erpsuiteios/Redant Drivers/Apex And Drivers/PhotoPreView/RAPhotoPreviewController.m

//
//  RAPhotoPreviewController.m
//  Apex And Drivers
//
//  Created by Jack on 2018/6/5.
//  Copyright © 2018年 USAI. All rights reserved.
//

#import "RAPhotoPreviewController.h"

@interface RAPhotoPreviewController () <UIScrollViewDelegate>

@property (strong, nonatomic) IBOutlet UIImageView *photoImageView;
@property (strong, nonatomic) IBOutlet UIScrollView *photoScrollView;


@end

@implementation RAPhotoPreviewController

+ (NSString *)storyboardID {
    return NSStringFromClass([self class]);
}

+ (instancetype)viewControllerFromStoryboard {
    RAPhotoPreviewController *previewVC = [[UIStoryboard storyboardWithName:@"PhotoPreview" bundle:nil] instantiateViewControllerWithIdentifier:[self storyboardID]];
    previewVC.canDelete = YES;
    return previewVC;
}

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    
    if (@available(iOS 11.0, *)) {
        self.photoScrollView.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
    } else {
        self.automaticallyAdjustsScrollViewInsets = NO;
    }
    
    self.photoImageView.image = self.image;
    [self configureNavigationBar];
}

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

- (void)configureNavigationBar {
    
    if (self.canDelete) {
        UIBarButtonItem *deleteItem = [[UIBarButtonItem alloc] initWithTitle:@"delete" style:UIBarButtonItemStylePlain target:self action:@selector(deleteActionClick:)];
        self.navigationItem.rightBarButtonItem = deleteItem;
    }
}

#pragma mark - Action

- (void)deleteActionClick:(UIBarButtonItem *)sender {
    
    UIAlertController *alertVC = [UIAlertController alertControllerWithTitle:nil message:@"Are you sure you want to delete it" preferredStyle:UIAlertControllerStyleAlert];
    __weak typeof(self) weakSelf = self;
    UIAlertAction *yesAction = [UIAlertAction actionWithTitle:@"Yes" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
        if (weakSelf.completion) {
            weakSelf.completion();
        }
        [weakSelf.navigationController popViewControllerAnimated:YES];
    }];
    UIAlertAction *noAction = [UIAlertAction actionWithTitle:@"No" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
        
    }];
    
    [alertVC addAction:noAction];
    [alertVC addAction:yesAction];
    
    [self presentViewController:alertVC animated:YES completion:nil];
}

#pragma mark - Scroll Delegate

- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView {
    return self.photoImageView;
}

@end