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How do I check (at runtime) if one class is a subclass of another?
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issubclass(class, classinfo)
Excerpt:
Return true if class is a subclass (direct, indirect or virtual) of
classinfo.
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git ahead/behind info between master and branch?
...behind locally, you should do a git fetch to make sure you have the latest info from your remote.
The default output of git status tells you how many revisions you are ahead or behind, but usually I find this too verbose:
$ git status
# On branch master
# Your branch and 'origin/master' have diver...
Facebook Android Generate Key Hash
... super.onCreate(savedInstanceState);
try {
PackageInfo info = getPackageManager().getPackageInfo(
"com.facebook.samples.loginhowto",
PackageManager.GET_SIGNATURES);
for (Signature signature : info.signatures) {
...
Transaction isolation levels relation with locks on table
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docs.oracle.com/cd/B12037_01/server.101/b10743/consist.htm Just to add for Oracle : One can set the isolation level of a transaction by using one of these statements at the beginning of a transaction: SET TRANSACTION ISOLATION LEVEL READ COMMITTED; SET TRAN...
'typeid' versus 'typeof' in C++
...word.
typeid is a C++ language operator which returns type identification information at run time. It basically returns a type_info object, which is equality-comparable with other type_info objects.
Note, that the only defined property of the returned type_info object has is its being equality- an...
How to re-raise an exception in nested try/except blocks?
...rm of raise:
try:
something()
except SomeError:
t, v, tb = sys.exc_info()
try:
plan_B()
except AlsoFailsError:
raise t, v, tb
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Should I compile release builds with debug info as “full” or “pdb-only”?
...r a C# project, if you go to Project Properties > Build > Advanced > Debug Info you have three options: none, full, or pdb-only. Based on the answer to this question , I believe I understand some of the differences between full and pdb-only. However, which is more appropriate for a release build?...
How do I log errors and warnings into a file?
...ver an error or warning or whatever you need to log occurs.
For additional information, please refer to the Chapter Error Handling in the PHP Manual
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How to add a TextView to LinearLayout in Android
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try using
LinearLayout linearLayout = (LinearLayout)findViewById(R.id.info);
...
linearLayout.addView(valueTV);
also make sure that the layout params you're creating are LinearLayout.LayoutParams...
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Is it possible to target older iOS versions when using Xcode 4.2 and iOS 5 SDK?
...ings" ==> "iOS Deployment Target" to iOS 4.2.
4) Open the projects *-Info.plist, remove the setting "Required device capabilities" (note it required armv7)
btw I figured this out when I tried to manually add the app via the organizer and it reported:
Can't install application
The In...