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Package doesn't exist error in intelliJ
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I tried to "Maven > Reimport" but the only thing that actually fixed it was to close the project, delete the .idea directory, and reopen the project.
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On logout, clear Activity history stack, preventing “back” button from opening logged-in-only Activi
All activities in my application require a user to be logged-in to view. Users can log out from almost any activity. This is a requirement of the application. At any point if the user logs-out, I want to send the user to the Login Activity . At this point I want this activity to be at the bottom of...
PostgreSQL: Show tables in PostgreSQL
...terface,
First, choose your database
\c database_name
Then, this shows all tables in the current schema:
\dt
Programmatically (or from the psql interface too, of course):
SELECT * FROM pg_catalog.pg_tables;
The system tables live in the pg_catalog database.
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Codesign error: Certificate identity appearing twice
...same problem.
It has been fixed.
It came after I submitted an app and installed a few certificates to sign the app.
Quick Fix:
Open up KEYCHAIN ACCESS > click on MY CERTIFICATES> in there you will probably see
iPhone Developer: . You will probably see it TWICE!
Select the one with the earl...
What do helper and helper_method do?
helper_method is straightforward: it makes some or all of the controller's methods available to the view.
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Why it's not possible to use regex to parse HTML/XML: a formal explanation in layman's terms
...omaton has no memory - no stack, no heap, no infinite tape to scribble on. All it has is a finite number of internal states, each of which can read a unit of input from the string being tested, and use that to decide which state to move to next. As special cases, it has two termination states: "yes,...
How do I find all of the symlinks in a directory tree?
I'm trying to find all of the symlinks within a directory tree for my website. I know that I can use find to do this but I can't figure out how to recursively check the directories.
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What is android:weightSum in android, and how does it work?
...e maximum weight sum, and is calculated as the sum of the layout_weight of all the children if not specified explicitly.
Let's consider an example with a LinearLayout with horizontal orientation and 3 ImageViews inside it. Now we want these ImageViews always to take equal space. To acheive this, yo...
How to grep and replace
I need to recursively search for a specified string within all files and subdirectories within a directory and replace this string with another string.
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Why do you have to link the math library in C?
...es libm, so if you compile a C++ program with GCC (g++), you will automatically get libm linked in.
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