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将 App Inventor 2 项目连接到外部传感器 · App Inventor 2 中文网
...A tutorial for using the blocks has can be found here
Ports, Wiring, and API
For reference, the front right motor is port 10, the front left is port 11, the back right is port 12, and the back left is port 13. The ultrasonic sensors have been wired to port 36, and the luminosity sensor is set up ...
Android Gallery on Android 4.4 (KitKat) returns different URI for Intent.ACTION_GET_CONTENT
...omeStreamAsynkTask(originalUri);
}
Probably need
@SuppressLint("NewApi")
for
takePersistableUriPermission
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Are querystring parameters secure in HTTPS (HTTP + SSL)? [duplicate]
...at does mean that, when DigitalOcean, Google or others ask you to put your API key in the query parameter, anyone who can have a read-only access to the logs can forge your ID? Say if anyone at Loggly leaks any info, lots of services would be compromised?
– Adrien
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How to get a complete list of ticker symbols from Yahoo Finance? [closed]
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There is a nice C# wrapper for the Yahoo.Finance API at http://code.google.com/p/yahoo-finance-managed/ that will get you there. Unfortunately there is no direct way to download the ticker list but the following creates the list by iterating through the alphabetical groups:...
How to read/write from/to file using Go?
...mpatible list of all the ways to read and write files in Go.
Because file API has changed recently and most other answers don't work with Go 1. They also miss bufio which is important IMHO.
In the following examples I copy a file by reading from it and writing to the destination file.
Start with ...
How to get the error message from the error code returned by GetLastError()?
After a Windows API call, how can I get the last error message in a textual form?
11 Answers
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Difference between onStart() and onResume()
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This is why I have come to hate the Android API compared to iOS and even WP7... Ive been making a game that runs on all three in C# and I have to say i'm rly disappointed with Google and Android. They seem to be lacking in the Language / API design department. I rly ...
Can I set max_retries for requests.request?
...ke it behave in a manner which is more intuitive for working with a remote API or web server, I would use the above code snippet, which forces retries on statuses 500, 502, 503 and 504, all of which are not uncommon on the web and (possibly) recoverable given a big enough backoff period.
EDITED: Im...
Is there a command like “watch” or “inotifywait” on the Mac?
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fswatch
fswatch is a small program using the Mac OS X FSEvents API to monitor a directory.
When an event about any change to that directory is received, the specified
shell command is executed by /bin/bash
If you're on GNU/Linux,
inotifywatch (part of the
inotify-tools package on most d...
How to unescape HTML character entities in Java?
...unescapeEntities(textValue, strictMode);
And you also get the convenient API for extracting and manipulating data, using the best of DOM, CSS, and jquery-like methods. It's open source and MIT licence.
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