1..引入框架
#import "CLLocation+GPSDictionary.h"
#import "NSDictionary+CLLocation.h"
#import <AssetsLibrary/AssetsLibrary.h>
2.
- (void) imagePickerController: (UIImagePickerController*) reader
didFinishPickingMediaWithInfo: (NSDictionary*) info
{
NSString *strType = [info objectForKey:UIImagePickerControllerMediaType];
if ([strType isEqualToString:@"public.image"]) //当选择的类型是图片
{
__block NSMutableDictionary *imageMetadata = nil;
NSURL *assetURL = [info objectForKey:UIImagePickerControllerReferenceURL];
ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
[library assetForURL:assetURL
resultBlock:^(ALAsset *asset) {
imageMetadata = [[NSMutableDictionary alloc] initWithDictionary:asset.defaultRepresentation.metadata];
//控制台输出查看照片的metadata
self.picDataInfo = imageMetadata[@"{TIFF}"][@"DateTime"];
NSLog(@"%@**********", self.picDataInfo);
self.editeOrNot = YES;
UIImage *image = [info objectForKey:@"UIImagePickerControllerEditedImage"]; //先把图片转成NSData
self.image = image;
[reader dismissViewControllerAnimated:YES completion:nil]; //关闭相册界面
self.imageView = [CRMFactory createImageViewWithFrame:CGRectMake(15, self.takePhotoButton.frame.origin.y, 60, 60) image:image];
[self.view addSubview:_imageView];
//看大图
self.imageView.userInteractionEnabled = YES;
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(showPic)];
[self.imageView addGestureRecognizer:tap];
self.takePhotoButton.frame = CGRectMake(15 + 60 + 15, self.takePhotoButton.frame.origin.y, 60, 60);
UIImage *scaleImage = [CRMDatahandle scaleFromImage:image];
UIImage *waterPoint = [self addText:scaleImage text:self.picDataInfo];
NSData *data = UIImageJPEGRepresentation(waterPoint, 1.0);
self.picName = [CRMDatahandle picName];
[self uplosaToServersice:data];
}
failureBlock:^(NSError *error) {
}];
}
}
#pragma mark - 添加水印
- (UIImage *)addText:(UIImage *)img text:(NSString *)mark {
if (mark.length != 0) {
} else {
//将时间戳转换成时间
NSDate *date = [NSDate date];
// 限定格式
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:@" yyyy-MM-dd hh:mm:ss"];
[formatter setTimeZone:[NSTimeZone timeZoneWithName:@"GMT"]];
NSTimeZone *timeZone = [NSTimeZone timeZoneWithName:@"china"];//时区名字或地区名字
[formatter setTimeZone:timeZone];
mark = [formatter stringFromDate:date];
}
int w = img.size.width;
int h = img.size.height;
UIGraphicsBeginImageContext(img.size);
[img drawInRect:CGRectMake(0, 0, w, h)];
NSMutableParagraphStyle *paragraphStyle = [[NSParagraphStyle defaultParagraphStyle] mutableCopy];
paragraphStyle.lineBreakMode = NSLineBreakByCharWrapping;
NSDictionary *attribute = @{NSFontAttributeName: [UIFont systemFontOfSize:25],
NSParagraphStyleAttributeName: paragraphStyle,
NSForegroundColorAttributeName : [UIColor redColor],
NSTextEffectAttributeName: NSTextEffectLetterpressStyle
};
[mark drawInRect:CGRectMake(0, h - 40, w , 40) withAttributes:attribute];
UIImage *aImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return aImage;
}