MJPhotoBrowser 用法

一、使用方法:
 
#import "MJPhotoBrowser.h"
#import "MJPhoto.h"
 
- (void)tapPhoto:(UITapGestureRecognizer *)recognizer
{
    //1.创建图片浏览器
    MJPhotoBrowser *brower = [[MJPhotoBrowser alloc] init];
   
    //2.告诉图片浏览器显示所有的图片
    NSMutableArray *photos = [NSMutableArray array];
    for (int i = 0 ; i < self.photos.count; i++) {
        Photo *pic = self.photos[i];
        //传递数据给浏览器
        MJPhoto *photo = [[MJPhoto alloc] init];
        photo.url = [NSURL URLWithString:pic.bmiddle_pic];
        photo.srcImageView = self.subviews[i]; //设置来源哪一个UIImageView
        [photos addObject:photo];
    }
    brower.photos = photos;
   
    //3.设置默认显示的图片索引
    brower.currentPhotoIndex = recognizer.view.tag;
   
    //4.显示浏览器
    [brower show];
}
 
 
二、我用到的具体实例:
 
1)腾讯聊天cell中获取第几张照片,并打开图像浏览器
 
- (void)TecentChatImageCellShouldShowFullScreen:(TecentChatImageCell *)cell
{
    MJPhotoBrowser *browser = [[MJPhotoBrowseralloc] init];
   
    browser.currentPhotoIndex = [selfgetPicUrl:cell.indexPath.row];//获取播放第几个图片
   
    browser.photos = _localPicMsgArray;//数组中的是MJPhoto对象
    [browser show];
    //当键盘拉起的时候, 需要关闭键盘, 否则图片显示一半
    [selfdoEndEditGesture];
}
 
2)方法来返回第几个元素
 
- (NSInteger)getPicUrl:(NSInteger)dd
{
    NSInteger c = 0;
    NSInteger d = 0;
    [_localPicMsgArrayremoveAllObjects];
    for (int i=0;i<self.dataSource.count;++i) {
        id model = self.dataSource[i];
        NSInteger type = [NSDictionary_Number_Object_ForKey(model, @"type") integerValue];
        if (type == MESSAGE_TYPE_IMAGE) {
            NSString* imageURL = [model objectForKey:@"imageURLpath"];//远程URLimage
            NSString* imagePath = [model objectForKey:@"path"];//本地URLimage
            MJPhoto *photo = [[MJPhotoalloc] init];
            if (IS_NS_STRING_EMPTY(imageURL)) {
                //通过本地URL来查找iamge的方法
                for (IDSPicSendModel *picModel in_localPicImageMsgArray) {
                    if ([picModel.picPathisEqualToString:imagePath]) {
                        photo.image = picModel.picImage;
                        NSLog(@"%@",picModel.picPath);
                        break;
                    }
                }
            }
            else {
                //取远程URL方法
                photo.url = [NSURLURLWithString:imageURL];
            }
            [_localPicMsgArraycl_addObject:photo];
            if (i == dd) {
                c = d;
            }
            ++d;
        }
    }
    //返回的是第几个图片元素
    return c;
}
 
 
原文地址:https://www.cnblogs.com/firstrate/p/7489500.html