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How to rollback a specific migration?
...g about migrations, that explains how and when to use these commands: railsguides.net/polish-rails-migrations
– ka8725
Apr 14 '18 at 1:22
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How to turn off INFO logging in Spark?
I installed Spark using the AWS EC2 guide and I can launch the program fine using the bin/pyspark script to get to the spark prompt and can also do the Quick Start quide successfully.
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How to implement OnFragmentInteractionListener
...ng event callbacks for the Activity" section: http://developer.android.com/guide/components/fragments.html
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What is the difference between onPause() and onStop() of Android Activites?
...hisheng - I agree with your comment. I was just paraphrasing the Activites guide topic: "onPause() is called when the device goes to sleep or when a dialog appears". As this thread makes clear, though, a dialog doesn't necessarily mean that an activity is paused (although it would be for, say, an ac...
Android - Launcher Icon Size
... and from my research XXHDPI is 180x180 not 144. See developer.android.com/guide/practices/screens_support.html. Search on the page for, "180x180 (3.0x) for extra-extra-high-density". However, I've seen 144 a few places.
– 1.21 gigawatts
Jan 25 '15 at 5:13
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How to send parameters from a notification-click to an activity?
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Take a look at this guide (creating a notification) and to samples ApiDemos "StatusBarNotifications" and "NotificationDisplay".
For managing if the activity is already running you have two ways:
Add FLAG_ACTIVITY_SINGLE_TOP flag to the Inten...
Launch custom android application from android browser
Can anybody please guide me regarding how to launch my android application from the android browser?
16 Answers
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How do popular apps authenticate user requests from their mobile app to their server?
...Username and passwords can be safe when placed in SharedPreferences.
Using https in connecting to a server should be good enough as well.
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Understanding PrimeFaces process/update and JSF f:ajax execute/render attributes
...element with the CSS class myClass:
process="@(.myClass :input)"
See:
https://primefaces.github.io/primefaces/8_0/#/core/searchexpression
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Are there any naming convention guidelines for REST APIs? [closed]
When creating REST APIs, are there any guidelines or defacto standards for naming conventions within the API (eg: URL endpoint path components, querystring parameters)? Are camel caps the norm, or underscores? others?
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