status-mobile/modules/react-native-status/ios/RCTStatus/TimerJSExport.m

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#import "TimerJSExport.h"
@implementation TimerJS
- (NSString *)setTimeout:(JSValue *)args {
JSValue *callback = [args callWithArguments:@[@0]];
double ms = [[args callWithArguments:@[@1]] toDouble];
return [self createTimer:callback inteval:ms repeats:NO];
}
- (void)clearInterval:(NSString *)id {
NSTimer *timer = [_timers objectForKey:id];
if(timer != nil) {
[timer invalidate];
}
}
- (NSString *)setInterval:(JSValue *)args {
JSValue *callback = [args callWithArguments:@[@0]];
double ms = [[args callWithArguments:@[@1]] toDouble];
return [self createTimer:callback inteval:ms repeats:YES];
}
- (NSString *)createTimer:(JSValue *)callback
inteval:(double)ms
repeats:(BOOL)repeats {
if (_timers == nil) {
_timers = [NSMutableDictionary dictionaryWithCapacity:1];
}
double interval = ms/1000.0;
NSString *uuid = [[NSUUID UUID] UUIDString];
dispatch_async( dispatch_get_main_queue(), ^{
NSTimer *timer = [NSTimer scheduledTimerWithTimeInterval:interval
repeats:repeats
block:^(NSTimer * _Nonnull timer) {
[callback callWithArguments:nil]; }];
[_timers setObject:timer forKey:uuid];
});
return uuid;
}
- (void)addToContext:(JSContext *)context {
[context setObject:self forKeyedSubscript:@"jsTimer"];
}
- (void)stopTimers {
NSArray *keys = [_timers allKeys];
for (NSString *key in keys) {
NSTimer *timer = [_timers valueForKey:key];
[timer invalidate];
[_timers removeObjectForKey:key];
}
}
@end