iOS中动态密码（倒计时按钮）按钮Block封装，选取器（UIPickerView）的Block封装，日期选取器（UIDatePicker）的Block封装

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常用的一些控件，封装起来用的时候容易调用。

1：动态密码（倒计时按钮）按钮

实现代码

//////  BlockDynamicPasswordButton.h////  Created by yfc on 16/8/29.////#import <UIKit/UIKit.h>typedef void(^DynamicBtnBlock)(int touchUpNum);@interface BlockDynamicPasswordButton : UIButton{    int         limmit;             //记录秒数    int         countDownNum;       //点击的次数    int         maxCountDownNum;    //能够点击总次数    int         timeInterval;       //时间间隔}@property(nonatomic,copy)DynamicBtnBlock    dynamicBtnBlock;@property(nonatomic,retain)NSTimer          *timer_;-(instancetype)initWithFrame:(CGRect)frame andMaxTouchDownNum:(int)countDownNum_ andTimeInterval:(int)limit_ andClickedAction:(DynamicBtnBlock)block;@end

//////  BlockDynamicPasswordButton.m////  Created by yfc on 16/8/29.////#import "BlockDynamicPasswordButton.h"@implementation BlockDynamicPasswordButton@synthesize timer_;-(instancetype)initWithFrame:(CGRect)frame andMaxTouchDownNum:(int)countDownNum_ andTimeInterval:(int)limit_ andClickedAction:(DynamicBtnBlock)block{    if (self = [super initWithFrame:frame]) {                maxCountDownNum = countDownNum_;        timeInterval = limit_;                self.dynamicBtnBlock = block;                UIImage *bimage = [UIImage imageNamed:@"btn.png"];        [self setBackgroundImage: bimage forState:UIControlStateNormal];        [self setBackgroundImage: bimage forState:UIControlStateDisabled];                [self setTitle:@"获取动态密码" forState:UIControlStateNormal];        [self setTitle:@"获取中..." forState:UIControlStateDisabled];        self.titleLabel.font = [UIFont systemFontOfSize: 12];                [self setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];        [self setTitleColor:[UIColor whiteColor] forState:UIControlStateDisabled];        self.enabled = YES;                [self addTarget:self action:@selector(dynamicPasswordButtonAction:) forControlEvents:UIControlEventTouchUpInside];                        //记录点击的次数        countDownNum = 0;        //记录秒数        limmit = 0;            }    return self;}- (void) dynamicPasswordButtonAction:(UIButton *)btn{    [self setTitle:@"重新发送" forState:UIControlStateNormal];    self.enabled = NO;        countDownNum += 1;        self.dynamicBtnBlock(countDownNum);        if(!self.timer_){        NSTimeInterval timeInterval2 = 1.0;        NSTimer *timer = [NSTimer scheduledTimerWithTimeInterval:timeInterval2 target:self selector:@selector(timerAction:) userInfo:self repeats:YES];        self.timer_ = timer;    }else{        //开启定时器        [self.timer_ setFireDate:[NSDate distantPast]];    }    }- (void) timerAction:(id)sender{    //-1因为1秒后才开的定时器    if (timeInterval-1-1 >= limmit  ) {        NSLog(@"%ld秒后可以继续操作",timeInterval-(long)limmit  -1) ;                limmit+=1;    }else{        limmit = 0;        NSLog(@"可以点了");        // 计时器可以停了        if (timer_) {            //关闭定时器            [timer_ setFireDate:[NSDate distantFuture]];           }        if (countDownNum >= maxCountDownNum) {            UIImage *bimage = [UIImage imageNamed:@"pagebuttondisable.png"];            [self setBackgroundImage:bimage forState:UIControlStateDisabled];            [self setTitle:@"" forState:UIControlStateDisabled];            return;        }                        self.enabled = YES;            }    }-(void)dealloc{    NSLog(@" PublicDynamicPasswordButton dealloc");//    [timer_ release];//    [super dealloc];}@end

调用方法

    //    //1.封装动态密码按钮    //参数说明：MaxTouchDownNum：最多能点击的次数  TimeInterval：多少秒后才可以点 ClickedAction：点击按钮的响应事件    //    BlockDynamicPasswordButton *_dynamicButton = [[BlockDynamicPasswordButton alloc]initWithFrame:CGRectMake(80, 80, 80, 30) andMaxTouchDownNum:15 andTimeInterval:10 andClickedAction:^(int touchUpNum) {        NSLog(@"提交页面获取到的点击次数%d",touchUpNum);    }];    _dynamicButton.backgroundColor = [UIColor blackColor];    [self.view addSubview:_dynamicButton];    _dynamicButton.centerX = SCREEN_WIDTH_NEW/2;

2：选取器（UIPickerView）的Block封装

//////  BlockPickerView.h////  Created by yfc on 16/8/26.////#import <UIKit/UIKit.h>typedef void(^PickerBlock)(id result);@interface BlockPickerView : UIView<UIPickerViewDataSource, UIPickerViewDelegate>{    NSArray                                 *pickerArray;}@property(nonatomic,copy)UIView             *backGroundview;@property(nonatomic,copy)PickerBlock        pickerBlock;@property(nonatomic,retain)UIPickerView     *pickerView;- (instancetype)initWithFrame:(CGRect)frame doneAction:(PickerBlock)block;- (void)show;- (void)setDataSource:(NSDictionary *)dic;@end

//////  BlockPickerView.m////  Created by yfc on 16/8/26.////#import "BlockPickerView.h"#import "config.h"@implementation BlockPickerView-(instancetype)initWithFrame:(CGRect)frame doneAction:(PickerBlock)block{    if (self = [super initWithFrame:frame]) {        //        //确定取消按钮下面的白条+紫条        //        UIImageView *purpleLineView = [[UIImageView alloc] initWithFrame:CGRectMake(0,0, SCREEN_WIDTH_NEW, 45)];        purpleLineView.backgroundColor = [UIColor redColor];        purpleLineView.userInteractionEnabled = YES;        //        //取消        //        UIButton *cancelButton = [UIButton buttonWithType:UIButtonTypeCustom];        [cancelButton  setTitle:@"取消" forState:UIControlStateNormal];        [cancelButton addTarget:self action:@selector(cancelAction:) forControlEvents:UIControlEventTouchUpInside];        cancelButton.frame = CGRectMake(10, 5, 63, 32);        //        //确定        //        UIButton *rightButton = [UIButton buttonWithType:UIButtonTypeCustom];        rightButton.frame = CGRectMake(250, 6, 63, 34);        rightButton.right = SCREEN_WIDTH_NEW - 10;        [rightButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];        [rightButton addTarget:self action:@selector(doneAction:) forControlEvents:UIControlEventTouchUpInside];        [rightButton setTitle:@"确定" forState:UIControlStateNormal];                [purpleLineView addSubview:cancelButton];        [purpleLineView addSubview:rightButton];        //        //选取框        //        _pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(0, 45, SCREEN_WIDTH_NEW, 180)];        _pickerView.delegate = self;        _pickerView.dataSource = self;        _pickerView.backgroundColor = [UIColor whiteColor];        //是否展示中间的选中状态        _pickerView.showsSelectionIndicator = YES;        [self addSubview:purpleLineView];        [self addSubview:_pickerView];                        self.pickerBlock = block;    }    return self;}//确定按钮- (void)doneAction:(id)sender{    NSInteger row = [_pickerView selectedRowInComponent:0];    self.pickerBlock(pickerArray[row]);    [self cancelAction:nil];}//取消按钮- (void)cancelAction:(UIButton *)sender{    [UIView animateWithDuration:0.5 animations:^{        CGRect rect = self.frame;        rect.origin.y  = SCREEN_HEIGHT_NEW;        self.frame = rect;    } completion:^(BOOL finished) {        [self.backGroundview removeFromSuperview];        //        //这行如果不写，此控件将不会被释放.如果不写延迟，则没有下收的效果        //        [self removeFromSuperview];    }];    }- (void)show;{    kWeakObject(self);        if (!_backGroundview) {        _backGroundview = [[UIView alloc]initWithFrame:APPLICATION.window.bounds];        _backGroundview.backgroundColor = [UIColor blackColor];        _backGroundview.alpha = 0.5;        [_backGroundview setTapActionWithBlock:^{            [weakObject cancelAction:nil];        }];    }    _backGroundview.userInteractionEnabled = NO;    [APPLICATION.window addSubview:_backGroundview];            [APPLICATION.window addSubview:self];            [UIView animateWithDuration:0.5 animations:^{        CGRect rect = self.frame;        rect.origin.y  = SCREEN_HEIGHT_NEW - self.frame.size.height;        self.frame = rect;    } completion:^(BOOL finished) {        _backGroundview.userInteractionEnabled = YES;            }];}- (void)setDataSource:(NSDictionary *)dic;{    if(((NSArray*)[dic objectForKey:@"array"]).count > 0){        NSLog(@"不是空数组");        pickerArray = [[NSArray alloc]initWithArray:[dic objectForKey:@"array"]];            }else{        NSLog(@"是空数组");            }    [_pickerView reloadAllComponents];}-(void)dealloc{    NSLog(@"PublicPickerView dealloc");//    [pickerArray release];//    [_backGroundview release];//    [_pickerView release];//    [super dealloc];}#pragma mark - pickerdelegate- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView{    return 1;}- (NSInteger) pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component{    return pickerArray.count;}//- (NSString*) pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component{//    //这个不居中//    return [pickerArray[row] objectForKey:@"valueForShow"];//}- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row          forComponent:(NSInteger)component reusingView:(UIView *)view{    UIView *viewToUse = nil;    if (component == 0)    {        NSString *text = [pickerArray[row] objectForKey:@"valueForShow"];        UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0.0, 0.0, 260.0, 40.0)];        label.backgroundColor = [UIColor clearColor];        label.textAlignment = NSTextAlignmentCenter;        label.text = text;        label.font = [UIFont boldSystemFontOfSize:18.0];                        return label;    }    return viewToUse;}@end

调用方法

- (void)pickerButtonAction:(UIButton *)btn{    //    //说明：数据源是一个字典 key是@"array" ，value是一个数组，数组里是多个字典（必须有一个key是@"valueForShow"，用作展示）    //    if (!pickerView) {        pickerView = [[BlockPickerView alloc]initWithFrame:CGRectMake(0,SCREEN_HEIGHT_NEW,SCREEN_WIDTH_NEW,225) doneAction:^(id result) {            NSLog(@"选中的是%@",result);        }];        NSDictionary *dicc = @{@"array":@[@{@"valueForShow":@"111"},                                          @{@"valueForShow":@"222"}]};        [pickerView setDataSource:dicc];    }    [pickerView show];}

3：日期选取器（UIDatePicker）的Block封装

////   //   BlockDatePickerView.h////  Created by yfc on 16/8/27.////#import <UIKit/UIKit.h>typedef void(^DatePickerBlock)(id result);@interface BlockDatePickerView : UIView{    UIView          *backGroundview;    UIDatePicker    *datePicker_;}@property(nonatomic,copy)DatePickerBlock datePickerBlock;- (void)show;- (void)setDoneAction:(DatePickerBlock)block;@end

//////   BlockDatePickerView.m////  Created by yfc on 16/8/27.////#import "BlockDatePickerView.h"#import "config.h"@implementation BlockDatePickerView- (id)initWithFrame:(CGRect)frame {    //    frame.origin.y = [GlobalVariables sharedGlobalVariables].Screen_Height;        if(self = [super initWithFrame:frame]){                self.userInteractionEnabled = YES;        self.backgroundColor = [UIColor whiteColor];                datePicker_ = [[UIDatePicker alloc] initWithFrame:CGRectMake(0.0, 40.0, SCREEN_WIDTH_NEW, 180)];        datePicker_.datePickerMode = UIDatePickerModeDate;        datePicker_.timeZone = [NSTimeZone systemTimeZone];        [self addSubview:datePicker_];                UIImageView *bar = [[UIImageView alloc] initWithFrame:CGRectMake(0.0, 0.0, SCREEN_WIDTH_NEW, 45.0)];        bar.backgroundColor = [UIColor redColor];        [self addSubview:bar];//        [bar release];                UIButton *confirmButton = [UIButton buttonWithType:UIButtonTypeCustom];        [confirmButton setTitle:@"确定" forState:UIControlStateNormal];                [confirmButton addTarget:self action:@selector(doneAction:) forControlEvents:UIControlEventTouchUpInside];        confirmButton.frame = CGRectMake(251, 6, 63, 34);        confirmButton.right = SCREEN_WIDTH_NEW - 10;        [self addSubview:confirmButton];//        [confirmButton release];                UIButton *cancelButton = [UIButton buttonWithType:UIButtonTypeCustom];        [cancelButton  setTitle:@"取消" forState:UIControlStateNormal];        [cancelButton addTarget:self action:@selector(cancelAction:) forControlEvents:UIControlEventTouchUpInside];        cancelButton.frame = CGRectMake(10, 6, 63, 34);        [self addSubview:cancelButton];//        [cancelButton release];    }    return self;}//确定按钮- (void)doneAction:(id)sender{//    NSString *dateString = [NSString stringWithFormat:@"%@",datePicker_.date];//    dateString = [dateString substringToIndex:10];//    //    self.datePickerBlock(dateString);//    [self cancelAction:nil];                    //20161108 生活 3 testin    NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];    NSInteger unitFlags = NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit|NSWeekdayCalendarUnit;        NSDateComponents *comps = [calendar components:unitFlags fromDate:datePicker_.date];    NSInteger iYear    = [comps year];    NSInteger imonth   = [comps month];    NSInteger iDay     = [comps day];    NSString *dateString = [NSString stringWithFormat:@"%4ld-%02ld-%02ld",(long)iYear,(long)imonth,(long)iDay];    self.datePickerBlock(dateString);    [self cancelAction:nil];}//取消按钮- (void)cancelAction:(UIButton *)sender{    [backGroundview removeFromSuperview];        [UIView beginAnimations:nil context:nil];    [UIView setAnimationDuration:0.5];        CGRect rect = self.frame;    rect.origin.y  = SCREEN_HEIGHT_NEW;    self.frame = rect;        [UIView commitAnimations];}- (void)show{    kWeakObject(self);        if (!backGroundview) {        backGroundview = [[UIView alloc]initWithFrame:APPLICATION.window.bounds];        backGroundview.backgroundColor = [UIColor blackColor];        backGroundview.alpha = 0.5;        [backGroundview setTapActionWithBlock:^{            [weakObject cancelAction:nil];        }];    }        [APPLICATION.window addSubview:backGroundview];        [APPLICATION.window addSubview:self];        [UIView beginAnimations:nil context:nil];    [UIView setAnimationDuration:0.4];        CGRect rect = self.frame;    rect.origin.y  = SCREEN_HEIGHT_NEW - self.height;    self.frame = rect;        [UIView commitAnimations];}- (void)setDoneAction:(DatePickerBlock)block;{    self.datePickerBlock = block;}-(void)dealloc{    NSLog(@"PublicDatePickerView  dealloc");//    [backGroundview release];//    [datePicker_ release];//    [super dealloc];}@end

调用方法

- (void)dateTextFiledAction:(UIButton *)btn{    if (!datePickerView) {        datePickerView = [[BlockDatePickerView alloc]initWithFrame:CGRectMake(0,APPLICATION.window.height,SCREEN_WIDTH_NEW,225)];                [datePickerView setDoneAction:^(id result) {            NSLog(@"选中的是%@",result);        }];    }    [datePickerView show];}

示例demo下载地址：https://pan.baidu.com/s/1nuPHDyx

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