自己封装UIPickerView加一个时间范围
来源：程序员人生 发布时间：2015-08-22 10:04:05 阅读次数：3819次
1.添加代理:
@interface ViewController ()<UIPickerViewDataSource,UIPickerViewDelegate>
2.添加存储数组和视图:
//视图
@property(nonatomic,strong)UIPickerView *pickerView;
//日期
@property(nonatomic,strong)NSMutableArray *dayDateArray;
//消失
@property(nonatomic,strong)NSMutableArray *hoursDateArray;
3创建视图:
- (void)creatBtn{
UIButton *btn = [[UIButton alloc] initWithFrame:CGRectMake(30, 30, 100, 30)];
[btn setTitle:@"点击" forState:UIControlStateNormal];
[btn setTintColor:[UIColor blackColor]];
[btn setBackgroundColor:[UIColor redColor]];
[btn addTarget:self action:@selector(btnAction:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:btn];
}
- (void)btnAction:(UIButton *)sender{
[self creatPicker];
}
- (void)creatPicker{
NSString *strValue ;
for (int i = 0; i < 24; i++) {
if (i + 1 < 10) {
strValue = [NSString stringWithFormat:@"0%d:00 - 0%d:00",i ,i + 1];
}else if(i + 1 == 10){
strValue = [NSString stringWithFormat:@"0%d:00 - %d:00",i ,i + 1];
}else if(i + 1>10 && i + 1 < 24){
strValue = [NSString stringWithFormat:@"%d:00 - %d:00",i ,i + 1];
}else if (i+1 == 24) {
strValue = [NSString stringWithFormat:@"%d:00 - 00:00",i];
}
[self.hoursDateArray addObject:strValue];
}
NSInteger dateMonth = 0;
NSInteger dateDay = 0;
for (int i = 0; i< 31; i++) {
NSDate *date = [NSDate dateWithTimeIntervalSinceNow:i*(24*60*60)];
NSCalendar *calendar = [NSCalendar currentCalendar];
NSDateComponents *comps = [calendar components:(NSCalendarUnitMonth |NSCalendarUnitDay ) fromDate:date];
dateMonth = [comps month];
dateDay = [comps day];
NSString *dateVaule ;
if (i == 0) {
dateVaule = @"今天";
}else{
dateVaule = [NSString stringWithFormat:@"%ld月%ld日",dateMonth,dateDay];
}
[self.dayDateArray addObject:dateVaule];
}
self.pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(50, 50, 200, 200)];
self.pickerView.autoresizingMask = UIViewAutoresizingFlexibleWidth;
self.pickerView.dataSource = self;
self.pickerView.delegate = self;
self.pickerView.showsSelectionIndicator = YES;
[self.view addSubview:self.pickerView];
}
//重写协议方法:
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView{
return 2;
}
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component{
if (component == 0) {
return self.dayDateArray.count;
}else{
return self.hoursDateArray.count;
}
}
- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view{
UILabel *myView = nil;
if (component == 0) {
myView = [[UILabel alloc] initWithFrame:CGRectMake(0.0, 0.0, 100, 30)] ;
myView.textAlignment = NSTextAlignmentCenter;
myView.text = [self.dayDateArray objectAtIndex:row];
myView.font = [UIFont systemFontOfSize:17]; //用label来设置字体大小
myView.backgroundColor = [UIColor clearColor];
}else{
myView = [[UILabel alloc] initWithFrame:CGRectMake(0.0, 0.0, 150, 30)];
myView.text = [self.hoursDateArray objectAtIndex:row];
myView.textAlignment = NSTextAlignmentCenter;
myView.font = [UIFont systemFontOfSize:17];
myView.backgroundColor = [UIColor clearColor];
}
return myView;
}
- (CGFloat)pickerView:(UIPickerView *)pickerView widthHeightForComponent:(NSInteger)component{
if (component == 0) {
return 100;
}else{
return 150;
}
}
- (CGFloat)pickerView:(UIPickerView *)pickerView rowHeightForComponent:(NSInteger)component{
return 30;
}
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component{
if((self.dayDateArray.count⑴>=row && component == 0)&&(self.hoursDateArray.count⑴>= row && component == 1)){
NSString *strVaule = [NSString stringWithFormat:@"%@ %@",[self.dayDateArray objectAtIndex:row],[self.hoursDateArray objectAtIndex:row⑵]];
NSLog(@"%@",strVaule);
}
}
效果:
生活不易，码农辛苦
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