IOS-UIButton/UIImageView/UISlider/UISwitch

 

1. CGRect frame

1> indicates the position and size of the control (with the upper left corner of the parent control as the coordinate origin (0, 0 ))

2> modify this property to adjust the widget's position and size.

 

2. CGPoint center

1> indicates the midpoint of the control (with the upper left corner of the parent control as the coordinate origin)

2> modify this property to adjust the widget location

 

3. CGRect bounds

1> indicates the position and size of the control (with the coordinates of the origin in the upper left corner of the control, the position is always (0, 0 ))

2> to modify this attribute, you can only adjust the widget size.

 

4. int tag

1> Control ID

2> different controls can be distinguished by different identifiers

 

5. CGAffineTransform transform

1> represents the control's deformation status (rotation angle, scaling ratio)

2> Create a CGAffineTransform Function

* *** [Self. view addSubview: subcontrol];

 

 

 

[Self. view addSubview: subcontrol];

 

3. Set button Properties

UIButton *btn =btn.frame = CGRectMake(, , , UIImage *normal = [UIImage imageNamed:[btn setTitle:UIImage *high = [UIImage imageNamed:[btn setTitle:[btn addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventTouchUpInside];

 

 

1. This is a controller method.

2. When the Controller's view is created, it is called once.

 

 

1. The value attribute can get the current progress value.

2. If the value of the button changes, the UIControlEventValueChanged event is triggered.

 

 

1. When loading a plist file, a plist Root Node object (Root) will be returned)

 

 

1. Use NSBundle to access the content of a resource package

 

2. If you access the content of the most important resource package in the software, use mainBundle.

NSBundle * bundle = [NSBundle mainBundle];

 

3. Use NSBundle to obtain the full file path

NSString * path = [bundle pathForResource: @ "descs" ofType: @ "plist"];

 

　　　　　　　　　　　　　　　　　　　　　　　　　　

ViewController. h

  <UIKit/UIKit.h>   @property (weak, nonatomic) IBOutlet UIButton *   - (IBAction)reset:(   - (IBAction)run:(  - (IBAction)scale:(  - (IBAction)rotate:( 

 

ViewController. m

KDelta 50-() btnClickWithBlock :( (^ [UIView setAnimationDuration: mark control button (up and down)-(IBAction) run :( [self btnClickWithBlock: ^ CGPoint tempCenter = tag =: tempCenter. y-=: tempCenter. x + =: tempCenter. y + =: tempCenter. x-= _ btn. center = mark zoom in/out-(IBAction) scale :( [self btnClickWithBlock: ^ CGFloat scale = [sender tag] =?: _ Btn. transform = mark left rotation \ right rotation-(IBAction) rotate :( [self btnClickWithBlock: ^ tag = (= tag) {_ btn. transform = CGAffineTransformRotate (_ btn. transform, M_PI_4 *-} {_ btn. transform = CGAffineTransformRotate (_ btn. transform, M_PI_4 * mark reset-(IBAction) reset :( [self btnClickWithBlock: ^ _ btn. transform =

 

8. Examples and simple image browsers

 

 

ViewController. h

  <UIKit/UIKit.h>   - (IBAction)nightMode:(UISwitch * - (IBAction)imageSizeChange:(UISlider * - - (IBAction)sliderValueChange:(UISlider * @property (weak, nonatomic) IBOutlet UIImageView * @property (weak, nonatomic) IBOutlet UILabel * @property (weak, nonatomic) IBOutlet UILabel * @property (weak, nonatomic) IBOutlet UIView *  

ViewController. m

After the view of the NSArray * mark controller is loaded, it is called once (NSBundle * bundle = NSString * path = [bundle pathForResource: ofType: _ allDescs = _ imageDesc. text = _ allDescs [mark night mode-(IBAction) nightMode :( UISwitch * (sender. on) {self. view. backgroundColor =}{ self. view. backgroundColor = mark image size changed-(IBAction) imageSizeChange :( UISlider * _ imageView. transform = mark click Settings-[UIView setAnimationDuration: CGPoint tempCenter = (_ settingView. frame. origin. y = self. view. frame. size. height) {tempCenter. y-=} {tempCenter. y + = _ settingView. center = mark slider value change-(IBAction) sliderValueChange :( UISlider * NSString * imageName = [NSString stringWithFormat: _ imageView. image = _ imageNo. text = [NSString stringWithFormat:, sender. value + no = () (sender. value + _ imageDesc. text =

 

Thanks! Clear Saup