Set custom images to the UIBarButtonItem but it doesn't show any image
I want to set custom images to the UIBarButtonItem but it only shows a rectangular box around and It doesn't show the actual image.
func setupBrowserToolbar() {
let browser = UIToolbar(frame: CGRect(x: 0, y: 20, width: self.view.frame.width, height: 30))
//配置返回组件
let path = NSBundle.mainBundle().pathForResource("back", ofType: "png")
let urlstr = NSURL(fileURLWithPath: path!)
let data = NSData(contentsOfURL: urlstr)
let btnback = UIBarButtonItem(image: UIImage(data: data!), style: UIBarButtonItemStyle.Plain, target: self, action: Selector("backClicked:"))
//分割按钮1
let btngrap1 = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: nil, action: nil)
//前进按钮
let btnforward = UIBarButtonItem(image: UIImage(named: "forward.png"), style: UIBarButtonItemStyle.Plain, target: self, action: Selector("forwardClicked:"))
//分割按钮2
let btngrap2 = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: nil, action: nil)
//重新加载
let btnreload = UIBarButtonItem(image: UIImage(named: "reload.png"), style: UIBarButtonItemStyle.Plain, target: self, action: Selector("reloadClicked:"))
//分割按钮3
let btngrap3 = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: nil, action: nil)
//停止加载
let btnstop = UIBarButtonItem(image: UIImage(named:"stop.png"), style: UIBarButtonItemStyle.Plain, target: self, action: Selector("stopClicked:"))
progress = UIProgressView((frame: CGRect(x: 0, y: 48, width: self.view.frame.width-50, height: 2)))
progress.progress = 0
browser.setItems([btnback, btngrap1, btnforward, btngrap2, btnreload, btngrap3, btnstop], animated: true)
ptimer = NSTimer(timeInterval: 0.2, target: self, selector: Selector("loadProgress"), userInfo: nil, repeats: true)
self.view.addSubview(browser)
}
my app screen shot
The above method is toolbar configuration but I don't know what is wrong.
Thats because UIBarButtonItem image's default rendering mode always draw the image as a template image, ignoring its color information (UIImageRenderingModeAlwaysTemplate). Just create your image using UIImage's method imageWithRenderingMode always original.
UIImage(named: "yourImageName")!.withRenderingMode(.alwaysOriginal)