當相機出現在ZBar SDK中時，是否可以爲焦點設置方括號？

Question

我想在ZBAR SDK的相機視圖中放置一個圖像（焦點的方括號）？任何人都可以請幫助我需要做什麼？謝謝

Answer 1

您可以設置相機屏幕覆蓋以設置cameraOverlayView屬性。設計一個視圖，按您的要求，併爲其分配：

reader.cameraOverlayView = [self CommomOverlay]; 

-(UIView *)CommomOverlay{ 
    UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0,0,320,480)]; 

    UIImageView *TopBar = [[UIImageView alloc] initWithFrame:CGRectMake(0,0,320,58)]; 
    [TopBar setImage:[UIImage imageNamed:@"topbar.png"]]; 
    [view addSubview:TopBar]; 

    UILabel *Toplabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 9, 300, 30)]; 
    [Toplabel setFont:[UIFont fontWithName:@"Arial-BoldMT" size:11]]; 
    [Toplabel setTextAlignment:UITextAlignmentCenter]; 
    [Toplabel setBackgroundColor:[UIColor clearColor]]; 
    [Toplabel setTextColor:[UIColor colorWithRed:76/255.0 green:76/255.0 blue:76/255.0 alpha:1.0]]; 
    [Toplabel setNumberOfLines:1]; 
    [Toplabel setText:@"Scan now "]; 
    [TopBar addSubview:Toplabel]; 

    UIImageView *FrameImg = [[UIImageView alloc] initWithFrame:CGRectMake(60,150,193,170)]; 
    [FrameImg setImage:[UIImage imageNamed:@"frame.png"]]; 
    [view addSubview:FrameImg]; 
    return view; 
}