205 lines
8.0 KiB
Mathematica
205 lines
8.0 KiB
Mathematica
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// SessionUtilOC.m
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// LegendTeam
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//
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// Created by 梁博 on 20/12/21.
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//
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#import "SessionUtilOC.h"
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@implementation SessionUtilOC
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+ (BOOL)shouldReloadWhenInsert:(NSArray<NSIndexPath *> *)indexPaths tableView:(UITableView *)tableView {
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// 如果插入数据后，中间有空档，则不能直接插入，需要全量重新加载
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NSMutableDictionary * sectionCurrentCount = [NSMutableDictionary dictionary];
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NSMutableDictionary * sectionMaxCount = [NSMutableDictionary dictionary];
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NSMutableDictionary * sectionInsertingCount = [NSMutableDictionary dictionary];
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for(NSIndexPath * indexPath in indexPaths)
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{
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NSInteger section = indexPath.section;
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NSInteger count = [tableView numberOfRowsInSection:section];
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sectionCurrentCount[@(section)] = @(count);
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}
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for(NSIndexPath * indexPath in indexPaths)
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{
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NSInteger section = indexPath.section;
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NSInteger row = indexPath.row;
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NSInteger count = [sectionCurrentCount[@(section)] integerValue];
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NSInteger sectionMaxNum = [sectionMaxCount[@(section)] integerValue];
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NSInteger max = 0;
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if (row <= count)
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{
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sectionCurrentCount[@(section)] = @(count+1);
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max = count + 1;
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}
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else
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{
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max = row + 1;
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}
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max = MAX(max, sectionMaxNum);
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sectionMaxCount[@(section)] = @(max);
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NSInteger sectionCurrentCount = [sectionInsertingCount[@(section)] integerValue];
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sectionInsertingCount[@(section)] = @(++ sectionCurrentCount);
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}
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for(NSNumber * sectionKey in sectionMaxCount.allKeys)
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{
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NSInteger maxCount = [sectionMaxCount[sectionKey] integerValue];
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NSInteger currentCount = [sectionInsertingCount[sectionKey] integerValue];
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NSInteger section = [sectionKey integerValue];
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NSInteger count = [tableView numberOfRowsInSection:section];
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if (maxCount > count + currentCount)
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{
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return YES;
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}
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}
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return NO;
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}
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+ (NSArray<NSIndexPath *> *)getIndexPathsWith:(NSArray <NSNumber *>*)indexs {
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NSMutableArray *addIndexPathes = [NSMutableArray array];
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[indexs enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
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NSIndexPath *indexPath = [NSIndexPath indexPathForRow:[obj integerValue] inSection:0];
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[addIndexPathes addObject:indexPath];
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}];
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return [addIndexPathes copy];
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}
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+ (CGSize)sizeWithImageOriginSize:(CGSize)originSize
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minSize:(CGSize)imageMinSize
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maxSize:(CGSize)imageMaxSiz{
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NSInteger imageWidth = originSize.width ,imageHeight = originSize.height;
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imageWidth = imageWidth == 0 ? 1 : imageWidth;
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imageHeight = imageHeight == 0 ? 1 : imageHeight;
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NSInteger imageMinWidth = imageMinSize.width, imageMinHeight = imageMinSize.height;
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NSInteger imageMaxWidth = imageMaxSiz.width, imageMaxHeight = imageMaxSiz.height;
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CGFloat newWidth = imageWidth;
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CGFloat newHeight = imageHeight;
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if (imageWidth > imageHeight) //宽图
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{
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if (imageWidth > imageMaxWidth) {
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// 宽度大于最大宽度时, 取最大宽度 100 * 50 60
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newWidth = imageMaxWidth;
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// 根据宽度比例获取高度
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newHeight = imageHeight * imageMaxWidth / imageWidth;
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} else if (imageWidth < imageMinWidth) {
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// 宽度小于于最小宽度时, 取最小宽度 20 * 10 30
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newWidth = imageMinWidth;
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// 根据宽度比例获取高度
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newHeight = imageHeight * imageMinWidth / imageWidth;
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}
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}
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else if(imageWidth < imageHeight)//高图
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{
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if (imageHeight > imageMaxHeight) {
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// 高度大于最大高度时, 取最大高度 50 * 100 60
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newHeight = imageMaxHeight;
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newWidth = imageWidth * imageMaxHeight / imageHeight;
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} else if (imageHeight < imageMinHeight) {
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// 高度小于最小高度时, 取最大高度 10 * 20 30
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newHeight = imageMinHeight;
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newWidth = imageWidth * imageMinHeight / imageHeight;
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}
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}
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// 控制宽度最大最小显示逻辑
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if (newWidth > imageMaxWidth) {
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newWidth = imageMaxWidth;
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}
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if (newWidth < imageMinWidth) {
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newWidth = imageMinWidth;
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}
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// 控制高度最大最小显示逻辑
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if (newHeight > imageMaxHeight) {
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newHeight = imageMaxHeight;
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}
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if (newHeight < imageMinHeight) {
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newHeight = imageMinHeight;
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}
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return CGSizeMake(newWidth, newHeight);
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}
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+ (NSString*)showTime:(NSTimeInterval)msglastTime showDetail:(BOOL)showDetail {
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//今天的时间
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NSDate *nowDate = [NSDate date];
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NSDate *msgDate = [NSDate dateWithTimeIntervalSince1970:msglastTime];
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NSTimeInterval nowTimeInterval = [nowDate timeIntervalSince1970];
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NSString *result = nil;
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NSCalendarUnit components = (NSCalendarUnit)(NSCalendarUnitYear|NSCalendarUnitMonth|NSCalendarUnitDay|NSCalendarUnitWeekday|NSCalendarUnitHour | NSCalendarUnitMinute);
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NSDateComponents *nowDateComponents = [[NSCalendar currentCalendar] components:components fromDate:nowDate];
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NSDateComponents *msgDateComponents = [[NSCalendar currentCalendar] components:components fromDate:msgDate];
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double OnedayTimeIntervalValue = 24*60*60; //一天的秒数
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// NSInteger hour = msgDateComponents.hour;
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// if (hour > 12)
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// {
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// hour = hour - 12;
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// }
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BOOL isSameYer = nowDateComponents.year == msgDateComponents.year;
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BOOL isSameMonth = isSameYer && (nowDateComponents.month == msgDateComponents.month);
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BOOL isSameDay = isSameYer && isSameMonth && (nowDateComponents.day == msgDateComponents.day);
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// 如果要求强制显示AM、需要通过日历控件自己计算
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NSInteger reduceInterval = nowTimeInterval - msglastTime;
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if (showDetail) {
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if (reduceInterval < OnedayTimeIntervalValue) {
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// 24小时内 显示 XX以前
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result =[NSString stringWithFormat:@"%@", [self stringFromDate:msgDate format:@"h:mm aa"]];
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} else if (isSameMonth && (nowDateComponents.day == (msgDateComponents.day + 1))) {
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// 昨天
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result =[NSString stringWithFormat:@"Yesterday %@", [self stringFromDate:msgDate format:@"h:mm aa"]];
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} else if (isSameYer) {
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// 当年内
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result =[NSString stringWithFormat:@"%@", [self stringFromDate:msgDate format:@"MMM d, h:mm aa"]];
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} else {
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result =[NSString stringWithFormat:@"%@", [self stringFromDate:msgDate format:@"MMM d, yyyy h:mm aa"]];
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}
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} else {
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if (isSameDay) {
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// 今天
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result =[NSString stringWithFormat:@"%@", [self stringFromDate:msgDate format:@"h:mm aa"]];
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} else if (isSameMonth && (nowDateComponents.day == (msgDateComponents.day + 1))) {
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// 昨天
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result =[NSString stringWithFormat:@"Yesterday"];
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} else if (isSameYer) {
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// 当年内
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result =[NSString stringWithFormat:@"%@", [self stringFromDate:msgDate format:@"MMM d"]];
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} else {
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result =[NSString stringWithFormat:@"%@", [self stringFromDate:msgDate format:@"MMM d, yyyy"]];
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}
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}
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NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
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[formatter setDateFormat:@"hh:mm aa"];
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NSDate *tempDate = [formatter dateFromString:@"16:20"];
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// 24小时制，需要处理一下显示
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if (tempDate && ([result containsString:@"AM"] || [result containsString:@"PM"])) {
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NSString *string1 = [result stringByReplacingOccurrencesOfString:@"AM" withString:@""];
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NSString *string2 = [string1 stringByReplacingOccurrencesOfString:@"PM" withString:@""];
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result = string2;
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}
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return result;
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}
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+ (NSString *)stringFromDate:(NSDate *)date format:(NSString *)format {
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NSDateFormatter *fomatter = [[NSDateFormatter alloc] init];
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[fomatter setTimeZone:[NSTimeZone localTimeZone]];
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[fomatter setDateFormat:format];
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return [fomatter stringFromDate:date];
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}
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@end
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