将slider滑块从横着变为竖着的时候坐标变换的计算
//
// ViewController.m
// imageview添加按钮
//
// Created by hehe on 15/9/22.
// Copyright (c) 2015年 wang.hehe. All rights reserved.
//
#import "ViewController.h"
#define ws self.view.bounds.size.width
#define hs self.view.bounds.size.height
@interface ViewController ()
{
int x,y,w,l;
}
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
float w1 = self.view.bounds.size.width;
float h1 = self.view.bounds.size.height;
NSLog(@"宽=%.1f,高=%.1f",w1,h1);
w=hs; //480 长度
l=50;//宽
x=ws-hs/2;//x位置
y=hs/2-l/2;//y位置
[self creatSlider];
[self creatSlider1];
}
#pragma mark -------实现button的onClick方法
- (void)onClick:(UIButton *)btn
{
static int i = 0;
NSLog(@"%d",i++);
}
#pragma mark ------------------------滑块
- (void)creatSlider1
{
UISlider *slider = [[UISlider alloc] initWithFrame:CGRectMake(x, y, w, l)];
[self.view addSubview:slider];
//设置最小值
slider.minimumValue = 0;
slider.maximumValue = 100;
slider.value = 20;
slider.tintColor = [UIColor greenColor];
slider.minimumTrackTintColor = [UIColor redColor];
slider.maximumTrackTintColor = [UIColor purpleColor];
slider.thumbTintColor = [UIColor blueColor];
//@property(nonatomic,retain) UIColor *thumbTintColor NS_AVAILABLE_IOS(5_0) UI_APPEARANCE_SELECTOR; ????????????
slider.minimumValueImage = [UIImage imageNamed:@"min"];
slider.maximumValueImage = [UIImage imageNamed:@"max"];
[slider setThumbImage:[UIImage imageNamed:@"min"] forState:UIControlStateHighlighted];
//注册事件
[slider addTarget:self action:@selector(onSliderChanged1:) forControlEvents:UIControlEventValueChanged];
slider.continuous = NO;
}
- (void)onSliderChanged1:(UISlider *)slider
{
NSLog(@"slider1 = %f",slider.value);
}
#pragma mark ------------------------滑块
- (void)creatSlider
{
UISlider *slider = [[UISlider alloc] initWithFrame:CGRectMake(x, y, w, l)];
[self.view addSubview:slider];
//设置最小值
slider.minimumValue = 0;
slider.maximumValue = 100;
slider.value = 20;
slider.tintColor = [UIColor greenColor];
slider.minimumTrackTintColor = [UIColor redColor];
slider.maximumTrackTintColor = [UIColor purpleColor];
slider.thumbTintColor = [UIColor blueColor];
//@property(nonatomic,retain) UIColor *thumbTintColor NS_AVAILABLE_IOS(5_0) UI_APPEARANCE_SELECTOR; ????????????
slider.minimumValueImage = [UIImage imageNamed:@"min"];
slider.maximumValueImage = [UIImage imageNamed:@"max"];
[slider setThumbImage:[UIImage imageNamed:@"min"] forState:UIControlStateHighlighted];
slider.transform=CGAffineTransformMakeRotation(M_PI_2);
//注册事件
[slider addTarget:self action:@selector(onSliderChanged:) forControlEvents:UIControlEventValueChanged];
slider.continuous = NO;
}
- (void)onSliderChanged:(UISlider *)slider
{
NSLog(@"slider = %f",slider.value);
}
@end