Question

I have an iPhone game and I want to convert the project into a universal one. In fact, I have done so already by adjusting the target.
The problem is: For example the UIButtons don’t resize and don’t relocate.

Question: What is the correct way to create a button so that it automatically adjusts its size if the universal app is run on the Pad?

At the moment I’m making buttons like so:

    [self setSettingsButton:[UIButton buttonWithType:UIButtonTypeCustom]];
    [settingsButton setFrame:CGRectMake(38, 121, 30, 180)];
    [settingsButton setBackgroundImage:[UIImage imageNamed:@"SettingsButton.png"] forState:UIControlStateNormal];
    [settingsButton addTarget:self action:@selector(prefButtonClick) forControlEvents:UIControlEventTouchUpInside];
    [self addSubview:settingsButton];

Well yes, obviously, the positions and sizes are absolute when they should be relative but my question is: how to make them relative?

Many thanks for your help!

Answer 1

I see two ways in this situation:

1)

if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) {
    [settingsButton setFrame:CGRectMake(38, 121, 30, 180)];
}
else {
    [settingsButton setFrame:CGRectMake(131, 145, 60, 250)]; // your iPad values
}

2)

CGRect bounds = self.view.bounds; // Here we get VC views frame size
CGRect buttonFrame = CGRectZero;
buttonsFrame.origin.x = bounds.size.width * 1.0/3.0;   // Yours calculations
buttonsFrame.origin.y = bounds.size.width * 4.0/5.0;   //
buttonsFrame.size.width = 240;                         //
buttonsFrame.size.height = 300;                        //
[settingsButton setFrame:buttonsFrame];

Hope this’ll help!