把手势添加到一个图片上， 别忘了开启*****用户交互****
self.photoImageView.userInteractionEnabled = YES;
// RootViewController.m
// imageHandle
//
// Created by 李洪鹏 on 15/7/15.
// Copyright (c) 2015年 李洪鹏. All rights reserved.
//
#import "RootViewController.h"
#import "RootView.h"
@interface RootViewController ()<UIActionSheetDelegate,UIImagePickerControllerDelegate,UINavigationControllerDelegate>
@property (nonatomic, strong)RootView *rootView;
@end
@implementation RootViewController
-(void)loadView
{
self.rootView = [[RootView alloc] initWithFrame:[UIScreen mainScreen].bounds];
self.view = self.rootView;
}
- (void)viewDidLoad {
[super viewDidLoad];
//添加轻拍手势
UITapGestureRecognizer *tapGR = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapAction:)];
[self.rootView.photoImageView addGestureRecognizer:tapGR];
}
//实现手势的方法
- (void)tapAction:(UITapGestureRecognizer *)sender
{
// NSLog(@"大家好，我是手势");
UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:@"请选择图片" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles:@"从相册选取",@"拍照", nil];
[sheet showInView:self.rootView];
}
#pragma mark- -----action的代理方法
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
// 从相册中选择
if (actionSheet.firstOtherButtonIndex == buttonIndex) {
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) {
UIImagePickerController *imagePC = [[UIImagePickerController alloc] init];
// 通过代理方法拿到图片
imagePC.delegate = self;
// 可以对图片进行编辑，对于要拿到编辑的图片 这个属性必不可少
imagePC.allowsEditing = YES;
// 指定picker 从相册中去选取
imagePC.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentViewController:imagePC animated:YES completion:nil];
}
} else if (buttonIndex == actionSheet.firstOtherButtonIndex + 1) { // 相机
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
UIImagePickerController *imagePC = [[UIImagePickerController alloc] init];
// 通过代理方法拿到图片
imagePC.delegate = self;
// 可以对图片进行编辑，对于要拿到编辑的图片 这个属性必不可少
imagePC.allowsEditing = YES;
// 指定picker 去拍照
imagePC.sourceType = UIImagePickerControllerSourceTypeCamera;
[self presentViewController:imagePC animated:YES completion:nil];
}
}
}
//取消按钮的代理方法
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
[picker dismissViewControllerAnimated:YES completion:nil];
}
#pragma mark-----实现代理方法
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
[picker dismissViewControllerAnimated:YES completion:nil];
// (UIImagePickerControllerEditedImage) k值苹果文档已经写好了
UIImage *image1 = [info objectForKey:UIImagePickerControllerEditedImage];
self.rootView.photoImageView.image = image1;
}
- (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.
}
*/
@end