From 549106e931962c9d2fc183997e576f07f39750f4 Mon Sep 17 00:00:00 2001
From: Coderzhangsl <zhangsl@zhangsldeMac-mini.local>
Date: Thu, 2 Jun 2016 10:38:50 +0800
Subject: [PATCH 1/2] =?UTF-8?q?retain=20circle=20=E5=AF=BC=E8=87=B4timerLa?=
 =?UTF-8?q?bel=E4=B8=8D=E8=83=BD=E9=87=8A=E6=94=BE?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

1
- (UILabel*)timeLabel
{
    if (_timeLabel == nil) {
        _timeLabel = self;
    }
    return _timeLabel;
}

如果_timeLabel = self，由于self.timerLabel是strong，会形成retainCircle

2 timer 和self 也会形成retain
circle，需要在不使用timer时调用一下cleanTimerLabel，比如在一个ViewController的dealloc中调用cle
anTimerLabel
---
 MZTimerLabel/MZTimerLabel.h | 3 ++-
 MZTimerLabel/MZTimerLabel.m | 9 ++++++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/MZTimerLabel/MZTimerLabel.h b/MZTimerLabel/MZTimerLabel.h
index 5895aec..0a3c8f8 100644
--- a/MZTimerLabel/MZTimerLabel.h
+++ b/MZTimerLabel/MZTimerLabel.h
@@ -72,7 +72,7 @@ typedef enum{
 @property (nonatomic,copy) NSString *timeFormat;
 
 /*Target label obejct, default self if you do not initWithLabel nor set*/
-@property (nonatomic,strong) UILabel *timeLabel;
+@property (nonatomic,weak) UILabel *timeLabel;
 
 /*Used for replace text in range */
 @property (nonatomic, assign) NSRange textRange;
@@ -110,6 +110,7 @@ typedef enum{
 #endif
 -(void)pause;
 -(void)reset;
+- (void)cleanTimerLabel;
 
 /*--------Setter methods*/
 -(void)setCountDownTime:(NSTimeInterval)time;
diff --git a/MZTimerLabel/MZTimerLabel.m b/MZTimerLabel/MZTimerLabel.m
index ee33133..670d8b7 100644
--- a/MZTimerLabel/MZTimerLabel.m
+++ b/MZTimerLabel/MZTimerLabel.m
@@ -101,7 +101,14 @@ - (id)initWithCoder:(NSCoder *)aDecoder
 
 #pragma mark - Cleanup
 
-- (void) removeFromSuperview {
+- (void)cleanTimerLabel {
+    if (_timer) {
+        [_timer invalidate];
+        _timer = nil;
+    }
+}
+
+- (void)removeFromSuperview {
     if (_timer) {
         [_timer invalidate];
         _timer = nil;

From a3fc15345c85071ea22b9d115501de99b0136ec3 Mon Sep 17 00:00:00 2001
From: Coderzhangsl <zhangsl@zhangsldeMac-mini.local>
Date: Thu, 2 Jun 2016 15:31:48 +0800
Subject: [PATCH 2/2] =?UTF-8?q?=E5=80=92=E8=AE=A1=E6=97=B6=E4=BC=9A?=
 =?UTF-8?q?=E5=B0=91=E4=B8=80=E7=A7=92?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

倒计时会少一秒
---
 MZTimerLabel/MZTimerLabel.m | 1 +
 1 file changed, 1 insertion(+)

diff --git a/MZTimerLabel/MZTimerLabel.m b/MZTimerLabel/MZTimerLabel.m
index 670d8b7..ea01b11 100644
--- a/MZTimerLabel/MZTimerLabel.m
+++ b/MZTimerLabel/MZTimerLabel.m
@@ -133,6 +133,7 @@ - (void)setCountDownTime:(NSTimeInterval)time{
     
     timeUserValue = (time < 0)? 0 : time;
     timeToCountOff = [date1970 dateByAddingTimeInterval:timeUserValue];
+    timeToCountOff = [timeToCountOff dateByAddingTimeInterval:0.99];
     [self updateLabel];
 }