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Android 4.3 Bluetooth Low Energy unstable
...ect and create a fresh instance of gatt on each connect.
Don't forget to call android.bluetooth.BluetoothGatt#close()
Start a new thread inside onLeScan(..) and then connect. Reason: BluetoothDevice#connectGatt(Context context, boolean autoConnect, BluetoothGattCallback callback) always fails, if ...
rreplace - How to replace the last occurrence of an expression in a string?
...than Alex's solution and four times faster than Mark's solution. Thanks to all for your answers!
– Barthelemy
Mar 31 '10 at 20:44
2
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Quickly create a large file on a Linux system
... it is slow for this purpose. In Linux (and other POSIX systems), we have fallocate, which uses the desired space without having to actually writing to it, works with most modern disk based file systems, very fast:
For example:
fallocate -l 10G gentoo_root.img
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Node.js client for a socket.io server
...ocket.io server running and a matching webpage with a socket.io.js client. All works fine.
5 Answers
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Amazon EC2, mysql aborting start because InnoDB: mmap (x bytes) failed; errno 12
... the crash you may need to setup a swap space for your micro instance. Actually performance wise is better to enable swap.
Steps below show how to make a swap space for your Micro instance. I assume you have AWS Account with a Micro instance running.
Run dd if=/dev/zero of=/swapfile bs=1M count=102...
Hidden features of Android development?
...Android that will definitely make your life easier and your apps better.
All the source code for the platform and all the non-Google native apps is available for you to browse, download, borrow, or steal from the Android Open Source project.
Using the resources framework, creating localized versio...
Is there a way to get a collection of all the Models in your Rails app?
Is there a way that you can get a collection of all of the Models in your Rails app?
28 Answers
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How to create a template function within a class? (C++)
... Not exactly true. The definition can be in a cpp file, as long as it is called once for each unique template parameter n-uplet from a non-template function/method after it has been defined.
– Benoît
Jun 9 '09 at 21:13
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What's the difference between “version number” in iTunes Connect, “bundle version”, “bundle version
...
Yes, they are related. They all refer to the version of your application.
iTunes Connect
This is the version number shown in the App Store; This must be a pure version number like 1.2.3
Bundle Version (CFBundleVersion)
This doesn't need to be a pure...
How to get arguments with flags in Bash
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This is the idiom I usually use:
while test $# -gt 0; do
case "$1" in
-h|--help)
echo "$package - attempt to capture frames"
echo " "
echo "$package [options] application [arguments]"
echo " "
echo "options:"
...