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Add option to display progress bar on launch image #1

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40 changes: 39 additions & 1 deletion Example Project/GCOLaunchImageTransition/GCOAppDelegate.m
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Original file line number Diff line number Diff line change
Expand Up @@ -32,12 +32,19 @@

#import "GCOLaunchImageTransition.h"

@interface GCOAppDelegate ()

@property (nonatomic, assign) float progress;

@end


@implementation GCOAppDelegate

- (void)applicationDidBecomeActive:(UIApplication *)application
{
// Choose a demo by setting values from 1 to 3
NSUInteger demo = 3;
NSUInteger demo = 4;

switch( demo )
{
Expand Down Expand Up @@ -70,9 +77,40 @@ - (void)applicationDidBecomeActive:(UIApplication *)application

break;
}

case 4:
{
GCOLaunchImageTransition *transition = [GCOLaunchImageTransition transitionWithInfiniteDelayAndDuration:0.5 style:GCOLaunchImageTransitionAnimationStyleZoomIn progressBarPosition:CGPointMake( 0.5, 0.9 ) progressBarWidth:0.5];
transition.progressLabel.font = [UIFont boldSystemFontOfSize:16];
transition.progressLabel.textColor = [UIColor purpleColor];
transition.progressView.trackTintColor = [UIColor lightGrayColor];
transition.progressView.progressTintColor = [UIColor purpleColor];

self.progress = 0.0;
NSTimer *timer = [NSTimer scheduledTimerWithTimeInterval:0.01 target:self selector:@selector(updateLaunchProgress:) userInfo:nil repeats:YES];
[timer fire];

[self performSelector:@selector(finishLaunchImageTransitionNow) withObject:nil afterDelay:6.0];
break;
}
}
}


- (void)updateLaunchProgress:(NSTimer *)timer
{
NSDictionary *userInfo = @{GCOLaunchImageTransitionProgressValue : @(self.progress), GCOLaunchImageTransitionProgressText:[NSString stringWithFormat:@"%u %%", (int)(self.progress * 100)]};
[[NSNotificationCenter defaultCenter] postNotificationName:GCOLaunchImageTransitionProgressNotification object:nil userInfo:userInfo];

if (self.progress >= 1.0f)
{
[timer invalidate];
}

self.progress += 0.002f;
}


- (void)finishLaunchImageTransitionNow
{
[[NSNotificationCenter defaultCenter] postNotificationName:GCOLaunchImageTransitionHideNotification object:self];
Expand Down
15 changes: 12 additions & 3 deletions GCOLaunchImageTransition/GCOLaunchImageTransition.h
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Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,9 @@
#define GCOLaunchImageTransitionNearInfiniteDelay DBL_MAX

extern NSString* const GCOLaunchImageTransitionHideNotification;
extern NSString* const GCOLaunchImageTransitionProgressNotification;
extern NSString* const GCOLaunchImageTransitionProgressValue;
extern NSString* const GCOLaunchImageTransitionProgressText;

typedef enum GCOLaunchImageTransitionAnimationStyle_
{
Expand All @@ -43,19 +46,25 @@ typedef enum GCOLaunchImageTransitionAnimationStyle_

@interface GCOLaunchImageTransition : NSObject

@property( nonatomic, strong ) UIProgressView* progressView;

@property( nonatomic, strong ) UILabel* progressLabel;

// Create transition with a given style that begins immediately

+ (void)transitionWithDuration:(NSTimeInterval)duration style:(GCOLaunchImageTransitionAnimationStyle)style;
+ (instancetype)transitionWithDuration:(NSTimeInterval)duration style:(GCOLaunchImageTransitionAnimationStyle)style;

// Create transition with an near-infinite delay that requires manual dismissal via notification like this:
// [[NSNotificationCenter defaultCenter] postNotificationName:GCOLaunchImageTransitionHideNotification object:self];)

+ (void)transitionWithInfiniteDelayAndDuration:(NSTimeInterval)duration style:(GCOLaunchImageTransitionAnimationStyle)style;
+ (instancetype)transitionWithInfiniteDelayAndDuration:(NSTimeInterval)duration style:(GCOLaunchImageTransitionAnimationStyle)style;

// Create fully customizable transition including an optional activity indicator
// The 'activityIndicatorPosition' is a percentage value ('CGPointMake( 0.5, 0.5 )' being the center)
// See https://github.com/gonecoding/GCOLaunchImageTransition for more documentation

+ (void)transitionWithDelay:(NSTimeInterval)delay duration:(NSTimeInterval)duration style:(GCOLaunchImageTransitionAnimationStyle)style activityIndicatorPosition:(CGPoint)activityIndicatorPosition activityIndicatorStyle:(UIActivityIndicatorViewStyle)activityIndicatorStyle;
+ (instancetype)transitionWithDelay:(NSTimeInterval)delay duration:(NSTimeInterval)duration style:(GCOLaunchImageTransitionAnimationStyle)style activityIndicatorPosition:(CGPoint)activityIndicatorPosition activityIndicatorStyle:(UIActivityIndicatorViewStyle)activityIndicatorStyle;

+ (instancetype)transitionWithInfiniteDelayAndDuration:(NSTimeInterval)duration style:(GCOLaunchImageTransitionAnimationStyle)style progressBarPosition:(CGPoint)progressBarPosition progressBarWidth:(CGFloat)progressBarWidth;

@end
93 changes: 77 additions & 16 deletions GCOLaunchImageTransition/GCOLaunchImageTransition.m
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,9 @@
#import "GCOLaunchImageTransition.h"

NSString* const GCOLaunchImageTransitionHideNotification = @"GCOLaunchImageTransitionHideNotification";
NSString* const GCOLaunchImageTransitionProgressNotification = @"GCOLaunchImageTransitionProgressNotification";
NSString* const GCOLaunchImageTransitionProgressValue = @"GCOLaunchImageTransitionProgressValue";
NSString* const GCOLaunchImageTransitionProgressText = @"GCOLaunchImageTransitionProgressText";

@interface GCOLaunchImageTransition ()

Expand All @@ -45,32 +48,50 @@ @interface GCOLaunchImageTransition ()

@implementation GCOLaunchImageTransition

+ (void)transitionWithDuration:(NSTimeInterval)duration style:(GCOLaunchImageTransitionAnimationStyle)style
+ (instancetype)transitionWithDuration:(NSTimeInterval)duration style:(GCOLaunchImageTransitionAnimationStyle)style
{
[self transitionWithDelay:0.0 duration:duration style:style activityIndicatorPosition:CGPointZero activityIndicatorStyle:0];
return [self transitionWithDelay:0.0 duration:duration style:style activityIndicatorPosition:CGPointZero activityIndicatorStyle:0];
}

+ (void)transitionWithInfiniteDelayAndDuration:(NSTimeInterval)duration style:(GCOLaunchImageTransitionAnimationStyle)style

+ (instancetype)transitionWithInfiniteDelayAndDuration:(NSTimeInterval)duration style:(GCOLaunchImageTransitionAnimationStyle)style
{
[self transitionWithDelay:GCOLaunchImageTransitionNearInfiniteDelay duration:duration style:style activityIndicatorPosition:CGPointZero activityIndicatorStyle:0];
return [self transitionWithDelay:GCOLaunchImageTransitionNearInfiniteDelay duration:duration style:style activityIndicatorPosition:CGPointZero activityIndicatorStyle:0];
}

+ (void)transitionWithDelay:(NSTimeInterval)delay duration:(NSTimeInterval)duration style:(GCOLaunchImageTransitionAnimationStyle)style activityIndicatorPosition:(CGPoint)activityIndicatorPosition activityIndicatorStyle:(UIActivityIndicatorViewStyle)activityIndicatorStyle

+ (instancetype)transitionWithDelay:(NSTimeInterval)delay duration:(NSTimeInterval)duration style:(GCOLaunchImageTransitionAnimationStyle)style activityIndicatorPosition:(CGPoint)activityIndicatorPosition activityIndicatorStyle:(UIActivityIndicatorViewStyle)activityIndicatorStyle
{
static dispatch_once_t onceToken;

dispatch_once( &onceToken, ^
{
UIWindow* window = [UIApplication sharedApplication].keyWindow;
GCOLaunchImageTransition* transitionView = [[self alloc] initWithAnimationDelay:delay animationDuration:duration style:style activityIndicatorPosition:activityIndicatorPosition activityIndicatorStyle:activityIndicatorStyle];

[window addSubview:transitionView.imageView];
});
return [self transitionWithDelay:delay duration:duration style:style activityIndicatorPosition:activityIndicatorPosition activityIndicatorStyle:activityIndicatorStyle progressBarPosition:CGPointZero progressBarWidth:0.0f];
}


+ (instancetype)transitionWithInfiniteDelayAndDuration:(NSTimeInterval)duration style:(GCOLaunchImageTransitionAnimationStyle)style progressBarPosition:(CGPoint)progressBarPosition progressBarWidth:(CGFloat)progressBarWidth
{
return [self transitionWithDelay:GCOLaunchImageTransitionNearInfiniteDelay duration:duration style:style activityIndicatorPosition:CGPointZero activityIndicatorStyle:0 progressBarPosition:progressBarPosition progressBarWidth:progressBarWidth];
}


+ (instancetype)transitionWithDelay:(NSTimeInterval)delay duration:(NSTimeInterval)duration style:(GCOLaunchImageTransitionAnimationStyle)style activityIndicatorPosition:(CGPoint)activityIndicatorPosition activityIndicatorStyle:(UIActivityIndicatorViewStyle)activityIndicatorStyle progressBarPosition:(CGPoint)progressBarPosition progressBarWidth:(CGFloat)progressBarWidth
{
static GCOLaunchImageTransition *transitionView = nil;
static dispatch_once_t onceToken;

dispatch_once( &onceToken, ^
{
UIWindow* window = [UIApplication sharedApplication].keyWindow;
transitionView = [[self alloc] initWithAnimationDelay:delay animationDuration:duration style:style activityIndicatorPosition:activityIndicatorPosition activityIndicatorStyle:activityIndicatorStyle progressBarPosition:progressBarPosition progressBarWidth:progressBarWidth];

[window addSubview:transitionView.imageView];
});

return transitionView;
}


#pragma mark - Object life cycle

- (id)initWithAnimationDelay:(NSTimeInterval)delay animationDuration:(NSTimeInterval)duration style:(GCOLaunchImageTransitionAnimationStyle)style activityIndicatorPosition:(CGPoint)activityIndicatorPosition activityIndicatorStyle:(UIActivityIndicatorViewStyle)activityIndicatorStyle
- (id)initWithAnimationDelay:(NSTimeInterval)delay animationDuration:(NSTimeInterval)duration style:(GCOLaunchImageTransitionAnimationStyle)style activityIndicatorPosition:(CGPoint)activityIndicatorPosition activityIndicatorStyle:(UIActivityIndicatorViewStyle)activityIndicatorStyle progressBarPosition:(CGPoint)progressBarPosition progressBarWidth:(CGFloat)progressBarWidth
{
self = [super init];

Expand Down Expand Up @@ -99,6 +120,28 @@ - (id)initWithAnimationDelay:(NSTimeInterval)delay animationDuration:(NSTimeInte

[self.activityIndicatorView startAnimating];
}
else if ( !CGPointEqualToPoint( progressBarPosition, CGPointZero) )
{
self.progressView = [[UIProgressView alloc] initWithProgressViewStyle:UIProgressViewStyleDefault];

CGSize size = self.imageView.bounds.size;

CGRect frame = self.progressView.frame;
frame.size.width = size.width * progressBarWidth;
self.progressView.frame = frame;

self.progressView.center = CGPointMake( size.width * progressBarPosition.x, size.height * progressBarPosition.y );

self.progressLabel = [[UILabel alloc] initWithFrame:CGRectZero];
self.progressLabel.lineBreakMode = UILineBreakModeMiddleTruncation;
self.progressLabel.numberOfLines = 1;
self.progressLabel.backgroundColor = [UIColor clearColor];

[self.imageView addSubview:self.progressView];
[self.imageView addSubview:self.progressLabel];

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(handleProgressNotification:) name:GCOLaunchImageTransitionProgressNotification object:nil];
}

// Start transition animation with given delay
[self performSelector:@selector(performViewAnimations) withObject:nil afterDelay:self.delay];
Expand All @@ -115,7 +158,7 @@ - (void)dealloc
#pragma mark - View animations

- (void)performViewAnimations
{
{
if( self.activityIndicatorView )
{
[self.activityIndicatorView stopAnimating];
Expand All @@ -140,8 +183,26 @@ - (void)performViewAnimations
}];
}


#pragma mark - Handle notifications

- (void)handleProgressNotification:(NSNotification*)notification
{
if( [notification.name isEqualToString:GCOLaunchImageTransitionProgressNotification] )
{
float progress = [notification.userInfo[GCOLaunchImageTransitionProgressValue] floatValue];
self.progressView.progress = progress;

self.progressLabel.text = notification.userInfo[GCOLaunchImageTransitionProgressText];

CGRect frame = self.progressLabel.frame;
frame.size = [self.progressLabel sizeThatFits:CGSizeMake(frame.size.width, 10000)];
frame.origin = CGPointMake(self.progressView.frame.size.width - frame.size.width / 2, CGRectGetMaxY(self.progressView.frame) + 8);
self.progressLabel.frame = frame;
}
}


- (void)handleHideNotification:(NSNotification*)notification
{
if( [notification.name isEqualToString:GCOLaunchImageTransitionHideNotification] )
Expand Down