ios/Timi/Class/Base/Custom/Common/HeadPhotoSelectView.m

//
//  HeadPhotoSelectView.m
//  MIT_Endorsement
//
//  Created by 翟玉磊 on 2017/9/25.
//  Copyright © 2017年 翟玉磊. All rights reserved.
//

#import "HeadPhotoSelectView.h"

@interface HeadPhotoSelectView ()<UIImagePickerControllerDelegate, UINavigationControllerDelegate>
{
    
    BOOL _isEditing;    //是否开启裁剪    默认开启
    BOOL _isOpenHead;   //是否开启头像选择（会进行压缩）默认开启
}

@property (nonatomic, strong) UIAlertController *actionSheetController;

@property (nonatomic, strong) UIViewController *tempController;
@end

@implementation HeadPhotoSelectView

+ (instancetype)shared {
    
    static HeadPhotoSelectView *sharedManager;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        sharedManager = [[HeadPhotoSelectView alloc] initWithFrame:[UIScreen mainScreen].bounds];
    });
    return sharedManager;
}

- (instancetype)initWithFrame:(CGRect)frame {
    if (self = [super initWithFrame:frame]) {
        
        self.backgroundColor = [UIColor clearColor];
        [self buildView];
    }
    return self;
}

- (void)buildView {
    
    self.actionSheetController = [UIAlertController alertControllerWithTitle:kLocalizedString(@"添加图片") message:nil preferredStyle:UIAlertControllerStyleActionSheet];

    UIAlertAction *photoAction = [UIAlertAction actionWithTitle:kLocalizedString(@"拍照") style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
        NSLog(@"打开相机");
        [self showCamera];
    }];
    UIAlertAction *takeAction = [UIAlertAction actionWithTitle:kLocalizedString(@"从相册选择") style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
        NSLog(@"打开相册");
        [self openPhotoAlbum];
    }];
    UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:kLocalizedString(@"取消") style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
        [self removeFromSuperview];
    }];
    
    [self.actionSheetController addAction:photoAction];
    [self.actionSheetController addAction:takeAction];
    [self.actionSheetController addAction:cancelAction];
}

- (void)showWithDelegate:(UIViewController *)delegate {
    
    _isEditing = YES;
    _isOpenHead = YES;
    _tempController = delegate;
    
    [_tempController presentViewController:self.actionSheetController animated:YES completion:nil];
}

- (void)dismiss {
    
}

- (void)setupAllowsEditing:(BOOL)isEditing {
    
    _isEditing = isEditing;
}

- (void)openHeadSelect:(BOOL)isOpenHead {
    
    _isOpenHead = isOpenHead;
}

#pragma mark - 调用相机设备和图片库
//打开图库
- (void)openPhotoAlbum{
    if ([SystemRightObject isAlbumRight]) {
        UIImagePickerController *controller = [[UIImagePickerController alloc] init];
        controller.delegate = self;
        controller.allowsEditing = _isEditing;
        controller.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
        
        [self.tempController presentViewController:controller animated:YES completion:nil];
    }
}

- (void)showCamera{
    if ([SystemRightObject isCameraRightPopup:YES]) {
        UIImagePickerController *controller = [[UIImagePickerController alloc] init];
        controller.delegate = self;
        controller.allowsEditing = _isEditing;
        controller.sourceType = UIImagePickerControllerSourceTypeCamera;
        
        [self.tempController presentViewController:controller animated:YES completion:nil];
    }
}

//对图片进行裁剪
- (NSData *)imageWithImage:(UIImage*)image scaledToSize:(CGSize)newSize setType:(int)type;
{
    UIGraphicsBeginImageContext(newSize);
    [image drawInRect:CGRectMake(0,0,newSize.width,newSize.height)];
    UIImage* newImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    if(type==1)
        return UIImageJPEGRepresentation(newImage, 0.1);
    return UIImagePNGRepresentation(newImage);
}

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {

    if ([picker isKindOfClass:[UIImagePickerController class]]) {
        [picker dismissViewControllerAnimated:YES completion:nil];
    }
}

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{
    NSData* imageData=nil;
    UIImage *image = nil;
    if (_isEditing) {
        image = [info valueForKey:UIImagePickerControllerEditedImage];
    }else {
        image = [info valueForKey:UIImagePickerControllerOriginalImage];
        
        //解决手机拍照不裁剪旋转90度的问题
        image = [image fixOrientation];
    }
    
    //判断图片是不是png格式的文件
    CGSize size;
    size=CGSizeMake(image.size.width/4, image.size.height/4);
    if (UIImagePNGRepresentation(image)) {
        //返回为png图像。
        if (_isOpenHead) {
            imageData = [self imageWithImage:image scaledToSize:size setType:0];
        }else {
            imageData = UIImagePNGRepresentation(image);
        }
    }else {
        //返回为JPEG图像。
        if (_isOpenHead) {
            imageData=[self imageWithImage:image scaledToSize:size setType:1];
        }else {
            imageData = UIImageJPEGRepresentation(image, 1.0);
        }
    }
    
    [picker dismissViewControllerAnimated:YES completion:^{
        UIImage* endImage = [UIImage imageWithData:imageData];
        if (self.didSelectedCompletionCallback) {
            self.didSelectedCompletionCallback(endImage);
        }
    }];
}

- (void)imageSavedToPhotosAlbum:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo{
    NSString *message = @"";
    if (!error) {
        message = @"成功保存到相册";
    }else
    {
        message = [error description];
    }
    NSLog(@"message is %@",message);
}

@end