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https://github.com/mineschan/MZTimerLabel

A handy class for iOS to use UILabel as a countdown timer or stopwatch just like in Apple Clock App.
https://github.com/mineschan/MZTimerLabel

Last synced: 7 days ago
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A handy class for iOS to use UILabel as a countdown timer or stopwatch just like in Apple Clock App.

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MZTimerLabel
============

![License](https://cocoapod-badges.herokuapp.com/l/MZTimerLabel/badge.(png|svg))
![Platforms](https://cocoapod-badges.herokuapp.com/p/MZTimerLabel/badge.png)
[![Cocoapod Latest Version](http://img.shields.io/cocoapods/v/MZTimerLabel.svg?style=flat)](https://cocoapods.org/?q=MZTimerLabel)
[![Carthage compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/Carthage/Carthage)
[![Downloads with CocoaPods](https://img.shields.io/cocoapods/dt/MZTimerLabel.svg)](https://cocoapods.org/pods/MZTimerLabel)

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### Purpose

MZTimerLabel is a UILabel subclass, which is a handy way to use UILabel as a countdown timer or stopwatch just like that in Apple Clock App with just __2 lines of code__. MZTimerLabel also provides delegate method for you to define the action when the timer finished.

Author: [MineS Chan](https://github.com/mineschan/) and awesome [contributors](https://github.com/mineschan/MZTimerLabel/graphs/contributors).

_Remark: This is my first iOS plugin project on github, please accept my apologize if any bad coding._

### Requirements
* ARC
* iOS 5.0+

### Installations

#### Manual

1. Download or clone MZTimerLabel, add `MZTimerLabel.h` and `MZTimerLabel.m` source files into your project.
2. `#import "MZTimerLabel.h"` whereever you need it.

#### CocoaPods

(Unfamiliar with [CocoaPods](http://cocoapods.org/) yet? It's a dependency management tool for iOS and Mac, check it out!)

```
pod 'MZTimerLabel'
```

#### Carthage
Another dependency manager is [Carthage](http://github.com/Carthage/Carthage), which does not have a centralized repository.

```
github "mineschan/MZTimerLabel"
```

### Easy Example

To use MZTimerLabel as a stopwatch and counter, you need only __2 lines__.
```objective-c
MZTimerLabel *stopwatch = [[MZTimerLabel alloc] initWithLabel:aUILabel];
[stopwatch start];
```

Easy? If you are looking for a timer, things is just similar.
```objective-c
MZTimerLabel *timer = [[MZTimerLabel alloc] initWithLabel:aUILabel andTimerType:MZTimerLabelTypeTimer];
[timer setCountDownTime:60];
[timer start];
```

Now the timer will start counting from 60 to 0 ;)

### Custom Appearance

As MZTimerLabel is a UILabel subclass, you can directly allocate it as a normal UILabel and customize `timeLabel` property just like usual.

```objective-c
MZTimerLabel *redStopwatch = [[MZTimerLabel alloc] init];
redStopwatch.frame = CGRectMake(100,50,100,20);
redStopwatch.timeLabel.font = [UIFont systemFontOfSize:20.0f];
redStopwatch.timeLabel.textColor = [UIColor redColor];
[self.view addSubview:redStopwatch];
[redStopwatch start];
```

MZTimerLabel uses `00:00:00 (HH:mm:ss)` as time format, if you prefer using another format such as including milliseconds.Your can set your time format like below.

`timerExample4.timeFormat = @"HH:mm:ss SS";`



### Control the timer

You can start,pause,reset your timer with your custom control, set your control up and call these methods:

```
-(void)start;
-(void)pause;
-(void)reset;
```

#### Getter and Setters

You may control the time value and behaviours at the begining or during runtime with these properties and methods

```
@property (assign) BOOL shouldCountBeyondHHLimit; //see example #12
@property (assign) BOOL resetTimerAfterFinish; //see example #7

-(void)setCountDownTime:(NSTimeInterval)time;
-(void)setStopWatchTime:(NSTimeInterval)time;
-(void)setCountDownToDate:(NSDate*)date;
-(void)addTimeCountedByTime:(NSTimeInterval)timeToAdd; //see example #10, #11
```

And if you want to have information of the timer, here is how.

```
@property (assign,readonly) BOOL counting; //see example #4-7

- (NSTimeInterval)getTimeCounted; //see example #3
- (NSTimeInterval)getTimeRemaining; //see example #3
- (NSTimeInterval)getCountDownTime;
```

### Timer Finish Handling

Usually when you need a timer, you need to deal with it after it finished. Following are 2 examples showing how to do it using `delegate` and `block` methods.

#### Delegate

First, set the delegate of the timer label.

`timer.delegate = self;`

And then implement `MZTimerLabelDelegate` protocol in your dedicated class

`@interface ViewController : UIViewController`

Finally, implement the delegate method `timerLabel:finshedCountDownTimerWithTimeWithTime:`

```objective-c
-(void)timerLabel:(MZTimerLabel*)timerLabel finshedCountDownTimerWithTime:(NSTimeInterval)countTime{
//time is up, what should I do master?
}
```

#### Blocks

Block is a very convenient way to handle the callbacks, MZTimerLabel makes your life even easier.

```objective-c

MZTimerLabel *timer = [[MZTimerLabel alloc] initWithLabel:aUILabel andTimerType:MZTimerLabelTypeTimer];
[timer3 setCountDownTime:60];
[timer startWithEndingBlock:^(NSTimeInterval countTime) {
//oh my gosh, it's awesome!!
}];

```

Or set it seperately

```
[timer3 setCountDownTime:60];
timer.endedBlock = ^(NSTimeInterval countTime) {
//oh my gosh, it's awesome!!
};
[timer start];
```


### More Examples

Please check the demo project I provided, with well explained example code inside.

### License
This code is distributed under the terms and conditions of the [MIT license](LICENSE).

### What's coming up next?

1. ~~Submit to CocaPods~~
2. ~~Better performance.~~
3. __Your suggestions!:D__