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使用App Inventor扩展实现多点触控：Rotation Detector 旋转检测 · App Inventor 2 中文网
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How can I get device ID for Admob
...ads on an emulator then there is no ID. just use the AdManager method and set it to TEST_EMULATOR like the logcat says. If you run on an actual device with usb debugging and watch the logcat, the ID will appear in there.
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Can table columns with a Foreign Key be NULL?
...ms like a problem if you want to know later whether a value was originally set as "default" (by using null) or set to a value that happens to be the same as "default". By having a row with a null id, you can clearly indicate that this row is not to be used as a normal row, and can use the row as a w...
In eclipse, unable to reference an android library project in another android project
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A circular reference was detected while serializing an object of type 'SubSonic.Schema .DatabaseColu
...nConvert.SerializeObject(model,
Formatting.None,
new JsonSerializerSettings() {
ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore
});
return Content(list, "application/json");
share
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How to access the correct `this` inside a callback?
...tage that you can access the this value of the callback itself.
Explicitly set this of the callback - part 1
It might look like you have no control over the value of this because its value is set automatically, but that is actually not the case.
Every function has the method .bind [docs], which retu...
Cancel a UIView animation?
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The way I do it is to create a new animation to your end point. Set a very short duration and make sure you use the +setAnimationBeginsFromCurrentState: method to start from the current state. When you set it to YES, the current animation is cut short. Looks something like this:
[UIView ...
Bind TextBox on Enter-key press
...);
static InputBindingsManager()
{
}
public static void SetUpdatePropertySourceWhenEnterPressed(DependencyObject dp, DependencyProperty value)
{
dp.SetValue(UpdatePropertySourceWhenEnterPressedProperty, value);
}
public static DependencyProperty GetUpdatePrope...
Change name of iPhone app in Xcode 4
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In Xcode 4, select your target, "Info" tab, and set the "Bundle display name" field to the name you want (i.e. "MySuperApp"). This is the simplest, pain-free solution.
All other answers described here do not address the original posted issue: "I want to change the name w...
pip issue installing almost any library
I have a difficult time using pip to install almost anything. I'm new to coding, so I thought maybe this is something I've been doing wrong and have opted out to easy_install to get most of what I needed done, which has generally worked. However, now I'm trying to download the nltk library, and neit...