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Passing Data between View Controllers
...ndViewController.delegate = self
}
}
func userDidEnterInformation(info: String) {
label.text = info
}
}
Note the use of our custom DataEnteredDelegate protocol.
Second View Controller and Protocol
The code for the second view controller is
import UIKit
// protocol ...
Yank entire file
...
stackoverflow.com/a/829944/6723250 has the same info with some more details
– Xerus
Jun 16 at 21:38
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How to check if a python module exists without importing it
...lse
To find dotted imports, you need to do more:
import imp
try:
spam_info = imp.find_module('spam')
spam = imp.load_module('spam', *spam_info)
imp.find_module('eggs', spam.__path__) # __path__ is already a list
found = True
except ImportError:
found = False
You can also use pk...
How to convert array to SimpleXML
...)
)
generated XML would be as:
<?xml version="1.0"?>
<student_info>
<total_stud>500</total_stud>
<student>
<id>1</id>
<name>abc</name>
<address>
<city>Pune</city>
<z...
To prevent a memory leak, the JDBC Driver has been forcibly unregistered
...ot auto-deregister itself during webapp's shutdown. This message is purely informal, Tomcat has already taken the memory leak prevention action accordingly.
What can you do?
Ignore those warnings. Tomcat is doing its job right. The actual bug is in someone else's code (the JDBC driver in question...
How do I remove the old history from a git repository?
...ot commit of your repository). E.g. echo "<NEW-ROOT-SHA1>" > .git/info/grafts
After creating the graft, it takes effect right away; you should be able to look at git log and see that the unwanted old commits have gone away:
$ echo 4a46bc886318679d8b15e05aea40b83ff6c3bd47 > .git/info/gr...
How to check internet access on Android? InetAddress never times out
...n other situations where there's no available network), cm.getActiveNetworkInfo() will be null, so you need to add a null check.
Modified (Eddie's solution) below:
public boolean isOnline() {
ConnectivityManager cm =
(ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);...
Broadcast receiver for checking internet connection in android app
...gt;.
It will respond to only one action instead of two. See here for more information.
Answer to your second question (you want receiver to call only one time if internet connection available):
Your code is perfect; you notify only when internet is available.
UPDATE
You can use this method to c...
Permission denied (publickey) when deploying heroku code. fatal: The remote end hung up unexpectedly
...e an ssh public key already made. help.github.com/mac-set-up-git for more info on doing so with mac.
– Ryan
Dec 28 '11 at 0:08
92
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Create directories using make file
...
This is better: $(info $(shell mkdir -p $(DIRS))) Without the $(info ...), the output of the mkdir command will be pasted into the Makefile, leading to syntax errors at best. The $(info ...) call ensures that a) the errors (if any) are visible...