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What does “Receiver type 'CALayer' for instance message is a forward declaration” mean here?
I'm porting a block of code from an iOS4 project to iOS5 and I'm having some troubles with ARC. The code generates a PDF from a screen capture.
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Does Java SE 8 have Pairs or Tuples?
I am playing around with lazy functional operations in Java SE 8, and I want to map an index i to a pair / tuple (i, value[i]) , then filter based on the second value[i] element, and finally output just the indices.
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GitHub “fatal: remote origin already exists”
... git remote set-url origin git@github.com:ppreyer/first_app.git
Long version:
As the error message indicates, there is already a remote configured with the same name. So you can either add the new remote with a different name or update the existing one if you don't need it:
To add a new remote, ...
Set padding for UITextField with UITextBorderStyleNone
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I found a neat little hack to set the left padding for this exact situation.
Basically, you set the leftView property of the UITextField to be an empty view of the size of the padding you want:
UIView *paddingView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 5, 20)];
textField.leftView = p...
How to encrypt String in Java
...ows up via Google and the security
vulnerabilities in all the implementations make me cringe so I'm
posting this to add information regarding encryption for others as it
has been 7 Years from the original post. I hold a Masters Degree in
Computer Engineering and spent a lot of time studying ...
Getting full JS autocompletion under Sublime Text
... set View > Syntax > JavaScript > JavaScript , I only see suggestions based on what I have previously typed. I even installed the SublimeCodeIntel plug-in , to no avail.
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Error: Can't set headers after they are sent to the client
...body
var doesNotModifyBody = function(request, response, next) {
request.params = {
a: "b"
};
// calls next because it hasn't modified the header
next();
};
// middleware that modify the response body
var doesModifyBody = function(request, response, next) {
response.setHeader("Content...
Difference between framework and static library in xcode4, and how to call them
I am quite new to xcode and objective-c. I want to ask a very basic question.
2 Answers
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Initial bytes incorrect after Java AES/CBC decryption
...download_codec.cgi
import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;
public class Encryptor {
public static String encrypt(String key, String initVector, String value) {
try {
...
Best way to select random rows PostgreSQL
...maller than id_span, the query will outperform other approaches.
WITH params AS (
SELECT 1 AS min_id -- minimum id <= current min id
, 5100000 AS id_span -- rounded up. (max_id - min_id + buffer)
)
SELECT *
FROM (
SELECT p.min_id + trunc(random(...