大约有 31,500 项符合查询结果(耗时:0.0477秒) [XML]

https://stackoverflow.com/ques... 

How to fix 'android.os.NetworkOnMainThreadException'?

...) { this.exception = e; return null; } finally { is.close(); } } protected void onPostExecute(RSSFeed feed) { // TODO: check this.exception // TODO: do something with the feed } } How to execute the task: In MainAct...
https://stackoverflow.com/ques... 

Java 7 language features with Android

...u are using Android Studio, the Java 7 language should be enabled automatically without any patches. Try-with-resource requires API Level 19+, and NIO 2.0 stuff are missing. If you can't use Java 7 features, see @Nuno's answer on how to edit your build.gradle. The following is for historical inte...
https://stackoverflow.com/ques... 

What do (lambda) function closures capture?

...the name and scope of the variable, not the object it's pointing to. Since all the functions in your example are created in the same scope and use the same variable name, they always refer to the same variable. EDIT: Regarding your other question of how to overcome this, there are two ways that com...
https://stackoverflow.com/ques... 

How to make a element expand or contract to its parent container?

...its parent container, in this case a <div> , no matter how big or small that container may be. 5 Answers ...
https://stackoverflow.com/ques... 

How do I base64 encode (decode) in C?

... *output_length = 4 * ((input_length + 2) / 3); char *encoded_data = malloc(*output_length); if (encoded_data == NULL) return NULL; for (int i = 0, j = 0; i < input_length;) { uint32_t octet_a = i < input_length ? (unsigned char)data[i++] : 0; uint32_t octet_b = ...
https://stackoverflow.com/ques... 

Perl flags -pe, -pi, -p, -w, -d, -i, -t?

...eem to be mostly made up of punctuation :-) The command line switches are all detailed in perlrun. (available from the command line by calling perldoc perlrun) Going into the options briefly, one-by-one: -p: Places a printing loop around your command so that it acts on each line of standard ...
https://stackoverflow.com/ques... 

CodeIgniter: Create new helper?

...o it. <?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); if ( ! function_exists('test_method')) { function test_method($var = '') { return $var; } } Save this to application/helpers/ . We shall call it "new_helper.php" The first line exists to ...
https://stackoverflow.com/ques... 

What's the best way to store Phone number in Django models

... You might actually look into the internationally standardized format E.164, recommended by Twilio for example (who have a service and an API for sending SMS or phone-calls via REST requests). This is likely to be the most universal way t...
https://stackoverflow.com/ques... 

Broken references in Virtualenvs

I recently installed a bunch of dotfiles on my Mac along with some other applications (I changed to iTerm instead of Terminal, and Sublime as my default text editor) but ever since, all my virtual environments have stopped working, although their folders inside .virtualenvs are still there and they ...
https://stackoverflow.com/ques... 

How to delete an old/unused Data Model Version in Xcode

...d the .xcdatamodeld file to your project This eliminates the need to manually modify any of the project metadata files. share | improve this answer | follow ...