Hi. Im not sure if this topic is still active but could i ask you to elaborate?
I checked a few youtube videos and the author says he declares final variables
that will be saved if anyone leaves the app and comes back and he sets the
value in onsaveinstancestate. The problem is he declares
On Jan 20, 10:49 am, Burk Hufnagel silveran...@gmail.com wrote:
Tim,
This is not an Android thing, it's a Java thing. Because the anonymous
instance of OnClickListener can exist after the onCreate method
completes its execution, you have to declare that builder is final
otherwise it will be
The 'final' keyword is not android specific.
It is a java keyword that declares that the variable-reference can
never be changed after it has been defined.
e.g.
final int x;
x = 10; // OK
x = 20; // Compiler error, since x is declared final and cannot be
changed.
final String age;
if (x = 0)
builder is a local variable in scope of the onCreate method and is
used in the anonymous inner class (new OnClickListener). Java keeps a
copy of that local variable inside the listener object so Final
ensures that the copy is consistent - you are not allowed to assign
builder to some other value
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