Viewing Bitmap(s) While Debugging

Question

I have a number of Android.Graphics.Bitmap(s) that I create, use & modify in my app. In most cases, the Bitmap is modified in multiple ways in the same method/function, so setting it as the source of an ImageView (for debugging purposes) would not work, since it would be modified again before the UI was updated. Is there any good way to examine a Bitmap while debugging, or a simple way to temporarily save it to a local file on my machine (without needing to mess around with permissions & other stuff)?

Answer 1

Hello,

Is there any good way to examine a Bitmap while debugging, or a simple way to temporarily save it to a local file on my machine (without needing to mess around with permissions & other stuff)?

Depending on your Android's storage permission settings, you can stage the bitmaps you need to the app's internal storage, which doesn't require any additional permissions.

Please refer to the following code sample and File Storage and Access with Xamarin.Android to get more details:

var bmp = BitmapFactory.DecodeResource(this.Resources, Resource.Drawable.abc_ab_share_pack_mtrl_alpha);
var backingFile = System.IO.Path.Combine(System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal), "test2.png");
FileStream fs = System.IO.File.OpenWrite(backingFile);
bmp.Compress(Bitmap.CompressFormat.Png, 100, fs);
fs.Flush();
fs.Close();
Toast.MakeText(this, "success!", ToastLength.Long).Show();

Best Regards,

Alec Liu.

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