Helpers

Demo/SpinKit/RTTestViewController.m

@@ -15,7 +15,7 @@ @interface RTTestViewController ()
 
 @implementation RTTestViewController
 
--(void)insertSpinner:(RTSpinKitView*)spinner
+-(void)insertSpinner:(RTSpinKitViewStyle)style
              atIndex:(NSInteger)index
      backgroundColor:(UIColor*)backgroundColor
 {
@@ -24,46 +24,26 @@ -(void)insertSpinner:(RTSpinKitView*)spinner
 
     UIView *panel = [[UIView alloc] initWithFrame:CGRectOffset(screenBounds, screenWidth * index, 0.0)];
     panel.backgroundColor = backgroundColor;
-
-    spinner.center = CGPointMake(CGRectGetMidX(screenBounds), CGRectGetMidY(screenBounds));
-    [spinner startAnimating];
-
-    [panel addSubview:spinner];
+
+    [RTSpinKitView showIn:panel withStyle:style]; // or you can use showIn:(UIView*)view withStyle:(RTSpinKitViewStyle)style andColor:(UIColor*) color
 
     UIScrollView *scrollView = (UIScrollView*)self.view;
     [scrollView addSubview:panel];
 }
 
 -(void)loadView {
+    // you can set params with Appearance proxy
+    // [RTSpinKitView appearance].style for cross application spinner
+    [RTSpinKitView appearance].overlayColor = [UIColor whiteColor];
+    [RTSpinKitView appearance].color = [UIColor whiteColor];
+    [RTSpinKitView appearance].style = RTSpinKitViewStyleWave;
+
     UIScrollView *scrollView = [[UIScrollView alloc] init];
     scrollView.pagingEnabled = YES;
     scrollView.alwaysBounceVertical = NO;
     scrollView.alwaysBounceHorizontal = YES;
     scrollView.backgroundColor = [UIColor darkGrayColor];
     self.view = scrollView;
-
-    [self insertSpinner:[[RTSpinKitView alloc] initWithStyle:RTSpinKitViewStylePlane color:[UIColor whiteColor]]
-                atIndex:0
-        backgroundColor:[UIColor colorWithRed:0.827 green:0.329 blue:0 alpha:1.0]];
-
-    [self insertSpinner:[[RTSpinKitView alloc] initWithStyle:RTSpinKitViewStyleBounce color:[UIColor whiteColor]]
-                atIndex:1
-        backgroundColor:[UIColor colorWithRed:0.173 green:0.243 blue:0.314 alpha:1.0]];
-
-    [self insertSpinner:[[RTSpinKitView alloc] initWithStyle:RTSpinKitViewStyleWave color:[UIColor whiteColor]]
-                atIndex:2
-        backgroundColor:[UIColor colorWithRed:0.102 green:0.737 blue:0.612 alpha:1.0]];
-
-    [self insertSpinner:[[RTSpinKitView alloc] initWithStyle:RTSpinKitViewStyleWanderingCubes color:[UIColor whiteColor]]
-                atIndex:3
-        backgroundColor:[UIColor colorWithRed:0.161 green:0.502 blue:0.725 alpha:1.0]];
-
-    [self insertSpinner:[[RTSpinKitView alloc] initWithStyle:RTSpinKitViewStylePulse color:[UIColor whiteColor]]
-                atIndex:4
-        backgroundColor:[UIColor colorWithRed:0.498 green:0.549 blue:0.553 alpha:1.0]];
-
-    CGRect screenBounds = [[UIScreen mainScreen] bounds];
-    scrollView.contentSize = CGSizeMake(5 * CGRectGetWidth(screenBounds), CGRectGetHeight(screenBounds));
 }
 
 -(UIStatusBarStyle)preferredStatusBarStyle {
@@ -76,6 +56,36 @@ - (void)viewDidLoad
     // Do any additional setup after loading the view.
 }
 
+-(void)viewDidAppear:(BOOL)animated {
+  [RTSpinKitView showOverlay:0.5f];
+    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
+      [RTSpinKitView hideOverlay];
+
+      [self insertSpinner:RTSpinKitViewStylePlane
+                  atIndex:0
+          backgroundColor:[UIColor colorWithRed:0.827 green:0.329 blue:0 alpha:1.0]];
+
+      [self insertSpinner:RTSpinKitViewStyleBounce
+                  atIndex:1
+          backgroundColor:[UIColor colorWithRed:0.173 green:0.243 blue:0.314 alpha:1.0]];
+
+      [self insertSpinner:RTSpinKitViewStyleWave
+                  atIndex:2
+          backgroundColor:[UIColor colorWithRed:0.102 green:0.737 blue:0.612 alpha:1.0]];
+
+      [self insertSpinner:RTSpinKitViewStyleWanderingCubes
+                  atIndex:3
+          backgroundColor:[UIColor colorWithRed:0.161 green:0.502 blue:0.725 alpha:1.0]];
+
+      [self insertSpinner:RTSpinKitViewStylePulse
+                  atIndex:4
+          backgroundColor:[UIColor colorWithRed:0.498 green:0.549 blue:0.553 alpha:1.0]];
+
+      CGRect screenBounds = [[UIScreen mainScreen] bounds];
+      ((UIScrollView*) self.view).contentSize = CGSizeMake(5 * CGRectGetWidth(screenBounds), CGRectGetHeight(screenBounds));
+    });
+}
+
 - (void)didReceiveMemoryWarning
 {
     [super didReceiveMemoryWarning];

README.md

@@ -18,6 +18,22 @@ Available styles:
 * `RTSpinKitViewStyleWave`
 * `RTSpinKitViewStyleWanderingCubes`
 * `RTSpinKitViewStylePulse`
+
+You can user static helpers:
+
+    [RTSpinKitView showIn:self.view withStyle:RTSpinKitViewStyleWave andColor:[UIColor whiteColor]];
+    [RTSpinKitView hideIn:self.view];
+
+Also you can set style and color across your application with Apperance proxy:
+
+    // setup in AppDelegate 
+    [RTSpinKitView appearance].color = [UIColor whiteColor];
+    [RTSpinKitView appearance].style = RTSpinKitViewStyleWave;
+    ...
+    // use anyway one-style spinner
+    [RTSpinKitView showIn:self.view];
+
+
 
 MBProgressHUD
 -------------

SpinKit/RTSpinKitView.h

@@ -18,9 +18,36 @@ typedef NS_ENUM(NSInteger, RTSpinKitViewStyle) {
 
 @interface RTSpinKitView : UIView
 
-@property (nonatomic, strong) UIColor *color;
+@property (nonatomic, strong) UIColor *color UI_APPEARANCE_SELECTOR;
+// this property is using through appearance proxy only 
+@property (nonatomic, strong) UIColor *overlayColor UI_APPEARANCE_SELECTOR;
+@property (nonatomic, assign) RTSpinKitViewStyle style UI_APPEARANCE_SELECTOR;
 @property (nonatomic, assign) BOOL hidesWhenStopped;
 
+// show overlay with specific alpha, getting color and style from appearance proxy
++(instancetype)showOverlay:(float)alpha;
+
+// show overlay with specific alpha, colored and styled spinner as subview
++(instancetype)showOverlay:(float)alpha withStyle:(RTSpinKitViewStyle)style andColor:(UIColor*) color;
+
+// hide overlay view with spinner
++(void)hideOverlay;
+
+// show with settings, which you can set withing appearance proxy
+// fe [RTSpinKitView appearance].style = RTSpinKitViewStyleBounce;
+//    [RTSpinKitView appearance].color = [UIColor whiteColor];
++(instancetype)showIn:(UIView*)view;
+
+// show with color settings, which you can set withing appearance proxy
+// fe [RTSpinKitView appearance].color = [UIColor whiteColor];
++(instancetype)showIn:(UIView*)view withStyle:(RTSpinKitViewStyle)style;
+
+// create and show spinner in specific view
++(instancetype)showIn:(UIView*)view withStyle:(RTSpinKitViewStyle)style andColor:(UIColor*) color;
+
+// find and hide spinner in specific view
++(void)hideIn:(UIView*)view;
+
 -(instancetype)initWithStyle:(RTSpinKitViewStyle)style;
 -(instancetype)initWithStyle:(RTSpinKitViewStyle)style color:(UIColor*)color;
 

SpinKit/RTSpinKitView.m

@@ -24,12 +24,84 @@ static CATransform3D RTSpinKit3DRotationWithPerspective(CGFloat perspective,
 }
 
 @interface RTSpinKitView ()
-@property (nonatomic, assign) RTSpinKitViewStyle style;
 @property (nonatomic, assign, getter = isStopped) BOOL stopped;
 @end
 
+static int SPIN_OVERLAY_TAG = 1111;
+
 @implementation RTSpinKitView
 
+// show overlay with specific alpha, getting color and style from appearance proxy
++(instancetype)showOverlay:(float)alpha {
+  if (![RTSpinKitView appearance].color) [RTSpinKitView appearance].color = [UIColor blackColor];
+  return [RTSpinKitView showOverlay:alpha withStyle:[RTSpinKitView appearance].style andColor:[RTSpinKitView appearance].color];
+}
+
+// show overlay with specific alpha, colored and styled spinner as subview
++(instancetype)showOverlay:(float)alpha withStyle:(RTSpinKitViewStyle)style andColor:(UIColor*) color {
+  UIWindow* window = [[UIApplication sharedApplication] keyWindow];
+  UIView* overlay = [UIView new];
+  overlay.tag = SPIN_OVERLAY_TAG;
+  overlay.frame = window.frame;
+  overlay.alpha = alpha;
+  UIColor* overlayColor = [RTSpinKitView appearance].overlayColor;
+  if (!overlayColor) overlayColor = [UIColor blackColor];
+  // get color from appearance proxy 
+  overlay.backgroundColor = overlayColor;
+  [window addSubview:overlay];
+  // add as window child to prevent alpha influence
+  return [RTSpinKitView showIn:window];
+}
+
+// show with settings, which you can set withing appearance proxy
+// fe [RTSpinKitView appearance].style = RTSpinKitViewStyleBounce;
+//    [RTSpinKitView appearance].color = [UIColor whiteColor];
++(instancetype)showIn:(UIView*)view {
+  if (![RTSpinKitView appearance].color) [RTSpinKitView appearance].color = [UIColor blackColor];
+  return [RTSpinKitView showIn:view
+                     withStyle:[RTSpinKitView appearance].style
+                      andColor:[RTSpinKitView appearance].color];
+}
+
+// show with color settings, which you can set withing appearance proxy
+// fe [RTSpinKitView appearance].color = [UIColor whiteColor];
++(instancetype)showIn:(UIView*)view withStyle:(RTSpinKitViewStyle)style {
+  if (![RTSpinKitView appearance].color) [RTSpinKitView appearance].color = [UIColor blackColor];
+  return [RTSpinKitView showIn:view
+                     withStyle:style
+                      andColor:[RTSpinKitView appearance].color];
+}
+
+// create and show spinner in specific view
++(instancetype)showIn:(UIView*)view withStyle:(RTSpinKitViewStyle)style andColor:(UIColor*) color {
+  RTSpinKitView* spinner = [[RTSpinKitView alloc] initWithStyle:style color:color];
+  // show spinner in the superview center
+  spinner.center = CGPointMake(CGRectGetMidX(view.bounds), CGRectGetMidY(view.bounds));
+  spinner.hidesWhenStopped = YES;
+  [spinner startAnimating];
+  [view addSubview:spinner];
+  return spinner;
+}
+
+// hide overlay view with spinner
++(void)hideOverlay {
+  UIWindow* window = [[UIApplication sharedApplication] keyWindow];
+  for (UIView* sub in window.subviews) {
+    if (sub.tag == SPIN_OVERLAY_TAG || [sub isKindOfClass:[RTSpinKitView class]]) {
+      [sub removeFromSuperview];
+    }
+  }
+}
+
+// find and hide spinner in specific view
++(void)hideIn:(UIView*) view {
+  for (UIView* sub in view.subviews) {
+    if ([sub isKindOfClass:[RTSpinKitView class]]) {
+      [sub removeFromSuperview];
+    }
+  }
+}
+
 -(instancetype)initWithStyle:(RTSpinKitViewStyle)style {
     return [self initWithStyle:style color:[UIColor grayColor]];
 }
@@ -38,7 +110,7 @@ -(instancetype)initWithStyle:(RTSpinKitViewStyle)style color:(UIColor*)color {
     self = [super init];
     if (self) {
         _style = style;
-        _color = color;
+        [self setColor:color];
         _hidesWhenStopped = YES;
 
         [self sizeToFit];