IOS 二维码相机操作栏自定义实例

作者：朱克锋

邮箱：zhukefeng@iboxpay.com

转载请注明出处：http://blog.youkuaiyun.com/linux_zkf

在二维码的操作中，常常会因为某些需要要改变原来的相机的操作栏，这里给出一个简单的实例，其它相关的状态可以参考实现

实例图示：

- (void)QRscan

{

    // ADD: present a barcode reader that scans from the camera feed

    ZBarReaderViewController *reader = [ZBarReaderViewControllernew];

    reader.readerDelegate =self;

    reader.wantsFullScreenLayout =NO;

    reader.showsZBarControls =NO;

    reader.cameraOverlayView=[selfsetOverlayPickerView];

    ZBarImageScanner *scanner = reader.scanner;

    // TODO: (optional) additional reader configuration here

    

    // EXAMPLE: disable rarely used I2/5 to improve performance

    [scanner setSymbology:ZBAR_I25

                   config:ZBAR_CFG_ENABLE

                       to: 0];

    // present and release the controller

    [selfpresentModalViewController: reader

                            animated: YES];

    [reader release];

}

- (UIView *)setOverlayPickerView

{

    UIView *overlayView = [[[UIViewalloc] initWithFrame:CGRectMake(0,0, 320, 480)]autorelease];

    [overlayView setBackgroundColor:[UIColorclearColor]];

    

    UIToolbar *toolBar = [[UIToolbaralloc] init];

    

    UIBarButtonItem *backButton = [[UIBarButtonItemalloc] initWithTitle:@"取消"style:UIBarButtonItemStyleBorderedtarget:selfaction:@selector(dismissOverlayView:)];

   

    [toolBar setItems:[NSArrayarrayWithObjects:backButton,nil]];

    [toolBar setBarStyle:UIBarStyleDefault];

    CGRect toolBarFrame;

    toolBarFrame = CGRectMake(0,420, 320, 44);

    [toolBar setFrame:toolBarFrame];

    

    [overlayView addSubview:toolBar];

    

    [backButton release];

    [toolBar release];

    

    return overlayView;

}

- (void)dismissOverlayView:(id)sender{ 

    [selfdismissModalViewControllerAnimated: YES];

}