{"id":783,"date":"2013-08-10T18:44:39","date_gmt":"2013-08-10T22:44:39","guid":{"rendered":"http:\/\/blog.alanporter.com\/?p=783"},"modified":"2013-08-10T18:44:39","modified_gmt":"2013-08-10T22:44:39","slug":"iphone-dev-notes","status":"publish","type":"post","link":"https:\/\/alanporter.com\/blog\/2013\/08\/10\/iphone-dev-notes\/","title":{"rendered":"iPhone dev notes: things that I got stuck on"},"content":{"rendered":"

Here are some things that I got stuck on this weekend while trying to work on iPhone apps.<\/p>\n

Simulator ran my app in 3.5-inch (iPhone 4 size) instead of 4.0-inch (iPhone 5 size).<\/h3>\n

I wasted a lot of time on this one.<\/p>\n

Whenever I ran the app in the simulator, it would launch in the shorter (640-960) 3.5-inch screen, even if I had previously chosen the taller (640×1136) 4.0-inch screen size.<\/p>\n

In Xcode, there is a pulldown at the upper left where you can define your “scheme”. \u00a0It looks like this:<\/p>\n

\"xcode-scheme\"<\/a><\/p>\n

Here’s a cool trick. \u00a0This is the menu where you can set certain parameters for when you build, run, debug, profile and archive the app. \u00a0For example, you can set the simulator’s screen size by clicking on the app name on the left of the scheme widget and choosing “Edit Scheme…”. \u00a0Then select the “Run MyApp.app” action on the left, the “Options” tab, and set the “iPhone simulator display” to the size that you want to use each time you run.<\/p>\n

But still, even if I chose the 4-inch display in my scheme’s “run” action, the simulator ignored this setting and opened in a 3.5-inch display.<\/p>\n

The problem is that iOS 5.0 does not support the 4-inch display. \u00a0The taller display debuted with the iPhone 5, which came with iOS 6.0.<\/p>\n

So the solution is to just change the target to “iPhone 6.0 simulator”. \u00a0Then slap your forehead and say “duh!”.<\/p>\n

Error: A valid provisioning profile for this executable was not found.<\/h3>\n

I had been preparing an app for submission into the App Store. \u00a0Then I went to run it on my local device again, and it kept popping up an error message: “A valid provisioning profile for this executable was not found.”<\/p>\n

I went into the project’s “Build Settings”, and I checked all of the values in the “Code Signing” section. \u00a0I made sure that the “AdHoc” and “Debug” entries were set to iPhone Developer (currently matches ‘iPhone Developer: Alan Porter (ABCDE12345)’ in ‘MyProvProfile’)<\/em>. \u00a0The “AppStore” entry was set to iPhone Distribution (currently matches ‘iPhone Distribution: Sentosa.US (LMNOP67890) in ‘VWXYZ12345.us.sentosa.Tipster’)<\/em>. \u00a0These settings are important. \u00a0They tell Xcode to sign your local development builds using your developer certificate, and to sign your App Store submissions using your team’s distribution certificate.<\/p>\n

But once again, the problem was in the “scheme” menu. \u00a0Under the “Run MyApp.app” action and “Info” tab, my “Build Configuration” was mistakenly set to “AppStore”. \u00a0This won’t work, because for local builds, you need to sign the code with your own developer certificate. \u00a0The Distribution certificate should only be used when you’re submitting your app to the App Store.<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Here are some things that I got stuck on this weekend while trying to work on iPhone apps. Simulator ran my app in 3.5-inch (iPhone 4 size) instead of 4.0-inch (iPhone 5 size). I wasted a lot of time on this one. Whenever I ran the app in the simulator, it would launch in the […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,15],"tags":[],"class_list":["post-783","post","type-post","status-publish","format-standard","hentry","category-iphone","category-tips-tricks","count-0","even alt","author-alan","last"],"_links":{"self":[{"href":"https:\/\/alanporter.com\/blog\/wp-json\/wp\/v2\/posts\/783","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/alanporter.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/alanporter.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/alanporter.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/alanporter.com\/blog\/wp-json\/wp\/v2\/comments?post=783"}],"version-history":[{"count":0,"href":"https:\/\/alanporter.com\/blog\/wp-json\/wp\/v2\/posts\/783\/revisions"}],"wp:attachment":[{"href":"https:\/\/alanporter.com\/blog\/wp-json\/wp\/v2\/media?parent=783"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/alanporter.com\/blog\/wp-json\/wp\/v2\/categories?post=783"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/alanporter.com\/blog\/wp-json\/wp\/v2\/tags?post=783"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}