寬高不能改變
//定義label 顯示 加減條 值
label = [[UILabel alloc] initWithFrame:CGRectMake(100, 10, 100, 40)];
label.font = [UIFont boldSystemFontOfSize:30.0];
[self.view addSubview:label];
//[label release];
//加減條
UIStepper* stepper = [[UIStepper alloc] initWithFrame:CGRectMake(50, 50, 200, 50)];
//最小值
[stepper setMinimumValue:0.0];
//最大值
[stepper setMaximumValue:10.0];
//步進
[stepper setStepValue:1.0];
//value 是否 循環
[stepper setWraps:YES];
//自動加減
//[stepper setAutorepeat:YES];//按住后時候連續增長還是增長一個單位
//[stepper setContinuous:NO];//按住時是否一直變化，還是松開后再變化，變化多少取決于按住的時長
//事件
[stepper addTarget:self action:@selector(stepper:) forControlEvents:UIControlEventValueChanged];
[self.view addSubview:stepper];
[stepper release];
label.text = [NSString stringWithFormat:@"%.0lf",stepper.value];
/*
//設置控制器背景圖片
- (void)setBackgroundImage:(UIImage*)image forState:(UIControlState)state;
//獲取背景圖片
- (UIImage*)backgroundImageForState:(UIControlState)state;
//通過左右按鈕的狀態設置分割線的圖片
- (void)setDividerImage:(UIImage*)image forLeftSegmentState:(UIControlState)leftState rightSegmentState:(UIControlState)rightState;
//獲取分割線圖片
- (UIImage*)dividerImageForLeftSegmentState:(UIControlState)state rightSegmentState:(UIControlState)state;
//設置和獲取加號按鈕的圖片
- (void)setIncrementImage:(UIImage *)image forState:(UIControlState)state;
- (UIImage *)incrementImageForState:(UIControlState)state;
//設置和獲取減號按鈕的圖片
- (void)setDecrementImage:(UIImage *)image forState:(UIControlState)state;
- (UIImage *)decrementImageForState:(UIControlState)state;
*/
///事件 控制值
- (void)stepper:(UIStepper*)stepper{
label.text = [NSString stringWithFormat:@"%.0lf",stepper.value];
}
