http://www.starfelix.com/blog/2014/03/17/lldbdiao-shi-ming-ling-chu-tan/
0xCalcifer 0xlitf
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| - (UIViewController *)viewController { | |
| for (UIView* next = [self superview]; next; next = next.superview) { | |
| UIResponder *nextResponder = [next nextResponder]; | |
| if ([nextResponder isKindOfClass:[UIViewController class]]) { | |
| return (UIViewController *)nextResponder; | |
| } | |
| } | |
| return nil; | |
| } |
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| find . "(" -name "*.m" -or -name "*.mm" -or -name "*.cpp" -or -name "*.h" -or -name "*.rss" ")" -print | xargs wc -l |
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| UIPanGestureRecognizer *panGesture = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panGestureHandler:)]; | |
| [panGesture setMinimumNumberOfTouches:1]; | |
| [self.currentlistPageController.listPageView.planTableView addGestureRecognizer:panGesture]; | |
| - (void)panGestureHandler:(UIPanGestureRecognizer *)sender { | |
| static double transitionOriginX; |
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| //create | |
| NSFileManager * fileManager = [NSFileManager defaultManager]; | |
| if ([fileManager fileExistsAtPath:self.dbPath] == NO) { | |
| // create it | |
| FMDatabase * db = [FMDatabase databaseWithPath:self.dbPath]; | |
| if ([db open]) { | |
| NSString * sql = @"CREATE TABLE 'User' ('id' INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL , 'name' VARCHAR(30), 'password' VARCHAR(30))"; | |
| BOOL res = [db executeUpdate:sql]; | |
| if (!res) { | |
| debugLog(@"error when creating db table"); |
0xlitf
/ NSNotificationCenter
Last active
December 4, 2015 13:44
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| [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(changeNavigationBarAlpha:) name:@"changeNavigationBarAlpha" object:nil]; | |
| [[NSNotificationCenter defaultCenter] postNotificationName:@"changeNavigationBarAlpha" object:[NSString stringWithFormat:@"%f",a]]; | |
| [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(callBack1:) name:@"PosterOne" object:nil]; | |
| [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(callBack2:) name:@"PosterTwo" object:nil]; | |
| -(void)callBack1:(NSNotification*)notification{ |
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| http://www.git-tower.com/blog/content/posts/git-cheat-sheet-cn/git-cheat-sheet-large01-cn.png |
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| NSURL *url = [NSURL URLWithString:@"prefs:root=LOCATION_SERVICES"]; | |
| if ([[UIApplication sharedApplication] canOpenURL:url]) | |
| { | |
| [[UIApplication sharedApplication] openURL:url]; | |
| } | |
| About — prefs:root=General&path=About | |
| Accessibility — prefs:root=General&path=ACCESSIBILITY | |
| Airplane Mode On — prefs:root=AIRPLANE_MODE |
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| iOS 事件处理机制与图像渲染过程 | |
| iOS RunLoop都干了什么 | |
| iOS 为什么必须在主线程中操作UI | |
| 事件响应 | |
| CALayer | |
| CADisplayLink 和 NSTimer | |
| iOS 渲染过程 | |
| 渲染时机 | |
| CPU 和 GPU渲染 | |
| Core Animation |
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| #define instance_interface(className, instanceMothed) \ | |
| \ | |
| +(instancetype)instanceMothed; | |
| //实现方法 | |
| #define instance_implementation(className, instanceMothed) \ | |
| \ | |
| static className *_instance;\ | |
| \ |
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