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POHow can I set my UIView's frame from CGRectMake?
 

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  1. POHow can I set my UIView's frame from CGRectMake?
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    <p>I am new to iOS development, but have had an extensive crash course recently (BNR guid to iOS Programming). I am working on modally adding views to an app. I currently do not have a View Controller, so my AppDelegate's <code>application:didFinishLaunchingWithOptions</code> method looks as follows:</p> <pre><code>- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; // Override point for customization after application launch. MyUIView *map = [[MapSurface alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; //this one does not work: MyUIView *map = [[MapSurface alloc] initWithFrame:CGRectMake(0, 0, 256, 256)]; [map setBackgroundColor:[UIColor grayColor]]; [[self window] addSubview:map]; self.window.backgroundColor = [UIColor whiteColor]; [self.window makeKeyAndVisible]; return YES; } </code></pre> <p>After the view loads, I make a call to add a subview, but I cannot set the frame size using <code>CGRectMake</code>. It doesn't show up on screen. The only thing I have found to work is using the screen size, but this is not what I want. Here is the code for adding this subview:</p> <pre><code>UIImage *image = [[UIImage alloc] initWithCGImage:img];//img is a CGImageRef UIImageView *view = [[UIImageView alloc] initWithImage:image]; CGRect b = CGRectMake(0, 0, 256, 256); //[view setFrame:b];//nothing shows on screen //[view setBounds:b];//nothing shows on screen //[view setBounds:[[UIScreen mainScreen] bounds]];//shows the tan area in the graphic below [view setFrame:[[UIScreen mainScreen] bounds]];//fills the screen [map addSubView:view]; CGImageRelease(img); </code></pre> <p><img src="https://i.stack.imgur.com/p09Ea.png" alt="The tan area is not even filling the screen!"></p>
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    1. USPhil
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    1. COset image view's frame instead of bounds. Also, fetch window/view size after it is visible.
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      1. POHow can I set my UIView's frame from CGRectMake?
      1. USlukya
    2. CO@lukya, I changed that method call. Good catch. But I still have the issue of not being able to use `CGRectMake`.
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      1. POHow can I set my UIView's frame from CGRectMake?
      1. USPhil
    3. COwhere have you added the second section of code? and did you try setting the frame after adding the image view?
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      1. POHow can I set my UIView's frame from CGRectMake?
      1. USlukya
 

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