swizz
Swizz a class's method implementation. Print a class's public and private property list and method list.
Method List
@interface NSObject (swizz)
/**
swizzle method
*/
+ (void)exchangeMethod:(SEL)oriSEL;
/**
print property and ivar list
*/
+ (void)printIvarList;
/**
print method list
*/
+ (void)printMethodList;
@end
Usage
For example check UIStatusBarManager out which was introduced in iOS13.
#import "ViewController.h"
#import "NSObject+swizz.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
[UIStatusBarManager printIvarList];
[UIStatusBarManager printMethodList];
}
@end
/// console log
ivar: _statusBarHidden class: B
ivar: _inStatusBarFadeAnimation class: B
ivar: _statusBarStyle class: q
ivar: _windowScene class: @"UIWindowScene"
ivar: _localStatusBars class: @"NSMutableSet"
ivar: _statusBarPartStyles class: @"NSDictionary
ivar: _statusBarAlpha class: d
ivar: _debugMenuHandler class: @?
方法: .cxx_destruct () return: v
方法: windowScene () return: @
方法: statusBarFrame () return: {CGRect={CGPoint=
方法: _setScene: (参数1 @ ) return: v
方法: initWithScene: (参数1 @ ) return: @
方法: _scene () return: @
方法: _settingsDiffActionsForScene: (参数1 @ ) ret
方法: setWindowScene: (参数1 @ ) return: v
方法: isStatusBarHidden () return: B
方法: statusBarStyle () return: q
方法: statusBarHeight () return: d
方法: setDebugMenuHandler: (参数1 @? ) return: v
方法: handleTapAction: (参数1 @ ) return: v
方法: _updateAlpha () return: B
方法: statusBarHidden () return: B
方法: statusBarPartStyles () return: @
方法: statusBarAlpha () return: d
方法: defaultStatusBarHeightInOrientation: (参数1
方法: updateStatusBarAppearance () return: v
方法: updateLocalStatusBars () return: v
方法: setupForSingleLocalStatusBar () return: v
方法: statusBarFrameForStatusBarHeight: (参数1 d )
方法: updateStatusBarAppearanceWithAnimationParam
方法: _updateStatusBarAppearanceWithClientSetting
方法: _updateVisibilityForWindow:targetOrientatio
方法: _updateStyleForWindow:animationParameters:
方法: _visibilityChangedWithOriginalOrientation:t
方法: activateLocalStatusBar: (参数1 @ ) return: v
方法: _updateLocalStatusBar: (参数1 @ ) return: v
方法: _handleScrollToTopAtXPosition: (参数1 d ) re
方法: _adjustedLocationForXPosition: (参数1 d ) re
方法: updateStatusBarAppearanceWithClientSettings
方法: deactivateLocalStatusBar: (参数1 @ ) return:
方法: createLocalStatusBar () return: @
方法: localStatusBars () return: @
方法: setLocalStatusBars: (参数1 @ ) return: v
方法: isInStatusBarFadeAnimation () return: B
方法: debugMenuHandler () return: @?
如何检测在 iOS13 上状态栏的点击事件
How to detect a status bar click event in iOS13?
在 iOS13 上状态栏的点击事件由 UIStatusBarManager 单独管理，通过打印 UIStatusBarManager 的私有方法，找到点击事件的处理方法 handleTapAction:，通过 hook 该方法发送自定义通知，即可通过监听改通知来实现自定义的状态栏点击处理。
#ifdef __IPHONE_13_0
#import "UIStatusBarManager+IKHandleTapAction.h"
#import <RSSwizzle/RSSwizzle.h>
@implementation UIStatusBarManager (IKHandleTapAction)
+ (void)load {
if (@available(iOS 13.0, *)) {
SEL sel = NSSelectorFromString(@"handleTapAction:");
if ([UIStatusBarManager instancesRespondToSelector:sel]) {
RSSwizzleInstanceMethod(UIStatusBarManager,
NSSelectorFromString(@"handleTapAction:"),
RSSWReturnType(void),
RSSWArguments(id object),
RSSWReplacement({
RSSWCallOriginal(object);
if (@available(iOS 13.0, *)) {
[[NSNotificationCenter defaultCenter] postNotificationName:IKStatusBarWidnowTapActionNotification object:nil];
}
}), RSSwizzleModeAlways, NULL);
}
}
}
@end
#endif