137 lines
5.4 KiB
Objective-C
137 lines
5.4 KiB
Objective-C
/*
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File: AAPLProgressViewController.m
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Abstract: A view controller that demonstrates how to use UIProgressView.
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Version: 2.12
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Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
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Inc. ("Apple") in consideration of your agreement to the following
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terms, and your use, installation, modification or redistribution of
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this Apple software constitutes acceptance of these terms. If you do
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not agree with these terms, please do not use, install, modify or
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redistribute this Apple software.
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In consideration of your agreement to abide by the following terms, and
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subject to these terms, Apple grants you a personal, non-exclusive
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license, under Apple's copyrights in this original Apple software (the
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"Apple Software"), to use, reproduce, modify and redistribute the Apple
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Software, with or without modifications, in source and/or binary forms;
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provided that if you redistribute the Apple Software in its entirety and
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without modifications, you must retain this notice and the following
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text and disclaimers in all such redistributions of the Apple Software.
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Neither the name, trademarks, service marks or logos of Apple Inc. may
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be used to endorse or promote products derived from the Apple Software
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without specific prior written permission from Apple. Except as
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expressly stated in this notice, no other rights or licenses, express or
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implied, are granted by Apple herein, including but not limited to any
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patent rights that may be infringed by your derivative works or by other
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works in which the Apple Software may be incorporated.
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The Apple Software is provided by Apple on an "AS IS" basis. APPLE
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MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
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THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
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FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
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OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
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IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
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MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
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AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
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STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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Copyright (C) 2014 Apple Inc. All Rights Reserved.
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*/
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#import "AAPLProgressViewController.h"
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const NSUInteger kProgressViewControllerMaxProgress = 100;
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@interface AAPLProgressViewController()
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@property (nonatomic, weak) IBOutlet UIProgressView *defaultStyleProgressView;
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@property (nonatomic, weak) IBOutlet UIProgressView *barStyleProgressView;
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@property (nonatomic, weak) IBOutlet UIProgressView *tintedProgressView;
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@property (nonatomic) NSOperationQueue *operationQueue;
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@property (nonatomic) NSUInteger completedProgress;
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@end
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#pragma mark -
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@implementation AAPLProgressViewController
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- (void)viewDidLoad {
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[super viewDidLoad];
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// All progress views should initially have zero progress.
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self.completedProgress = 0;
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[self configureDefaultStyleProgressView];
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[self configureBarStyleProgressView];
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[self configureTintedProgressView];
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// As progress is received from another subsystem (i.e. NSProgress, NSURLSessionTaskDelegate, etc.), update the progressView's progress.
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[self simulateProgress];
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}
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// Overrides the "completedProgress" property's setter.
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- (void)setCompletedProgress:(NSUInteger)completedProgress {
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if (_completedProgress != completedProgress) {
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float fractionalProgress = (float)completedProgress / (float)kProgressViewControllerMaxProgress;
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[self.defaultStyleProgressView setProgress:fractionalProgress animated:YES];
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[self.barStyleProgressView setProgress:fractionalProgress animated:YES];
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[self.tintedProgressView setProgress:fractionalProgress animated:YES];
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_completedProgress = completedProgress;
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}
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}
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#pragma mark - Configuration
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- (void)configureDefaultStyleProgressView {
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self.defaultStyleProgressView.progressViewStyle = UIProgressViewStyleDefault;
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}
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- (void)configureBarStyleProgressView {
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self.barStyleProgressView.progressViewStyle = UIProgressViewStyleBar;
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}
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- (void)configureTintedProgressView {
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self.tintedProgressView.progressViewStyle = UIProgressViewStyleDefault;
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self.tintedProgressView.trackTintColor = UIColor.aapl_applicationBlueColor;
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self.tintedProgressView.progressTintColor = UIColor.aapl_applicationPurpleColor;
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}
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#pragma mark - Progress Simulation
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- (void)simulateProgress {
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// In this example we will simulate progress with a "sleep operation".
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self.operationQueue = [NSOperationQueue new];
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for (NSUInteger count = 0; count < kProgressViewControllerMaxProgress; count++) {
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[self.operationQueue addOperationWithBlock:^{
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// Delay the system for a random number of seconds.
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// This code is _not_ intended for production purposes. The "sleep" call is meant to simulate work done in another subsystem.
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sleep(arc4random_uniform(10));
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[[NSOperationQueue mainQueue] addOperationWithBlock:^{
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self.completedProgress++;
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}];
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}];
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}
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}
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@end
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