-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathMBProgressHUD.m
executable file
·1367 lines (1138 loc) · 48.4 KB
/
MBProgressHUD.m
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
//
// MBProgressHUD.m
// Version 0.9.2
// Created by Matej Bukovinski on 2.4.09.
//
#import "MBProgressHUD.h"
#import <tgmath.h>
#ifndef kCFCoreFoundationVersionNumber_iOS_7_0
#define kCFCoreFoundationVersionNumber_iOS_7_0 847.20
#endif
#ifndef kCFCoreFoundationVersionNumber_iOS_8_0
#define kCFCoreFoundationVersionNumber_iOS_8_0 1129.15
#endif
#define MBMainThreadAssert() NSAssert([NSThread isMainThread], @"MBProgressHUD needs to be accessed on the main thread.");
CGFloat const MBProgressMaxOffset = 1000000.f;
static const CGFloat MBDefaultPadding = 4.f;
static const CGFloat MBDefaultLabelFontSize = 16.f;
static const CGFloat MBDefaultDetailsLabelFontSize = 12.f;
@interface MBProgressHUD () {
// Depricated
UIColor *_activityIndicatorColor;
CGFloat _opacity;
}
@property (nonatomic, assign) BOOL useAnimation;
@property (nonatomic, assign, getter=hasFinished) BOOL finished;
@property (nonatomic, strong) UIView *indicator;
@property (nonatomic, strong) NSTimer *graceTimer;
@property (nonatomic, strong) NSTimer *minShowTimer;
@property (nonatomic, strong) NSDate *showStarted;
@property (nonatomic, strong) NSArray *paddingConstraints;
@property (nonatomic, strong) NSArray *bezelConstraints;
@property (nonatomic, strong) UIView *topSpacer;
@property (nonatomic, strong) UIView *bottomSpacer;
// Deprecated
@property (copy, nullable) MBProgressHUDCompletionBlock completionBlock;
@property (assign) BOOL taskInProgress;
@end
@interface MBProgressHUDRoundedButton : UIButton
@end
@implementation MBProgressHUD
#pragma mark - Class methods
+ (instancetype)showHUDAddedTo:(UIView *)view animated:(BOOL)animated {
MBProgressHUD *hud = [[self alloc] initWithView:view];
hud.removeFromSuperViewOnHide = YES;
[view addSubview:hud];
[hud showAnimated:animated];
return hud;
}
+ (BOOL)hideHUDForView:(UIView *)view animated:(BOOL)animated {
MBProgressHUD *hud = [self HUDForView:view];
if (hud != nil) {
hud.removeFromSuperViewOnHide = YES;
[hud hideAnimated:animated];
return YES;
}
return NO;
}
+ (MBProgressHUD *)HUDForView:(UIView *)view {
NSEnumerator *subviewsEnum = [view.subviews reverseObjectEnumerator];
for (UIView *subview in subviewsEnum) {
if ([subview isKindOfClass:self]) {
return (MBProgressHUD *)subview;
}
}
return nil;
}
#pragma mark - Lifecycle
- (void)commonInit {
// Set default values for properties
_animationType = MBProgressHUDAnimationFade;
_mode = MBProgressHUDModeIndeterminate;
_margin = 20.0f;
_opacity = 1.f;
_defaultMotionEffectsEnabled = YES;
// Default color, depending on the current iOS version
BOOL isLegacy = kCFCoreFoundationVersionNumber < kCFCoreFoundationVersionNumber_iOS_7_0;
_contentColor = isLegacy ? [UIColor whiteColor] : [UIColor colorWithWhite:0.f alpha:0.7f];
// Transparent background
self.opaque = NO;
self.backgroundColor = [UIColor clearColor];
// Make it invisible for now
self.alpha = 0.0f;
self.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
self.layer.allowsGroupOpacity = NO;
[self setupViews];
[self updateIndicators];
[self registerForNotifications];
}
- (instancetype)initWithFrame:(CGRect)frame {
if ((self = [super initWithFrame:frame])) {
[self commonInit];
}
return self;
}
- (instancetype)initWithCoder:(NSCoder *)aDecoder {
if ((self = [super initWithCoder:aDecoder])) {
[self commonInit];
}
return self;
}
- (id)initWithView:(UIView *)view {
NSAssert(view, @"View must not be nil.");
return [self initWithFrame:view.bounds];
}
- (void)dealloc {
[self unregisterFromNotifications];
}
#pragma mark - Show & hide
- (void)showAnimated:(BOOL)animated {
MBMainThreadAssert();
self.useAnimation = animated;
self.finished = NO;
// If the grace time is set postpone the HUD display
if (self.graceTime > 0.0) {
NSTimer *timer = [NSTimer timerWithTimeInterval:self.graceTime target:self selector:@selector(handleGraceTimer:) userInfo:nil repeats:NO];
[[NSRunLoop currentRunLoop] addTimer:timer forMode:NSRunLoopCommonModes];
self.graceTimer = timer;
}
// ... otherwise show the HUD imediately
else {
[self showUsingAnimation:self.useAnimation];
}
}
- (void)hideAnimated:(BOOL)animated {
MBMainThreadAssert();
self.useAnimation = animated;
self.finished = YES;
// If the minShow time is set, calculate how long the hud was shown,
// and pospone the hiding operation if necessary
if (self.minShowTime > 0.0 && self.showStarted) {
NSTimeInterval interv = [[NSDate date] timeIntervalSinceDate:self.showStarted];
if (interv < self.minShowTime) {
NSTimer *timer = [NSTimer timerWithTimeInterval:(self.minShowTime - interv) target:self selector:@selector(handleMinShowTimer:) userInfo:nil repeats:NO];
[[NSRunLoop currentRunLoop] addTimer:timer forMode:NSRunLoopCommonModes];
self.minShowTimer = timer;
return;
}
}
// ... otherwise hide the HUD immediately
[self hideUsingAnimation:self.useAnimation];
}
- (void)hideAnimated:(BOOL)animated afterDelay:(NSTimeInterval)delay {
[self performSelector:@selector(hideDelayed:) withObject:[NSNumber numberWithBool:animated] afterDelay:delay];
}
- (void)hideDelayed:(NSNumber *)animated {
[self hideAnimated:[animated boolValue]];
}
#pragma mark - Timer callbacks
- (void)handleGraceTimer:(NSTimer *)theTimer {
// Show the HUD only if the task is still running
if (!self.hasFinished) {
[self showUsingAnimation:self.useAnimation];
}
}
- (void)handleMinShowTimer:(NSTimer *)theTimer {
[self hideUsingAnimation:self.useAnimation];
}
#pragma mark - View Hierrarchy
- (void)didMoveToSuperview {
[self updateForCurrentOrientationAnimated:NO];
}
#pragma mark - Internal show & hide operations
- (void)showUsingAnimation:(BOOL)animated {
// Cancel any scheduled hideDelayed: calls
[NSObject cancelPreviousPerformRequestsWithTarget:self];
self.showStarted = [NSDate date];
self.alpha = 1.f;
if (animated) {
[self animateIn:YES withType:self.animationType completion:NULL];
} else {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
self.bezelView.alpha = self.opacity;
#pragma clang diagnostic pop
self.backgroundView.alpha = 1.f;
}
}
- (void)hideUsingAnimation:(BOOL)animated {
if (animated && self.showStarted) {
[self animateIn:NO withType:self.animationType completion:^(BOOL finished) {
[self done];
}];
} else {
self.bezelView.alpha = 0.f;
self.backgroundView.alpha = 1.f;
[self done];
}
self.showStarted = nil;
}
- (void)animateIn:(BOOL)animatingIn withType:(MBProgressHUDAnimation)type completion:(void(^)(BOOL finished))completion {
// Automatically determine the correct
if (type == MBProgressHUDAnimationZoom) {
type = animatingIn ? MBProgressHUDAnimationZoomIn : MBProgressHUDAnimationZoomOut;
}
CGAffineTransform small = CGAffineTransformMakeScale(0.5f, 0.5f);
CGAffineTransform large = CGAffineTransformMakeScale(1.5f, 1.5f);
// Set starting state
UIView *bezelView = self.bezelView;
if (animatingIn && bezelView.alpha == 0.f && type == MBProgressHUDAnimationZoomIn) {
bezelView.transform = small;
} else if (animatingIn && bezelView.alpha == 0.f && type == MBProgressHUDAnimationZoomOut) {
bezelView.transform = large;
}
// Perform animations
dispatch_block_t animations = ^{
if (animatingIn) {
bezelView.transform = CGAffineTransformIdentity;
} else if (!animatingIn && type == MBProgressHUDAnimationZoomIn) {
bezelView.transform = large;
} else if (!animatingIn && type == MBProgressHUDAnimationZoomOut) {
bezelView.transform = small;
}
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
bezelView.alpha = animatingIn ? self.opacity : 0.f;
#pragma clang diagnostic pop
self.backgroundView.alpha = animatingIn ? 1.f : 0.f;
};
// Spring animations are nicer, but only available on iOS 7+
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 70000
if (kCFCoreFoundationVersionNumber >= kCFCoreFoundationVersionNumber_iOS_7_0) {
[UIView animateWithDuration:0.3 delay:0. usingSpringWithDamping:1.f initialSpringVelocity:0.f options:UIViewAnimationOptionBeginFromCurrentState animations:animations completion:completion];
return;
}
#endif
[UIView animateWithDuration:0.3 delay:0. options:UIViewAnimationOptionBeginFromCurrentState animations:animations completion:completion];
}
- (void)done {
[NSObject cancelPreviousPerformRequestsWithTarget:self];
self.alpha = 0.0f;
if (self.removeFromSuperViewOnHide) {
[self removeFromSuperview];
}
if (self.completionBlock) {
self.completionBlock();
self.completionBlock = NULL;
}
id<MBProgressHUDDelegate> delegate = self.delegate;
if ([delegate respondsToSelector:@selector(hudWasHidden:)]) {
[delegate performSelector:@selector(hudWasHidden:) withObject:self];
}
}
#pragma mark - UI
- (void)setupViews {
UIColor *defaultColor = self.contentColor;
MBBackgroundView *backgroundView = [[MBBackgroundView alloc] initWithFrame:self.bounds];
backgroundView.style = MBProgressHUDBackgroundStyleSolidColor;
backgroundView.backgroundColor = [UIColor clearColor];
backgroundView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
backgroundView.alpha = 0.f;
[self addSubview:backgroundView];
_backgroundView = backgroundView;
MBBackgroundView *bezelView = [MBBackgroundView new];
bezelView.translatesAutoresizingMaskIntoConstraints = NO;
bezelView.layer.cornerRadius = 5.f;
bezelView.alpha = 0.f;
[self addSubview:bezelView];
_bezelView = bezelView;
[self updateBezelMotionEffects];
UILabel *label = [UILabel new];
label.adjustsFontSizeToFitWidth = NO;
label.textAlignment = NSTextAlignmentCenter;
label.textColor = defaultColor;
label.font = [UIFont boldSystemFontOfSize:MBDefaultLabelFontSize];;
_label = label;
UILabel *detailsLabel = [UILabel new];
detailsLabel.adjustsFontSizeToFitWidth = NO;
detailsLabel.textAlignment = NSTextAlignmentCenter;
detailsLabel.textColor = defaultColor;
detailsLabel.numberOfLines = 0;
detailsLabel.font = [UIFont boldSystemFontOfSize:MBDefaultDetailsLabelFontSize];
_detailsLabel = detailsLabel;
UIButton *button = [MBProgressHUDRoundedButton buttonWithType:UIButtonTypeCustom];
button.titleLabel.textAlignment = NSTextAlignmentCenter;
button.titleLabel.font = [UIFont boldSystemFontOfSize:MBDefaultDetailsLabelFontSize];
[button setTitleColor:defaultColor forState:UIControlStateNormal];
_button = button;
for (UIView *view in @[label, detailsLabel, button]) {
view.translatesAutoresizingMaskIntoConstraints = NO;
[view setContentCompressionResistancePriority:998.f forAxis:UILayoutConstraintAxisHorizontal];
[view setContentCompressionResistancePriority:998.f forAxis:UILayoutConstraintAxisVertical];
[bezelView addSubview:view];
}
UIView *topSpacer = [UIView new];
topSpacer.translatesAutoresizingMaskIntoConstraints = NO;
topSpacer.hidden = YES;
[bezelView addSubview:topSpacer];
_topSpacer = topSpacer;
UIView *bottomSpacer = [UIView new];
bottomSpacer.translatesAutoresizingMaskIntoConstraints = NO;
bottomSpacer.hidden = YES;
[bezelView addSubview:bottomSpacer];
_bottomSpacer = bottomSpacer;
}
- (void)updateIndicators {
UIView *indicator = self.indicator;
BOOL isActivityIndicator = [indicator isKindOfClass:[UIActivityIndicatorView class]];
BOOL isRoundIndicator = [indicator isKindOfClass:[MBRoundProgressView class]];
MBProgressHUDMode mode = self.mode;
if (mode == MBProgressHUDModeIndeterminate) {
if (!isActivityIndicator) {
// Update to indeterminate indicator
[indicator removeFromSuperview];
indicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
[(UIActivityIndicatorView *)indicator startAnimating];
[self.bezelView addSubview:indicator];
}
}
else if (mode == MBProgressHUDModeDeterminateHorizontalBar) {
// Update to bar determinate indicator
[indicator removeFromSuperview];
indicator = [[MBBarProgressView alloc] init];
[self.bezelView addSubview:indicator];
}
else if (mode == MBProgressHUDModeDeterminate || mode == MBProgressHUDModeAnnularDeterminate) {
if (!isRoundIndicator) {
// Update to determinante indicator
[indicator removeFromSuperview];
indicator = [[MBRoundProgressView alloc] init];
[self.bezelView addSubview:indicator];
}
if (mode == MBProgressHUDModeAnnularDeterminate) {
[(MBRoundProgressView *)indicator setAnnular:YES];
}
}
else if (mode == MBProgressHUDModeCustomView && self.customView != indicator) {
// Update custom view indicator
[indicator removeFromSuperview];
indicator = self.customView;
[self.bezelView addSubview:indicator];
}
else if (mode == MBProgressHUDModeText) {
[indicator removeFromSuperview];
indicator = nil;
}
indicator.translatesAutoresizingMaskIntoConstraints = NO;
self.indicator = indicator;
if ([indicator respondsToSelector:@selector(setProgress:)]) {
[(id)indicator setValue:@(self.progress) forKey:@"progress"];
}
[indicator setContentCompressionResistancePriority:998.f forAxis:UILayoutConstraintAxisHorizontal];
[indicator setContentCompressionResistancePriority:998.f forAxis:UILayoutConstraintAxisVertical];
[self updateViewsForColor:self.contentColor];
[self setNeedsUpdateConstraints];
}
- (void)updateViewsForColor:(UIColor *)color {
if (!color) return;
self.label.textColor = color;
self.detailsLabel.textColor = color;
[self.button setTitleColor:color forState:UIControlStateNormal];
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
if (self.activityIndicatorColor) {
color = self.activityIndicatorColor;
}
#pragma clang diagnostic pop
UIView *indicator = self.indicator;
if ([indicator isKindOfClass:[UIActivityIndicatorView class]]) {
((UIActivityIndicatorView *)indicator).color = color;
} else if ([indicator isKindOfClass:[MBRoundProgressView class]]) {
((MBRoundProgressView *)indicator).progressTintColor = color;
((MBRoundProgressView *)indicator).backgroundTintColor = [color colorWithAlphaComponent:0.1];
} else if ([indicator isKindOfClass:[MBBarProgressView class]]) {
((MBBarProgressView *)indicator).progressColor = color;
((MBBarProgressView *)indicator).lineColor = color;
} else {
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 70000
if ([indicator respondsToSelector:@selector(setTintColor:)]) {
[indicator setTintColor:color];
}
#endif
}
}
- (void)updateBezelMotionEffects {
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 70000
MBBackgroundView *bezelView = self.bezelView;
if (![bezelView respondsToSelector:@selector(addMotionEffect:)]) return;
if (self.defaultMotionEffectsEnabled) {
CGFloat effectOffset = 10.f;
UIInterpolatingMotionEffect *effectX = [[UIInterpolatingMotionEffect alloc] initWithKeyPath:@"center.x" type:UIInterpolatingMotionEffectTypeTiltAlongHorizontalAxis];
effectX.maximumRelativeValue = @(effectOffset);
effectX.minimumRelativeValue = @(-effectOffset);
UIInterpolatingMotionEffect *effectY = [[UIInterpolatingMotionEffect alloc] initWithKeyPath:@"center.y" type:UIInterpolatingMotionEffectTypeTiltAlongVerticalAxis];
effectY.maximumRelativeValue = @(effectOffset);
effectY.minimumRelativeValue = @(-effectOffset);
UIMotionEffectGroup *group = [[UIMotionEffectGroup alloc] init];
group.motionEffects = @[effectX, effectY];
[bezelView addMotionEffect:group];
} else {
NSArray *effects = [bezelView motionEffects];
for (UIMotionEffect *effect in effects) {
[bezelView removeMotionEffect:effect];
}
}
#endif
}
#pragma mark - Layout
- (void)updateConstraints {
UIView *bezel = self.bezelView;
UIView *topSpacer = self.topSpacer;
UIView *bottomSpacer = self.bottomSpacer;
CGFloat margin = self.margin;
NSMutableArray *bezelConstraints = [NSMutableArray array];
NSDictionary *metrics = @{@"margin": @(margin)};
NSMutableArray *subviews = [NSMutableArray arrayWithObjects:self.topSpacer, self.label, self.detailsLabel, self.button, self.bottomSpacer, nil];
if (self.indicator) [subviews insertObject:self.indicator atIndex:1];
// Remove existing constraintes
[self removeConstraints:self.constraints];
[topSpacer removeConstraints:topSpacer.constraints];
[bottomSpacer removeConstraints:bottomSpacer.constraints];
if (self.bezelConstraints) {
[bezel removeConstraints:self.bezelConstraints];
self.bezelConstraints = nil;
}
// Center bezel in container (self), applying the offset if set
CGPoint offset = self.offset;
NSMutableArray *centeringConstraints = [NSMutableArray array];
[centeringConstraints addObject:[NSLayoutConstraint constraintWithItem:bezel attribute:NSLayoutAttributeCenterX relatedBy:NSLayoutRelationEqual toItem:self attribute:NSLayoutAttributeCenterX multiplier:1.f constant:offset.x]];
[centeringConstraints addObject:[NSLayoutConstraint constraintWithItem:bezel attribute:NSLayoutAttributeCenterY relatedBy:NSLayoutRelationEqual toItem:self attribute:NSLayoutAttributeCenterY multiplier:1.f constant:offset.y]];
[self applyPriority:998.f toConstraints:centeringConstraints];
[self addConstraints:centeringConstraints];
// Ensure minimum side margin is kept
NSMutableArray *sideConstraints = [NSMutableArray array];
[sideConstraints addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"|-(>=margin)-[bezel]-(>=margin)-|" options:0 metrics:metrics views:NSDictionaryOfVariableBindings(bezel)]];
[sideConstraints addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|-(>=margin)-[bezel]-(>=margin)-|" options:0 metrics:metrics views:NSDictionaryOfVariableBindings(bezel)]];
[self applyPriority:999.f toConstraints:sideConstraints];
[self addConstraints:sideConstraints];
// Minimum bezel size, if set
CGSize minimumSize = self.minSize;
if (!CGSizeEqualToSize(minimumSize, CGSizeZero)) {
NSMutableArray *minSizeConstraints = [NSMutableArray array];
[minSizeConstraints addObject:[NSLayoutConstraint constraintWithItem:bezel attribute:NSLayoutAttributeWidth relatedBy:NSLayoutRelationGreaterThanOrEqual toItem:nil attribute:NSLayoutAttributeNotAnAttribute multiplier:1.f constant:minimumSize.width]];
[minSizeConstraints addObject:[NSLayoutConstraint constraintWithItem:bezel attribute:NSLayoutAttributeHeight relatedBy:NSLayoutRelationGreaterThanOrEqual toItem:nil attribute:NSLayoutAttributeNotAnAttribute multiplier:1.f constant:minimumSize.height]];
[self applyPriority:997.f toConstraints:minSizeConstraints];
[bezelConstraints addObjectsFromArray:minSizeConstraints];
}
// Square aspect ratio, if set
if (self.square) {
NSLayoutConstraint *square = [NSLayoutConstraint constraintWithItem:bezel attribute:NSLayoutAttributeHeight relatedBy:NSLayoutRelationEqual toItem:bezel attribute:NSLayoutAttributeWidth multiplier:1.f constant:0];
square.priority = 997.f;
[bezelConstraints addObject:square];
}
// Top and bottom spacing
[topSpacer addConstraint:[NSLayoutConstraint constraintWithItem:topSpacer attribute:NSLayoutAttributeHeight relatedBy:NSLayoutRelationGreaterThanOrEqual toItem:nil attribute:NSLayoutAttributeNotAnAttribute multiplier:1.f constant:margin]];
[bottomSpacer addConstraint:[NSLayoutConstraint constraintWithItem:bottomSpacer attribute:NSLayoutAttributeHeight relatedBy:NSLayoutRelationGreaterThanOrEqual toItem:nil attribute:NSLayoutAttributeNotAnAttribute multiplier:1.f constant:margin]];
// Top and bottom spaces should be equal
[bezelConstraints addObject:[NSLayoutConstraint constraintWithItem:topSpacer attribute:NSLayoutAttributeHeight relatedBy:NSLayoutRelationEqual toItem:bottomSpacer attribute:NSLayoutAttributeHeight multiplier:1.f constant:0.f]];
// Layout subviews in bezel
NSMutableArray *paddingConstraints = [NSMutableArray new];
[subviews enumerateObjectsUsingBlock:^(UIView *view, NSUInteger idx, BOOL *stop) {
// Center in bezel
[bezelConstraints addObject:[NSLayoutConstraint constraintWithItem:view attribute:NSLayoutAttributeCenterX relatedBy:NSLayoutRelationEqual toItem:bezel attribute:NSLayoutAttributeCenterX multiplier:1.f constant:0.f]];
// Ensure the minimum edge margin is kept
[bezelConstraints addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"|-(>=margin)-[view]-(>=margin)-|" options:0 metrics:metrics views:NSDictionaryOfVariableBindings(view)]];
// Element spacing
if (idx == 0) {
// First, ensure spacing to bezel edge
[bezelConstraints addObject:[NSLayoutConstraint constraintWithItem:view attribute:NSLayoutAttributeTop relatedBy:NSLayoutRelationEqual toItem:bezel attribute:NSLayoutAttributeTop multiplier:1.f constant:0.f]];
} else if (idx == subviews.count - 1) {
// Last, ensure spacigin to bezel edge
[bezelConstraints addObject:[NSLayoutConstraint constraintWithItem:view attribute:NSLayoutAttributeBottom relatedBy:NSLayoutRelationEqual toItem:bezel attribute:NSLayoutAttributeBottom multiplier:1.f constant:0.f]];
}
if (idx > 0) {
// Has previous
NSLayoutConstraint *padding = [NSLayoutConstraint constraintWithItem:view attribute:NSLayoutAttributeTop relatedBy:NSLayoutRelationEqual toItem:subviews[idx - 1] attribute:NSLayoutAttributeBottom multiplier:1.f constant:0.f];
[bezelConstraints addObject:padding];
[paddingConstraints addObject:padding];
}
}];
[bezel addConstraints:bezelConstraints];
self.bezelConstraints = bezelConstraints;
self.paddingConstraints = [paddingConstraints copy];
[self updatePaddingConstraints];
[super updateConstraints];
}
- (void)layoutSubviews {
[self updatePaddingConstraints];
[super layoutSubviews];
}
- (void)updatePaddingConstraints {
// Set padding dynamically, depending on whether the view is visible or not
__block BOOL hasVisibleAncestors = NO;
[self.paddingConstraints enumerateObjectsUsingBlock:^(NSLayoutConstraint *padding, NSUInteger idx, BOOL *stop) {
UIView *firstView = (UIView *)padding.firstItem;
UIView *secondView = (UIView *)padding.secondItem;
BOOL firstVisible = !firstView.hidden && !CGSizeEqualToSize(firstView.intrinsicContentSize, CGSizeZero);
BOOL secondVisible = !secondView.hidden && !CGSizeEqualToSize(secondView.intrinsicContentSize, CGSizeZero);
// Set if both views are visible of if there's a visible view on top that yet doesn't have padding
// added relative to the current view
padding.constant = (firstVisible && (secondVisible || hasVisibleAncestors)) ? MBDefaultPadding : 0.f;
hasVisibleAncestors |= secondVisible;
}];
}
- (void)applyPriority:(UILayoutPriority)priority toConstraints:(NSArray *)constraints {
for (NSLayoutConstraint *constraint in constraints) {
constraint.priority = priority;
}
}
#pragma mark - Properties
- (void)setMode:(MBProgressHUDMode)mode {
if (mode != _mode) {
_mode = mode;
[self updateIndicators];
}
}
- (void)setCustomView:(UIView *)customView {
if (customView != _customView) {
_customView = customView;
if (self.mode == MBProgressHUDModeCustomView) {
[self updateIndicators];
}
}
}
- (void)setOffset:(CGPoint)offset {
if (!CGPointEqualToPoint(offset, _offset)) {
_offset = offset;
[self setNeedsUpdateConstraints];
}
}
- (void)setMargin:(CGFloat)margin {
if (margin != margin) {
_margin = margin;
[self setNeedsUpdateConstraints];
}
}
- (void)setMinSize:(CGSize)minSize {
if (!CGSizeEqualToSize(minSize, _minSize)) {
_minSize = minSize;
[self setNeedsUpdateConstraints];
}
}
- (void)setSquare:(BOOL)square {
if (square != _square) {
_square = square;
[self setNeedsUpdateConstraints];
}
}
- (void)setProgress:(float)progress {
if (progress != _progress) {
_progress = progress;
UIView *indicator = self.indicator;
if ([indicator respondsToSelector:@selector(setProgress:)]) {
[(id)indicator setValue:@(self.progress) forKey:@"progress"];
}
}
}
- (void)setContentColor:(UIColor *)contentColor {
if (contentColor != _contentColor && ![contentColor isEqual:_contentColor]) {
_contentColor = contentColor;
[self updateViewsForColor:contentColor];
}
}
- (void)setDefaultMotionEffectsEnabled:(BOOL)defaultMotionEffectsEnabled {
if (defaultMotionEffectsEnabled != _defaultMotionEffectsEnabled) {
_defaultMotionEffectsEnabled = defaultMotionEffectsEnabled;
[self updateBezelMotionEffects];
}
}
#pragma mark - Notifications
- (void)registerForNotifications {
#if !TARGET_OS_TV
NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
[nc addObserver:self selector:@selector(statusBarOrientationDidChange:)
name:UIApplicationDidChangeStatusBarOrientationNotification object:nil];
#endif
}
- (void)unregisterFromNotifications {
#if !TARGET_OS_TV
NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
[nc removeObserver:self name:UIApplicationDidChangeStatusBarOrientationNotification object:nil];
#endif
}
#if !TARGET_OS_TV
- (void)statusBarOrientationDidChange:(NSNotification *)notification {
UIView *superview = self.superview;
if (!superview) {
return;
} else {
[self updateForCurrentOrientationAnimated:YES];
}
}
#endif
- (void)updateForCurrentOrientationAnimated:(BOOL)animated {
// Stay in sync with the superview in any case
if (self.superview) {
self.bounds = self.superview.bounds;
}
// Not needed on iOS 8+, compile out when the deployment target allows,
// to avoid sharedApplication problems on extension targets
#if __IPHONE_OS_VERSION_MIN_REQUIRED < 80000
// Only needed pre iOS 8 when added to a window
BOOL iOS8OrLater = kCFCoreFoundationVersionNumber >= kCFCoreFoundationVersionNumber_iOS_8_0;
if (iOS8OrLater || ![self.superview isKindOfClass:[UIWindow class]]) return;
UIInterfaceOrientation orientation = [UIApplication sharedApplication].statusBarOrientation;
CGFloat radians = 0;
if (UIInterfaceOrientationIsLandscape(orientation)) {
radians = orientation == UIInterfaceOrientationLandscapeLeft ? -(CGFloat)M_PI_2 : (CGFloat)M_PI_2;
// Window coordinates differ!
self.bounds = CGRectMake(0, 0, self.bounds.size.height, self.bounds.size.width);
} else {
radians = orientation == UIInterfaceOrientationPortraitUpsideDown ? (CGFloat)M_PI : 0.f;
}
if (animated) {
[UIView animateWithDuration:0.3 animations:^{
self.transform = CGAffineTransformMakeRotation(radians);
}];
} else {
self.transform = CGAffineTransformMakeRotation(radians);
}
#endif
}
@end
@implementation MBRoundProgressView
#pragma mark - Lifecycle
- (id)init {
return [self initWithFrame:CGRectMake(0.f, 0.f, 37.f, 37.f)];
}
- (id)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self) {
self.backgroundColor = [UIColor clearColor];
self.opaque = NO;
_progress = 0.f;
_annular = NO;
_progressTintColor = [[UIColor alloc] initWithWhite:1.f alpha:1.f];
_backgroundTintColor = [[UIColor alloc] initWithWhite:1.f alpha:.1f];
}
return self;
}
#pragma mark - Layout
- (CGSize)intrinsicContentSize {
return CGSizeMake(37.f, 37.f);
}
#pragma mark - Properties
- (void)setProgress:(float)progress {
if (progress != _progress) {
_progress = progress;
[self setNeedsDisplay];
}
}
- (void)setProgressTintColor:(UIColor *)progressTintColor {
NSAssert(progressTintColor, @"The color should not be nil.");
if (progressTintColor != _progressTintColor && ![progressTintColor isEqual:_progressTintColor]) {
_progressTintColor = progressTintColor;
[self setNeedsDisplay];
}
}
- (void)setBackgroundTintColor:(UIColor *)backgroundTintColor {
NSAssert(backgroundTintColor, @"The color should not be nil.");
if (backgroundTintColor != _backgroundTintColor && ![backgroundTintColor isEqual:_backgroundTintColor]) {
_backgroundTintColor = backgroundTintColor;
[self setNeedsDisplay];
}
}
#pragma mark - Drawing
- (void)drawRect:(CGRect)rect {
CGContextRef context = UIGraphicsGetCurrentContext();
BOOL isPreiOS7 = kCFCoreFoundationVersionNumber < kCFCoreFoundationVersionNumber_iOS_7_0;
if (_annular) {
// Draw background
CGFloat lineWidth = isPreiOS7 ? 5.f : 2.f;
UIBezierPath *processBackgroundPath = [UIBezierPath bezierPath];
processBackgroundPath.lineWidth = lineWidth;
processBackgroundPath.lineCapStyle = kCGLineCapButt;
CGPoint center = CGPointMake(CGRectGetMidX(self.bounds), CGRectGetMidY(self.bounds));
CGFloat radius = (self.bounds.size.width - lineWidth)/2;
CGFloat startAngle = - ((float)M_PI / 2); // 90 degrees
CGFloat endAngle = (2 * (float)M_PI) + startAngle;
[processBackgroundPath addArcWithCenter:center radius:radius startAngle:startAngle endAngle:endAngle clockwise:YES];
[_backgroundTintColor set];
[processBackgroundPath stroke];
// Draw progress
UIBezierPath *processPath = [UIBezierPath bezierPath];
processPath.lineCapStyle = isPreiOS7 ? kCGLineCapRound : kCGLineCapSquare;
processPath.lineWidth = lineWidth;
endAngle = (self.progress * 2 * (float)M_PI) + startAngle;
[processPath addArcWithCenter:center radius:radius startAngle:startAngle endAngle:endAngle clockwise:YES];
[_progressTintColor set];
[processPath stroke];
} else {
// Draw background
CGFloat lineWidth = 2.f;
CGRect allRect = self.bounds;
CGRect circleRect = CGRectInset(allRect, lineWidth/2.f, lineWidth/2.f);
CGPoint center = CGPointMake(CGRectGetMidX(self.bounds), CGRectGetMidY(self.bounds));
[_progressTintColor setStroke];
[_backgroundTintColor setFill];
CGContextSetLineWidth(context, lineWidth);
if (isPreiOS7) {
CGContextFillEllipseInRect(context, circleRect);
}
CGContextStrokeEllipseInRect(context, circleRect);
// 90 degrees
CGFloat startAngle = - ((float)M_PI / 2.f);
// Draw progress
if (isPreiOS7) {
CGFloat radius = (CGRectGetWidth(self.bounds) / 2.f) - lineWidth;
CGFloat endAngle = (self.progress * 2.f * (float)M_PI) + startAngle;
[_progressTintColor setFill];
CGContextMoveToPoint(context, center.x, center.y);
CGContextAddArc(context, center.x, center.y, radius, startAngle, endAngle, 0);
CGContextClosePath(context);
CGContextFillPath(context);
} else {
UIBezierPath *processPath = [UIBezierPath bezierPath];
processPath.lineCapStyle = kCGLineCapButt;
processPath.lineWidth = lineWidth * 2.f;
CGFloat radius = (CGRectGetWidth(self.bounds) / 2.f) - (processPath.lineWidth / 2.f);
CGFloat endAngle = (self.progress * 2.f * (float)M_PI) + startAngle;
[processPath addArcWithCenter:center radius:radius startAngle:startAngle endAngle:endAngle clockwise:YES];
// Ensure that we don't get color overlaping when _progressTintColor alpha < 1.f.
CGContextSetBlendMode(context, kCGBlendModeCopy);
[_progressTintColor set];
[processPath stroke];
}
}
}
@end
@implementation MBBarProgressView
#pragma mark - Lifecycle
- (id)init {
return [self initWithFrame:CGRectMake(.0f, .0f, 120.0f, 20.0f)];
}
- (id)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self) {
_progress = 0.f;
_lineColor = [UIColor whiteColor];
_progressColor = [UIColor whiteColor];
_progressRemainingColor = [UIColor clearColor];
self.backgroundColor = [UIColor clearColor];
self.opaque = NO;
}
return self;
}
#pragma mark - Layout
- (CGSize)intrinsicContentSize {
BOOL isPreiOS7 = kCFCoreFoundationVersionNumber < kCFCoreFoundationVersionNumber_iOS_7_0;
return CGSizeMake(120.f, isPreiOS7 ? 20.f : 10.f);
}
#pragma mark - Properties
- (void)setProgress:(float)progress {
if (progress != _progress) {
_progress = progress;
[self setNeedsDisplay];
}
}
- (void)setProgressColor:(UIColor *)progressColor {
NSAssert(progressColor, @"The color should not be nil.");
if (progressColor != _progressColor && ![progressColor isEqual:_progressColor]) {
_progressColor = progressColor;
[self setNeedsDisplay];
}
}
- (void)setProgressRemainingColor:(UIColor *)progressRemainingColor {
NSAssert(progressRemainingColor, @"The color should not be nil.");
if (progressRemainingColor != _progressRemainingColor && ![progressRemainingColor isEqual:_progressRemainingColor]) {
_progressRemainingColor = progressRemainingColor;
[self setNeedsDisplay];
}
}
#pragma mark - Drawing
- (void)drawRect:(CGRect)rect {
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetLineWidth(context, 2);
CGContextSetStrokeColorWithColor(context,[_lineColor CGColor]);
CGContextSetFillColorWithColor(context, [_progressRemainingColor CGColor]);
// Draw background
CGFloat radius = (rect.size.height / 2) - 2;
CGContextMoveToPoint(context, 2, rect.size.height/2);
CGContextAddArcToPoint(context, 2, 2, radius + 2, 2, radius);
CGContextAddLineToPoint(context, rect.size.width - radius - 2, 2);
CGContextAddArcToPoint(context, rect.size.width - 2, 2, rect.size.width - 2, rect.size.height / 2, radius);
CGContextAddArcToPoint(context, rect.size.width - 2, rect.size.height - 2, rect.size.width - radius - 2, rect.size.height - 2, radius);
CGContextAddLineToPoint(context, radius + 2, rect.size.height - 2);
CGContextAddArcToPoint(context, 2, rect.size.height - 2, 2, rect.size.height/2, radius);
CGContextFillPath(context);
// Draw border
CGContextMoveToPoint(context, 2, rect.size.height/2);
CGContextAddArcToPoint(context, 2, 2, radius + 2, 2, radius);
CGContextAddLineToPoint(context, rect.size.width - radius - 2, 2);
CGContextAddArcToPoint(context, rect.size.width - 2, 2, rect.size.width - 2, rect.size.height / 2, radius);
CGContextAddArcToPoint(context, rect.size.width - 2, rect.size.height - 2, rect.size.width - radius - 2, rect.size.height - 2, radius);
CGContextAddLineToPoint(context, radius + 2, rect.size.height - 2);
CGContextAddArcToPoint(context, 2, rect.size.height - 2, 2, rect.size.height/2, radius);
CGContextStrokePath(context);
CGContextSetFillColorWithColor(context, [_progressColor CGColor]);
radius = radius - 2;
CGFloat amount = self.progress * rect.size.width;
// Progress in the middle area
if (amount >= radius + 4 && amount <= (rect.size.width - radius - 4)) {
CGContextMoveToPoint(context, 4, rect.size.height/2);
CGContextAddArcToPoint(context, 4, 4, radius + 4, 4, radius);
CGContextAddLineToPoint(context, amount, 4);
CGContextAddLineToPoint(context, amount, radius + 4);
CGContextMoveToPoint(context, 4, rect.size.height/2);
CGContextAddArcToPoint(context, 4, rect.size.height - 4, radius + 4, rect.size.height - 4, radius);
CGContextAddLineToPoint(context, amount, rect.size.height - 4);
CGContextAddLineToPoint(context, amount, radius + 4);
CGContextFillPath(context);
}
// Progress in the right arc
else if (amount > radius + 4) {
CGFloat x = amount - (rect.size.width - radius - 4);
CGContextMoveToPoint(context, 4, rect.size.height/2);
CGContextAddArcToPoint(context, 4, 4, radius + 4, 4, radius);
CGContextAddLineToPoint(context, rect.size.width - radius - 4, 4);
CGFloat angle = -acos(x/radius);
if (isnan(angle)) angle = 0;
CGContextAddArc(context, rect.size.width - radius - 4, rect.size.height/2, radius, M_PI, angle, 0);
CGContextAddLineToPoint(context, amount, rect.size.height/2);
CGContextMoveToPoint(context, 4, rect.size.height/2);
CGContextAddArcToPoint(context, 4, rect.size.height - 4, radius + 4, rect.size.height - 4, radius);
CGContextAddLineToPoint(context, rect.size.width - radius - 4, rect.size.height - 4);
angle = acos(x/radius);
if (isnan(angle)) angle = 0;
CGContextAddArc(context, rect.size.width - radius - 4, rect.size.height/2, radius, -M_PI, angle, 1);
CGContextAddLineToPoint(context, amount, rect.size.height/2);
CGContextFillPath(context);
}
// Progress is in the left arc
else if (amount < radius + 4 && amount > 0) {
CGContextMoveToPoint(context, 4, rect.size.height/2);
CGContextAddArcToPoint(context, 4, 4, radius + 4, 4, radius);
CGContextAddLineToPoint(context, radius + 4, rect.size.height/2);
CGContextMoveToPoint(context, 4, rect.size.height/2);
CGContextAddArcToPoint(context, 4, rect.size.height - 4, radius + 4, rect.size.height - 4, radius);
CGContextAddLineToPoint(context, radius + 4, rect.size.height/2);
CGContextFillPath(context);
}
}
@end
@interface MBBackgroundView ()
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 80000
@property UIVisualEffectView *effectView;
#endif
@property UIToolbar *toolbar;
@end
@implementation MBBackgroundView
#pragma mark - Lifecycle