大约有 48,000 项符合查询结果（耗时：0.0498秒） [XML]
How to return a result (startActivityForResult) from a TabHost Activity?
...ion e) {
// Empty
}
} else {
mParent.finishFromChild(this);
}
}
So my solution is to set result to the parent activity if present, like that:
Intent data = new Intent();
[...]
if (getParent() == null) {
setResult(Activity.RESULT_OK, data);
} else {
get...
Programmatically saving image to Django ImageField
...s an image off the web and stores it in a model. The important bits are:
from django.core.files import File # you need this somewhere
import urllib
# The following actually resides in a method of my model
result = urllib.urlretrieve(image_url) # image_url is a URL to an image
# self.photo is ...
Why does C++ need a separate header file?
...
You seem to be asking about separating definitions from declarations, although there are other uses for header files.
The answer is that C++ doesn't "need" this. If you mark everything inline (which is automatic anyway for member functions defined in a class definition), the...
Download single files from GitHub
...b.com/downloads/user/repository/filename
Note that the URLs given above, from the links on github.com, will redirect to raw.githubusercontent.com. You should not directly use the URL given by this HTTP 302 redirect because, per RFC 2616: "Since the redirection might be altered on occasion, the cli...
Removing all unused references from a project in Visual Studio projects
...thin various Visual Studio versions to automatically remove all references from a project that were never been used?
14 Ans...
Reading a binary file with python
...o have something to unpack is pretty trivial:
import struct
data = open("from_fortran.bin", "rb").read()
(eight, N) = struct.unpack("@II", data)
This unpacks the first two fields, assuming they start at the very beginning of the file (no padding or extraneous data), and also assuming native byt...
How to send emails from my Android application?
...am developing an application in Android. I don't know how to send an email from the application?
21 Answers
...
How do I check what version of Python is running my script?
...
From the command line (note the capital 'V'):
python -V
This is documented in 'man python'.
From IPython console
!python -V
share
|
...
Handling exceptions from Java ExecutorService tasks
...
From the docs:
Note: When actions are enclosed in
tasks (such as FutureTask) either
explicitly or via methods such as
submit, these task objects catch and
maintain computational exceptions, and
so they do not ca...
How to return a value from __init__ in Python?
...re? Is new implicit in Python? I assumed Python's semantics were different from Java and the other languages that do use this word.
– cs95
Jul 20 '16 at 6:06
1
...