//创建计步器
-(void)createStepper
{
//<1>创建对象
UIStepper * stepper = [[UIStepper alloc]initWithFrame:CGRectMake(100, 100, 100, 30)];
//<2>为stepper添加背景颜色
//stepper.backgroundColor = [UIColor redColor];
//默认背景颜色是无色的
//<3>设置stepper的边框颜色
stepper.tintColor = [UIColor redColor];
//边框默认的背景颜色为蓝色
//<4>设置计步器的最小值
stepper.minimumValue = 0;
//<5>设置计步器的最大值
stepper.maximumValue = 100;
//<6>设置当前计步器的值
stepper.value = 0;
//<7>设置计步器的步长(点击+ -的时候value值的变化)
stepper.stepValue = 10;
//<8>计步器的点击事件
[stepper addTarget:self action:@selector(pressStepper:) forControlEvents:UIControlEventValueChanged];
//<9>关闭长按功能
//stepper.continuous = NO; 旧的属性
stepper.autorepeat = NO;//新的属性(方法)
stepper.tag = 99;
[self.view addSubview:stepper];
}
//创建进度条
-(void)createProgress
{
//创建对象
//进度条样式
/*
UIProgressViewStyleDefault
UIProgressViewStyleBar
*/
UIProgressView * progressView = [[UIProgressView alloc]initWithProgressViewStyle:UIProgressViewStyleDefault];
progressView.frame = CGRectMake(10, 300, 300, 10);
//<1>设置进度条左侧的颜色
[progressView setProgressTintColor:[UIColor blueColor]];
//<2>设置进度条右侧的颜色
[progressView setTrackTintColor:[UIColor yellowColor]];
//<3>设置进度条当前的显示的位置
progressView.progress = 0;
//progress的值 取值范围是(0~1)这个是固定的不能修改
//如果progress的值大于1 那么进度一直处于充满状态
//<4>添加tag值
progressView.tag = 1;
[self.view addSubview:progressView];
}
-(void)pressStepper:(id)sender
{
//id表示任意类型的对象指针
//sender表示与用户交互的控件对象 这种机制布置button具有 所有控件都可以使用这种机制传递参数
UIStepper * stepper = (UIStepper *)sender;
UIProgressView * progress = (UIProgressView *)[self.view viewWithTag:1];
//点击stepper修改progressView控件的progress值
//stepper的最大值stepper.maximumValue
progress.progress = stepper.value / stepper.maximumValue;
NSLog(@"%f",stepper.value);
if(progress.progress == 1)
{
[self presentViewController:next animated:YES completion:nil];
}
}
- (void)viewDidLoad
{
[super viewDidLoad];
self.view.backgroundColor = [UIColor cyanColor];
//进度条与用户不能进行交互
//使用计步器控制进度条的状态
[self createStepper];
[self createProgress];
next = [[NextViewController alloc]init];
}
-(void)viewWillAppear:(BOOL)animated
{
UIStepper * stepper = (UIStepper *)[self.view viewWithTag:99];
UIProgressView * progressView = (UIProgressView *)[self.view viewWithTag:1];
progressView.progress = 0;
stepper.value = 0;
}