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What's the best way to share data between activities?
...elds
HashMap of WeakReferences
Persist objects (sqlite, share preferences, file, etc.)
TL;DR: there are two ways of sharing data: passing data in the intent's extras or saving it somewhere else. If data is primitives, Strings or user-defined objects: send it as part of the intent extras (user-defi...
Why does one use dependency injection?
...nch of loggers: Sometimes you want to log to the console, sometimes to the file system, sometimes using TCP/IP and a remote logging server, and so on ...
And of course you do NOT want to change all your code (meanwhile you have gazillions of it) and replace all lines
var logger = new Logger();
b...
Why doesn't print work in a lambda?
...ssign the result of print to a variable:
>>> x = print "hello"
File "<stdin>", line 1
x = print "hello"
^
SyntaxError: invalid syntax
You also can't put a variable assignment in a lambda, since assignments are statements:
>>> lambda y: (x = y)
File "&l...
Printing the value of a variable in SQL Developer
... 1.5.5, I don't seem to have that option under View. There's Connections, Files, Reports... Status Bar, Toolbars, Refresh, but no DBMS Output. Lots of stuff under preferences, but I still don't see an option for output.
– ruffin
Sep 11 '12 at 22:15
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iPhone App 开发第一步：从零到真机调试HelloWorld - 更多技术 - 清泛网 - ...
...RX59oyw&t=1340183926&u=1034306809-4fe18e0d3f6b71340182029-bl9i4xuo&s=51200&file=darwin_snow_legacy.iso.zip
Rebel EFI.iso：thunder://QUFodHRwOi8vZG93bmxvYWRzLml0bW9wLmNvbS9zeXN0ZW0vc3lzdGVtcXQvUmViZWwuRUZJK2Rhcndpbi56aXBaWg==
Mac OSX 系统10.6.7（或更高）Combo升级包：苹果官...
Controlling the screenshot in the iOS 7 multitasking switcher
...t, it appears that the screen snapshot is still taken and I have therefore filed a bug report. But you should test further and see if using this setting helps.
If this was an enterprise app, you might also want to look into the appropriate setting of allowScreenShot outlined in the Restrictions Pay...
How do I remove/delete a virtualenv?
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If you've created a virtualenv in a git repo (and the files are not ignored): git clean -dffx
– Rex Hardin
Feb 22 '18 at 3:35
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Multi-gradient shapes
...y sure that could be inlined into the layer-list XML, obviating this extra file, but I'm not sure how. But okay, then the kind of hacky part comes in on the layer_list XML file. I put the green gradient as the bottom layer, then put the half overlay as the second layer, offset from the top by 50dp. ...
Is there a difference between authentication and authorization?
...thorization deals with what an authenticated entity is allowed to do (e.g. file permissions).
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Exit a Script On Error
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In context:
if jarsigner -verbose -keystore $keyst -keystore $pass $jar_file $kalias
then
echo $jar_file signed sucessfully
else
echo ERROR: Failed to sign $jar_file. Please recheck the variables 1>&2
exit 1 # terminate and indicate error
fi
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