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How to show a dialog to confirm that the user wishes to exit an Android Activity?
I've been trying to show a "Do you want to exit?" type of dialog when the user attempts to exit an Activity.
11 Answers
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Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
I've been profiling some of our core math on an Intel Core Duo, and while looking at various approaches to square root I've noticed something odd: using the SSE scalar operations, it is faster to take a reciprocal square root and multiply it to get the sqrt, than it is to use the native sqrt opcode!...
How to catch integer(0)?
Let's say we have a statement that produces integer(0) , e.g.
6 Answers
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How to get the selected index of a RadioGroup in Android
Is there an easy way to get the selected index of a RadioGroup in Android or do I have to use OnCheckedChangeListener to listen for changes and have something that holds the last index selected?
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How do I delete rows in a data frame?
I have a data frame named "mydata" that looks like this this:
8 Answers
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Most underused data visualization [closed]
Histograms and scatterplots are great methods of visualizing data and the relationship between variables, but recently I have been wondering about what visualization techniques I am missing. What do you think is the most underused type of plot?
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How do I update the notification text for a foreground service in Android?
I have a foreground service setup in Android. I would like to update the notification text. I am creating the service as shown below.
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What is the main purpose of setTag() getTag() methods of View?
What is the main purpose of such methods as setTag() and getTag() of View type objects?
7 Answers
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Uri to default sound notification?
I use the Notification.Builder to build a notification.
Now I want to use the default sound notification with:
7 Answers
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Preserve Line Breaks From TextArea When Writing To MySQL
I'm using a textarea to enable users to input comments. However, if the users enters new lines, the new lines don't appear when they are outputted. Is there any way to make the line breaks stay.
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