I have multiple UIImageView subclasses:
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
for (UITouch *touch in touches) {
CGPoint _location = [touch locationInView:touch.view];
[self processTouch:_location];
}
}
-(void)processTouch:(CGPoint)location {
DLog(@"location: %f .. bounds: %f : %f" ,location.x, [twoThirdOfTheWayCoordinateX floatValue], [oneThirdOfTheWayCoordinateX floatValue]);
if(CGRectContainsPoint(self.frame, location)) {
DLog(@"1");
if(location.x > [twoThirdOfTheWayCoordinateX floatValue]){
[self oneStar];
} else if (location.x < [oneThirdOfTheWayCoordinateX floatValue]) {
[self zeroStars];
} else if( [twoThirdOfTheWayCoordinateX floatValue] >= location.x && location.x >= [oneThirdOfTheWayCoordinateX floatValue]){
[self halfStars];
}
}
}
The DLog(@"1"); never gets called. The UIImageView Subclass is in the middle of the iphone screen. when it is in the top left corner, this code works.
NSLog: -[Star processTouch:] location: 44.000000 .. bounds: 33.333332 : 16.666666
I assume the problem is because:
if(CGRectContainsPoint(self.frame, location)) {
never gets called.
Why is that so? the first DLog gets called.
Code i use to initialize the instance:
self.instance = [[Class alloc] initWithFrame:CGRectMake(10, 10, 50 , 50)];
self.instance.userInteractionEnabled = YES;
self.instance.image = [UIImage imageNamed:@"0-0.png"];
[self.view addSubview: self.instance];
[self.instance setNeedsDisplay];
replacing self.frame with self.bounds fixed the issue.
kudos to august on #iphonedev on freenode.