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我有一个项目，我创建了一个自定义的UIPopoverController类，并在我的项目的几个部分使用，但现在从iOS 9 UIPopoverController已弃用。我想知道是否有任何简单的方法可以修改我现有的popover类，以便我使用它的其他部分保持不变或变化不大。以下是我创建的自定义类。修复UIPopoverController弃用问题iOS 9的自定义类问题
**myCustomPopover.h file**
#import <UIKit/UIKit.h>
#import <QuartzCore/QuartzCore.h>
@interface myCustomPopover : UIPopoverController
@property (readonly) UIColor *tintColor;
- (id)initWithContentViewController:(UIViewController *)viewController andTintColor: (UIColor *)tintColor;
@end
**mycustomPopover.m file**
#import "myCustomPopover.h"
#pragma mark - Internal Constants
CGFloat const contentInset = 5.0;
CGFloat const capInset = 25.0;
CGFloat const arrowHeight = 25.0;
CGFloat const arrowBase = 25.0;
@interface myCustomPopoverControllerBackgroundView : UIPopoverBackgroundView
{
UIImageView *borderImageView;
UIImageView *arrowImageView;
}
+ (UIColor *)currentTintColor;
+ (void)setCurrentTintColor: (UIColor *)tintColor;
@end
@implementation myCustomPopoverControllerBackgroundView
#pragma mark - Internal Class Variables
static UIColor *currentTintColor;
#pragma mark - Initializers
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame: frame];
if (!self)
return nil;
UIGraphicsBeginImageContext(CGSizeMake(60, 60));
UIBezierPath *borderPath = [UIBezierPath bezierPathWithRoundedRect: CGRectMake(0, 0, 60, 60)
cornerRadius: 8];
[currentTintColor setFill];
[borderPath fill];
UIImage *borderImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
UIEdgeInsets capInsets = UIEdgeInsetsMake(capInset, capInset, capInset, capInset);
borderImageView = [[UIImageView alloc] initWithImage: [borderImage resizableImageWithCapInsets: capInsets]];
UIGraphicsBeginImageContext(CGSizeMake(25, 25));
UIBezierPath *arrowPath = [UIBezierPath bezierPath];
[arrowPath moveToPoint: CGPointMake(12.5, 0)];
[arrowPath addLineToPoint: CGPointMake(25, 25)];
[arrowPath addLineToPoint: CGPointMake(0, 25)];
[arrowPath addLineToPoint: CGPointMake(12.5, 0)];
UIGraphicsBeginImageContext(CGSizeMake(24, 15));
self.opaque = NO;
[currentTintColor setFill];
[arrowPath fill];
UIImage *arrowImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
arrowImageView = [[UIImageView alloc] initWithImage: arrowImage];
arrowImageView.layer.shadowColor = [UIColor blackColor].CGColor;
arrowImageView.layer.shadowOpacity = .4;
arrowImageView.layer.shadowRadius = 2;
arrowImageView.layer.shadowOffset = CGSizeMake(0, 1);
arrowImageView.layer.masksToBounds = YES;
[self addSubview: borderImageView];
[self addSubview: arrowImageView];
return self;
}
#pragma mark - Class Accessors and Mutators
+ (UIColor *)currentTintColor
{
return currentTintColor;
}
+ (void)setCurrentTintColor:(UIColor *)tintColor
{
currentTintColor = tintColor;
}
#pragma mark - Class Handlers
+ (UIEdgeInsets)contentViewInsets
{
return UIEdgeInsetsMake(contentInset, contentInset, contentInset, contentInset);
}
+ (CGFloat)arrowHeight
{
return arrowHeight;
}
+ (CGFloat)arrowBase
{
return arrowBase;
}
-(void) setArrowOffset:(CGFloat)_arrowOffset
{
arrowOffset = _arrowOffset;
[self setNeedsLayout];
}
-(void) setArrowDirection:(UIPopoverArrowDirection)_arrowDirection
{
arrowDirection = _arrowDirection;
[self setNeedsLayout];
}
#pragma mark - View Handlers
@synthesize arrowOffset;
@synthesize arrowDirection;
-(void)layoutSubviews
{
[super layoutSubviews];
CGFloat popoverImageOriginX = 0;
CGFloat popoverImageOriginY = 0;
CGFloat popoverImageWidth = self.bounds.size.width;
CGFloat popoverImageHeight = self.bounds.size.height;
CGFloat arrowImageOriginX = 0;
CGFloat arrowImageOriginY = 0;
CGFloat arrowImageWidth = arrowBase;
CGFloat arrowImageHeight = arrowHeight ;
CGAffineTransform rotation = CGAffineTransformIdentity;
CGFloat factor=0.0;
// Radius value you used to make rounded corners in your popover background image
CGFloat cornerRadius = 8;
switch (self.arrowDirection) {
case UIPopoverArrowDirectionUp:
popoverImageOriginY = arrowHeight - factor;
popoverImageHeight = self.bounds.size.height - arrowHeight;
// Calculating arrow x position using arrow offset, arrow width and popover width
arrowImageOriginX = roundf((self.bounds.size.width - arrowBase)/2 + self.arrowOffset);
// If arrow image exceeds rounded corner arrow image x postion is adjusted
if (arrowImageOriginX + arrowBase > self.bounds.size.width - cornerRadius)
{
arrowImageOriginX -= cornerRadius;
}
if (arrowImageOriginX < cornerRadius)
{
arrowImageOriginX += cornerRadius;
}
break;
case UIPopoverArrowDirectionDown:
popoverImageHeight = self.bounds.size.height - arrowHeight + factor;
arrowImageOriginX = roundf((self.bounds.size.width - arrowBase)/2 + self.arrowOffset);
if (arrowImageOriginX + arrowBase > self.bounds.size.width - cornerRadius)
{
arrowImageOriginX -= cornerRadius;
}
if (arrowImageOriginX < cornerRadius)
{
arrowImageOriginX += cornerRadius;
}
arrowImageOriginY = popoverImageHeight - factor;
rotation = CGAffineTransformMakeRotation(M_PI);
break;
case UIPopoverArrowDirectionLeft:
popoverImageOriginX = arrowHeight - factor;
popoverImageWidth = self.bounds.size.width - arrowHeight;
arrowImageOriginY = roundf((self.bounds.size.height - arrowBase)/2 + self.arrowOffset);
if (arrowImageOriginY + arrowBase > self.bounds.size.height - cornerRadius)
{
arrowImageOriginY -= cornerRadius;
}
if (arrowImageOriginY < cornerRadius)
{
arrowImageOriginY += cornerRadius;
}
arrowImageWidth = arrowHeight;
arrowImageHeight = arrowBase;
rotation = CGAffineTransformMakeRotation(-M_PI_2);
break;
case UIPopoverArrowDirectionRight:
popoverImageWidth = self.bounds.size.width - arrowHeight + factor;
arrowImageOriginX = popoverImageWidth - factor;
arrowImageOriginY = roundf((self.bounds.size.height - arrowBase)/2 + self.arrowOffset);
if (arrowImageOriginY + arrowBase > self.bounds.size.height - cornerRadius)
{
arrowImageOriginY -= cornerRadius;
}
if (arrowImageOriginY < cornerRadius)
{
arrowImageOriginY += cornerRadius;
}
arrowImageWidth = arrowHeight;
arrowImageHeight = arrowBase;
rotation = CGAffineTransformMakeRotation(M_PI_2);
break;
default:
// For popovers without arrows
popoverImageHeight = self.bounds.size.height - arrowHeight + factor;
break;
}
borderImageView.frame = CGRectMake(popoverImageOriginX, popoverImageOriginY, popoverImageWidth, popoverImageHeight);
arrowImageView.frame = CGRectMake(arrowImageOriginX, arrowImageOriginY, arrowImageWidth, arrowImageHeight);
[arrowImageView setTransform: rotation];
}
@end
@implementation myCustomPopoverController
#pragma mark - Properties
@synthesize tintColor;
#pragma mark - Initializers
- (id)initWithContentViewController:(UIViewController *)viewController
{
self = [self initWithContentViewController: viewController
andTintColor: [UIColor blackColor]];
return self;
}
- (id)initWithContentViewController:(UIViewController *)viewController andTintColor:(UIColor *)aTintColor
{
self = [super initWithContentViewController: viewController];
if (!self)
return nil;
[super setPopoverBackgroundViewClass: [myCustomPopoverControllerBackgroundView class]];
currentTintColor = aTintColor;
tintColor = aTintColor;
return self;
}
#pragma mark - Overriders
- (void)setPopoverBackgroundViewClass:(Class)popoverBackgroundViewClass {}
@end
我试图子类改为UIPopoverPresentationController但没有像接口initWithContentViewController一些错误。这是正确的方法吗？