iOS中关于动态Tableview中的cell数据传输的多线程问题解决之拙见

首先我们先明确一下问题:

//

//  PIcTableViewController.h

//  故事版自定义Cell 内加线程

//

//  Created by tareba on 15/12/2.

//  Copyright ? 2015年 tanada. All rights reserved.

//

#import

@interface PIcTableViewController : UITableViewController

@end

//

//  PIcTableViewController.m

//  故事版自定义Cell 内加线程

//

//  Created by tareba on 15/12/2.

//  Copyright ? 2015年 tanada. All rights reserved.

//

//#import "AppRecord.h"

#import "PIcTableViewController.h"

#import "NewCell.h"

@interface PIcTableViewController ()

@property (nonatomic,strong) NSMutableArray * arrIamge;

@property(nonatomic,strong) NSOperationQueue *operationQueue;

@property (nonatomic,strong)NSArray*imgURLs;

@property (nonatomic,strong)UIImage *image;

@end

@implementation PIcTableViewController

- (NSArray *)imgURLs {

    if(_imgURLs == nil) {

        NSString*i1=@"http://down.tutu001.com/d/file/20101129/2f5ca0f1c9b6d02ea87df74fcc_560.jpg";

        NSString *i2=@"http://img.taopic.com/uploads/allimg/130501/240451-13050106450911.jpg";

        NSString* i3=@"http://pic.nipic.com/2007-11-09/2007119122519868_2.jpg";

        NSString* i4=@"http://pic.nipic.com/2007-11-09/200711912230489_2.jpg";

        _imgURLs =@[[NSURL URLWithString:i1],[NSURL URLWithString:i2],[NSURL URLWithString:i3],[NSURL URLWithString:i4] ];

    }

    return _imgURLs;

}

-(void)downloadImage:(NSArray*)arrURLs{

    for (int i=0; icount; i++) {

        NSData *data=[NSData dataWithContentsOfURL:self.imgURLs[i]];

        UIImage *image=[UIImage imageWithData:data];

        [self.arrIamge addObject: image];

    }

}

- (void)viewDidLoad {

    [super viewDidLoad];

    NSInvocationOperation*op=[[NSInvocationOperation alloc]initWithTarget:self selector:@selector(downloadImage:) object:self.imgURLs];

    NSOperationQueue *queue=[[NSOperationQueue alloc]init];

    [queue addOperation:op];

    self.tableView.backgroundColor=[UIColor whiteColor];

    [self.tableView registerClass:[NewCell class] forCellReuseIdentifier:@"Cell"];

    // Uncomment the following line to preserve selection between presentations.

    // self.clearsSelectionOnViewWillAppear = NO;

    // Uncomment the following line to display an Edit button in the navigation bar for this view controller.

    // self.navigationItem.rightBarButtonItem = self.editButtonItem;

}

 -(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{

     return 200;

 }

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {

//#warning Incomplete implementation, return the number of sections

    return 1;

}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {

//#warning Incomplete implementation, return the number of rows

    return 12;

}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    NewCell *cell=[tableView dequeueReusableCellWithIdentifier:@"Cell" forIndexPath:indexPath];

    if (self.arrIamge.count!=self.imgURLs.count) {

        cell.imageview.image=[UIImage imageNamed:@"Lion.jpg"];

        NSLog(@"%@",cell.imageview.image);

        return cell;

    }else{

        NSInteger index=indexPath.row%self.arrIamge.count;

             cell.imageview.image=self.arrIamge[index];

        return cell;

    }

//    dispatch_async( dispatch_get_main_queue(), ^{

//        cell.imageview.image=self.image;

//         NSLog(@"2 %@",[NSThread currentThread]);

//     });

//

}

- (NSMutableArray *) arrIamge {

if(_arrIamge == nil) {

        _arrIamge = [NSMutableArray array ];

}

return _arrIamge;

}

@end

自定义的cell

//

//  NewCell.h

//  故事版自定义Cell 内加线程

//

//  Created by tareba on 15/12/2.

//  Copyright ? 2015年 tanada. All rights reserved.

//

#import

@interface NewCell : UITableViewCell

@property (strong, nonatomic) UIImageView *imageview;

@end

//

//  NewCell.m

//  故事版自定义Cell 内加线程

//

//  Created by tareba on 15/12/2.

//  Copyright ? 2015年 tanada. All rights reserved.

//

#import "NewCell.h"

@implementation NewCell

- (UIImageView *)imageview {

    if(_imageview == nil) {

        _imageview = [[UIImageView alloc] init];

        _imageview.backgroundColor=[UIColor redColor];

        [self.contentView addSubview:_imageview];

        [_imageview mas_makeConstraints:^(MASConstraintMaker *make) {

            make.edges.mas_equalTo(UIEdgeInsetsMake(0, 0, 0, 0));

        }];

        self.contentView.contentMode=UIViewContentModeScaleAspectFit;

    }

    return _imageview;

}

- (void)awakeFromNib {

    // Initialization code

}

- (void)setSelected:(BOOL)selected animated:(BOOL)animated {

    [super setSelected:selected animated:animated];

    // Configure the view for the selected state

}

@end

原文：http://www.cnblogs.com/zhao-jie-li/p/5128481.html