SVProgressHUD

SVProgressHUD is a clean and easy-to-use HUD meant to display the progress of an ongoing task.

Installation

From CocoaPods

I'm not a big fan of CocoaPods, so tend to not keep it updated. If you really want to use SVProgressHUD with CocoaPods, I suggest you use pod 'SVProgressHUD', :head to pull from the master branch directly. I'm usually careful about what I push there and is the version I use myself in all my projects.

Manually

Drag the SVProgressHUD/SVProgressHUD folder into your project.
Add the QuartzCore framework to your project.

Usage

(see sample Xcode project in /Demo)

SVProgressHUD is created as a singleton (i.e. it doesn't need to be explicitly allocated and instantiated; you directly call [SVProgressHUD method]).

Use SVProgressHUD wisely! Only use it if you absolutely need to perform a task before taking the user forward. Bad use case examples: pull to refresh, infinite scrolling, sending message.

Using SVProgressHUD in your app will usually look as simple as this (using Grand Central Dispatch):

[SVProgressHUD show];
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
    // time-consuming task
    dispatch_async(dispatch_get_main_queue(), ^{
        [SVProgressHUD dismiss];
    });
});

Showing the HUD

You can show the status of indeterminate tasks using one of the following:

+ (void)show;
+ (void)showWithMaskType:(SVProgressHUDMaskType)maskType;
+ (void)showWithStatus:(NSString*)string;
+ (void)showWithStatus:(NSString*)string maskType:(SVProgressHUDMaskType)maskType;

If you'd like the HUD to reflect the progress of a task, use one of these:

+ (void)showProgress:(CGFloat)progress;
+ (void)showProgress:(CGFloat)progress status:(NSString*)status;
+ (void)showProgress:(CGFloat)progress status:(NSString*)status maskType:(SVProgressHUDMaskType)maskType;

Dismissing the HUD

It can be dismissed right away using:

+ (void)dismiss;

If you'd like to stack HUDs, you can balance out every show call using:

+ (void)popActivity;

The HUD will get dismissed once the popActivity calls will match the number of show calls.

Or show a confirmation glyph before before getting dismissed 1 second later using:

+ (void)showSuccessWithStatus:(NSString*)string;
+ (void)showErrorWithStatus:(NSString *)string;
+ (void)showImage:(UIImage*)image status:(NSString*)string; // use 28x28 pngs

Customization

SVProgressHUD can be customized via the following methods:

+ (void)setBackgroundColor:(UIColor*)color; // default is [UIColor whiteColor]
+ (void)setForegroundColor:(UIColor*)color; // default is [UIColor blackColor]
+ (void)setRingThickness:(CGFloat)width; // default is 4 pt
+ (void)setFont:(UIFont*)font; // default is [UIFont preferredFontForTextStyle:UIFontTextStyleSubheadline]
+ (void)setSuccessImage:(UIImage*)image; // default is bundled success image from Glyphish
+ (void)setErrorImage:(UIImage*)image; // default is bundled error image from Glyphish

Notifications

SVProgressHUD posts four notifications via NSNotificationCenter in response to being shown/dismissed:

SVProgressHUDWillAppearNotification when the show animation starts
SVProgressHUDDidAppearNotification when the show animation completes
SVProgressHUDWillDisappearNotification when the dismiss animation starts
SVProgressHUDDidDisappearNotification when the dismiss animation completes

Each notification passes a userInfo dictionary holding the HUD's status string (if any), retrievable via SVProgressHUDStatusUserInfoKey.

SVProgressHUD also posts SVProgressHUDDidReceiveTouchEventNotification when users touch on the screen. For this notification userInfo is not passed but the object parameter contains the UIEvent that related to the touch.

Credits

SVProgressHUD is brought to you by Sam Vermette and contributors to the project. The success and error icons are from Glyphish. If you have feature suggestions or bug reports, feel free to help out by sending pull requests or by creating new issues. If you're using SVProgressHUD in your project, attribution would be nice.

ayanonagon/SVProgressHUD