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Formula px to dp, dp to px android
...olved my problem by using the following formulas. May other people benefit from it.
dp to px:
displayMetrics = context.getResources().getDisplayMetrics();
return (int)((dp * displayMetrics.density) + 0.5);
px to dp:
displayMetrics = context.getResources().getDisplayMetrics();
return (int) ((px/...
Can git ignore a specific line?
...I ended up putting my sed-calls in a separate helper.sh file that I called from my gitconfig with sh ".git/helper.sh" making sure to pass through any parameters to sed with "$@" (I assume just the filepath is passed).
– ohaal
Jun 26 '18 at 14:57
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GCD to perform task in main thread
I have a callback which might come from any thread. When I get this callback, then I would like to perform a certain task on the main thread.
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What is array to pointer decay?
... college. I'm sure anyone who's interested can get a more accurate picture from your upvoted comment.
– system PAUSE
Sep 23 '09 at 15:17
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Why do I need to override the equals and hashCode methods in Java?
... the general contract for Object.hashCode(), which will prevent your class from functioning properly in conjunction with all hash-based collections, including HashMap, HashSet, and Hashtable.
Let's try to understand it with an example of what would happen if we override equals() without overriding ...
If threads share the same PID, how can they be identified?
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The four threads will have the same PID but only when viewed from above. What you (as a user) call a PID is not what the kernel (looking from below) calls a PID.
In the kernel, each thread has it's own ID, called a PID (although it would possibly make more sense to call this a TID, or...
Android Studio rendering problems
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I was able to fix this in Android Studio 0.2.0 by changing API from API 18: Android 4.3 to API 17: Android 4.2.2
This is under the Android icon menu in the top right of the design window.
This was a solution from http://www.hankcs.com/program/mobiledev/idea-this-version-of-the-render...
When exactly are onSaveInstanceState() and onRestoreInstanceState() called?
The following figure (from the official doc ) describes the well-known lifecycle of an Android activity:
5 Answers
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How can you find the height of text on an HTML canvas?
...of this working, I used this technique in the Carota editor.
Following on from ellisbben's answer, here is an enhanced version to get the ascent and descent from the baseline, i.e. same as tmAscent and tmDescent returned by Win32's GetTextMetric API. This is needed if you want to do a word-wrapped ...
Set up git to pull and push all branches
...d to use second last (i.e. push master first) command while cloning a repo from Atlassian Stash to AWS CodeCommit (blank repo). I am not sure the reason, but after pushing (git push new-origin --mirror) default branch was referring to some other branch than master.
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