大约有 15,000 项符合查询结果(耗时:0.0368秒) [XML]

https://stackoverflow.com/ques... 

Load dimension value from res/values/dimension.xml from source code

...multiplied times the screen density factor (1.5 for hdpi, 2.0 for xhdpi, etc). I think it is good to get the value as per resolution but if you not want to do this give this in px....... Density-independent pixel (dp) A virtual pixel unit that you should use when defining UI layout, to express...
https://stackoverflow.com/ques... 

Does Python support short-circuiting?

... it's not just 0, it's 0.0, 0j, decimal.Decimal(0), fractions.Fraction(0), etc.), as are all collections with length 0 (so on top of what you listed, b'' [Py3], u'' [Py2] and set()/frozenset() are all built-ins that evaluate as falsy), but user-defined/third-party types can define their own (with __...
https://stackoverflow.com/ques... 

Android studio - Failed to find target android-18

...ets'] } // Move the tests to tests/java, tests/res, etc... instrumentTest.setRoot('tests') // Move the build types to build-types/<type> // For instance, build-types/debug/java, build-types/debug/AndroidManifest.xml, .. // This...
https://stackoverflow.com/ques... 

$_POST vs. $_SERVER['REQUEST_METHOD'] == 'POST'

... // log or don't log request, // redirect to avoid resubmition on F5 etc } If your application needs to react on any data received through post request, use this: if(!empty($_POST)) { // if received any post data // process $_POST values, // save data to DB, // ... } if(!empty(...
https://stackoverflow.com/ques... 

Change font color for comments in vim

...LightBlue Add this to your .vimrc file which is either in your ~ or the /etc/vim directory. This will make it permanent. I haven't tested this with gvim. I also have set background=light before I set comment color. I like all the colors it created except for the comments. ...
https://stackoverflow.com/ques... 

Client on node: Uncaught ReferenceError: require is not defined

... This is my personal favorite. Webpack - Does everything (bundles JS, CSS, etc). Made popular by the surge of React.js. Notorious for its difficult learning curve. Rollup - New contender. Leverages ES6 modules. Includes tree-shaking abilities (removes unused code). You can read more about my compa...
https://stackoverflow.com/ques... 

What's the use/meaning of the @ character in variable names in C#?

...ou to use reserved keywords for variable name. like @int, @string, @double etc. For example: string @public = "Reserved Keyword used for me and its fine"; The above code works fine, but below will not work: string public = "This will not compile"; ...
https://stackoverflow.com/ques... 

PHP - how to create a newline character?

...s likely that he is outputing this data to either a textbox or javascript, etc. for parsing or plain text reading not to be rendered as HTML – PC3TJ Nov 7 '15 at 4:29 add a co...
https://stackoverflow.com/ques... 

Deserializing a JSON into a JavaScript object

... or Map() objects etc, how do you do proper deserialisation – Ewan Mar 18 at 11:36 add a comment  |...
https://stackoverflow.com/ques... 

Add a default value to a column through a migration

... states are usually explicit, such as the presence of a column, it's type, etc. The change can be rolled back as it's shown there if and only if there was a valid explicit default previously. Since it's common that defaults are undefined, you might have an issue there. – Elindo...