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Maintain/Save/Restore scroll position when returning to a ListView
...ListView that the user can scroll around before returning to the previous screen. When the user opens this ListView again, I want the list to be scrolled to the same point that it was previously. Any ideas on how to achieve this?
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Stopping scripters from slamming your website
... That might work too, unless the bots just get used to the system and can screen-scrape the email address. My point with the phone call is it actually forces human interaction and requires the user to explain themselves directly with their voice. Bot owners probably don't want to do that.
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How do you truncate all tables in a database using TSQL?
...lick and select Tasks->Generate Scripts (pic 1)
On the "choose Objects" screen, select the "select specific objects" option and check "tables" (pic 2)
on the next screen, select "advanced" and then change the "Script DROP and CREATE" option to "Script DROP and CREATE" (pic 3)
Choose to save scrip...
“Rate This App”-link in Google Play store app on the phone
...d anything else? How does that correspond to an actual link or button on a screen that the user presses? Thanks
– Adreno
May 30 '12 at 14:09
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How to read a single character from the user?
...
"""Gets a single character from standard input. Does not echo to the
screen."""
def __init__(self):
try:
self.impl = _GetchWindows()
except ImportError:
self.impl = _GetchUnix()
def __call__(self): return self.impl()
class _GetchUnix:
def ...
How can I detect the touch event of an UIImageView?
...n use that technique for many cases where you really want some area of the screen to act as a button instead of messing with the Touch stuff.
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使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...re shown below.
Here’s how to implement the rotationSprite app:
On Screen1, there is a Canvas, Canvas1, which contains an ImageSprite (ArrowSprite) that we want to rotate. Label1 will show the Arrow’s heading in text format. Heading 0 points to right. We also add a RotationDetector (MyRo...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...re shown below.
Here’s how to implement the rotationSprite app:
On Screen1, there is a Canvas, Canvas1, which contains an ImageSprite (ArrowSprite) that we want to rotate. Label1 will show the Arrow’s heading in text format. Heading 0 points to right. We also add a RotationDetector (MyRo...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...re shown below.
Here’s how to implement the rotationSprite app:
On Screen1, there is a Canvas, Canvas1, which contains an ImageSprite (ArrowSprite) that we want to rotate. Label1 will show the Arrow’s heading in text format. Heading 0 points to right. We also add a RotationDetector (MyRo...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...re shown below.
Here’s how to implement the rotationSprite app:
On Screen1, there is a Canvas, Canvas1, which contains an ImageSprite (ArrowSprite) that we want to rotate. Label1 will show the Arrow’s heading in text format. Heading 0 points to right. We also add a RotationDetector (MyRo...