用代码获取APP启动页图片

用代码获取APP启动页图片

源码 - swift

//
//  AppleSystemService.swift
//  Swift-Animations
//
//  Created by YouXianMing on 16/8/11.
//  Copyright © 2016年 YouXianMing. All rights reserved.
//

import UIKit

class AppleSystemService : NSObject {
    
    /**
     Get the lauch image.
     
     - returns: The lauch image.
     */
    class func launchImage() -> UIImage {
        
        var lauchImage      : UIImage!
        var viewOrientation : String!
        let viewSize        = UIScreen.mainScreen().bounds.size
        let orientation     = UIApplication.sharedApplication().statusBarOrientation
        
        if orientation == .LandscapeLeft || orientation == .LandscapeRight {
            
            viewOrientation = "Landscape"
            
        } else {
            
            viewOrientation = "Portrait"
        }
        
        let imagesInfoArray = NSBundle.mainBundle().infoDictionary!["UILaunchImages"]
        for dict : Dictionary <String, String> in imagesInfoArray as! Array {
            
            let imageSize = CGSizeFromString(dict["UILaunchImageSize"]!)
            if CGSizeEqualToSize(imageSize, viewSize) && viewOrientation == dict["UILaunchImageOrientation"]! as String {
                
                lauchImage = UIImage(named: dict["UILaunchImageName"]!)
            }
        }
        
        return lauchImage
    }
}

源码 - Objective-C

//
//  AppleSystemService.h
//  AppleSystemService
//
//  Created by YouXianMing on 16/7/2.
//  Copyright © 2016年 YouXianMing. All rights reserved.
//

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>

@interface AppleSystemService : NSObject

/**
 *  Get the lauch image.
 *
 *  @return The lauch image.
 */
+ (UIImage *)launchImage;

@end

//
//  AppleSystemService.m
//  AppleSystemService
//
//  Created by YouXianMing on 16/7/2.
//  Copyright © 2016年 YouXianMing. All rights reserved.
//

#import "AppleSystemService.h"

@implementation AppleSystemService

+ (UIImage *)launchImage {

    UIImage               *lauchImage      = nil;
    NSString              *viewOrientation = nil;
    CGSize                 viewSize        = [UIScreen mainScreen].bounds.size;
    UIInterfaceOrientation orientation     = [[UIApplication sharedApplication] statusBarOrientation];
    
    if (orientation == UIInterfaceOrientationLandscapeLeft || orientation == UIInterfaceOrientationLandscapeRight) {
        
        viewOrientation = @"Landscape";
        
    } else {
    
        viewOrientation = @"Portrait";
    }
    
    NSArray *imagesDictionary = [[[NSBundle mainBundle] infoDictionary] valueForKey:@"UILaunchImages"];
    for (NSDictionary *dict in imagesDictionary) {
        
        CGSize imageSize = CGSizeFromString(dict[@"UILaunchImageSize"]);
        if (CGSizeEqualToSize(imageSize, viewSize) && [viewOrientation isEqualToString:dict[@"UILaunchImageOrientation"]]) {
        
            lauchImage = [UIImage imageNamed:dict[@"UILaunchImageName"]];
        }
    }

    return lauchImage;
}

@end