//城市列表的plist文件百度吧
.h
//需要添加<UIPickerViewDataSource,UIPickerViewDelegate>
///城市数组@property (nonatomic, strong) NSArray *cityArray;
///选择行数@property (assign ,nonatomic) NSInteger rowInProvince;
///选择器@property (nonatomic, strong) UIPickerView *pickerView;
@property (nonatomic, assign) iddelegate;
- (id)initWithFrame:(CGRect)frame dataArray:(NSArray *)cityArray;
///显示pickerView- (void)showPickerView;
///隐藏pickerView- (void)hidePickerView;@end@protocol CityPickerViewDelegate
///点击关闭
- (void)clickCancelButton;
///点击完成
- (void)clickCompleteButtonWithString:(NSString *)contentString;
.m
- (id)initWithFrame:(CGRect)frame dataArray:(NSArray *)cityArray
{
self = [super initWithFrame:frame];
if (self)
{
self.frame = CGRectMake(0, kMainScreenHeight, kMainScreenWidth, 44+216);
self.cityArray = [[NSArray alloc] initWithArray:cityArray];
UIImageView *bgImageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, kMainScreenWidth, 44)];
//bgImageView.image = [UIImage imageNamed:<#(NSString *)#>];
bgImageView.backgroundColor = [UIColor colorWithRed:234.0f/255.0f green:234.0f/255.0f blue:234.0f/255.0f alpha:1];
bgImageView.userInteractionEnabled = YES;
[self addSubview:bgImageView];
///取消
UIButton *cancelButton = [UIButton buttonWithType:UIButtonTypeCustom];
cancelButton.frame = CGRectMake(0, 0, 60, 44);
[cancelButton setTitle:@"关闭" forState:UIControlStateNormal];
[cancelButton setTitleColor:[UIColor colorWithRed:237.0f/255.0f green:101.0f/255.0f blue:105.0f/255.0f alpha:1] forState:UIControlStateNormal];
[cancelButton.titleLabel setFont:[UIFont systemFontOfSize:15]];
[cancelButton addTarget:self action:@selector(clickCancelButton) forControlEvents:UIControlEventTouchUpInside];
[bgImageView addSubview:cancelButton];
///完成
UIButton *completeButton = [UIButton buttonWithType:UIButtonTypeCustom];
completeButton.frame = CGRectMake(kMainScreenWidth-60, 0, 60, 44);
[completeButton setTitle:@"完成" forState:UIControlStateNormal];
[completeButton setTitleColor:[UIColor colorWithRed:237.0f/255.0f green:101.0f/255.0f blue:105.0f/255.0f alpha:1] forState:UIControlStateNormal];
[completeButton.titleLabel setFont:[UIFont systemFontOfSize:15]];
[completeButton addTarget:self action:@selector(clickCompleteButton) forControlEvents:UIControlEventTouchUpInside];
[bgImageView addSubview:completeButton];
self.pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(0, bgImageView.frame.size.height, kMainScreenWidth, 216)];
self.pickerView.dataSource = self;
self.pickerView.delegate = self;
self.pickerView.backgroundColor = [UIColor whiteColor];
[self addSubview:self.pickerView];
}
return self;
}
#pragma mark dataSouce
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
return 2;
}
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component {
if (component == 0)
{
return self.cityArray.count;
}else
{
return [[[self.cityArray objectAtIndex:self.rowInProvince] objectForKey:@"Cities"] count];
}
}
#pragma mark delegate
/**
//定义字体的大小
- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view
{
UILabel *myView = nil;
if (component == 0) {
myView = [[UILabel alloc] init];
myView.textAlignment = NSTextAlignmentCenter;
myView.text = [[self.cityArray objectAtIndex:row] objectForKey:@"State"];
myView.font = [UIFont systemFontOfSize:15]; //用label来设置字体大小
myView.backgroundColor = [UIColor clearColor];
}else {
myView = [[UILabel alloc] init];
myView.text = [[[[self.cityArray objectAtIndex:self.rowInProvince] objectForKey:@"Cities"] objectAtIndex:row] objectForKey:@"city"];
myView.textAlignment = NSTextAlignmentCenter;
myView.font = [UIFont systemFontOfSize:15];
myView.backgroundColor = [UIColor clearColor];
}
return myView;
}
//更改组键的宽度
- (CGFloat)pickerView:(UIPickerView *)pickerView widthForComponent:(NSInteger)component
{
CGFloat componentWidth = 0.0;
if (component == 0)
componentWidth = 100.0; // 第一个组键的宽度
else
componentWidth = 180.0; // 第2个组键的宽度
return componentWidth;
}
//更改row的高度
- (CGFloat)pickerView:(UIPickerView *)pickerView rowHeightForComponent:(NSInteger)component
{
return 40.0;
}
*/
- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
if (component == 0) {
return [[self.cityArray objectAtIndex:row] objectForKey:@"State"];
}
else {
return [[[[self.cityArray objectAtIndex:self.rowInProvince] objectForKey:@"Cities"] objectAtIndex:row] objectForKey:@"city"];
}
}
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
if (component == 0){
self.rowInProvince = row;
[self.pickerView reloadComponent:1];
}
}
///显示pickerView
- (void)showPickerView
{
[UIView animateWithDuration:0.3 animations:^{
self.frame = CGRectMake(0, kMainScreenHeight-44-216, kMainScreenWidth, self.frame.size.height);
} completion:^(BOOL finished) {
;
}];
}
///隐藏pickerView
- (void)hidePickerView
{
[UIView animateWithDuration:0.3 animations:^{
self.frame = CGRectMake(0, kMainScreenHeight, kMainScreenWidth, self.frame.size.height);
} completion:^(BOOL finished) {
;
}];
}
///关闭
- (void)clickCancelButton
{
[self hidePickerView];
if ([_delegate respondsToSelector:@selector(clickCompleteButtonWithString:)])
{
[_delegate clickCancelButton];
}
}
///完成
- (void)clickCompleteButton
{
[self hidePickerView];
NSString *titleString = [NSString stringWithFormat:@"%@ %@",[[self.cityArray objectAtIndex:[self.pickerView selectedRowInComponent:0]] objectForKey:@"State"],[[[[self.cityArray objectAtIndex:self.rowInProvince] objectForKey:@"Cities"] objectAtIndex:[self.pickerView selectedRowInComponent:1]] objectForKey:@"city"]];
if ([_delegate respondsToSelector:@selector(clickCompleteButtonWithString:)])
{
[_delegate clickCompleteButtonWithString:titleString];
}
}
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