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Store a closure as a variable in Swift
...
The compiler complains on
var completionHandler: (Float)->Void = {}
because the right-hand side is not a closure of the appropriate signature, i.e. a closure taking
a float argument. The following would assign a "do nothing" closure to the
completion handler:
var completionHandler:...
Load dimension value from res/values/dimension.xml from source code
...actly as docs state :
Retrieve a dimensional for a particular resource ID. Unit conversions
are based on the current DisplayMetrics associated with the resources.
so if you want exact dp value just as in xml just divide it with DisplayMetrics density
int dp = (int) (getResources().getDimens...
how to find host name from IP with out login to the host
...;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12770
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1460
;; QUESTION SECTION:
;34.34.51.72.in-addr.arpa. IN PTR
;; ANSWER SECTION:
...
How can I use Guzzle to send a POST request in JSON?
... @MichalGallovic It is the same. The purpose to use the constant is to avoid typos. Using a constant that does not exists will raise an error, but sending a useless option (as jsson for example) won't raise any error, and you may take some time to find your typo.
– zessx
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How to get the changes on a branch in Git
......B syntax to mean how it's defined in the git-diff manpage. If git-diff did not explicitly define A...B, then that syntax would be invalid. Note that the git-rev-parse manpage describes A...B in the "Specifying Ranges" section, and everything in that section is only valid in situations where a rev...
Deserializing a JSON into a JavaScript object
...tpRequest,
communication is permitted only to the same origin that
provide that page, so it is trusted.
But it might not be competent.
If the server is not rigorous in its JSON encoding,
or if it does not scrupulously validate all of its inputs,
then it could deliver invalid JSON text th...
Android - Package Name convention
For the "Hello World" example in android.com , the package name is
"package com.example.helloandroid;"
6 Answers
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How to set a default value with Html.TextBoxFor?
...e Html.TextBoxFor method, my first guess was to try the following which did not work:
12 Answers
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Error:(1, 0) Plugin with id 'com.android.application' not found
This is my first attempt at Android Studio. I installed 0.8.0 and updated to 0.8.2. As soon as a project is created I get the error message:
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IllegalStateException: Can not perform this action after onSaveInstanceState with ViewPager
...
Please check my answer here. Basically I just had to :
@Override
protected void onSaveInstanceState(Bundle outState) {
//No call for super(). Bug on API Level > 11.
}
Don't make the call to super() on the saveInstanceState method. This was messing things up...
This is a known...