iOS仿微信图片分享界面实现代码

//
// YSYPreviewViewController.m
// NineShare
//
// Created by ZhangChangwei on 15/2/1.
// Copyright (c) 2015年 9Studio. All rights reserved.
//
 
#import "YSYPreviewViewController.h"
static UIImage *currentImage;
@interface YSYPreviewViewController ()
- (IBAction)deleteSelectedImage:(id)sender;
@property (weak, nonatomic) IBOutlet UIImageView *previewImageView;
 
@end
 
@implementation YSYPreviewViewController
 
- (void)viewDidLoad {
 [super viewDidLoad];
 // Do any additional setup after loading the view.
 _previewImageView.image=currentImage;
}
 
- (void)didReceiveMemoryWarning {
 [super didReceiveMemoryWarning];
 // Dispose of any resources that can be recreated.
}
 
/*
#pragma mark - Navigation
 
// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
 // Get the new view controller using [segue destinationViewController].
 // Pass the selected object to the new view controller.
}
*/
 
- (IBAction)deleteSelectedImage:(id)sender {
 UIActionSheet *action=[[UIActionSheet alloc] initWithTitle:@"要删除这张照片吗？" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:@"删除" otherButtonTitles: nil];
 [action showInView:self.view];
}
-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex{
 if(buttonIndex==actionSheet.cancelButtonIndex)
 {
 return;
 }
 else
 {
 [PostTableViewController deleteSelectedImageWithImage:currentImage];
 [self.navigationController popToRootViewControllerAnimated:YES];
 }
}
 
+(void)setPreviewImage:(UIImage *)image{
 currentImage=image;
}
@end