//
|
// MJRefreshStateHeader.m
|
// MJRefreshExample
|
//
|
// Created by MJ Lee on 15/4/24.
|
// Copyright (c) 2015年 小码哥. All rights reserved.
|
//
|
|
#import "MJRefreshStateHeader.h"
|
|
@interface MJRefreshStateHeader()
|
{
|
/** 显示上一次刷新时间的label */
|
__unsafe_unretained UILabel *_lastUpdatedTimeLabel;
|
/** 显示刷新状态的label */
|
__unsafe_unretained UILabel *_stateLabel;
|
}
|
/** 所有状态对应的文字 */
|
@property (strong, nonatomic) NSMutableDictionary *stateTitles;
|
@end
|
|
@implementation MJRefreshStateHeader
|
#pragma mark - 懒加载
|
- (NSMutableDictionary *)stateTitles
|
{
|
if (!_stateTitles) {
|
self.stateTitles = [NSMutableDictionary dictionary];
|
}
|
return _stateTitles;
|
}
|
|
- (UILabel *)stateLabel
|
{
|
if (!_stateLabel) {
|
[self addSubview:_stateLabel = [UILabel mj_label]];
|
}
|
return _stateLabel;
|
}
|
|
- (UILabel *)lastUpdatedTimeLabel
|
{
|
if (!_lastUpdatedTimeLabel) {
|
[self addSubview:_lastUpdatedTimeLabel = [UILabel mj_label]];
|
}
|
return _lastUpdatedTimeLabel;
|
}
|
|
#pragma mark - 公共方法
|
- (void)setTitle:(NSString *)title forState:(MJRefreshState)state
|
{
|
if (title == nil) return;
|
self.stateTitles[@(state)] = title;
|
self.stateLabel.text = self.stateTitles[@(self.state)];
|
}
|
|
#pragma mark - 日历获取在9.x之后的系统使用currentCalendar会出异常。在8.0之后使用系统新API。
|
- (NSCalendar *)currentCalendar {
|
if ([NSCalendar respondsToSelector:@selector(calendarWithIdentifier:)]) {
|
return [NSCalendar calendarWithIdentifier:NSCalendarIdentifierGregorian];
|
}
|
return [NSCalendar currentCalendar];
|
}
|
|
#pragma mark key的处理
|
- (void)setLastUpdatedTimeKey:(NSString *)lastUpdatedTimeKey
|
{
|
[super setLastUpdatedTimeKey:lastUpdatedTimeKey];
|
|
// 如果label隐藏了，就不用再处理
|
if (self.lastUpdatedTimeLabel.hidden) return;
|
|
NSDate *lastUpdatedTime = [[NSUserDefaults standardUserDefaults] objectForKey:lastUpdatedTimeKey];
|
|
// 如果有block
|
if (self.lastUpdatedTimeText) {
|
self.lastUpdatedTimeLabel.text = self.lastUpdatedTimeText(lastUpdatedTime);
|
return;
|
}
|
|
if (lastUpdatedTime) {
|
// 1.获得年月日
|
NSCalendar *calendar = [self currentCalendar];
|
NSUInteger unitFlags = NSCalendarUnitYear| NSCalendarUnitMonth | NSCalendarUnitDay |NSCalendarUnitHour |NSCalendarUnitMinute;
|
NSDateComponents *cmp1 = [calendar components:unitFlags fromDate:lastUpdatedTime];
|
NSDateComponents *cmp2 = [calendar components:unitFlags fromDate:[NSDate date]];
|
|
// 2.格式化日期
|
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
|
BOOL isToday = NO;
|
if ([cmp1 day] == [cmp2 day]) { // 今天
|
formatter.dateFormat = @" HH:mm";
|
isToday = YES;
|
} else if ([cmp1 year] == [cmp2 year]) { // 今年
|
formatter.dateFormat = @"MM-dd HH:mm";
|
} else {
|
formatter.dateFormat = @"yyyy-MM-dd HH:mm";
|
}
|
NSString *time = [formatter stringFromDate:lastUpdatedTime];
|
|
// 3.显示日期
|
self.lastUpdatedTimeLabel.text = [NSString stringWithFormat:@"%@%@%@",
|
[NSBundle mj_localizedStringForKey:MJRefreshHeaderLastTimeText],
|
isToday ? [NSBundle mj_localizedStringForKey:MJRefreshHeaderDateTodayText] : @"",
|
time];
|
} else {
|
self.lastUpdatedTimeLabel.text = [NSString stringWithFormat:@"%@%@",
|
[NSBundle mj_localizedStringForKey:MJRefreshHeaderLastTimeText],
|
[NSBundle mj_localizedStringForKey:MJRefreshHeaderNoneLastDateText]];
|
}
|
}
|
|
#pragma mark - 覆盖父类的方法
|
- (void)prepare
|
{
|
[super prepare];
|
|
// 初始化间距
|
self.labelLeftInset = MJRefreshLabelLeftInset;
|
|
// 初始化文字
|
[self setTitle:[NSBundle mj_localizedStringForKey:MJRefreshHeaderIdleText] forState:MJRefreshStateIdle];
|
[self setTitle:[NSBundle mj_localizedStringForKey:MJRefreshHeaderPullingText] forState:MJRefreshStatePulling];
|
[self setTitle:[NSBundle mj_localizedStringForKey:MJRefreshHeaderRefreshingText] forState:MJRefreshStateRefreshing];
|
}
|
|
- (void)placeSubviews
|
{
|
[super placeSubviews];
|
|
if (self.stateLabel.hidden) return;
|
|
BOOL noConstrainsOnStatusLabel = self.stateLabel.constraints.count == 0;
|
|
if (self.lastUpdatedTimeLabel.hidden) {
|
// 状态
|
if (noConstrainsOnStatusLabel) self.stateLabel.frame = self.bounds;
|
} else {
|
CGFloat stateLabelH = self.mj_h * 0.5;
|
// 状态
|
if (noConstrainsOnStatusLabel) {
|
self.stateLabel.mj_x = 0;
|
self.stateLabel.mj_y = 0;
|
self.stateLabel.mj_w = self.mj_w;
|
self.stateLabel.mj_h = stateLabelH;
|
}
|
|
// 更新时间
|
if (self.lastUpdatedTimeLabel.constraints.count == 0) {
|
self.lastUpdatedTimeLabel.mj_x = 0;
|
self.lastUpdatedTimeLabel.mj_y = stateLabelH;
|
self.lastUpdatedTimeLabel.mj_w = self.mj_w;
|
self.lastUpdatedTimeLabel.mj_h = self.mj_h - self.lastUpdatedTimeLabel.mj_y;
|
}
|
}
|
}
|
|
- (void)setState:(MJRefreshState)state
|
{
|
MJRefreshCheckState
|
|
// 设置状态文字
|
self.stateLabel.text = self.stateTitles[@(state)];
|
|
// 重新设置key（重新显示时间）
|
self.lastUpdatedTimeKey = self.lastUpdatedTimeKey;
|
}
|
@end
|
