大约有 46,000 项符合查询结果（耗时：0.0581秒） [XML]
Android 1.6: “android.view.WindowManager$BadTokenException: Unable to add window — token null is not
I'm trying to open a dialog window, but every time I try to open it it throws this exception:
16 Answers
...
How to manage startActivityForResult on Android?
In my activity, I'm calling a second activity from the main activity by startActivityForResult . In my second activity, there are some methods that finish this activity (maybe without a result), however, just one of them returns a result.
...
Why does setTimeout() “break” for large millisecond delay values?
...
This is due to setTimeout using a 32 bit int to store the delay so the max value allowed would be
2147483647
if you try
2147483648
you get your problem occurring.
I can only presume this is causing some form of internal exception in the JS Engine and cau...
javascript set a variable if undefined
I know that I can test for a javascript variable and then define it if it is undefined, but is there not some way of saying
...
Adding elements to object
... Code example:
var element = {}, cart = [];
element.id = id;
element.quantity = quantity;
cart.push(element);
If you want cart to be an array of objects in the form { element: { id: 10, quantity: 1} } then perform:
var element = {}, cart = [];
element.id = id;
element.quantity = quantity;
cart.p...
Check play state of AVPlayer
...
To get notification for reaching the end of an item (via Apple):
[[NSNotificationCenter defaultCenter]
addObserver:<self>
selector:@selector(<#The selector name#>)
name:AVPlayerItemDidPlayToEndTimeNotification
object:<#A player it...
Why can't enum's constructor access static fields?
...m's constructor access static fields and methods? This is perfectly valid with a class, but is not allowed with an enum.
5 ...
Understanding $.proxy() in jQuery
...
What it ultimately does is it ensures that the value of this in a function will be the value you desire.
A common example is in a setTimeout that takes place inside a click handler.
Take this:
$('#myElement').click(function() {...
How to remove all debug logging calls before building the release version of an Android app?
...ceprocessing
-optimizationpasses 5
-keep class * extends android.app.Activity
-assumenosideeffects class android.util.Log {
public static *** d(...);
public static *** v(...);
}
So you would save that to a file, then call ProGuard from Ant, passing in your just-compiled JAR and the Androi...
Thread pooling in C++11
...
This is copied from my answer to another very similar post, hope it can help:
1) Start with maximum number of threads a system can support:
int Num_Threads = thread::hardware_concurrency();
2) For an efficient threadpool implementation, once threads are created according to Num_Thread...