Nextrek
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// AFNetworkActivityIndicatorManager.m // // Copyright (c) 2011 Gowalla (http://gowalla.com/) // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal // in the Software without restriction, including without limitation the rights // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN // THE SOFTWARE. #import "AFNetworkActivityIndicatorManager.h" #import "AFHTTPRequestOperation.h" #if __IPHONE_OS_VERSION_MIN_REQUIRED static NSTimeInterval const kAFNetworkActivityIndicatorInvisibilityDelay = 0.17; @interface AFNetworkActivityIndicatorManager () @property (readwrite, assign) NSInteger activityCount; @property (readwrite, nonatomic, retain) NSTimer *activityIndicatorVisibilityTimer; @property (readonly, getter = isNetworkActivityIndicatorVisible) BOOL networkActivityIndicatorVisible; - (void)updateNetworkActivityIndicatorVisibility; - (void)updateNetworkActivityIndicatorVisibilityDelayed; @end @implementation AFNetworkActivityIndicatorManager @synthesize activityCount = _activityCount; @synthesize activityIndicatorVisibilityTimer = _activityIndicatorVisibilityTimer; @synthesize enabled = _enabled; @dynamic networkActivityIndicatorVisible; + (AFNetworkActivityIndicatorManager *)sharedManager { static AFNetworkActivityIndicatorManager *_sharedManager = nil; static dispatch_once_t oncePredicate; dispatch_once(&oncePredicate, ^{ _sharedManager = [[self alloc] init]; }); return _sharedManager; } + (NSSet *)keyPathsForValuesAffectingIsNetworkActivityIndicatorVisible { return [NSSet setWithObject:@"activityCount"]; } - (id)init { self = [super init]; if (!self) { return nil; } [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(incrementActivityCount) name:AFNetworkingOperationDidStartNotification object:nil]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(decrementActivityCount) name:AFNetworkingOperationDidFinishNotification object:nil]; return self; } - (void)dealloc { [[NSNotificationCenter defaultCenter] removeObserver:self]; [_activityIndicatorVisibilityTimer invalidate]; [_activityIndicatorVisibilityTimer release]; _activityIndicatorVisibilityTimer = nil; [super dealloc]; } - (void)updateNetworkActivityIndicatorVisibilityDelayed { if (self.enabled) { // Delay hiding of activity indicator for a short interval, to avoid flickering if (![self isNetworkActivityIndicatorVisible]) { [self.activityIndicatorVisibilityTimer invalidate]; self.activityIndicatorVisibilityTimer = [NSTimer timerWithTimeInterval:kAFNetworkActivityIndicatorInvisibilityDelay target:self selector:@selector(updateNetworkActivityIndicatorVisibility) userInfo:nil repeats:NO]; [[NSRunLoop mainRunLoop] addTimer:self.activityIndicatorVisibilityTimer forMode:NSRunLoopCommonModes]; } else { [self performSelectorOnMainThread:@selector(updateNetworkActivityIndicatorVisibility) withObject:nil waitUntilDone:NO modes:[NSArray arrayWithObject:NSRunLoopCommonModes]]; } } } - (BOOL)isNetworkActivityIndicatorVisible { return _activityCount > 0; } - (void)updateNetworkActivityIndicatorVisibility { [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:[self isNetworkActivityIndicatorVisible]]; } // Not exposed, but used if activityCount is set via KVC. - (NSInteger)activityCount { return _activityCount; } - (void)setActivityCount:(NSInteger)activityCount { @synchronized(self) { _activityCount = activityCount; } [self updateNetworkActivityIndicatorVisibilityDelayed]; } - (void)incrementActivityCount { [self willChangeValueForKey:@"activityCount"]; @synchronized(self) { _activityCount++; } [self didChangeValueForKey:@"activityCount"]; [self updateNetworkActivityIndicatorVisibilityDelayed]; } - (void)decrementActivityCount { [self willChangeValueForKey:@"activityCount"]; @synchronized(self) { _activityCount--; } [self didChangeValueForKey:@"activityCount"]; [self updateNetworkActivityIndicatorVisibilityDelayed]; } @end #endif |
Commits for Nextrek/iOS/PocketVision/PocketVision/Shared/Networking/ExternalLibraries/AFNetworking/AFNetworkActivityIndicatorManager.m
Revision | Author | Commited | Message |
---|---|---|---|
62 | FAquili | Sat 18 Jan, 2014 16:39:26 +0000 | PocketVision 1.0 |