Well Golly

Most of my apps were built with iOS4 or iOS5. They don’t require any of the new features of iOS6,7,8 so they will run fine on older devices that can’t upgrade. (I do have conditional code for iOS7s look and feel, and of course they run on the new iPhone sizes.) The original iPads will run iOS 5.1.1 but not any version that is newer. Unfortunately, the dropdown for choosing the minimum deployment target only lists iOS 5.1, which won’t validate.

So how do you change this,

to this?

In my case I happen to be lucky in that Xcode 5 asked me if I wanted to fix the error and fixed it for me. So my project default is 5.1.1 and my problem is just to get it into the build settings. After much experimentation, I discovered that bringing up the deployment dropdown in the build phases column, closing it, then hitting the delete key fills in the box with the project default. I don’t know how to get the project default to contain 5.1.1 if it doesn’t already.

To view the sizes, select the blank image space that you are interested in and click the size inspector. The size shows up at the bottom RHS along with the iOS version that it is targeted to.

Your screen should look something like this.

iPhone 6 requires two new images.

180×180
Icon-iPhone-60@3x.png

87×87
Icon-Small@3x.png

If you look at the JSON for the appiconset it should look something like this. The first line has the sizes. Note that some icons are used in multiple places. The names are arbitrary but I kept the same naming convention as before.

{
  "images" : [
    {
      "size" : "29x29",
      "idiom" : "iphone",
      "filename" : "Icon-Small.png",
      "scale" : "1x"
    },
    {
      "size" : "29x29",
      "idiom" : "iphone",
      "filename" : "Icon-Small@2x.png",
      "scale" : "2x"
    },
    {
      "size" : "29x29",
      "idiom" : "iphone",
      "filename" : "Icon-Small@3x.png",
      "scale" : "3x"
    },
    {
      "size" : "40x40",
      "idiom" : "iphone",
      "filename" : "Icon-40@2x.png",
      "scale" : "2x"
    },
    {
      "size" : "40x40",
      "idiom" : "iphone",
      "filename" : "Icon-iPhone-60@2x.png",
      "scale" : "3x"
    },
    {
      "size" : "57x57",
      "idiom" : "iphone",
      "filename" : "Icon.png",
      "scale" : "1x"
    },
    {
      "size" : "57x57",
      "idiom" : "iphone",
      "filename" : "Icon@2x.png",
      "scale" : "2x"
    },
    {
      "size" : "60x60",
      "idiom" : "iphone",
      "filename" : "Icon-iPhone-60@2x.png",
      "scale" : "2x"
    },
    {
      "size" : "60x60",
      "idiom" : "iphone",
      "filename" : "Icon-iPhone-60@3x.png",
      "scale" : "3x"
    },
    {
      "size" : "29x29",
      "idiom" : "ipad",
      "filename" : "Icon-Small.png",
      "scale" : "1x"
    },
    {
      "size" : "29x29",
      "idiom" : "ipad",
      "filename" : "Icon-Small@2x.png",
      "scale" : "2x"
    },
    {
      "size" : "40x40",
      "idiom" : "ipad",
      "filename" : "Icon-40.png",
      "scale" : "1x"
    },
    {
      "size" : "40x40",
      "idiom" : "ipad",
      "filename" : "Icon-40@2x.png",
      "scale" : "2x"
    },
    {
      "size" : "50x50",
      "idiom" : "ipad",
      "filename" : "Icon-Small-50.png",
      "scale" : "1x"
    },
    {
      "size" : "50x50",
      "idiom" : "ipad",
      "filename" : "Icon-Small-50@2x.png",
      "scale" : "2x"
    },
    {
      "size" : "72x72",
      "idiom" : "ipad",
      "filename" : "Icon-72.png",
      "scale" : "1x"
    },
    {
      "size" : "72x72",
      "idiom" : "ipad",
      "filename" : "Icon-72@2x.png",
      "scale" : "2x"
    },
    {
      "size" : "76x76",
      "idiom" : "ipad",
      "filename" : "Icon-iPad-76.png",
      "scale" : "1x"
    },
    {
      "size" : "76x76",
      "idiom" : "ipad",
      "filename" : "Icon-iPad-76@2x.png",
      "scale" : "2x"
    }
  ],
  "info" : {
    "version" : 1,
    "author" : "xcode"
  },
  "properties" : {
    "pre-rendered" : true
  }
}

I have 27 apps in the store and did not want to create and manage new backgrounds for each of them. And I suspect that there will be more sizes in the future. So what I did was create an 1800×1800 image for each app. They are mostly around 300-400KB. Then in viewWillAppear I call this method.

- (void)pickBackgroundImage {

    UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation];
    CGFloat scale = [UIScreen mainScreen].scale;
    CGPoint midPoint = [Utilities findMidpoint:self.view];

    NSString *pictFile = [[NSBundle mainBundle] pathForResource:@"Background" ofType:@"png"];
    UIImage *imageToDisplay = [UIImage imageWithContentsOfFile:pictFile];
    imageToDisplay  = [UIImage imageWithCGImage:imageToDisplay.CGImage scale:scale orientation:imageToDisplay.imageOrientation];

    CGRect pictFrame;
    if(orientation == UIInterfaceOrientationPortrait || orientation == UIInterfaceOrientationPortraitUpsideDown) {
        CGFloat imageWidth = (unsigned int)(.9f * self.view.frame.size.width);
        pictFrame = CGRectMake(midPoint.x - imageWidth/2, midPoint.y - imageWidth/2, imageWidth, imageWidth);
        pictFrame.origin.y = self.view.frame.origin.y + .3f * pictFrame.origin.y;
    } else {
        CGFloat imageWidth = (unsigned int)(self.view.frame.size.height - 20 - 44);
        pictFrame = CGRectMake(midPoint.x - imageWidth/2, midPoint.y - imageWidth/2, imageWidth, imageWidth);
        pictFrame.origin.y = 10;
    }
    self.BGView = [[UIImageView alloc] initWithImage:imageToDisplay];
    self.BGView.frame = pictFrame;
    self.BGView.contentMode = UIViewContentModeScaleAspectFit;

    [self.view insertSubview:self.BGView atIndex:0];
}

Works in the simulator for all devices. I don’t have a new phone so I haven’t been able to test it on one yet.