【代码笔记】iOS-图片手势，上传照片

#import <UIKit/UIKit.h>

@interface RootViewController : UIViewController
<UIActionSheetDelegate,UIImagePickerControllerDelegate,UINavigationControllerDelegate>
{
UIImageView *imageView;
}
@end

#import "RootViewController.h"

@interface RootViewController ()

@end

@implementation RootViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}

- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.

self.title=@"图片手势，上传照片";
//初始化背景图
[self initBackgroundView];

}
#pragma -mark -functions
-(void)initBackgroundView
{
imageView =[[UIImageView alloc]initWithFrame:CGRectMake(100, 150, 200, 150)];
imageView.backgroundColor = [UIColor redColor];
[self.view addSubview:imageView];

[imageView setUserInteractionEnabled:YES];
UITapGestureRecognizer * clickGesture = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(clickGesture:)];
[imageView addGestureRecognizer:clickGesture];

}
#pragma -mark -doClickActions
-(void)clickGesture:(UIGestureRecognizer*)gesture
{
UIActionSheet *actionSheet = [[UIActionSheet alloc]initWithTitle:@"选择图片来源" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:@"拍照" otherButtonTitles:@"本地相册", nil];
[actionSheet showInView:self.view];
}
#pragma -mark UIActionSheetDelegate
-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
NSLog(@"--buttonIndex-%ld",buttonIndex);

UIImagePickerController *pickView = [[UIImagePickerController alloc]init];
pickView.delegate=self;

if(buttonIndex==0&&!TARGET_IPHONE_SIMULATOR){
//相机
pickView.sourceType = UIImagePickerControllerSourceTypeCamera;
[self presentViewController:pickView animated:NO completion:nil];

}else if (buttonIndex==1){
//相册
pickView.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentViewController:pickView animated:NO completion:nil];

}
}

#pragma -mark -UIImagePickerControllerDelegate

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
UIImage * image = [info objectForKey:UIImagePickerControllerOriginalImage];
[imageView setImage:image];
[picker dismissViewControllerAnimated:NO completion:nil];

}
-(void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
[picker dismissViewControllerAnimated:NO completion:nil];

}

- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}