Byte array shows value but the ImgView.Image shows null in ios

问题

I am trying to display an image into UIImageView through this method NSData.FromArray() but it gives an null reference exception my code is the following:

Byte _imgData = GetRawData(_imgPath);  // this method get the byte array of size ([131072]) 
NSData _data = NSData.FromArray(_imgData);
ImgView.Image = UIImage.LoadFromData(_data) //in this _data shows the byte array value but the ImgView.Image shows null 

Byte array get the RLE Compress data.

ImgView.Image = UIImage.LoadFromData(_data)

_data is RLE compress byte data I don't know how I can convert it to IOS supported image format. It gives an error, any suggestions to solve this issue?

回答1:

UIImage.Load* methods will return null if the data (be it a NSData or a filename) is invalid and/or the format is unknown to UIImage.

You'll likely need to use a lower level API to provide some data (e.g. width, height, depth) about any RAW data. Once that's done you can construct an UIImage on top of it.

来源：https://stackoverflow.com/questions/10959297/byte-array-shows-value-but-the-imgview-image-shows-null-in-ios