iOS How to change subviews' properties?

[mikezang]

I made a UIView in IB and I want to modify some of properties of subviews in UIView, what can I do?
For example, I want to modify the origin of button.

- (id)initWithFrame:(CGRect)frame {
    if ((self = [super initWithFrame:frame])) {

		NSArray *keyboards = [[NSBundle mainBundle] loadNibNamed:@"ChineseRhymeKeyboard" owner:self options:nil];
		self = [[keyboards objectAtIndex:0] retain];	
		
		for (UIButton *button in self.subviews) {
//			CGRect frame = button.frame;
//			frame.origin.y -= 10;
//			button.frame = frame;
//			[self addSubview:button];
			NSLog(@"%@", button.titleLabel.text);
		}
    }
	
    return self;
}

 

[robbieduncan]

Simply changing the frame of a view (even if it is the subview of another view) should work. Re-adding it as a subview again, however, is nuts.

 

[mikezang]

Simply changing the frame of a view (even if it is the subview of another view) should work. Re-adding it as a subview again, however, is nuts.

Thanks, but I found that button can be set highlight when initialize and it can't be set to highlight after I clicked it, do you know why?

for (int i = 0; i < 4; i++) {
	UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
	button.frame = CGRectMake(0.0, 0.0, KEY_WIDTH, KEY_HEIGHT);
	button.center = CGPointMake(KEY_X1 + KEY_WIDTH / 2, KEY_Y + KEY_HEIGHT * (2 * i + 1) / 2 + KEY_GAP_Y * i);
	button.tag = (i + 1) * 100;
			
	if (i == 0) {
		button.enabled = NO;
		button.highlighted = YES;
	}
			
	[button setTitle:[fourVoice objectAtIndex:i] forState:UIControlStateNormal];
	[button addTarget:self action:@selector(selectFourVoice:) forControlEvents:UIControlEventTouchUpInside];

	[self addSubview:button];
}

-(IBAction) selectFourVoice:(id)sender {
	UIButton *fourVoice = nil;
	
	for (int i = EvenTone; i <= 400; i+=100) {
		fourVoice = (UIButton *)[self viewWithTag:i];
		
		fourVoice.enabled = YES;
		fourVoice.highlighted = NO;
	}
	
	fourVoice = (UIButton *)sender;
	
	for (int i = 1; i <= 4; i++) {
		for (int j = 1 + 100 * i; j <= 100 * i + 10; j++) {
			UIButton *key = (UIButton *)[self viewWithTag:j];
			
			[self setKeyTitle:key forTone:fourVoice.tag];
		}
	}

	fourVoice.highlighted = YES;
	fourVoice.enabled = NO;
}

 

[mikezang]

Well, I got what I need.

 

[dejo]

And you fixed it how?...

If you're going to come to these forums and ask for help, you might want to consider contributing back to them by sharing your solution as well.

 

[mikezang]

And you fixed it how?...

If you're going to come to these forums and ask for help, you might want to consider contributing back to them by sharing your solution as well.

Absolute! I am glad to open my source. Check here.