将Base64字符串转换为位图或图像Xamarin或Android

问题描述：

我正在尝试将Base64字符串转换为图像，并使用同一图像设置ImageView.我知道如何在Java中完成它，但是在C#中遇到了麻烦.任何人都有一个想法如何在C#中完成它?

I'm trying to convert a Base64 string to an image and set ImageView using the same image. I know how to get it done in java, but I'm having a trouble in C#. Anyone have an idea of how to get it done in C#?

我尝试过的一些代码；

Some of the code I've tried;

public Image Base64ToImage(string base64String)
 {
    // Convert base 64 string to byte[]
    byte[] imageBytes = Convert.FromBase64String(base64String);
    // Convert byte[] to Image
    using (var ms = new MemoryStream(imageBytes, 0, imageBytes.Length))
    {
        Image image = Image.FromStream(ms, true);
        return image;
    }
 }

答

Base64到位图:

public Bitmap Base64ToBitmap(String base64String)
{
    byte[] imageAsBytes = Base64.Decode(base64String, Base64Flags.Default);
    return BitmapFactory.DecodeByteArray(imageAsBytes, 0, imageAsBytes.Length);
}

到Base64的位图:

public String BitmapToBase64(Bitmap bitmap)
{
    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
    bitmap.Compress(Bitmap.CompressFormat.Png, 100, byteArrayOutputStream);
    byte[] byteArray = byteArrayOutputStream.ToByteArray();
    return Base64.EncodeToString(byteArray, Base64Flags.Default);
}

将Base64字符串转换为位图或图像Xamarin或Android

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