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Convert an image (selected by path) to base64 string
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Get the byte array (byte[]) representation of the image, then use Convert.ToBase64String(), st. like this:
byte[] imageArray = System.IO.File.ReadAllBytes(@"image file path");
string base64ImageRepresentation = Convert.ToBase64String(imageArray);
To convert a bas...
Convert InputStream to byte array in Java
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You can use Apache Commons IO to handle this and similar tasks.
The IOUtils type has a static method to read an InputStream and return a byte[].
InputStream is;
byte[] bytes = IOUtils.toByteArray(is);
Internally this creates a ByteArrayOutputStream...
Is char signed or unsigned by default?
In the book "Complete Reference of C" it is mentioned that char is by default unsigned.
7 Answers
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library not found for -lPods
... Aha, in your Podfile, specify the platform like so: platform :ios, :deployment_target => "3.2". That should configure it correctly the next time you run pod install.
– alloy
Apr 5 '12 at 21:54
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Xcode suddenly stopped running project on hardware: “Could not launch xxx.app: .. No such file..” [c
...That is really annoying. This error happens in a number of different situations. Sometimes restarting the Xcode, fixes the problem. If not, follow these steps:
Disconnect your device.
Delete the app from your device.
Quit Xcode (Do not just simply close the window, quit it)
Delete derived dat...
Converting stream of int's to char's in java
...t. He is using Reader's read method: java.sun.com/j2se/1.4.2/docs/api/java/io/Reader.html#read() The question he is asking is how to convert value returned by this method into char.
– Vanuan
May 7 '09 at 21:43
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Is there a UIView resize event?
...ing - Apple does not guarantee KVO works on UIKit classes. Read the discussion with Apple engineer here: When does an associated object get released?
original answer:
You can use key-value observing:
[yourView addObserver:self forKeyPath:@"bounds" options:0 context:nil];
and implement:
- (void...
How to print out more than 20 items (documents) in MongoDB's shell?
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the link is outdated, it contains no such information. Also, can I pass this as an environment variable?
– phil294
Dec 5 '19 at 10:08
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Best way to convert strings to symbols in hash
... you can use:
my_hash.transform_keys(&:to_sym)
Using older Ruby version? Here is a one-liner that will copy the hash into a new one with the keys symbolized:
my_hash = my_hash.inject({}){|memo,(k,v)| memo[k.to_sym] = v; memo}
With Rails you can use:
my_hash.symbolize_keys
my_hash.deep_sym...
Codesign error: Certificate identity appearing twice
.... You will probably see it TWICE!
Select the one with the earliest Expiration date, right click and select DELETE.
Restart Xcode if you haven't.
Works now. :)
Happy Coding.
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