Is it possible to put a square bracket for the focus when the camera appears in the ZBar SDK?

问题

I'm trying to place an image (a square bracket for the focus) in the camera view of the ZBAR SDK? Can anyone please help me what needs to be done? thanks

回答1:

You can set overlay of camera screen to set the cameraOverlayView property. Design a view as per your requirement and assign it:

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;
}

来源：https://stackoverflow.com/questions/8291299/is-it-possible-to-put-a-square-bracket-for-the-focus-when-the-camera-appears-in