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What causes java.lang.IncompatibleClassChangeError?
...y throw the exception.
This is a complete list of changes in Java library API that may cause clients built with an old version of the library to throw java.lang.IncompatibleClassChangeError if they run on a new one (i.e. breaking BC):
Non-final field become static,
Non-constant field become non-s...
What's the difference between a word and byte?
...as the same length as a pointer, this way abstracting these details.
Some APIs might confuse you though, such as Win32 API, because it has types such as WORD (16 bits) and DWORD (32 bits). The reason is that the API was initially targeting 16 bit machines, then was ported to 32 bit machines, then t...
Show and hide a View with a slide up/down animation
...
With the new animation API that was introduced in Android 3.0 (Honeycomb) it is very simple to create such animations.
Sliding a View down by a distance:
view.animate().translationY(distance);
You can later slide the View back to its original p...
Should accessing SharedPreferences be done off the UI Thread?
...the release of Gingerbread, I have been experimenting with some of the new API's, one of them being StrictMode .
6 Answers...
ASP.NET MVC Controller Naming Pluralization
...For example, a UsersController makes sense if you design your routes like /api/users (all users) and /api/users/{userId} (single user)
– Levi Fuller
Mar 1 '18 at 23:14
...
“CAUTION: provisional headers are shown” in Chrome debugger
...nning a full js stack, angular front end and node back end on SSL, and the API is on a different domain running on port 8081, so I am doing CORS requests and withCredentials as I am dropping a session cookie from the API
So specifically my scenario was: POST request, withCredentials to port 8081 ca...
Is there a Newline constant defined in Java like Environment.Newline in C#?
...
As of Java 7 (and Android API level 19):
System.lineSeparator()
Documentation: Java Platform SE 7
For older versions of Java, use:
System.getProperty("line.separator");
See https://java.sun.com/docs/books/tutorial/essential/environment/syspro...
Is it better to return null or empty collection?
...
yup, that's what you follow. But in cases that APIs you rely on don't follow it, you are 'trapped' ;)
– Bozho
Dec 28 '09 at 16:11
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Android gradle: buildtoolsVersion vs compileSdkVersion
...
compileSdkVersion is the API version of Android that you compile against.
buildToolsVersion is the version of the compilers (aapt, dx, renderscript compiler, etc...) that you want to use. For each API level (starting with 18), there is a matching .0...
Checking if an Android application is running in the background
...n.activityPaused();
}
Update
ActivityLifecycleCallbacks were added in API level 14 (Android 4.0). You can use them to track whether an activity of your application is currently visible to the user. Check Cornstalks' answer below for the details.
The wrong one
I used to suggest the following so...