Mike Maxwell
84 lines
3.6 KiB
Objective-C
84 lines
3.6 KiB
Objective-C
//
|
|
// MMViewController.m
|
|
// MaterialDesignSpinner
|
|
//
|
|
// Created by Mike Maxwell on 12/28/2014.
|
|
// Copyright (c) 2014 Mike Maxwell. All rights reserved.
|
|
//
|
|
|
|
#import "MMViewController.h"
|
|
|
|
#import <MMMaterialDesignSpinner.h>
|
|
|
|
@interface MMViewController ()
|
|
@property (nonatomic, strong) MMMaterialDesignSpinner *spinnerView;
|
|
@end
|
|
|
|
@implementation MMViewController
|
|
|
|
- (void)viewDidLoad
|
|
{
|
|
[super viewDidLoad];
|
|
self.view.translatesAutoresizingMaskIntoConstraints = NO;
|
|
|
|
MMMaterialDesignSpinner *spinnerView = [[MMMaterialDesignSpinner alloc] initWithFrame:CGRectZero];
|
|
self.spinnerView = spinnerView;
|
|
self.spinnerView.bounds = CGRectMake(0, 0, 100, 100);
|
|
self.spinnerView.tintColor = [UIColor colorWithRed:215.f/255 green:49.f/255 blue:69.f/255 alpha:1];
|
|
self.spinnerView.center = CGPointMake(CGRectGetMidX(self.view.bounds), CGRectGetMidY(self.view.bounds));
|
|
self.spinnerView.translatesAutoresizingMaskIntoConstraints = NO;
|
|
[self.view addSubview:self.spinnerView];
|
|
|
|
|
|
UIButton *colorChangeButton = [UIButton buttonWithType:UIButtonTypeSystem];
|
|
[colorChangeButton setTitle:@"Change color" forState:UIControlStateNormal];
|
|
[colorChangeButton addTarget:self action:@selector(changeColorButtonTouched:) forControlEvents:UIControlEventTouchUpInside];
|
|
colorChangeButton.translatesAutoresizingMaskIntoConstraints = NO;
|
|
[self.view addSubview:colorChangeButton];
|
|
|
|
UIButton *strokeChangeButton = [UIButton buttonWithType:UIButtonTypeSystem];
|
|
[strokeChangeButton setTitle:@"Change line width" forState:UIControlStateNormal];
|
|
[strokeChangeButton addTarget:self action:@selector(changeLineWidthButtonTouched:) forControlEvents:UIControlEventTouchUpInside];
|
|
strokeChangeButton.translatesAutoresizingMaskIntoConstraints = NO;
|
|
[self.view addSubview:strokeChangeButton];
|
|
|
|
UIView *superview = self.view;
|
|
NSDictionary *views = NSDictionaryOfVariableBindings(spinnerView, colorChangeButton, superview, strokeChangeButton);
|
|
[self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:[superview]-(<=1)-[spinnerView(80)]-[colorChangeButton]-[strokeChangeButton]"
|
|
options:NSLayoutFormatAlignAllCenterX
|
|
metrics:nil
|
|
views:views]];
|
|
[self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:[superview]-(<=1)-[spinnerView(80)]"
|
|
options:NSLayoutFormatAlignAllCenterY
|
|
metrics:nil
|
|
views:views]];
|
|
}
|
|
|
|
- (void)viewDidAppear:(BOOL)animated {
|
|
[super viewDidAppear:animated];
|
|
|
|
[self.spinnerView startAnimating];
|
|
}
|
|
|
|
#pragma mark Actions
|
|
|
|
- (void)changeColorButtonTouched:(id)sender {
|
|
self.spinnerView.tintColor = [MMViewController randomColor];
|
|
}
|
|
|
|
- (void)changeLineWidthButtonTouched:(id)sender {
|
|
self.spinnerView.lineWidth = (rand() % 10) / 2.f;
|
|
if (self.spinnerView.lineWidth == 0) self.spinnerView.lineWidth = 0.1f;
|
|
}
|
|
|
|
#pragma mark Helper methods
|
|
|
|
+ (UIColor *)randomColor {
|
|
CGFloat hue = ( arc4random() % 256 / 256.0 ); // 0.0 to 1.0
|
|
CGFloat saturation = ( arc4random() % 128 / 256.0 ) + 0.5; // 0.5 to 1.0, away from white
|
|
CGFloat brightness = ( arc4random() % 128 / 256.0 ) + 0.5; // 0.5 to 1.0, away from black
|
|
return [UIColor colorWithHue:hue saturation:saturation brightness:brightness alpha:1];
|
|
}
|
|
|
|
@end
|