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+//
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+// MASExampleAspectFitView.m
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+// Masonry iOS Examples
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+//
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+// Created by Michael Koukoullis on 19/01/2015.
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+// Copyright (c) 2015 Jonas Budelmann. All rights reserved.
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+//
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+
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+#import "MASExampleAspectFitView.h"
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+
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+@interface MASExampleAspectFitView ()
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+@property UIView *topView;
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+@property UIView *topInnerView;
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+@property UIView *bottomView;
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+@property UIView *bottomInnerView;
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+@end
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+
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+@implementation MASExampleAspectFitView
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+
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+// Designated initializer
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+- (instancetype)init
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+{
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+ self = [super initWithFrame:CGRectZero];
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+
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+ if (self) {
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+
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+ // Create views
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+ self.topView = [[UIView alloc] initWithFrame:CGRectZero];
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+ self.topInnerView = [[UIView alloc] initWithFrame:CGRectZero];
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+ self.bottomView = [[UIView alloc] initWithFrame:CGRectZero];
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+ self.bottomInnerView = [[UIView alloc] initWithFrame:CGRectZero];
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+
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+ // Set background colors
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+ UIColor *blueColor = [UIColor colorWithRed:0.663 green:0.796 blue:0.996 alpha:1];
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+ [self.topView setBackgroundColor:blueColor];
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+
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+ UIColor *lightGreenColor = [UIColor colorWithRed:0.784 green:0.992 blue:0.851 alpha:1];
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+ [self.topInnerView setBackgroundColor:lightGreenColor];
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+
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+ UIColor *pinkColor = [UIColor colorWithRed:0.992 green:0.804 blue:0.941 alpha:1];
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+ [self.bottomView setBackgroundColor:pinkColor];
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+
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+ UIColor *darkGreenColor = [UIColor colorWithRed:0.443 green:0.780 blue:0.337 alpha:1];
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+ [self.bottomInnerView setBackgroundColor:darkGreenColor];
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+
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+ // Layout top and bottom views to each take up half of the window
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+ [self addSubview:self.topView];
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+ [self.topView mas_makeConstraints:^(MASConstraintMaker *make) {
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+ make.left.right.and.top.equalTo(self);
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+ }];
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+
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+ [self addSubview:self.bottomView];
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+ [self.bottomView mas_makeConstraints:^(MASConstraintMaker *make) {
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+ make.left.right.and.bottom.equalTo(self);
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+ make.top.equalTo(self.topView.mas_bottom);
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+ make.height.equalTo(self.topView);
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+ }];
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+
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+ // Inner views are configured for aspect fit with ratio of 3:1
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+ [self.topView addSubview:self.topInnerView];
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+ [self.topInnerView mas_makeConstraints:^(MASConstraintMaker *make) {
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+ make.width.equalTo(self.topInnerView.mas_height).multipliedBy(3);
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+
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+ make.width.and.height.lessThanOrEqualTo(self.topView);
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+ make.width.and.height.equalTo(self.topView).with.priorityLow();
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+
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+ make.center.equalTo(self.topView);
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+ }];
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+
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+ [self.bottomView addSubview:self.bottomInnerView];
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+ [self.bottomInnerView mas_makeConstraints:^(MASConstraintMaker *make) {
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+ make.height.equalTo(self.bottomInnerView.mas_width).multipliedBy(3);
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+
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+ make.width.and.height.lessThanOrEqualTo(self.bottomView);
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+ make.width.and.height.equalTo(self.bottomView).with.priorityLow();
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+
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+ make.center.equalTo(self.bottomView);
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+ }];
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+ }
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+
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+ return self;
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+}
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+
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+// Override previous designated initializer
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+- (instancetype)initWithFrame:(CGRect)frame
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+{
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+ return [self init];
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+}
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+
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+@end
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Jonas Budelmann