@Retention(value = AnnotationRetention.SOURCE)
@Target(allowedTargets = [AnnotationTarget.ANNOTATION_CLASS])
public annotation IntDef

Denotes that the annotated element of integer type, represents a logical type and that its value should be one of the explicitly named constants. If the IntDef#flag() attribute is set to true, multiple constants can be combined.

Example:

@Retention(SOURCE)
@IntDef({NAVIGATION_MODE_STANDARD, NAVIGATION_MODE_LIST, NAVIGATION_MODE_TABS})
public @interface NavigationMode {}
public static final int NAVIGATION_MODE_STANDARD = 0;
public static final int NAVIGATION_MODE_LIST = 1;
public static final int NAVIGATION_MODE_TABS = 2;
...
public abstract void setNavigationMode(@NavigationMode int mode);

@NavigationMode
public abstract int getNavigationMode();

For a flag, set the flag attribute:

@IntDef(
flag = true,
value = {NAVIGATION_MODE_STANDARD, NAVIGATION_MODE_LIST, NAVIGATION_MODE_TABS}
)
See also
LongDef

Summary