方向上的旋转按钮更改为横向视图

Question

I am making one Paint application..The button marked with Red circle, I want it to be rotated 90 degree "when orientation is changed to Landscape mode".. Image marked with RED circle is placed on BUTTON.. So should i rotate button or image when orientation changes??

Hope this description will give you idea about my problem.. Thanks..

Please follow this link to see screenshot as i am not allowed to post image..

http://imageshack.us/photo/my-images/26/screenshot20110712at507.png/

Answer 1

You could do either but I think it would be easier to just flip the image 90 degrees. When your application switches to landscape have a new image, really just the old image turned 90 degrees, and set that as the image for the button. Hope this helps.

Answer 2

Well thats a sweet deal. Just copy paste the follwing code in your view controller (the one in which you want the buttons to be rotated).

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// Return YES for supported orientations
if (interfaceOrientation == UIInterfaceOrientationPortrait ||
    interfaceOrientation == UIInterfaceOrientationLandscapeLeft ||
    interfaceOrientation == UIInterfaceOrientationLandscapeRight)
    return YES;
else {
    return NO;
}}

This might give you the idea of your target. Happy Coding..!

Answer 3

You can set the frame of UIButton in the following method as follows:

In.h class

IBOutlet UIButton *redButton;

And in.m class:

  - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Return YES for supported orientations
         if (interfaceOrientation == UIInterfaceOrientationPortrait)
         {
             redButton.frame = CGRectMake(100,50,100,50)
         }
         else 
         {
             redButton.frame = CGRectMake(50,100,100,50)
         }

   return YES;

    }

So, you can change the frame of your button as per the requirement.