An animated gradient loading bar. Inspired by iOS Style Gradient Progress Bar with Pure CSS/CSS3.
To run the example project, clone the repo, and run pod install
from the Example directory first.
GradientLoadingBar can be added to your project using CocoaPods by adding the following line to your Podfile:
pod 'GradientLoadingBar', '~> 1.0'
To get started you need to import GradientLoadingBar
. To show it, simply call the show()
method and after you're done with your operations call hide()
.
// Create instance
let gradientLoadingBar = GradientLoadingBar()
// Show loading bar
gradientLoadingBar.show()
// Do e.g. server calls etc.
// Hide loading bar
gradientLoadingBar.hide()
You can overwrite the default configuration by calling the initializers with the optional parameters height
, durations
, gradientColors
and onView
:
let gradientLoadingBar = GradientLoadingBar(
height: 1.0,
durations: Durations(fadeIn: 1.0, fadeOut: 2.0, progress: 3.0)
gradientColors: [
UIColor(hexString:"#4cd964").cgColor,
UIColor(hexString:"#ff2d55").cgColor
]
onView: self.view
)
For custom colors you'll have to pass an array with CGColor
values. For creating those colors you can use all initializers for UIColor
mentioned here: UIColor+Initializers.swift
For an example using the loading bar on a custom superview (e.g. an UIButton) see the example application. For further cusomization you can also subclass GradientLoadingBar
and overwrite the method setupConstraints()
. This also shown in the example application.
If you don't want to save the instance on a variable and use the singleton instead, you can use the static shared
variable. Add the following code to your app delegate didFinishLaunchingWithOptions
method:
GradientLoadingBar.shared = GradientLoadingBar(
height: 3.0,
durations: Durations(fadeIn: 1.0, fadeOut: 2.0, progress: 3.00),
gradientColors: [
UIColor(hexString:"#4cd964").cgColor,
UIColor(hexString:"#ff2d55").cgColor
]
)
After that you can use GradientLoadingBar.shared
to get the instance.
Check out my GitHub Gist on how to easily use GradientLoadingBar with PromiseKit.
Felix Mau (contact(@)felix.hamburg)
GradientLoadingBar is available under the MIT license. See the LICENSE file for more info.