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app-release-unsigned.apk is not signed
I downloaded the zip file of an Android app on github and I'm trying to run it, but I get a dialog with this message
17 Ans...
Change type of varchar field to integer: “cannot be cast automatically to type integer”
I have a small table and a certain field contains the type " character varying ". I'm trying to change it to " Integer " but it gives an error that casting is not possible.
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How to get screen dimensions as pixels in Android
I created some custom elements, and I want to programmatically place them to the upper right corner ( n pixels from the top edge and m pixels from the right edge). Therefore I need to get the screen width and screen height and then set position:
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How can I create a “Please Wait, Loading…” animation using jQuery?
...relation to the viewport window
with position:fixed. Width, height, top and left speak
for themselves. Background we set to 80% white with
our animation centered, and no-repeating */
.modal {
display: none;
position: fixed;
z-index: 1000;
top: 0;
left: ...
Django gives Bad Request (400) when DEBUG = False
... I change DEBUG to False in the settings file, then the server stopped and it gives the following error on the command prompt:
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How do I parse an ISO 8601-formatted date?
...atetime strings like the one in the question, but also other ISO 8601 date and time strings that don't comply with RFC 3339 (such as ones with no UTC offset, or ones that represent only a date).
>>> import dateutil.parser
>>> dateutil.parser.isoparse('2008-09-03T20:56:35.450686Z'...
Android Studio: Add jar as library?
I'm trying to use the new Android Studio but I can't seem to get it working correctly.
34 Answers
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How to convert floats to human-readable fractions?
...y what you are asking for. Its based on the theory of continued fractions and very fast and fairly compact.
I have used versions of this customized for specific numerator and denominator limits.
/*
** find rational approximation to given real number
** David Eppstein / UC Irvine / 8 Aug 1993
**
*...
How can I get the current date and time in UTC or GMT in Java?
...the current time but in the local timezone. How can I get the current date and time in GMT?
31 Answers
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How to delete a whole folder and content?
...tion to be able to delete the DCIM folder (which is located on the SD card and contains subfolders).
23 Answers
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