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How do I make this file.sh executable via double click?
First off I'm using Mac.
5 Answers
5
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Call an activity method from a fragment
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For the opposite side communication please see:developer.android.com/training/basics/fragments/…. Using the fragment's interface(which is also the safe way to do fragment->activity comm as explained above) you can call a method that's in your fragment from your activity as wel...
NSOperation vs Grand Central Dispatch
...ere I noticed overhead from using NSOperations, and I've seen this on both Mac and iOS.
Second, there's an elegance to block-based dispatch code that is hard to match when using NSOperations. It's so incredibly convenient to wrap a few lines of code in a block and dispatch it to be performed on a s...
How do I use vi keys in ipython under *nix?
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You can also interactively switch between Vi-mode and Emacs mode. According to the the readline docs to switch between them you are supposed to be able to use the M-C-j key combination but that only seems to allow me to switch to vi-mode - on my Mac (where ESC is used as the 'Met...
How to write to a file in Scala?
...ing, not to force everyone to specify it all the time. But if you're on a Mac and your files written by Java are gobbledygook because they aren't Mac OS Roman encoded, I'm not sure it's doing more good than harm. I think it's the platforms' fault that they haven't agreed on a charset. As an indiv...
How can I get the count of milliseconds since midnight for the current?
...time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport.
Android
The ThreeTenABP project adapts ThreeTen-Backport (mentioned above) for Android specifically.
See How to use ThreeTenABP….
The ThreeTen-Extra project extends java.time with additional classes. This project is a ...
Converting pixels to dp
...I would recommand DisplayMetrics.DENSITY_DEFAULT instead of 160f developer.android.com/reference/android/util/…
– milcaepsilon
Jan 18 '16 at 13:56
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Is it bad to have my virtualenv directory inside my git repository?
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If you, say pip install mysql-python, on a 64 bit machine, and then someone with a 32 bit machine tries to use it, it will not work. It uses a C module, like many Python modules do, to increase performance. I imagine Windows->Linux would also not work.
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Match whitespace but not newlines
... both \r and \n in the pattern correctly handles all of Unix (LF), classic Mac OS (CR), and DOS-ish (CR LF) newline conventions.
No need to take my word for it:
#! /usr/bin/env perl
use strict;
use warnings;
use 5.005; # for qr//
my $ws_not_crlf = qr/[^\S\r\n]/;
for (' ', '\f', '\t', '\r', ...
LEGO EV3 机器人按键控制 · App Inventor 2 中文网
...规格
开发平台：MIT App Inventor
目标设备：Android智能手机
通信协议：Bluetooth Classic
硬件要求：LEGO Mindstorms EV3
最小系统版本：Android 4.4+（蓝牙支持）
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功能增强
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