//
//  KXLaunchImageView.m
//  CAISHEN
//
//  Created by kuxuan on 2017/8/17.
//  Copyright © 2017年 kuxuan. All rights reserved.
//

#import "KXLaunchImageView.h"

@implementation KXLaunchImageView

#pragma mark - CustomAccessors
- (instancetype)initWithFrame:(CGRect)frame {
    if (self = [super initWithFrame:[UIScreen mainScreen].bounds]) {
        
        self.userInteractionEnabled = YES;
        self.image = [self launchImage];
    }
    
    return self;
}

#pragma mark - Private
/**
 获取启动图
 
 @return 启动图
 */
- (UIImage *)launchImage {
    
    UIImage *imagePortrait = [self launchImageWithType:@"Portrait"];
    if(imagePortrait) {
        return imagePortrait;
    }
    
    UIImage *imageLandscape = [self launchImageWithType:@"Landscape"];
    if(imageLandscape) {
        return imageLandscape;
    }
    
    NSLog(@"获取LaunchImage失败!请检查是否添加启动图,或者规格是否有误.");
    
    return nil;
}

/**
 通过图片方向获取启动图
 
 @param type 图片方向
 @return 启动图
 */
- (UIImage *)launchImageWithType:(NSString *)type {
    
    CGSize screenSize = [UIScreen mainScreen].bounds.size;
    NSString *viewOrientation = type;
    NSString *launchImageName = nil;
    
    NSArray<NSDictionary *> *imagesDict = [[[NSBundle mainBundle] infoDictionary] valueForKey:@"UILaunchImages"];
    for (NSDictionary *dict in imagesDict) {
        
        CGSize imageSize = CGSizeFromString(dict[@"UILaunchImageSize"]);
        
        if([viewOrientation isEqualToString:dict[@"UILaunchImageOrientation"]]) {
            
            if([dict[@"UILaunchImageOrientation"] isEqualToString:@"Landscape"]) {
                imageSize = CGSizeMake(imageSize.height, imageSize.width);
            }
            
            if(CGSizeEqualToSize(imageSize, screenSize)) {
                launchImageName = dict[@"UILaunchImageName"];
                UIImage *image = [UIImage imageNamed:launchImageName];
                
                return image;
            }
        }
    }
    
    return nil;
}

@end