UIImage转成base64串
UIImage *image = self.pickImageView.image;
NSData *imageData = UIImageJPEGRepresentation(image, 0.3f);
//NSDataBase64EncodingEndLineWithLineFeed
这个枚举值是base64串不换行
NSString *imageBase64Str = [imageData base64EncodedStringWithOptions:NSDataBase64EncodingEndLineWithLineFeed];
// NSLog(@"%@",imageBase64Str);
if (imageBase64Str.length == 0) {
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"提示" message:@"请选取图片" preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"好" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
}];
[alert addAction:okAction];
[self presentViewController:alert animated:NO completion:nil];
return;
}
base64串转UIImage
NSData *imageData = [[NSData alloc] initWithBase64EncodedString:imageStr options:NSDataBase64DecodingIgnoreUnknownCharacters];
UIImage *image = [UIImage imageWithData:imageData];
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
imageView.frame = [UIScreen mainScreen].bounds;
[self.view addSubview:imageView];
