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KIO4_Gradient 拓展：布局中的颜色渐变 - App Inventor 2 中文网 - 清泛IT...
http://kio4.com/appinventor/287_extension_gradiente_color.htm
- 让我们看一下在布局中制作颜色渐变的扩展。- 我们放置一个布局，然后在该扩展的块中插入该布局的名称，放置一个包含所需颜色的列表，以及一个从 1 到 8 的数字，用于表示...
Fragment MyFragment not attached to Activity
I've created a small test app which represents my problem.
I'm using ActionBarSherlock to implement tabs with (Sherlock)Fragments.
...
rails - Devise - Handling - devise_error_messages
...tation. I'll let you know how it goes.
Update
Yep, that works. I created app/helpers/devise_helper.rb and overrode it like so:
module DeviseHelper
def devise_error_messages!
'KABOOM!'
end
end
So knowing this, I can modify the method to display error messages the way I want it to.
To he...
How do I specify the exit code of a console application in .NET?
I have a trivial console application in .NET. It's just a test part of a larger application. I'd like to specify the "exit code" of my console application. How do I do this?
...
Making the Android emulator run faster
...sluggish. For some devices, like the Motorola Droid and the Nexus One, the app runs faster in the actual device than the emulator. This is a problem when testing games and visual effects.
...
Proper SCSS Asset Structure in Rails
So, I have an app/assets/stylesheets/ directory structure that looks something like this:
5 Answers
...
Load local JSON file into variable
... content.json directly, it is invalid JSON. JSON keys and values must be wrapped in double quotes (" not ') unless the value is numeric, boolean, null, or composite (array or object). JSON cannot contain functions or undefined values. Below is your object as valid JSON.
{
"id": "whatever",
"nam...
Android - Using Custom Font
I applied a custom font to a TextView , but it doesn't seems to change the typeface.
21 Answers
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Runtime vs. Compile time
...specially for people without much background in programming languages. To approach this problem, I find it helpful to ask
What invariants does the program satisfy?
What can go wrong in this phase?
If the phase succeeds, what are the postconditions (what do we know)?
What are the inputs and output...
How to resize the iPhone/iPad Simulator?
...or using terminal commands
Close/Quit simulator. (if open)
Open Terminal app (using Spotlight search, Press ⌘ + SPACE to open spotlight search)
Copy following text and paste it next to terminal cursor.
defaults write ~/Library/Preferences/com.apple.iphonesimulator SimulatorWindowLastScale "0.3...