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Concurrent vs serial queues in GCD
...le: you have a block that takes a minute to execute. You add it to a queue from the main thread. Let's look at the four cases.
async - concurrent: the code runs on a background thread. Control returns immediately to the main thread (and UI). The block can't assume that it's the only block running ...
How to dismiss notification after action has been clicked
...e it an id - that is the unique id you can use to access it later (this is from the notification manager:
notify(int id, Notification notification)
To cancel, you would call:
cancel(int id)
with the same id. So, basically, you need to keep track of the id or possibly put the id into a Bundle ...
Standard way to embed version into python package?
...laced after the module docstring but before any import
statements except from __future__ imports.
You should also make sure that the version number conforms to the format described in PEP 440 (PEP 386 a previous version of this standard).
...
How can I determine whether a 2D Point is within a Polygon?
...ay casting. The idea of the algorithm is pretty simple: Draw a virtual ray from anywhere outside the polygon to your point and count how often it hits a side of the polygon. If the number of hits is even, it's outside of the polygon, if it's odd, it's inside.
The winding number algorithm would be...
Initial bytes incorrect after Java AES/CBC decryption
... does). Now, one particular use case may be to have encrypted bytes coming from a String, or be sent as a String (base64 MIME attachment for a Mail...), but that is an issue of encoding bytes, for which there exists hundreds of solutions, totally unrelated to AES/encryption.
– ...
Sending and Receiving SMS and MMS in Android (pre Kit Kat Android 4.4)
....putExtra("address", num);
mmsIntent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(new File(fileString)));
mmsIntent.setType("image/jpeg");
startActivity(Intent.createChooser(mmsIntent, "Send"));
}
I haven't completely figured out how to do things like track the delivery of the message b...
Compiling with cython and mingw produces gcc: error: unrecognized command line option '-mno-cygwin'
...Ignacio. I already tried this solution by myself (to eliminate -mno-cygwin from cygwinccompyler). The error disappeared but then I got a different error with ld. But this is a different question. I will post it tomorrow. Now need some rest... why is so difficult to compile in windows?
...
How do I read all classes from a Java package in the classpath?
... in a Java package. Those classes are in classpath. I need to do this task from a Java program directly. Do you know a simple way to do?
...
Why does Java have transient fields?
...e part of the serialization (which means saved, like to a file) process.
From the Java Language Specification, Java SE 7 Edition, Section 8.3.1.3. transient Fields:
Variables may be marked transient to
indicate that they are not part of the
persistent state of an object.
For example, you...
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.
...