ios Array 数组的valueForkeypath 快速的处理以及数组的拆分

来源：互联网发布：mac系统修复软件编辑：程序博客网时间：2024/06/14 16:10

http://www.jianshu.com/p/e71cec144966

确实很方便

-(void)splitArray{
    if(self.unReadmsgModule){
        if (self.module.showingMessages.count>self.unReadmsgModule.unReadmsgCount) {
            NSIndexSet * unreadIndexSet = [NSIndexSet indexSetWithIndexesInRange:NSMakeRange(self.module.showingMessages.count-self.unReadmsgModule.unReadmsgCount, self.unReadmsgModule.unReadmsgCount)];
            NSIndexSet * readIndexSet = [NSIndexSet indexSetWithIndexesInRange:NSMakeRange(0, self.module.showingMessages.count-self.unReadmsgModule.unReadmsgCount)];
            self.module.unReadMsgArray = [[NSMutableArray alloc]initWithArray:[self.module.showingMessages objectsAtIndexes:unreadIndexSet]];
            self.module.readMsgArray = [[NSMutableArray alloc]initWithArray:[self.module.showingMessages objectsAtIndexes:readIndexSet]];

        }else{
            self.module.unReadMsgArray = self.module.showingMessages;
        }
    }

数组的拆分

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