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2017-08-15 16:59:01 +08:00
commit bdc83e07ef
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+//
+//  NTESSessionUtil.m
+//  NIMDemo
+//
+//  Created by ght on 15-1-27.
+//  Copyright (c) 2015年 Netease. All rights reserved.
+//
+
+#import "NTESSessionUtil.h"
+#import "NTESLoginManager.h"
+#import "NTESSnapchatAttachment.h"
+#import "NTESJanKenPonAttachment.h"
+#import "NTESChartletAttachment.h"
+#import "UIImage+NTES.h"
+#import "NTESDataManager.h"
+#import "NTESSnapchatAttachment.h"
+#import "NTESWhiteboardAttachment.h"
+double OnedayTimeIntervalValue = 24*60*60;  //一天的秒数
+@implementation NTESSessionUtil
+
+ (CGSize)getImageSizeWithImageOriginSize:(CGSize)originSize
+                                  minSize:(CGSize)imageMinSize
+                                  maxSize:(CGSize)imageMaxSiz
+{
+    CGSize size;
+    NSInteger imageWidth = originSize.width ,imageHeight = originSize.height;
+    NSInteger imageMinWidth = imageMinSize.width, imageMinHeight = imageMinSize.height;
+    NSInteger imageMaxWidth = imageMaxSiz.width, imageMaxHeight = imageMaxSiz.height;
+    if (imageWidth > imageHeight) //宽图
+    {
+        size.height = imageMinHeight;  //高度取最小高度
+        size.width = imageWidth * imageMinHeight / imageHeight;
+        if (size.width > imageMaxWidth)
+        {
+            size.width = imageMaxWidth;
+        }
+    }
+    else if(imageWidth < imageHeight)//高图
+    {
+        size.width = imageMinWidth;
+        size.height = imageHeight *imageMinWidth / imageWidth;
+        if (size.height > imageMaxHeight)
+        {
+            size.height = imageMaxHeight;
+        }
+    }
+    else//方图
+    {
+        if (imageWidth > imageMaxWidth)
+        {
+            size.width = imageMaxWidth;
+            size.height = imageMaxHeight;
+        }
+        else if(imageWidth > imageMinWidth)
+        {
+            size.width = imageWidth;
+            size.height = imageHeight;
+        }
+        else
+        {
+            size.width = imageMinWidth;
+            size.height = imageMinHeight;
+        }
+    }
+    return size;
+}
+
+                                                 
+(BOOL)isTheSameDay:(NSTimeInterval)currentTime compareTime:(NSDateComponents*)older
+{
+    NSCalendarUnit currentComponents = (NSCalendarUnit)(NSCalendarUnitYear|NSCalendarUnitMonth|NSCalendarUnitDay|NSHourCalendarUnit | NSMinuteCalendarUnit);
+    NSDateComponents *current = [[NSCalendar currentCalendar] components:currentComponents fromDate:[NSDate dateWithTimeIntervalSinceNow:currentTime]];
+    
+    return current.year == older.year && current.month == older.month && current.day == older.day;
+}
+
+(NSString*)weekdayStr:(NSInteger)dayOfWeek
+{
+    static NSDictionary *daysOfWeekDict = nil;
+    daysOfWeekDict = @{@(1):@"星期日",
+                       @(2):@"星期一",
+                       @(3):@"星期二",
+                       @(4):@"星期三",
+                       @(5):@"星期四",
+                       @(6):@"星期五",
+                       @(7):@"星期六",};
+    return [daysOfWeekDict objectForKey:@(dayOfWeek)];
+}
+
+
+(NSDateComponents*)stringFromTimeInterval:(NSTimeInterval)messageTime components:(NSCalendarUnit)components
+{
+    NSDateComponents *dateComponents = [[NSCalendar currentCalendar] components:components fromDate:[NSDate dateWithTimeIntervalSince1970:messageTime]];
+    return dateComponents;
+}
+
+
+ (NSString *)showNick:(NSString*)uid inSession:(NIMSession*)session{
+    
+    NSString *nickname = nil;
+    if (session.sessionType == NIMSessionTypeTeam)
+    {
+        NIMTeamMember *member = [[NIMSDK sharedSDK].teamManager teamMember:uid inTeam:session.sessionId];
+        nickname = member.nickname;
+    }
+    if (!nickname.length) {
+        NIMKitInfo *info = [[NIMKit sharedKit] infoByUser:uid];
+        nickname = info.showName;
+    }
+    return nickname;
+}
+
+
+(NSString*)showTime:(NSTimeInterval) msglastTime showDetail:(BOOL)showDetail
+{
+    //今天的时间
+    NSDate * nowDate = [NSDate date];
+    NSDate * msgDate = [NSDate dateWithTimeIntervalSince1970:msglastTime];
+    NSString *result = nil;
+    NSCalendarUnit components = (NSCalendarUnit)(NSCalendarUnitYear|NSCalendarUnitMonth|NSCalendarUnitDay|NSCalendarUnitWeekday|NSHourCalendarUnit | NSMinuteCalendarUnit);
+    NSDateComponents *nowDateComponents = [[NSCalendar currentCalendar] components:components fromDate:nowDate];
+    NSDateComponents *msgDateComponents = [[NSCalendar currentCalendar] components:components fromDate:msgDate];
+
+    NSInteger hour = msgDateComponents.hour;
+    result = [NTESSessionUtil getPeriodOfTime:hour withMinute:msgDateComponents.minute];
+    if (hour > 12)
+    {
+        hour = hour - 12;
+    }
+    if(nowDateComponents.day == msgDateComponents.day) //同一天,显示时间
+    {
+        result = [[NSString alloc] initWithFormat:@"%@ %zd:%02d",result,hour,(int)msgDateComponents.minute];
+    }
+    else if(nowDateComponents.day == (msgDateComponents.day+1))//昨天
+    {
+        result = showDetail?  [[NSString alloc] initWithFormat:@"昨天%@ %zd:%02d",result,hour,(int)msgDateComponents.minute] : @"昨天";
+    }
+    else if(nowDateComponents.day == (msgDateComponents.day+2)) //前天
+    {
+        result = showDetail? [[NSString alloc] initWithFormat:@"前天%@ %zd:%02d",result,hour,(int)msgDateComponents.minute] : @"前天";
+    }
+    else if([nowDate timeIntervalSinceDate:msgDate] < 7 * OnedayTimeIntervalValue)//一周内
+    {
+        NSString *weekDay = [NTESSessionUtil weekdayStr:msgDateComponents.weekday];
+        result = showDetail? [weekDay stringByAppendingFormat:@"%@ %zd:%02d",result,hour,(int)msgDateComponents.minute] : weekDay;
+    }
+    else//显示日期
+    {
+        NSString *day = [NSString stringWithFormat:@"%zd-%zd-%zd", msgDateComponents.year, msgDateComponents.month, msgDateComponents.day];
+        result = showDetail? [day stringByAppendingFormat:@"%@ %zd:%02d",result,hour,(int)msgDateComponents.minute]:day;
+    }
+    return result;
+}
+
+ (NSString *)getPeriodOfTime:(NSInteger)time withMinute:(NSInteger)minute
+{
+    NSInteger totalMin = time *60 + minute;
+    NSString *showPeriodOfTime = @"";
+    if (totalMin > 0 && totalMin <= 5 * 60)
+    {
+        showPeriodOfTime = @"凌晨";
+    }
+    else if (totalMin > 5 * 60 && totalMin < 12 * 60)
+    {
+        showPeriodOfTime = @"上午";
+    }
+    else if (totalMin >= 12 * 60 && totalMin <= 18 * 60)
+    {
+        showPeriodOfTime = @"下午";
+    }
+    else if ((totalMin > 18 * 60 && totalMin <= (23 * 60 + 59)) || totalMin == 0)
+    {
+        showPeriodOfTime = @"晚上";
+    }
+    return showPeriodOfTime;
+}
+
+
+ (void)sessionWithInputURL:(NSURL*)inputURL
+                  outputURL:(NSURL*)outputURL
+               blockHandler:(void (^)(AVAssetExportSession*))handler
+{
+    AVURLAsset *asset = [AVURLAsset URLAssetWithURL:inputURL options:nil];
+    AVAssetExportSession *session = [[AVAssetExportSession alloc] initWithAsset:asset
+                                                                     presetName:AVAssetExportPresetMediumQuality];
+    session.outputURL = outputURL;
+    session.outputFileType = AVFileTypeMPEG4;   // 支持安卓某些机器的视频播放
+    session.shouldOptimizeForNetworkUse = YES;
+    [session exportAsynchronouslyWithCompletionHandler:^(void)
+     {
+         handler(session);
+     }];
+}
+
+
+ (NSDictionary *)dictByJsonData:(NSData *)data
+{
+    NSDictionary *dict = nil;
+    if ([data isKindOfClass:[NSData class]])
+    {
+        NSError *error = nil;
+        dict = [NSJSONSerialization JSONObjectWithData:data
+                                               options:0
+                                                 error:&error];
+        if (error) {
+            NSLog(@"dictByJsonData failed %@ error %@",data,error);
+        }
+    }
+    return [dict isKindOfClass:[NSDictionary class]] ? dict : nil;
+}
+
+
+ (NSDictionary *)dictByJsonString:(NSString *)jsonString
+{
+    if (!jsonString.length) {
+        return nil;
+    }
+    NSData *data = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
+    return [NTESSessionUtil dictByJsonData:data];
+}
+
+
+ (AVMutableVideoComposition *) getVideoComposition:(AVAsset *)asset
+{
+    AVAssetTrack *videoTrack = [[asset tracksWithMediaType:AVMediaTypeVideo] objectAtIndex:0];
+    AVMutableComposition *composition = [AVMutableComposition composition];
+    AVMutableVideoComposition *videoComposition = [AVMutableVideoComposition videoComposition];
+    CGSize videoSize = videoTrack.naturalSize;
+    BOOL isPortrait_ = [NTESSessionUtil isVideoPortrait:asset];
+    if(isPortrait_) {
+        videoSize = CGSizeMake(videoSize.height, videoSize.width);
+    }
+    composition.naturalSize     = videoSize;
+    videoComposition.renderSize = videoSize;
+    
+    videoComposition.frameDuration = CMTimeMakeWithSeconds( 1 / videoTrack.nominalFrameRate, 600);
+    AVMutableCompositionTrack *compositionVideoTrack;
+    compositionVideoTrack = [composition addMutableTrackWithMediaType:AVMediaTypeVideo preferredTrackID:kCMPersistentTrackID_Invalid];
+    [compositionVideoTrack insertTimeRange:CMTimeRangeMake(kCMTimeZero, asset.duration) ofTrack:videoTrack atTime:kCMTimeZero error:nil];
+    AVMutableVideoCompositionLayerInstruction *layerInst;
+    layerInst = [AVMutableVideoCompositionLayerInstruction videoCompositionLayerInstructionWithAssetTrack:videoTrack];
+    [layerInst setTransform:videoTrack.preferredTransform atTime:kCMTimeZero];
+    AVMutableVideoCompositionInstruction *inst = [AVMutableVideoCompositionInstruction videoCompositionInstruction];
+    inst.timeRange = CMTimeRangeMake(kCMTimeZero, asset.duration);
+    inst.layerInstructions = [NSArray arrayWithObject:layerInst];
+    videoComposition.instructions = [NSArray arrayWithObject:inst];
+    return videoComposition;
+}
+
+
+ (BOOL) isVideoPortrait:(AVAsset *)asset
+{
+    BOOL isPortrait = NO;
+    NSArray *tracks = [asset tracksWithMediaType:AVMediaTypeVideo];
+    if([tracks    count] > 0) {
+        AVAssetTrack *videoTrack = [tracks objectAtIndex:0];
+        
+        CGAffineTransform t = videoTrack.preferredTransform;
+        // Portrait
+        if(t.a == 0 && t.b == 1.0 && t.c == -1.0 && t.d == 0)
+        {
+            isPortrait = YES;
+        }
+        // PortraitUpsideDown
+        if(t.a == 0 && t.b == -1.0 && t.c == 1.0 && t.d == 0)  {
+            
+            isPortrait = YES;
+        }
+        // LandscapeRight
+        if(t.a == 1.0 && t.b == 0 && t.c == 0 && t.d == 1.0)
+        {
+            isPortrait = NO;
+        }
+        // LandscapeLeft
+        if(t.a == -1.0 && t.b == 0 && t.c == 0 && t.d == -1.0)
+        {
+            isPortrait = NO;
+        }
+    }
+    return isPortrait;
+}
+
+
+ (NSString *)tipOnMessageRevoked:(NIMMessage *)message
+{
+    BOOL isFromMe = [message.from isEqualToString:[[NIMSDK sharedSDK].loginManager currentAccount]];
+    NSString *tip = @"你";
+    if (!isFromMe) {
+        switch (message.session.sessionType) {
+            case NIMSessionTypeP2P:
+                tip = @"对方";
+                break;
+            case NIMSessionTypeTeam:{
+                NIMKitInfo *info = [[NTESDataManager sharedInstance] infoByUser:message.from inSession:message.session];
+                tip = info.showName;
+            }
+                break;
+            default:
+                    break;
+        }
+    }
+    return [NSString stringWithFormat:@"%@撤回了一条消息",tip];
+}
+
+
+ (BOOL)canMessageBeForwarded:(NIMMessage *)message
+{
+    if (!message.isReceivedMsg && message.deliveryState == NIMMessageDeliveryStateFailed) {
+        return NO;
+    }
+    id<NIMMessageObject> messageobject = message.messageObject;
+    if ([messageobject isKindOfClass:[NIMCustomObject class]]
+        && ([[(NIMCustomObject *)messageobject attachment] isKindOfClass:[NTESSnapchatAttachment class]]
+            || [[(NIMCustomObject *)messageobject attachment] isKindOfClass:[NTESWhiteboardAttachment class]])) {
+            return NO;
+        }
+    if ([messageobject isKindOfClass:[NIMNotificationObject class]]) {
+        return NO;
+    }
+    if ([messageobject isKindOfClass:[NIMTipObject class]]) {
+        return NO;
+    }
+    return YES;
+}
+
+ (BOOL)canMessageBeRevoked:(NIMMessage *)message
+{
+    BOOL isFromMe = [message.from isEqualToString:[[NIMSDK sharedSDK].loginManager currentAccount]];
+    BOOL isToMe   = [message.session.sessionId isEqualToString:[[NIMSDK sharedSDK].loginManager currentAccount]];
+    BOOL isDeliverFailed = !message.isReceivedMsg && message.deliveryState == NIMMessageDeliveryStateFailed;
+    if (!isFromMe || isToMe || isDeliverFailed) {
+        return NO;
+    }
+    id<NIMMessageObject> messageobject = message.messageObject;
+    if ([messageobject isKindOfClass:[NIMTipObject class]]
+        || [messageobject isKindOfClass:[NIMNotificationObject class]]) {
+        return NO;
+    }
+    if ([messageobject isKindOfClass:[NIMCustomObject class]]
+        && ([[(NIMCustomObject *)messageobject attachment] isKindOfClass:[NTESWhiteboardAttachment class]])) {
+            return NO;
+    }
+    return YES;
+}
+
+@end