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iOS開發-UI (一)常用控件

編輯：IOS開發綜合

從這裡開端是UI篇

知識點:

1.常用IOS根本控件

2.UITouch

=======================

常用根本控件

1.UISegmentedControl:分段控制器

1）創立方式

- (id)initWithItems:(NSArray *)items;

items數組中可以有NSString或許是UIImage對象

UISegmentedControl *seg = [[UISegmentedControl alloc] initWithItems:@[@"廣州",@"深圳",@"珠海"]];

2）常用屬性

設置標題/圖片(留意下標范圍從0~segments-1)

- (void)setTitle:(NSString *)title forSegmentAtIndex:(NSUInteger)segment

- (void)setImage:(UIImage *)image forSegmentAtIndex:(NSUInteger)segment

[seg setImage:[UIImage imageNamed:@"refresh_30"] forSegmentAtIndex:2];

拔出標題/圖片

- (void)insertSegmentWithTitle:(NSString *)title 

              atIndex:(NSUInteger)segment 

      animated:(BOOL)animated

- (void)insertSegmentWithImage:(UIImage *)image  

      atIndex:(NSUInteger)segment 

      animated:(BOOL)animated

//拔出

[seg insertSegmentWithTitle:@"湛江" atIndex:3 animated:YES];

移除內容

- (void)removeSegmentAtIndex:(NSUInteger)segment animated:(BOOL)animated

- (void)removeAllSegments

//移除某一個分段

[seg removeSegmentAtIndex:0 animated:YES];

//移除一切分段

[seg removeAllSegments];

事情處置

- (void)addTarget:(id)target

action:(SEL)action

forControlEvents:(UIControlEvents)controlEvents

3)事情處置

UIControlEventValueChanged

//添加事情

//留意事情類型運用：UIControlEventValueChanged

[seg addTarget:self action:@selector(segAction:) forControlEvents:UIControlEventValueChanged];

2.UISlider:滑塊

1）創立方式

2）常用屬性

以後value

property(nonatomic) float value

//實例化一個UISlider

UISlider *slider = [[UISlider alloc] initWithFrame:CGRectMake(10, 80, 200, 100)];

//設置默許滑塊的地位(默許是0 - 1范圍)

slider.value = 0.5;

最小value

@property(nonatomic) float minimumValue

最大value

@property(nonatomic) float maximumValue

//修正最大最小值

slider.minimumValue = 10;

slider.maximumValue = 100;

3)定制UI

@property(nonatomic,retain) UIColor *minimumTrackTintColor

@property(nonatomic,retain) UIColor *maximumTrackTintColor

@property(nonatomic,retain) UIColor *thumbTintColor 

 

    //添加事情

[slider addTarget:self action:@selector(sliderAction:) forControlEvents:UIControlEventValueChanged];

    

    //設置左右顏色

slider.minimumTrackTintColor = [UIColor redColor];

slider.maximumTrackTintColor = [UIColor yellowColor];

slider.thumbTintColor = [UIColor purpleColor];

3.UISwitch:開關控件

1）創立方式

// 實例化一個UISwitch

UISwitch *swi = [[UISwitch alloc] initWithFrame:CGRectMake(30, 80, 10, 10)];

2）常用屬性

@property(nonatomic, retain) UIColor *onTintColor

@property(nonatomic, retain) UIColor *thumbTintColor

@property(nonatomic,getter=isOn) BOOL on

//設置按鍵顏色

swi.thumbTintColor = [UIColor orangeColor];

//翻開的顏色

swi.onTintColor = [UIColor purpleColor];

//設置開關形態

swi.on = NO;

3）事情處置

[swi addTarget:self action:@selector(swiAction:) forControlEvents:UIControlEventValueChanged];

4.UIActivityIndicatorView

1）創立方式

- (id)initWithActivityIndicatorStyle:(UIActivityIndicatorViewStyle)style

　　　UIActivityIndicatorViewStyleWhiteLarge 大白色

UIActivityIndicatorViewStyleWhite 普通大小白

　　UIActivityIndicatorViewStyleGray 普通大小灰

// 加載視圖

UIActivityIndicatorView *act = [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(30, 100, 200, 200)];

act.activityIndicatorViewStyle = UIActivityIndicatorViewStyleWhiteLarge;

2）常用屬性

開端轉動

- (void)startAnimating;

中止轉動

- (void)stopAnimating;

能否正在轉動

- (BOOL)isAnimating;

顏色

@property (readwrite, nonatomic, retain) UIColor *color

//設置顏色

act.color = [UIColor orangeColor];

//開啟動畫

[act startAnimating];

//中止動畫

[act stopAnimating];

//設置中止動畫仍然顯示

act.hidesWhenStopped = NO;

5.UIProgressView:進度條

1）創立方式

- (id)initWithProgressViewStyle:(UIProgressViewStyle)style

UIProgressView *pro = [[UIProgressView alloc] initWithFrame:CGRectMake(30, 100, 200, 30)];

2）常用屬性

@property(nonatomic) float progress 以後進度

@property(nonatomic, retain) UIColor* trackTintColor

@property(nonatomic, retain) UIColor* progressTintColor

//默許的范圍為0 - 1

//設置進度

pro.progress = 0.5;

//完成進度的顏色

pro.progressTintColor = [UIColor redColor];

//未完成進度的顏色

pro.trackTintColor = [UIColor greenColor];

練習：模擬進度讀取形態

6.UIActionSheet

代理辦法

//實例化一個UIActionSheet

    UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:@"溫馨提示" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:@"吃飯" otherButtonTitles:@"逛街",@"打游戲", @"睡覺",nil];

    

    //顯示UIActionSheet

    [sheet shoWinView:self.view];

 

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex

//點擊回調代理辦法

-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex{

    

    NSLog(@"buttonIndex = %ld",buttonIndex);

    

    switch (buttonIndex) {

        case 0:

        {

            NSLog(@"吃飯");

        }

            break;        

        default:

            break;

    }
}

7.UIAlertView

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{

//實例化一個UIAlertView

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"溫馨提示" message:@"余額缺乏" delegate:self cancelButtonTitle:@"確定" otherButtonTitles:@"搶銀行",@"搬磚",@"找個富婆", nil];

//展現

[alert show];

}

#pragma mark- UIAlertViewDelegate

-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{

NSLog(@"buttonIndex = %ld",buttonIndex);

}

=======================

UITouch

1.如何捕獲觸摸事情

觸摸開端

      - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event;

      挪動

      - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event;

      觸摸完畢

      - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event;

      觸摸被取消(觸摸時分順序被中綴)

      - (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event;

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{

    

    //取得起始坐標

    //獲得觸摸點對象

    UITouch *touch = [touches anyObject];

    //轉換成坐標點

    CGPoint point = [touch locationInView:self.view];

}

2.如何獲取坐標信息

1)獲取到觸摸點

UITouch *touch=[touches anyObject]

//取得起始坐標

//獲得觸摸點對象

UITouch *touch = [touches anyObject];

2)轉換為坐標點

[touch locationInView:self.view]

CGPoint point = [touch locationInView:self.view];

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