自己总结的类目Category
-------------------------给UILabel设置字体，font----------------------------------
#import <UIKit/UIKit.h>
#pragma mark ======自带的根据url获取image的方法=======
@interface UIImageView (DispatchLoad)
- (void) setImageFromUrl:(NSString*)urlString;
- (void) setImageFromUrl:(NSString*)urlString
completion:(void (^)(void))completion;
@end
@implementation UIImageView (DispatchLoad)
- (void) setImageFromUrl:(NSString*)urlString {
[selfsetImageFromUrl:urlString completion:NULL];
}
- (void) setImageFromUrl:(NSString*)urlString
completion:(void (^)(void))completion {
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
NSURL *url = [NSURL URLWithString:urlString];
NSData *responseData = [NSData dataWithContentsOfURL:url];
UIImage *image = [UIImage imageWithData:responseData];
if (image) {
dispatch_async(dispatch_get_main_queue(), ^{
self.image = image;
});
dispatch_async(dispatch_get_main_queue(), completion);
}
});
}
@end
@interface UILabel (WebFont)
- (void)setFontWithName:(NSString *)fontName defaultName:(NSString *)defaultName size:(float)size;
@end
#import "UILabel+WebFont.h"
#import <CoreText/CoreText.h>
static const double kAnimateDuration = .8;
@implementation UILabel (WebFont)
- (void)setFontWithName:(NSString *)fontName defaultName:(NSString *)defaultName size:(float)size
{
if ([self isFontDownloaded:fontName]) {
[self setFont:[UIFont fontWithName:fontName size:size]];
return;
} else {
//download
[self asynchronouslySetFontName:fontName defaultName:(NSString *)defaultName size:size];
}
}
- (BOOL)isFontDownloaded:(NSString *)fontName
{
UIFont* aFont = [UIFont fontWithName:fontName size:12.];
// If the font is already downloaded
if (aFont && ([aFont.fontName compare:fontName] == NSOrderedSame || [aFont.familyName compare:fontName] == NSOrderedSame)) {
// Go ahead and display the sample text.
SJBLog(@"Font: 已经下载好，直接设置了字体");
return YES;
}
returnNO;
}
- (void)asynchronouslySetFontName:(NSString *)fontName defaultName:(NSString *)defaultName size:(float)size
{
UIFont* aFont = [UIFont fontWithName:fontName size:12.];
// If the font is already downloaded
if (aFont && ([aFont.fontName compare:fontName] == NSOrderedSame || [aFont.familyName compare:fontName] == NSOrderedSame)) {
// Go ahead and display the sample text.
[self setFont:[UIFont fontWithName:fontName size:size]];
SJBLog(@"Font: 已经下载好，直接设置了字体");
return;
}
CGRect fontFrame = self.frame;
//因为Begin Downloading回调太慢，所以在此判断，如果字体没有下载完成，那么就显示默认字体
if (![[NSUserDefaultsstandardUserDefaults] objectForKey:[NSStringstringWithFormat:@"kFont_%@",fontName]]) {
[self setFont:[UIFont fontWithName:defaultName size:size]];
}else {
self.alpha = 0.0;
self.hidden = YES;
}
// Create a dictionary with the font's PostScript name.
NSMutableDictionary *attrs = [NSMutableDictionarydictionaryWithObjectsAndKeys:fontName, kCTFontNameAttribute, nil];
// Create a new font descriptor reference from the attributes dictionary.
CTFontDescriptorRef desc = CTFontDescriptorCreateWithAttributes((__bridgeCFDictionaryRef)attrs);
NSMutableArray *descs = [NSMutableArrayarrayWithCapacity:0];
[descs addObject:(__bridge id)desc];
CFRelease(desc);
__block BOOL errorDuringDownload = NO;
// Start processing the font descriptor..
// This function returns immediately, but can potentially take long time to process.
// The progress is notified via the callback block of CTFontDescriptorProgressHandler type.
// See CTFontDescriptor.h for the list of progress states and keys for progressParameter dictionary.
CTFontDescriptorMatchFontDescriptorsWithProgressHandler( (__bridgeCFArrayRef)descs, NULL, ^(CTFontDescriptorMatchingState state, CFDictionaryRef progressParameter) {
if (state == kCTFontDescriptorMatchingDidBegin) {
dispatch_async( dispatch_get_main_queue(), ^ {
SJBLog(@"Font: Begin Matching");
});
} elseif (state == kCTFontDescriptorMatchingDidFinish) {
dispatch_async( dispatch_get_main_queue(), ^ {
SJBLog(@"Font: Matching Did Finish");
[self setFont:[UIFont fontWithName:fontName size:size]];
// Log the font URL in the console
CTFontRef fontRef = CTFontCreateWithName((__bridge CFStringRef)fontName, 0., NULL);
CFStringRef fontURL = CTFontCopyAttribute(fontRef, kCTFontURLAttribute);
SJBLog(@"%@", (__bridge NSURL*)(fontURL));
CFRelease(fontURL);
CFRelease(fontRef);
if (!errorDuringDownload) {
SJBLog(@"Font: %@ downloaded", fontName);
}
self.hidden = NO;
self.frame = fontFrame;
[UIViewanimateWithDuration:kAnimateDurationanimations:^{
self.alpha = 1.0;
}completion:^(BOOL finished){
}];
});
} elseif (state == kCTFontDescriptorMatchingWillBeginDownloading) {
dispatch_async( dispatch_get_main_queue(), ^ {
SJBLog(@"Font: Begin Downloading");
});
} elseif (state == kCTFontDescriptorMatchingDidFinishDownloading) {
dispatch_async( dispatch_get_main_queue(), ^ {
SJBLog(@"Font: Finish downloading");
//下载成功时，存储该字体标示
NSUserDefaults *userDefault = [NSUserDefaults standardUserDefaults];
[userDefault setObject:@"1" forKey:[NSString stringWithFormat:@"kFont_%@",fontName]];
[userDefault synchronize];
});
} elseif (state == kCTFontDescriptorMatchingDownloading) {
dispatch_async( dispatch_get_main_queue(), ^ {
// Use the progress bar to indicate the progress of the downloading
});
} elseif (state == kCTFontDescriptorMatchingDidFailWithError) {
// An error has occurred.
// Get the error message
errorDuringDownload = YES;
dispatch_async( dispatch_get_main_queue(), ^ {
});
}
return (bool)YES;
});
}
@end
-------------------------TextView的子类，给他加placeholder---------------------------------
#import <UIKit/UIKit.h>
@interface SJBTextView : UITextView{
BOOL _shouldDrawPlaceholder;
}
@property (nonatomic) NSString *placeholder;
@property (nonatomic) UIColor *placeholderColor;
- (void)_initialize;
- (void)_updateShouldDrawPlaceholder;
- (void)_textChanged:(NSNotification *)notification;
@end
#import "SJBTextView.h"
@implementation SJBTextView
- (id)initWithFrame:(CGRect)frame {
if ((self = [super initWithFrame:frame])) {
[self _initialize];
}
returnself;
}
- (void)setText:(NSString *)string {
[super setText:string];
[self_updateShouldDrawPlaceholder];
}
- (void)setPlaceholder:(NSString *)string {
if ([string isEqual:_placeholder]) {
return;
}
_placeholder = string;
[self_updateShouldDrawPlaceholder];
}
#pragma mark - NSObject
- (void)dealloc {
[[NSNotificationCenterdefaultCenter] removeObserver:selfname:UITextViewTextDidChangeNotificationobject:self];
}
#pragma mark - UIView
- (id)initWithCoder:(NSCoder *)aDecoder {
if ((self = [super initWithCoder:aDecoder])) {
[self _initialize];
}
returnself;
}
- (void)drawRect:(CGRect)rect {
[super drawRect:rect];
if (_shouldDrawPlaceholder) {
[_placeholderColorset];
[_placeholderdrawInRect:CGRectMake(8.0f, 5.0f, self.frame.size.width - 16.0f, self.frame.size.height - 16.0f) withAttributes:@{NSForegroundColorAttributeName: self.placeholderColor}];
}
}
#pragma mark - Private
- (void)_initialize {
[[NSNotificationCenterdefaultCenter] addObserver:selfselector:@selector(_textChanged:) name:UITextViewTextDidChangeNotificationobject:self];
self.placeholderColor = [UIColorcolorWithWhite:0.702falpha:1.0f];
_shouldDrawPlaceholder = NO;
}
- (void)_updateShouldDrawPlaceholder {
BOOL prev = _shouldDrawPlaceholder;
_shouldDrawPlaceholder = self.placeholder && self.placeholderColor && self.text.length == 0;
if (prev != _shouldDrawPlaceholder) {
[selfsetNeedsDisplay];
}
}
- (void)_textChanged:(NSNotification *)notificaiton {
[self_updateShouldDrawPlaceholder];
}
/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect
{
// Drawing code
}
*/
@end
-------------------------检查新版本----------------------------------
#import <Foundation/Foundation.h>
#import "AFNetworking.h"
@protocol CheckUpdateDelegate <NSObject>
@optional
- (void)currentVersionHasNewest;
@end
@interface SJBCheckUpdate : NSObject<UIAlertViewDelegate>
{
NSString *_updateURL;
}
@property (assign, nonatomic) id <CheckUpdateDelegate> delegate;
+ (SJBCheckUpdate *)shareInstance;
- (void)checkUpdate;
@end
#import "SJBCheckUpdate.h"
#import "JSON.h"
@implementation SJBCheckUpdate
+ (SJBCheckUpdate *)shareInstance
{
static SJBCheckUpdate *update = nil;
if (!update)
{
update = [[SJBCheckUpdate alloc] init];
}
return update;
}
- (void)checkUpdate
{
NSDictionary *infoDict = [[NSBundle mainBundle]infoDictionary];
NSString *currentVersion = infoDict[@"CFBundleShortVersionString"];
NSString *urlStr = [NSString stringWithFormat:@"%@%@",kUpdateAPPURL, kAPPID];
NSURL *url = [NSURL URLWithString:urlStr];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperationalloc]initWithRequest:request];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
NSDictionary *jsonData = [operation.responseString JSONValue];
NSArray *infoArray = jsonData[@"results"];
if (infoArray.count >= 1)
{
NSDictionary *releaseInfo = infoArray[0];
NSString *latestVersion = releaseInfo[@"version"];
NSString *releaseNotes = releaseInfo[@"releaseNotes"];
NSString *title = [NSString stringWithFormat:@"%@ %@版本", kAPPName, latestVersion];
_updateURL = releaseInfo[@"trackViewUrl"];
if ([latestVersion compare:currentVersion] == NSOrderedDescending)
{
[[NSNotificationCenterdefaultCenter]postNotificationName:@"hasNewVersion"object:nil];
UIAlertView *alertView = [[UIAlertViewalloc] initWithTitle:title message:releaseNotes delegate:selfcancelButtonTitle:@"忽略"otherButtonTitles:@"去App Store下载", nil];
[alertView show];
}
else
{
[[NSNotificationCenterdefaultCenter]postNotificationName:@"notNewVersion"object:nil];
if ([self.delegate respondsToSelector:@selector(currentVersionHasNewest)])
{
[self.delegate currentVersionHasNewest];
}
}
}
else
{
[[NSNotificationCenterdefaultCenter]postNotificationName:@"notNewVersion"object:nil];
if ([self.delegate respondsToSelector:@selector(currentVersionHasNewest)])
{
[self.delegatecurrentVersionHasNewest];
}
}
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
SJBLog(@"error====%@",error);
[[NSNotificationCenterdefaultCenter]postNotificationName:@"notNewVersion"object:nil];
}];
[operation start];
}
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
if (buttonIndex == 1)
{
[[UIApplicationsharedApplication] openURL:[NSURLURLWithString:_updateURL]];
}
}
@end
-------------------------NSString的类目，添加判断是否全是数字，是否全是字母，或者以数组开头。---------------------------------
#import <Foundation/Foundation.h>
@interface NSString (Validation)
- (BOOL)isAllDigits;
- (BOOL)isAllAlphaNumericCharacter;
- (BOOL)isStartWithDigit;
@end
#import "NSString+Validation.h"
@implementation NSString (Validation)
- (BOOL)isAllDigits
{
NSCharacterSet *nonNumbers = [[NSCharacterSetdecimalDigitCharacterSet] invertedSet];
NSRange range = [self rangeOfCharacterFromSet:nonNumbers];
return range.location == NSNotFound;
}
- (BOOL)isAllAlphaNumericCharacter
{
NSCharacterSet *nonNumbers = [[NSCharacterSetalphanumericCharacterSet] invertedSet];
NSRange range = [self rangeOfCharacterFromSet:nonNumbers];
return range.location == NSNotFound;
}
- (BOOL)isStartWithDigit
{
NSCharacterSet *numbers = [NSCharacterSetdecimalDigitCharacterSet];
NSRange range = [self rangeOfCharacterFromSet:numbers];
return range.location == 0;
}
@end
-------------------------UIViewController的类目，有两个常用的方法，pop，dismiss和一个delegate的获取方法---------------------------------
#import <UIKit/UIKit.h>
#import "SJBAppDelegate.h"
@interface UIViewController (Action)
- (SJBAppDelegate *)appDelegate;
- (void)popViewController;
- (void)closeMe;
@end
#import "UIViewController+Action.h"
@implementation UIViewController (Action)
- (SJBAppDelegate *)appDelegate
{
SJBAppDelegate *appDelegate = (SJBAppDelegate *)[UIApplication sharedApplication].delegate;
return appDelegate;
}
- (void)popViewController
{
[self.navigationControllerpopViewControllerAnimated:YES];
}
- (void)closeMe
{
[selfdismissViewControllerAnimated:YEScompletion:nil];
}
@end
-------------------------Font下载字体的方法---------------------------------------
#import <UIKit/UIKit.h>
@interface SJBFont : UIFont
+ (UIFont *)preferedFont:(NSString *)preferedFontName basicFont:(NSString *)basicFontName size:(CGFloat)fontSize;
+ (void)downloadFont:(NSString *)fontName;
@end
#import "SJBFont.h"
#import <CoreText/CoreText.h>
@implementation SJBFont
+ (UIFont *)preferedFont:(NSString *)preferedFontName basicFont:(NSString *)basicFontName size:(CGFloat)fontSize
{
UIFont *theFont = [UIFont fontWithName:preferedFontName size:fontSize];
if (theFont && ([theFont.fontName compare:preferedFontName] == NSOrderedSame || [theFont.familyName compare:preferedFontName] == NSOrderedSame)) {
//
} else {
theFont = [UIFont fontWithName:basicFontName size:fontSize];
}
return theFont;
}
+ (void)downloadFont:(NSString *)fontName
{
UIFont *theFont = [UIFont fontWithName:fontName size:10.0f];
if (!theFont || !([theFont.fontName compare:fontName] == NSOrderedSame || [theFont.familyName compare:fontName] == NSOrderedSame)) {
NSMutableDictionary *attrs = [NSMutableDictionarydictionaryWithObjectsAndKeys:fontName, kCTFontNameAttribute, nil];
CTFontDescriptorRef desc = CTFontDescriptorCreateWithAttributes((__bridgeCFDictionaryRef)attrs);
NSMutableArray *descs = [NSMutableArrayarrayWithCapacity:0];
[descs addObject:(__bridge id)desc];
CFRelease(desc);
__block BOOL errorDuringDownload = NO;
CTFontDescriptorMatchFontDescriptorsWithProgressHandler( (__bridgeCFArrayRef)descs, NULL, ^(CTFontDescriptorMatchingState state, CFDictionaryRef progressParameter) {
if (state == kCTFontDescriptorMatchingDidBegin) {
dispatch_async( dispatch_get_main_queue(), ^ {
//
});
} elseif (state == kCTFontDescriptorMatchingDidFinish) {
dispatch_async( dispatch_get_main_queue(), ^ {
// Log the font URL in the console
SJBLog(@"Font download finished");
});
} elseif (state == kCTFontDescriptorMatchingWillBeginDownloading) {
dispatch_async( dispatch_get_main_queue(), ^ {
SJBLog(@"Font Begin Downloading");
});
} elseif (state == kCTFontDescriptorMatchingDidFinishDownloading) {
dispatch_async( dispatch_get_main_queue(), ^ {
SJBLog(@"Font Finish downloading");
});
} elseif (state == kCTFontDescriptorMatchingDownloading) {
dispatch_async( dispatch_get_main_queue(), ^ {
//
});
} elseif (state == kCTFontDescriptorMatchingDidFailWithError) {
// NSError *error = ((__bridge NSDictionary *)progressParameter)[(id)kCTFontDescriptorMatchingError];
errorDuringDownload = YES;
// dispatch_async( dispatch_get_main_queue(), ^ {
// SJBLog(@"Download error: %@", [error description]);
// });
}
return (bool)YES;
});
}
}
@end
----------------------------UILabel的子类，加了一个UIEdgeInsets属性-------------------------------
#import <UIKit/UIKit.h>
@interface SJBLabel : UILabel
@property (nonatomic, assign) UIEdgeInsets insets;
@end
#import "SJBLabel.h"
@implementation SJBLabel
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
self.insets = UIEdgeInsetsMake(0.0f, 0.0f, 0.0f, 0.0f);
}
returnself;
}
- (void)drawTextInRect:(CGRect)rect
{
UIEdgeInsets insets = _insets;
[superdrawTextInRect:UIEdgeInsetsInsetRect(rect, insets)];
}
@end
----------------------------UIView的类目，Category,删除所有子视图的方法-------------------------------
#import <UIKit/UIKit.h>
@interface UIView (Category)
- (void)removeAllSubViews;
@end
#import "UIView+Category.h"
@implementation UIView (Category)
- (void)removeAllSubViews
{
for (UIView *view in self.subviews) {
[view removeFromSuperview];
}
}
@end
----------------------------NSString 的类目，parseJson的方法。ios7后的库方法，不用第三方的json框架------------------------------
#import <Foundation/Foundation.h>
@interface NSString (JSON)
- (id)parseJson;
@end
#import "NSString+JSON.h"
@implementation NSString (JSON)
- (id)parseJson
{
NSError *error = nil;
id returnValue = [NSJSONSerializationJSONObjectWithData:[selfdataUsingEncoding:NSUTF8StringEncoding] options:0error:&error];
if(error) SJBLog(@"JSON Parsing Error: %@", error);
return returnValue;
}
@end
--------------------------------UIColor+HexString.h十六进制转化uicolor，借助于mac的Sip工具-------------------
#import <UIKit/UIKit.h>
@interface UIColor (HexString)
+ (UIColor *)colorWithHexString:(NSString *)hexString alpha:(CGFloat)alpha;
@end
#import "UIColor+HexString.h"
@implementation UIColor (HexString)
+ (UIColor *)colorWithHexString:(NSString *)hexString alpha:(CGFloat)alpha
{
unsignedint c;
if ([hexString characterAtIndex:0] == '#') {
[[NSScannerscannerWithString:[hexString substringFromIndex:1]] scanHexInt:&c];
} else {
[[NSScanner scannerWithString:hexString] scanHexInt:&c];
}
return [UIColor colorWithRed:((c & 0xff0000) >> 16)/255.0f green:((c & 0xff00) >> 8)/255.0f blue:(c & 0xff)/255.0f alpha:alpha];
}
@end
--------------------------------UIImage的类目颜色转化为图片---------------------------------
#import <UIKit/UIKit.h>
@interface UIImage (PureColorBlock)
+ (UIImage *)imageWithColor:(UIColor *)color frame:(CGRect)frame;
@end
#import "UIImage+PureColorBlock.h"
@implementation UIImage (PureColorBlock)
+ (UIImage *)imageWithColor:(UIColor *)color frame:(CGRect)frame {
CGRect rect = frame;
UIGraphicsBeginImageContext(rect.size);
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [color CGColor]);
CGContextFillRect(context, rect);
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return image;
}
@end
------------UIView的类目Category 可以知道控件的上下左右的边界的值，不用再myLabel.frame.orgin.x+myLabel.frame.size.width那么麻烦了直接用myLabel.right 就行了。其他四个也一样。------------------------------------------
#import <UIKit/UIKit.h>
@interface UIView (Utils)
/**
* Shortcut for frame.origin.x.
*
* Sets frame.origin.x = left
*/
@property (nonatomic) CGFloat left;
/**
* Shortcut for frame.origin.y
*
* Sets frame.origin.y = top
*/
@property (nonatomic) CGFloat top;
/**
* Shortcut for frame.origin.x + frame.size.width
*
* Sets frame.origin.x = right - frame.size.width
*/
@property (nonatomic) CGFloat right;
/**
* Shortcut for frame.origin.y + frame.size.height
*
* Sets frame.origin.y = bottom - frame.size.height
*/
@property (nonatomic) CGFloat bottom;
/**
* Shortcut for frame.size.width
*
* Sets frame.size.width = width
*/
@property (nonatomic) CGFloat width;
/**
* Shortcut for frame.size.height
*
* Sets frame.size.height = height
*/
@property (nonatomic) CGFloat height;
/**
* Shortcut for center.x
*
* Sets center.x = centerX
*/
@property (nonatomic) CGFloat centerX;
/**
* Shortcut for center.y
*
* Sets center.y = centerY
*/
@property (nonatomic) CGFloat centerY;
/**
* Return the x coordinate on the screen.
*/
@property (nonatomic, readonly) CGFloat screenX;
/**
* Return the y coordinate on the screen.
*/
@property (nonatomic, readonly) CGFloat screenY;
/**
* Return the x coordinate on the screen, taking into account scroll views.
*/
@property (nonatomic, readonly) CGFloat screenViewX;
/**
* Return the y coordinate on the screen, taking into account scroll views.
*/
@property (nonatomic, readonly) CGFloat screenViewY;
/**
* Return the view frame on the screen, taking into account scroll views.
*/
@property (nonatomic, readonly) CGRect screenFrame;
/**
* Shortcut for frame.origin
*/
@property (nonatomic) CGPoint origin;
/**
* Shortcut for frame.size
*/
@property (nonatomic) CGSize size;
/**
* Return the width in portrait or the height in landscape.
*/
@property (nonatomic, readonly) CGFloat orientationWidth;
/**
* Return the height in portrait or the width in landscape.
*/
@property (nonatomic, readonly) CGFloat orientationHeight;
/**
* Finds the first descendant view (including this view) that is a member of a particular class.
*/
- (UIView*)descendantOrSelfWithClass:(Class)cls;
/**
* Finds the first ancestor view (including this view) that is a member of a particular class.
*/
- (UIView*)ancestorOrSelfWithClass:(Class)cls;
/**
* Removes all subviews.
*/
- (void)removeAllSubviews;
/**
Attaches the given block for a single tap action to the receiver.
@param block The block to execute.
*/
- (void)setTapActionWithBlock:(void (^)(void))block;
/**
Attaches the given block for a long press action to the receiver.
@param block The block to execute.
*/
- (void)setLongPressActionWithBlock:(void (^)(void))block;
@end
#import "UIView+Utils.h"
#import <objc/runtime.h>
static char kDTActionHandlerTapBlockKey;
static char kDTActionHandlerTapGestureKey;
static char kDTActionHandlerLongPressBlockKey;
static char kDTActionHandlerLongPressGestureKey;
@implementation UIView (Utils)
- (CGFloat)left {
returnself.frame.origin.x;
}
- (void)setLeft:(CGFloat)x {
CGRect frame = self.frame;
frame.origin.x = x;
self.frame = frame;
}
- (CGFloat)top {
returnself.frame.origin.y;
}
- (void)setTop:(CGFloat)y {
CGRect frame = self.frame;
frame.origin.y = y;
self.frame = frame;
}
- (CGFloat)right {
returnself.frame.origin.x + self.frame.size.width;
}
- (void)setRight:(CGFloat)right {
CGRect frame = self.frame;
frame.origin.x = right - frame.size.width;
self.frame = frame;
}
- (CGFloat)bottom {
returnself.frame.origin.y + self.frame.size.height;
}
- (void)setBottom:(CGFloat)bottom {
CGRect frame = self.frame;
frame.origin.y = bottom - frame.size.height;
self.frame = frame;
}
- (CGFloat)centerX {
returnself.center.x;
}
- (void)setCenterX:(CGFloat)centerX {
self.center = CGPointMake(centerX, self.center.y);
}
- (CGFloat)centerY {
returnself.center.y;
}
- (void)setCenterY:(CGFloat)centerY {
self.center = CGPointMake(self.center.x, centerY);
}
- (CGFloat)width {
returnself.frame.size.width;
}
- (void)setWidth:(CGFloat)width {
CGRect frame = self.frame;
frame.size.width = width;
self.frame = frame;
}
- (CGFloat)height {
returnself.frame.size.height;
}
- (void)setHeight:(CGFloat)height {
CGRect frame = self.frame;
frame.size.height = height;
self.frame = frame;
}
- (CGFloat)screenX {
CGFloat x = 0.0f;
for (UIView* view = self; view; view = view.superview) {
x += view.left;
}
return x;
}
- (CGFloat)screenY {
CGFloat y = 0.0f;
for (UIView* view = self; view; view = view.superview) {
y += view.top;
}
return y;
}
- (CGFloat)screenViewX {
CGFloat x = 0.0f;
for (UIView* view = self; view; view = view.superview) {
x += view.left;
if ([view isKindOfClass:[UIScrollView class]]) {
UIScrollView* scrollView = (UIScrollView*)view;
x -= scrollView.contentOffset.x;
}
}
return x;
}
- (CGFloat)screenViewY {
CGFloat y = 0;
for (UIView* view = self; view; view = view.superview) {
y += view.top;
if ([view isKindOfClass:[UIScrollView class]]) {
UIScrollView* scrollView = (UIScrollView*)view;
y -= scrollView.contentOffset.y;
}
}
return y;
}
- (CGRect)screenFrame {
returnCGRectMake(self.screenViewX, self.screenViewY, self.width, self.height);
}
- (CGPoint)origin {
returnself.frame.origin;
}
- (void)setOrigin:(CGPoint)origin {
CGRect frame = self.frame;
frame.origin = origin;
self.frame = frame;
}
- (CGSize)size {
returnself.frame.size;
}
- (void)setSize:(CGSize)size {
CGRect frame = self.frame;
frame.size = size;
self.frame = frame;
}
- (CGFloat)orientationWidth {
returnUIInterfaceOrientationIsLandscape([UIApplicationsharedApplication].statusBarOrientation)
? self.height : self.width;
}
- (CGFloat)orientationHeight {
returnUIInterfaceOrientationIsLandscape([UIApplicationsharedApplication].statusBarOrientation)
? self.width : self.height;
}
- (UIView*)descendantOrSelfWithClass:(Class)cls {
if ([self isKindOfClass:cls])
return self;
for (UIView* child in self.subviews) {
UIView* it = [child descendantOrSelfWithClass:cls];
if (it)
return it;
}
returnnil;
}
- (UIView*)ancestorOrSelfWithClass:(Class)cls {
if ([self isKindOfClass:cls]) {
return self;
} else if (self.superview) {
return [self.superviewancestorOrSelfWithClass:cls];
} else {
return nil;
}
}
- (void)removeAllSubviews {
while (self.subviews.count) {
UIView* child = self.subviews.lastObject;
[child removeFromSuperview];
}
}
- (CGPoint)offsetFromView:(UIView*)otherView {
CGFloat x = 0.0f, y = 0.0f;
for (UIView* view = self; view && view != otherView; view = view.superview) {
x += view.left;
y += view.top;
}
return CGPointMake(x, y);
}
- (void)setTapActionWithBlock:(void (^)(void))block
{
UITapGestureRecognizer *gesture = objc_getAssociatedObject(self, &kDTActionHandlerTapGestureKey);
if (!gesture)
{
gesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(__handleActionForTapGesture:)];
[selfaddGestureRecognizer:gesture];
objc_setAssociatedObject(self, &kDTActionHandlerTapGestureKey, gesture, OBJC_ASSOCIATION_RETAIN);
}
objc_setAssociatedObject(self, &kDTActionHandlerTapBlockKey, block, OBJC_ASSOCIATION_COPY);
}
- (void)__handleActionForTapGesture:(UITapGestureRecognizer *)gesture
{
if (gesture.state == UIGestureRecognizerStateRecognized)
{
void(^action)(void) = objc_getAssociatedObject(self, &kDTActionHandlerTapBlockKey);
if (action)
{
action();
}
}
}
- (void)setLongPressActionWithBlock:(void (^)(void))block
{
UILongPressGestureRecognizer *gesture = objc_getAssociatedObject(self, &kDTActionHandlerLongPressGestureKey);
if (!gesture)
{
gesture = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(__handleActionForLongPressGesture:)];
[selfaddGestureRecognizer:gesture];
objc_setAssociatedObject(self, &kDTActionHandlerLongPressGestureKey, gesture, OBJC_ASSOCIATION_RETAIN);
}
objc_setAssociatedObject(self, &kDTActionHandlerLongPressBlockKey, block, OBJC_ASSOCIATION_COPY);
}
- (void)__handleActionForLongPressGesture:(UITapGestureRecognizer *)gesture
{
if (gesture.state == UIGestureRecognizerStateBegan)
{
void(^action)(void) = objc_getAssociatedObject(self, &kDTActionHandlerLongPressBlockKey);
if (action)
{
action();
}
}
}
@end
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