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Store a closure as a variable in Swift
...e realized with an optional:
var completionHandler: ((Float)->Void)?
Now the property is automatically initialized to nil ("no value").
In Swift you would use optional binding to check of a the
completion handler has a value
if let handler = completionHandler {
handler(result)
}
or opti...
When does ADT set BuildConfig.DEBUG to false?
...
I'm not sure I know what you mean about "the code"... however, I will say that doing a clean before exporting the APK (as suggested in the accepted answer) made both BuildConfig.DEBUG and com.mypackage.BuildConfig.DEBUG report false as expec...
How to identify all stored procedures referring a particular table
... for testing purpose and there are few sp's which are refreing this table. Now I have have to drop this table as well as identify all sp's which are referring this table. I am facing difficulty to find list of all sp's. Please suggest some query by assuming that the table name is 'x' and database is...
Display back button on action bar
...is way, you don't go back even if you start previous activity again having now one instace of it more and you go always forward and forward until stack overflow happens if you continua long enough. I think Igor's answer is correct you should stop this activity with finish() and let framework get y...
java.net.UnknownHostException: Invalid hostname for server: local
...
What the exception is really saying is that there is no known server with the name "local". My guess is that you're trying to connect to your local computer. Try with the hostname "localhost" instead, or perhaps 127.0.0.1 or ::1 (the last one is IPv6).
From the javadocs:
Throw...
How to zip a whole folder using PHP
...OK)
echo "Failed to write files to zip\n";
$zipArchive->close();
Now documented at: www.php.net/manual/en/ziparchive.addglob.php
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follo...
Set transparent background of an imageview on Android
...the below code for black:
<color name="black">#000000</color>
Now if you want to use opacity then you can use the below code:
<color name="black">#99000000</color>
And the below for opacity code:
100% — FF
95% — F2
90% — E6
85% — D9
80% — CC
75% — BF
70% — B3
...
How to check if an object implements an interface? [duplicate]
...ike this public void doSomething(Serializable serializableObject). You can now pass it any object that implements Serializable but using the serializableObject you only have access to the methods implemented in the object from the Serializable interface.
...
Request failed: unacceptable content-type: text/html using AFNetworking 2.0
...
You will now receive the responseObject as NSData and need to parse the JSON in the success block.
– Cameron Lowell Palmer
May 5 '14 at 11:01
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Create zip file and ignore directory structure
...The ../$(basename $PWD) is the magic that retains the parent directory.
So now unzip my.zip will give a folder containing all your files:
parent-directory
├── file1
├── file2
├── dir1
│ ├── file3
│ ├── file4
Instead of littering the current directory with the u...