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URL的image
NSString* imagePath = [model objectForKey:@"path"];//本地URL的image
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;
}