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The apk must be signed with the same certificates as the previous version
I had uploaded my app to Google Play (back when it was called Android Market) some time ago.
11 Answers
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Xcode Project vs. Xcode Workspace - Differences
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I think there are three key items you need to understand regarding project structure: Targets, projects, and workspaces. Targets specify in detail how a product/binary (i.e., an application or library) is built. They include build settings, such as comp...
How do you keep parents of floated elements from collapsing? [duplicate]
Although elements like <div> s normally grow to fit their contents, using the float property can cause a startling problem for CSS newbies: If floated elements have non-floated parent elements, the parent will collapse.
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How to create empty text file from a batch file?
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Sometimes it's relevant; I used to have touch lying around until I got the idea of just copying NUL (or type NUL>file) for the purpose of getting 0-byte files. :-)
– Joey
Mar 4 '09 at 3:47
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“This project is incompatible with the current version of Visual Studio”
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If the message
This project is incompatible with the current version of Visual Studio
is due to an attempt to open a project targeting .Net 4.5, then the "solution" or workaround is to edit the .csproj file and change the TargetFrameworkVersion from "v4.5" to "v4.0". ...
How can I initialize a C# List in the same line I declare it. (IEnumerable string Collection Example
I am writing my testcode and I do not want wo write:
8 Answers
8
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API Versioning for Rails Routes
...s going to blow your mind.
The Rails 3 routing API is super wicked. To write the routes for your API, as per your requirements above, you need just this:
namespace :api do
namespace :v1 do
resources :users
end
namespace :v2 do
resources :users
end
match 'v:api/*path', :to =>...
How to use a link to call JavaScript?
...gt;
or
<a onclick="jsfunction()" href="javascript:void(0);">
Edit:
The above response is really not a good solution, having learned a lot about JS since I initially posted. See EndangeredMassa's answer below for the better approach to solving this problem.
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Java executors: how to be notified, without blocking, when a task completes?
Say I have a queue full of tasks which I need to submit to an executor service. I want them processed one at a time. The simplest way I can think of is to:
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What are bitwise shift (bit-shift) operators and how do they work?
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The bit shifting operators do exactly what their name implies. They shift bits. Here's a brief (or not-so-brief) introduction to the different shift operators.
The Operators
>> is the arithmetic (or signed) right shift o...