LongDef
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Cmn
@Retention(value = AnnotationRetention.SOURCE)
@Target(allowedTargets = [AnnotationTarget.ANNOTATION_CLASS])
annotation LongDef
Denotes that the annotated long element represents a logical type and that its value should be one of the explicitly named constants. If the LongDef#flag() attribute is set to true, multiple constants can be combined.
Example:
@Retention(SOURCE)
@LongDef({NAVIGATION_MODE_STANDARD, NAVIGATION_MODE_LIST, NAVIGATION_MODE_TABS})
public @interface NavigationMode {}
public static final long NAVIGATION_MODE_STANDARD = 0;
public static final long NAVIGATION_MODE_LIST = 1;
public static final long NAVIGATION_MODE_TABS = 2;
...
public abstract void setNavigationMode(@NavigationMode long mode);
@NavigationMode
public abstract long getNavigationMode();
For a flag, set the flag attribute:
@LongDef(
flag = true,
value = {NAVIGATION_MODE_STANDARD, NAVIGATION_MODE_LIST, NAVIGATION_MODE_TABS}
)
| See also | |
|---|---|
IntDef |
Summary
Public properties |
||
|---|---|---|
Boolean |
Defines whether the constants can be used as a flag, or just as an enum (the default) |
Cmn
|
Boolean |
Whether any other values are allowed. |
Cmn
|
LongArray |
Defines the allowed constants for this element |
Cmn
|
Public properties
flag
val flag: Boolean
Defines whether the constants can be used as a flag, or just as an enum (the default)
open
val open: Boolean
Whether any other values are allowed. Normally this is not the case, but this allows you to specify a set of expected constants, which helps code completion in the IDE and documentation generation and so on, but without flagging compilation warnings if other values are specified.