大约有 24,990 项符合查询结果（耗时：0.0233秒） [XML]
What is the maximum length of a Push Notification alert text?
What is the maximum length of the alert text of an iOS push notification?
11 Answers
1...
PostgreSQL LIKE query performance variations
...ite a large variation in response times regarding LIKE queries to a particular table in my database. Sometimes I will get results within 200-400 ms (very acceptable) but other times it might take as much as 30 seconds to return results.
...
How to use web-fonts legally? [closed]
I'm a bit confused about the laws applied to web fonts. I know that it's OK to use fonts like Arial, Times Romans, Georgia, etc...I think it's illegal to use other commercial fonts.
Are there websites that provide free fonts? If there are.
...
How to capture UIView to UIImage without loss of quality on retina display
My code works fine for normal devices but creates blurry images on retina devices.
17 Answers
...
How to SSH to a VirtualBox guest externally through a host? [closed]
I have a Ubuntu VM running on my Windows 7 machine. How do I set it up so that I can access the webserver externally through SSH?
...
How to measure elapsed time in Python?
What I want is to start counting time somewhere in my code and then get the passed time, to measure the time it took to execute few function. I think I'm using the timeit module wrong, but the docs are just confusing for me.
...
How to print a string in fixed width?
I have this code (printing the occurrence of the all permutations in a string)
5 Answers
...
On showing dialog i get “Can not perform this action after onSaveInstanceState”
Some users are reporting, if they use the quick action in the notification bar, they are getting a force close.
16 Answers
...
Eclipse - java.lang.ClassNotFoundException
When trying to start my JUnit-Test out of Eclipse, I get a "ClassNotFoundException". When running "mvn test" from console - everything works fine. Also, there are no problems reported in Eclipse.
...
Why can I change value of a constant in javascript
I know that ES6 is not standardized yet, but a lot of browsers currently support const keyword in JS.
7 Answers
...