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Programmatically relaunch/recreate an activity?
...l recreate() on your Activity.
However this method causes a flashing black screen to appear during the activity re-creation.
Option 2
finish();
startActivity(getIntent());
No "flashing" black screen here, but you'll see a transition between the old and the new instances with a not-so-pleasant bl...
How to sort mongodb with pymongo
... you can do this
for post in db.posts.find().sort('entities.user_mentions.screen_name',pymongo.ASCENDING):
print post
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Why shouldn't I use mysql_* functions in PHP?
...n die. It will just end the script abruptly and then echo the error to the screen which you usually do NOT want to show to your end users, and let bloody hackers discover your schema. Alternately, the return values of mysql_* functions can often be used in conjunction with mysql_error() to handle er...
App Inventor 2 数学代码块 · App Inventor 2 中文网
...数字，例如 0xd4（等于十进制 212）
进制数字块 ( 0 )
默认表示 10 进制的数字，单击“0”将允许更改数字。点击下拉菜单可以切换 二进制、八进制、十进制、十六进制 数字。
例如，这三个块是等效的：
下拉列表支持：十...
How to set DialogFragment's width and height?
...
Useful in some cases: use the whole screen width: int width = getResources().getDisplayMetrics().widthPixels
– Jonik
Feb 27 '14 at 12:18
6
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Significant new inventions in computing since 1980
...printing part because everyone's
online anyway.
Colour. Seriously. Colour screens made a huge difference to non-geeks'
perception of games & applications.
Suddenly games seemed less like hard
work and more like watching TV, which
opened the doors for Sega, Nintendo,
Atari et al to bring consume...
SensorUtil 传感器工具扩展：在后台和屏幕关闭时保持传感器工作 · App Inv...
... 通知标题 NotificationTitle
通知的标题。
要打开的屏幕 ScreenToOpen
点击通知时打开的目标屏幕。
启动值 StartValue
通过 get start value 传递给打开屏幕的参数。
版本 Version
组件版本标识符。
SDK版本 VersionSDK
运行的 Android S...
Parse JSON in C#
... if I try to write g1.responseData.results I get "results[]" printed to my screen, with everything else printing as their names (e.g. g1.responseData printing "responseData" and g1 printing "GoogleSearchResults").
– Mike B
Aug 2 '09 at 16:53
...
How to create a button programmatically?
...Constraint rather than frame to correctly place the button for each iPhone screen.
Updated code to Swift 3.1:
override func viewDidLoad() {
super.viewDidLoad()
let button = UIButton(frame: CGRect(x: 100, y: 100, width: 100, height: 50))
button.backgroundColor = .green
button.setTitle("Tes...
What is the difference between atan and atan2 in C++?
...eturn negative numbers, so you can't trace things in the 4 directions on a screen just by adding/subtracting its result.
atan2 is intended for the origin to be in the middle, and things can go backwards or down. That's what you'd use in a screen representation, because it DOES matter what direction...