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java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare();
... };
Looper.loop();
}
AsyncTask
AsyncTask allows you to perform asynchronous work on your user interface. It performs the blocking operations in a worker thread and then publishes the results on the UI thread, without requiring you to handle threads and/or handlers yourself.
public ...
Database development mistakes made by application developers [closed]
...r primary keys?
What's the best practice for primary keys in tables?
Which format of primary key would you use in this situation.
Surrogate vs. natural/business keys
Should I have a dedicated primary key field?
This is a somewhat controversial topic on which you won't get universal agreement. Whi...
How do you configure an OpenFileDialog to select folders?
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@SoMoS, and others with the same problem: in file WindowsFormsApplication1.csproj edit line 100 so it matches your setup. In my case I had to change "9.0" to "10.0" (twice) and remove " (x86)" (twice).
– RenniePet
Jul 16 '11 at 1:41
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Multi-line regex support in Vim
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However, it seems that I can't perform lazy matching with this expression, even if I included it in parentheses? Is there any way to do it?
– xji
Sep 8 '16 at 18:07
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Reset local repository branch to be just like remote repository HEAD
...ch:
git reset --hard @{u}
The advantage of specifying @{u} or its verbose form @{upstream} is that the name of the remote repo and branch don't have to be explicitly specified. On Windows or with PowerShell, specify "@{u}" (with double quotes).
Next, as needed, remove untracked files, optionally al...
Android: How can I validate EditText input?
I need to do form input validation on a series of EditTexts. I'm using OnFocusChangeListeners to trigger the validation after the user types into each one, but this doesn't behave as desired for the last EditText.
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Turn off autosuggest for EditText?
...nexus 5) which doesn't have to be true for all devices but gives better performance for some users (it also turns off the ability for speech input)
– Arkadiusz Cieśliński
Nov 21 '15 at 9:45
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How does delete[] know it's an array?
... then why do we need the delete[] syntax at all? Why can't a single delete form be used to handle all deletes?
The answer to this goes back to C++'s roots as a C-compatible language (which it no longer really strives to be.) Stroustrup's philosophy was that the programmer should not have to pay for...
Plotting two variables as lines using ggplot2 on the same graph
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The general approach is to convert the data to long format (using melt() from package reshape or reshape2) or gather()/pivot_longer() from the tidyr package:
library("reshape2")
library("ggplot2")
test_data_long <- melt(test_data, id="date") # convert to long format
ggp...
How to execute raw SQL in Flask-SQLAlchemy app
...r database, but all of the major relational databases support them in some form.
Assuming it's a SELECT query, this will return an iterable of RowProxy objects.
You can access individual columns with a variety of techniques:
for r in result:
print(r[0]) # Access by positional index
print(...