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C# using streams
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@user420667. good question. In both the AudioStream and TemperatureStream cases, they most likely would be BinaryStreams to the driver that is associated with the device. Or, you could create a CustomStream that's built specifically for the interface.
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Can't create handler inside thread that has not called Looper.prepare()
...e calling it from a worker thread. You need to call Toast.makeText() (and most other functions dealing with the UI) from within the main thread. You could use a handler, for example.
Look up Communicating with the UI Thread in the documentation. In a nutshell:
// Set this up in the UI thread.
mHa...
setting an environment variable in virtualenv
... highly recommend doing so), you can define different hooks (preactivate, postactivate, predeactivate, postdeactivate) using the scripts with the same names in $VIRTUAL_ENV/bin/. You need the postactivate hook.
$ workon myvenv
$ cat $VIRTUAL_ENV/bin/postactivate
#!/bin/bash
# This hook is run after...
'sudo gem install' or 'gem install' and gem locations
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Contrary to all the other posts I suggest NOT using sudo when installing gems.
Instead I recommend you install RVM and start a happy life with portable gem homes and different version of Ruby all living under one roof.
For the uninitiated, from the d...
error opening HPROF file: IOException: Unknown HPROF Version
...s android specific format. You should convert hprof file take from Android OS into standard hprof format. For this you can use hprof-conv tool that is located at AndroidSDK/tools/hprof-conv.
For example:
hprof-conv android.hprof mat.hprof
And then open mat.hprof in Memory Analyzer.
EDIT: hprof...
Threading pool similar to the multiprocessing Pool?
...ssing.dummy which is mentioned briefly in the docs. This dummy module supposedly provides the whole multiprocessing interface based on threads.
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Fast check for NaN in NumPy
...e of NaNs than in their absence. It also seems to get slower as NaNs get closer to the start of the array. On the other hand, sum's throughput seems constant regardless of whether there are NaNs and where they're located:
In [40]: x = np.random.rand(100000)
In [41]: %timeit np.isnan(np.min(x))
100...
Arduino Sketch upload issue - avrdude: stk500_recv(): programmer is not responding
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I had this problem with a Crowduino, running the Arduino IDE on OS X. The solution for me was to switch on verbose output during upload (in the Arduino IDE preferences pane).
Then, when uploading, you can see AVRDUDE sending three packets avrdude: Send: 0 [30] [20] (with corresponding...
How to use setArguments() and getArguments() methods in Fragments?
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android.os.Bundle doesn't have setString. Do you mean putString() ?
– Stealth Rabbi
Nov 11 '19 at 15:37
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Vagrant error : Failed to mount folders in Linux guest
...e. After I did this then the guests VboxAdditions updated, and matched my host. And all we fine without a hitch. I just have to maintain equal versions on both guest and host. Thanks for the pointer @karlingen
– Rixhers Ajazi
Jun 6 '14 at 17:31
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