IOS 设置View背景色

    UIImageView *imgView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"01首页.png"]];

    

    imgView.frame = self.view.bounds;

    

    imgView.autoresizingMask = UIViewAutoresizingFlexibleWidth;

    

    [self.view insertSubview:imgView atIndex:0];

 

或者在viewDidload使用

   self.view.backgroundColor = [UIColor colorWithPatternImage:[UIImageimageNamed imageNamed:@"instrument_bg"]];