"http+:[^\\s]*";
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];

//判断是否包含 头'ssid:'
NSString *ssid = @"ssid+:[^\\s]*";;
NSPredicate *ssidPre = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",ssid];

label.text =  symbol.data ;

if ([predicate evaluateWithObject:label.text]) {

UIAlertView * alert = [[UIAlertView alloc]initWithTitle:nil
message:@"It will use the browser to this URL。"
delegate:nil
cancelButtonTitle:@"Close"
otherButtonTitles:@"Ok", nil];
alert.delegate = self;
alert.tag=1;
[alert show];
[alert release];

}
else if([ssidPre evaluateWithObject:label.text]){

NSArray *arr = [label.text componentsSeparatedByString:@";"];

NSArray * arrInfoHead = [[arr objectAtIndex:0] componentsSeparatedByString:@":"];

NSArray * arrInfoFoot = [[arr objectAtIndex:1] componentsSeparatedByString:@":"];

label.text=
[NSString stringWithFormat:@"ssid: %@ \n password:%@",
[arrInfoHead objectAtIndex:1],[arrInfoFoot objectAtIndex:1]];

UIAlertView * alert = [[UIAlertView alloc]initWithTitle:label.text
message:@"The password is copied to the clipboard , it will be redirected to the network settings interface"
delegate:nil
cancelButtonTitle:@"Close"
otherButtonTitles:@"Ok", nil];

alert.delegate = self;
alert.tag=2;
[alert show];
[alert release];

UIPasteboard *pasteboard=[UIPasteboard generalPasteboard];
//        然后，可以使用如下代码来把一个字符串放置到剪贴板上：
pasteboard.string = [arrInfoFoot objectAtIndex:1];

}
}

三 可能遇到的问题

在模拟器下正常运行的程序，在真机上出现下面的错误：

ld: file is universal (3 slices) but does not contain a(n) armv7s slice: /Users/david/Downloads/QR code/QR code/ZBarSDK/libzbar.a for architecture armv7s



上面的提示是使用的libzbar这个库不支持armv7s。

在Xcode里，点击相应的Target，然后点Build Settings，找到VALID_ARCHS，然后删除里面的arvm7s.









再次运行，如果成功就OK了，不成功往下看

再运行，出现新的错误：



将Build Active Architecture Only改为No



可以在真机上运行了！

四 自定义扫描界面

- (void)QRscan

{

ZBarReaderViewController *reader = [ZBarReaderViewController new];

reader.readerDelegate = self;

//非全屏

reader.wantsFullScreenLayout = NO;

//隐藏底部控制按钮

reader.showsZBarControls = NO;

//设置自己定义的界面

[self setOverlayPickerView:reader];

ZBarImageScanner *scanner = reader.scanner;

[scanner setSymbology: ZBAR_I25

config: ZBAR_CFG_ENABLE

to: 0];

[self presentModalViewController: reader

animated: YES];

[reader release];

}

- (void)setOverlayPickerView:(ZBarReaderViewController *)reader

{

//清除原有控件

for (UIView *temp in [reader.view subviews]) {

for (UIButton *button in [temp subviews]) {

if ([button isKindOfClass:[UIButton class]]) {

[button removeFromSuperview];

}

}

for (UIToolbar *toolbar in [temp subviews]) {

if ([toolbar isKindOfClass:[UIToolbar class]]) {

[toolbar setHidden:YES];

[toolbar removeFromSuperview];

}

}

}

//画中间的基准线

UIView* line = [[UIView alloc] initWithFrame:CGRectMake(40, 220, 240, 1)];

line.backgroundColor = [UIColor redColor];

[reader.view addSubview:line];

[line release];

//最上部view

UIView* upView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 80)];

upView.alpha = 0.3;

upView.backgroundColor = [UIColor blackColor];

[reader.view addSubview:upView];

//用于说明的label

UILabel * labIntroudction= [[UILabel alloc] init];

labIntroudction.backgroundColor = [UIColor clearColor];

labIntroudction.frame=CGRectMake(15, 20, 290, 50);

labIntroudction.numberOfLines=2;

labIntroudction.textColor=[UIColor whiteColor];

labIntroudction.text=@"将二维码图像置于矩形方框内，离手机摄像头10CM左右，系统会自动识别。";

[upView addSubview:labIntroudction];

[labIntroudction release];

[upView release];

//左侧的view

UIView *leftView = [[UIView alloc] initWithFrame:CGRectMake(0, 80, 20, 280)];

leftView.alpha = 0.3;

leftView.backgroundColor = [UIColor blackColor];

[reader.view addSubview:leftView];

[leftView release];

//右侧的view

UIView *rightView = [[UIView alloc] initWithFrame:CGRectMake(300, 80, 20, 280)];

rightView.alpha = 0.3;

rightView.backgroundColor = [UIColor blackColor];

[reader.view addSubview:rightView];

[rightView release];

//底部view

UIView * downView = [[UIView alloc] initWithFrame:CGRectMake(0, 360, 320, 120)];

downView.alpha = 0.3;

downView.backgroundColor = [UIColor blackColor];

[reader.view addSubview:downView];

[downView release];

//用于取消操作的button

UIButton *cancelButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];

cancelButton.alpha = 0.4;

[cancelButton setFrame:CGRectMake(20, 390, 280, 40)];

[cancelButton setTitle:@"取消" forState:UIControlStateNormal];

[cancelButton.titleLabel setFont:[UIFont boldSystemFontOfSize:20]];

[cancelButton addTarget:self action:@selector(dismissOverlayView:)forControlEvents:UIControlEventTouchUpInside];

[reader.view addSubview:cancelButton];

}

//取消button方法

- (void)dismissOverlayView:(id)sender{

[self dismissModalViewControllerAnimated: YES];

}