ios - UIPageControl - UISwitch - UISlider

- UIPageControl

创建:
UIPageControl *pageC = [[UIPageControl alloc] initWithFrame:CGRectMake(100, 100, 100, 100)];

  • 常用属性

    1.page控制器页数

    pageC.numberOfPages = 5;

    2.page控制器当前页数(默认0)

    pageC.currentPage = 3;

    3.page控制器页数颜色

    pageC.pageIndicatorTintColor = [UIColor blackColor];

    4.page控制器当前页数颜色 (默认白色)

    pageC.currentPageIndicatorTintColor = [UIColor redColor];

    5.page控制器单页时隐藏(默认NO

    pageC.hidesForSinglePage = YES;

6.更新page控制器的当前页码 (默认NO; 设置YES后,点击不会改变page控制器显示的当前页码点)

pageC.defersCurrentPageDisplay = YES;
  • 常用方法

**1.根据页数自适应尺寸 **

[pageC sizeForNumberOfPages:3];

2.更新page控制器的当前页码(手动更新)

[pageC updateCurrentPageDisplay];

- UISwitch

创建:
UISwitch *yjswitch = [[UISwitch alloc] initWithFrame:CGRectMake(100, 100, 100, 100)];

  • 常用属性

    1.开关开启的颜色(默认绿色)

    yjswitch.onTintColor = [UIColor blackColor];

    2.未开启的颜色(默认白色)

    yjswitch.tintColor = [UIColor redColor];

    3.开关按钮颜色

    yjswitch.thumbTintColor = [UIColor yellowColor];

    4.开启开关 (默认NO)

    yjswitch.on = YES;
    或者动态设置开启
    [yjswitch setOn:YES animated:YES];

    5.开启时图片

    yjswitch.onImage = [UIImage imageNamed:@""];

6.未开启时图片

yjswitch.offImage = [UIImage imageNamed:@""];

- UISlider

slider.value = 55;
[slider setValue:55 animated:YES];

创建:
UISlider * slider = [[UISlider alloc]initWithFrame:CGRectMake(100, 100, 100, 100)];

  • 常用属性

    1.滑块最小值(默认0)

    slider.minimumValue = 10;

    2.滑块最大值(默认1)

    slider.maximumValue = 100;

    3.滑块动态变化(默认 NO)
    这个属性设置为YES时在滑动时,其value就会随时变化,设置为NO,则当滑动结束时,value才会改变
    slider.continuous = YES;

    4.滑块的左边图片

    slider.minimumValueImage = [UIImage imageNamed:@"leftitem_down"];
    或者动态设置开启

    5.滑块的右边图片

    slider.maximumValueImage = [UIImage imageNamed:@"leftitem_down"];

6.已划过线条的颜色

slider.minimumTrackTintColor = [UIColor redColor];

7.未滑过线条的颜色

slider.maximumTrackTintColor = [UIColor greenColor];

8.滑块的颜色

slider.thumbTintColor = [UIColor blackColor]; 

9.设置滑块值

slider.value = 55;
或动态设置
[slider setValue:55 animated:YES];
  • 方法

设置的内容和上文中的对应属性一样,只是添加可根据状态来设置

    [slider setThumbImage:[UIImage imageNamed:@""] forState:UIControlStateNormal];
    [slider setMinimumTrackImage:[UIImage imageNamed:@""] forState:UIControlStateNormal];
    [slider setMaximumTrackImage:[UIImage imageNamed:@""]      forState:UIControlStateNormal];

一般用于在子类化按钮的时候重载下面这些方法, 返回CGRect,指明按钮每组成部分的边界,达到定制属于自己的按钮类。
注意:不要直接调用这些方法, 这些方法是你写给系统调用的。

    - (CGRect)minimumValueImageRectForBounds:(CGRect)bounds;
    - (CGRect)maximumValueImageRectForBounds:(CGRect)bounds;
    - (CGRect)trackRectForBounds:(CGRect)bounds;
    - (CGRect)thumbRectForBounds:(CGRect)bounds trackRect:(CGRect)rect value:(float)value;
  • 获取信息方法

    UIImage *thumbImage = [slider thumbImageForState:UIControlStateNormal];
    UIImage *minImage = [slider minimumTrackImageForState:UIControlStateNormal];
    UIImage *maxImage = [slider maximumTrackImageForState:UIControlStateNormal];
    
    UIImage *thumbImage1 = slider.currentThumbImage;
    UIImage *minImage1 = slider.minimumValueImage;
    UIImage *maxImage1 = slider.maximumValueImage;

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