Jitter of some controls in IOS and IOS

Jitter of some controls in IOS and IOS

 

I saw a post on the Internet over the past two days to discuss the jitter effect when some apps enter the account and password. Then I figured out how to implement it. The code below is shown !!!

First, write a category for the UIView.

 

1 # import <UIKit/UIKit. h> 2 3 typedef NS_ENUM (NSInteger, QHLDirection) {4 rows, 5 QHLDirectionVertical 6}; 7 @ interface UIView (QHLShakes) 8-(void) Direction :( QHLDirection) shakeDirection; 9-(void) shakeWithTimes :( NSInteger) times shakeDirection :( QHLDirection) shakeDirection; 10-(void) shakeWithTimes :( NSInteger) times speed :( CGFloat) speed shakeDirection :( QHLDirection) ShakeDirection; 11-(void) shakeWithTimes :( NSInteger) times speed :( CGFloat) speed range :( CGFloat) range shakeDirection :( QHLDirection) shakeDirection; 12 @ end13 14 15 16 # import "UIView + QHLShakes. h "17 18 @ implementation UIView (QHLShakes) 19-(void) Direction :( QHLDirection) shakeDirection {20 [self shakeWithTimes: 10 speed: 0.05 range: 5 shakeDirection: shakeDirection]; 21} 22 23-(void) shakeWit HTimes :( NSInteger) times shakeDirection :( QHLDirection) shakeDirection {24 [self direction: times speed: 0.05 range: 5 shakeDirection: shakeDirection]; 25} 26 27-(void) shakeWithTimes :( NSInteger) times speed :( CGFloat) speed shakeDirection :( QHLDirection) shakeDirection {28 [self shakeWithTimes: times speed: speed range: 5 shakeDirection: shakeDirection]; 29} 30 31-(void) shakeWithTimes :( NSInteger) times spee D :( CGFloat) speed range :( CGFloat) range shakeDirection :( QHLDirection) shakeDirection {32 [self direction: times speed: speed range: range shakeDirection: shakeDirection currentTimes: 0 direction: 1]; 33} 34/** 35 * @ param times: 36 * @ param speed: 37 * @ param range: 38 * @ param shakeDirection: Direction of the Vibration 39 * @ param currentTimes the current number of vibrations 40 * @ param direction to which side of the vibration 41 */42-(void) viewShakesW IthTiems :( NSInteger) times speed :( CGFloat) speed range :( CGFloat) range shakeDirection :( QHLDirection) shakeDirection currentTimes :( NSInteger) currentTimes direction :( int) direction {43 44 [UIView progress: speed animations: ^ {45 self. transform = (shakeDirection = qhldirehorhorizontal )? CGAffineTransformMakeTranslation (range * direction, 0): CGAffineTransformMakeTranslation (0, range * direction); 46} completion: ^ (BOOL finished) {47 if (currentTimes> = times) {48 [UIView animateWithDuration: speed animations: ^ {49 self. transform = CGAffineTransformIdentity; 50}]; 51 return; 52} 53 # pragma mark-loop to times = currentTimes will jump out of this method 54 [self viewShakesWithTiems: times-155 speed: speed56 range: range57 shakeDirection: shakeDirection58 currentTimes: currentTimes + 159 direction: direction *-1]; 60}]; 61} 62 @ en

In ViewController. m

Import the header file # import "UIView + QHLShakes. h"

1 # import "ViewController. h "2 # import" UIView + QHLShakes. h "3 4 # define QHLFont [UIFont boldSystemFontOfSize: 17] 5 # define QHLColor [UIColor purpleColor] 6 # define QHLCGColor [QHLColor CGColor] 7 8 @ interface ViewController () 9 @ property (nonatomic, strong) UITextField * show; 10 @ property (nonatomic, strong) UISegmentedControl * directBtn; 11 @ end12 13 @ implementation ViewController14 15-(void) view DidLoad {16 [super viewDidLoad]; 17 [self setUpShowTextField]; 18 [self setUpBtn]; 19} 20 21 # pragma mark-show22-(void) setUpShowTextField {23 UITextField * show = [[UITextField alloc] init]; 24 show. frame = CGRectMake (30,360,270, 30); 25 show. textAlignment = NSTextAlignmentCenter; 26 show. text = @ "Are you a pig? "; 27 show. textColor = QHLColor; 28 show. layer. cornerRadius = 5; 29 show. layer. masksToBounds = YES; 30 show. layer. borderWidth = 2.0; 31 show. layer. borderColor = QHLCGColor; 32 self. show = show; 33 [self. view addSubview: show]; 34} 35 # pragma mark-btn36-(void) setUpBtn {37 UIButton * btn = [[UIButton alloc] init]; 38 btn. layer. borderColor = QHLCGColor; 39 btn. frame = CGRectMake (30,430,270, 30); 40 btn. layer. BorderWidth = 2.0; 41 btn. layer. cornerRadius = 5; 42 btn. layer. masksToBounds = YES; 43 [btn setTitle: @ "Click me" forState: UIControlStateNormal]; 44 [btn setTitle: @ "" forState: UIControlStateHighlighted]; 45 [btn setTitleColor: QHLColor forState: UIControlStateNormal]; 46 [self. view addSubview: btn]; 47 48 [btn addTarget: self action: @ selector (btnDidClick) forControlEvents: UIControlEventTouchUpInside]; 49} 50 # p Ragma mark-btn Click Event 51-(void) btnDidClick {52 [self. show shakeWithTimes: 20 speed: 0.05 range: 3 shakeDirection :( self. directBtn. selectedSegmentIndex = 0 )? Qhldirehorizontal: QHLDirectionVertical]; 53} 54 @ end

 

Add a textField and button in-(void) viewDidLoad {}, SET related properties, and add a click event to the button.

 

TextField jitter when a click event is triggered !!!!

 

 

I tried the jitter effects of textField and button myself ~~~

If something is wrong with the novice scum, please give me some advice !!!