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Nested fragments disappear during transition animation
...that still allows for custom transition animations on child fragments, and doesn't require doing a bitmap cache of the layout.
Have a BaseFragment class that extends Fragment, and make all of your fragments extend that class (not just child fragments).
In that BaseFragment class, add the followin...
Why use def main()? [duplicate]
...ther file : import foo
In this case __name__ is foo, the code section does not get executed and does not print XXXX.
executed directly : python foo.py
When it is executed directly, __name__ is same as __main__ and the code in that section is executed and prints XXXX
One of the use ...
How to read a text file into a string variable and strip newlines?
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Yes, your version does not explicitly close the file, that will then be delayed until the garbage collector runs or the program terminates. The 'with' statement usually encapsulates some setup/teardown open/close actions.
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Will strlen be calculated multiple times if used in a loop condition?
...late it every time, but I don't think you can be sure, that every compiler does it.
In addition to that, the compiler has to know, that strlen(ss) does not change. This is only true if ss is not changed in for loop.
For example, if you use a read-only function on ss in for loop but don't declare...
Difference between Convert.ToString() and .ToString()
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Convert.ToString() handles null, while ToString() doesn't.
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How to check if an email address exists without sending an email?
... rejected.
MAIL FROM:<>
RCPT TO:<user@domain>
If the user doesn't exist, you'll get a 5.1.1 DSN. However, just because the email is not rejected, does not mean the user exists. Some server will silently discard requests like this to prevent enumeration of their users. Other servers ...
Separation of business logic and data access in django
...combines multiple closely related aspects:
execution of the command (what does it do?)
validation of the command parameters (can it do this?)
presentation of the command (how can I do this?)
forms.py
class ActivateUserForm(forms.Form):
user_id = IntegerField(widget = UsernameSelectWidget, ver...
Why do we not have a virtual constructor in C++?
Why does C++ not have a virtual constructor?
22 Answers
22
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How to stop Gradle task execution in Android Studio?
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that does not help in case the gradle is hanging up, only killing the process of Android Studio and then restarting it helps
– Alexey Timokhin
Aug 11 '17 at 16:55
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How do I get the dialer to open with phone number displayed?
...legalStateException: Could not execute method of the activity.
Action_Dial doesn't require any permission.
If you want to initiate the call directly without user's interaction , You can use action Intent.ACTION_CALL. In this case, you must add the following permission in your AndroidManifest.xml:
&l...