squishykid/uikit-apple-watch.md

## uikit-apple-watch.md

      
    Raw
  

              uikit-apple-watch.md
            
          
    Update: UIKit works!! More complete post & info incoming, after http://hackthenorth.com/ (where I am now) is over.


Attempting to get React Native to work on watchOS 2, starting with trying to get just UIKit working like @steventroughtonsmith: http://blog.steventroughtonsmith.com/post/128957959685/native-uikit-apps-on-apple-watch
The 'ActualWatchApp' framework target is linked to React Native headers via Cocoapods; currently just trying to get the 'PlainWatchApp' framework target (which isn't linked to React Native) working.

Targets

VanillaWatch

iPhone app
VanillaWatch WatchKit App

Watch app
VanillaWatch WatchKit Extension

ActualWatchApp

Watch Framework (linked with React Native via cocoapods)
PlainWatchApp

Watch Framework
// PlainWatchApp/main.m

#import <UIKit/UIKit.h>
#import "AppDelegate.h"

void __attribute__((constructor)) injected_main()
{
    @autoreleasepool {
        UIApplicationMain(0, nil, @"UIApplication", NSStringFromClass([AppDelegate class]));
    }
}
// PlainWatchApp/AppDelegate.h

#import <UIKit/UIKit.h>

@interface AppDelegate : UIResponder <UIApplicationDelegate>

@property (strong, nonatomic) UIWindow *window;

@end
// PlainWatchApp/AppDelegate.m

#import "AppDelegate.h"

@interface AppDelegate ()

@end

@implementation AppDelegate


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    /*
     * Just drawing a blue rect; works on iPhone
     */
    UIScreen *mainScreen = [UIScreen mainScreen];
    CGRect bounds = mainScreen.bounds;
    self.window = [[UIWindow alloc] initWithFrame:bounds];
    UIView *aView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 50, 50)];
    aView.backgroundColor = [UIColor blueColor];
    UIViewController *rootViewController = [[UIViewController alloc] init];
    rootViewController.view = aView;
    self.window.rootViewController = rootViewController;
    [self.window makeKeyAndVisible];
    return YES;
}

@end
Copy Frameworks from iPhoneOS.platform to WatchOS.platform

Copied all required frameworks from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/ to /Applications/Xcode.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS.sdk/System/Library/Frameworks/ and added armv7k to .tbd files.
Attempt at copying dylib & signing

# Copy dylib
cp PlainWatchApp.framework/PlainWatchApp VanillaWatch\ WatchKit\ App.app/Frameworks/PlainWatchApp.dylib
# Change LC_LOAD_DYLIB path for iPhoneOS.platform
PLATFORMSDIR=`xcode-select -p`/Platforms \
install_name_tool -change \
/System/Library/PrivateFrameworks/SockPuppetGizmo.framework/SockPuppetGizmo \
@rpath/PlainWatchApp.dylib \
$PLATFORMSDIR/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/Library/Application\ Support/WatchKit/WK
# Change LC_LOAD_DYLIB path for VanillaWatch WatchKit App.app
PRODUCTSDIR=~/Library/Developer/Xcode/DerivedData/VanillaWatch-aswcmlzpigpgdafnukwlclhyohvl/Build/Products/Debug-watchos \
install_name_tool -change \
/System/Library/PrivateFrameworks/SockPuppetGizmo.framework/SockPuppetGizmo \
@rpath/PlainWatchApp.dylib \
$PRODUCTSDIR/VanillaWatch\ WatchKit\ App.app/_WatchKitStub/WK

install_name_tool -change \
/System/Library/PrivateFrameworks/SockPuppetGizmo.framework/SockPuppetGizmo \
@rpath/PlainWatchApp.dylib \
$PRODUCTSDIR/VanillaWatch\ WatchKit\ App.app/VanillaWatch\ WatchKit\ App
# Sign the .app

❯ codesign -vvvv -f --deep -s "Spencer Elliott" VanillaWatch\ WatchKit\ App.app/Frameworks/PlainWatchApp.dylib 
VanillaWatch WatchKit App.app/Frameworks/PlainWatchApp.dylib: replacing existing signature
VanillaWatch WatchKit App.app/Frameworks/PlainWatchApp.dylib: signed Mach-O thin (armv7k) [PlainWatchApp]
                                                                                                                                                                                               
❯ codesign -vvvv -f --deep -s "Spencer Elliott" VanillaWatch\ WatchKit\ App.app/VanillaWatch\ WatchKit\ App   
VanillaWatch WatchKit App.app/VanillaWatch WatchKit App: replacing existing signature
VanillaWatch WatchKit App.app/VanillaWatch WatchKit App: signed bundle with Mach-O thin (armv7k) [com.elliottsj.VanillaWatch.watchkitapp]
                                                                                                                                                                                               
❯ codesign -vvvv -f --deep -s "Spencer Elliott" VanillaWatch\ WatchKit\ App.app/                           
VanillaWatch WatchKit App.app/: replacing existing signature
VanillaWatch WatchKit App.app/: signed bundle with Mach-O thin (armv7k) [com.elliottsj.VanillaWatch.watchkitapp]
Current error


otool

otool -l $PRODUCTSDIR/VanillaWatch\ WatchKit\ App.app/_WatchKitStub/WK:
VanillaWatch WatchKit App.app/_WatchKitStub/WK:
Load command 0
      cmd LC_SEGMENT
  cmdsize 56
  segname __PAGEZERO
   vmaddr 0x00000000
   vmsize 0x00004000
  fileoff 0
 filesize 0
  maxprot 0x00000000
 initprot 0x00000000
   nsects 0
    flags 0x0
Load command 1
      cmd LC_SEGMENT
  cmdsize 192
  segname __TEXT
   vmaddr 0x00004000
   vmsize 0x00004000
  fileoff 0
 filesize 16384
  maxprot 0x00000005
 initprot 0x00000005
   nsects 2
    flags 0x0
Section
  sectname __stub_helper
   segname __TEXT
      addr 0x00007fcc
      size 0x00000030
    offset 16332
     align 2^2 (4)
    reloff 0
    nreloc 0
     flags 0x80000400
 reserved1 0
 reserved2 0
Section
  sectname __symbolstub1
   segname __TEXT
      addr 0x00007ffc
      size 0x00000004
    offset 16380
     align 2^2 (4)
    reloff 0
    nreloc 0
     flags 0x80000408
 reserved1 0 (index into indirect symbol table)
 reserved2 4 (size of stubs)
Load command 2
      cmd LC_SEGMENT
  cmdsize 328
  segname __DATA
   vmaddr 0x00008000
   vmsize 0x00004000
  fileoff 16384
 filesize 16384
  maxprot 0x00000003
 initprot 0x00000003
   nsects 4
    flags 0x0
Section
  sectname __lazy_symbol
   segname __DATA
      addr 0x00008000
      size 0x00000004
    offset 16384
     align 2^2 (4)
    reloff 0
    nreloc 0
     flags 0x00000007
 reserved1 1 (index into indirect symbol table)
 reserved2 0
Section
  sectname __nl_symbol_ptr
   segname __DATA
      addr 0x00008004
      size 0x00000008
    offset 16388
     align 2^2 (4)
    reloff 0
    nreloc 0
     flags 0x00000006
 reserved1 2 (index into indirect symbol table)
 reserved2 0
Section
  sectname __objc_imageinfo
   segname __DATA
      addr 0x0000800c
      size 0x00000008
    offset 16396
     align 2^2 (4)
    reloff 0
    nreloc 0
     flags 0x00000000
 reserved1 0
 reserved2 0
Section
  sectname __watchkit
   segname __DATA
      addr 0x00008014
      size 0x00000000
    offset 16404
     align 2^0 (1)
    reloff 0
    nreloc 0
     flags 0x00000000
 reserved1 0
 reserved2 0
Load command 3
      cmd LC_SEGMENT
  cmdsize 56
  segname __LINKEDIT
   vmaddr 0x0000c000
   vmsize 0x00004000
  fileoff 32768
 filesize 9696
  maxprot 0x00000001
 initprot 0x00000001
   nsects 0
    flags 0x0
Load command 4
            cmd LC_DYLD_INFO_ONLY
        cmdsize 48
     rebase_off 32768
    rebase_size 4
       bind_off 32772
      bind_size 24
  weak_bind_off 0
 weak_bind_size 0
  lazy_bind_off 32796
 lazy_bind_size 28
     export_off 32824
    export_size 64
Load command 5
     cmd LC_SYMTAB
 cmdsize 24
  symoff 32892
   nsyms 5
  stroff 32968
 strsize 100
Load command 6
            cmd LC_DYSYMTAB
        cmdsize 80
      ilocalsym 0
      nlocalsym 1
     iextdefsym 1
     nextdefsym 2
      iundefsym 3
      nundefsym 2
         tocoff 0
           ntoc 0
      modtaboff 0
        nmodtab 0
   extrefsymoff 0
    nextrefsyms 0
 indirectsymoff 32952
  nindirectsyms 4
      extreloff 0
        nextrel 0
      locreloff 0
        nlocrel 0
Load command 7
          cmd LC_LOAD_DYLINKER
      cmdsize 28
         name /usr/lib/dyld (offset 12)
Load command 8
     cmd LC_UUID
 cmdsize 24
    uuid F72F628A-5B01-33EB-B932-737B8F8448BD
Load command 9
      cmd LC_VERSION_MIN_WATCHOS
  cmdsize 16
  version 2.0
      sdk 2.0
Load command 10
      cmd LC_SOURCE_VERSION
  cmdsize 16
  version 487.0
Load command 11
       cmd LC_MAIN
   cmdsize 24
  entryoff 16380
 stacksize 0
Load command 12
          cmd LC_LOAD_DYLIB
      cmdsize 52
         name @rpath/PlainWatchApp.dylib (offset 24)
   time stamp 2 Wed Dec 31 19:00:02 1969
      current version 487.0.0
compatibility version 1.0.0
Load command 13
          cmd LC_LOAD_DYLIB
      cmdsize 76
         name /System/Library/Frameworks/UIKit.framework/UIKit (offset 24)
   time stamp 2 Wed Dec 31 19:00:02 1969
      current version 3505.255.4
compatibility version 1.0.0
Load command 14
          cmd LC_LOAD_DYLIB
      cmdsize 84
         name /System/Library/Frameworks/Foundation.framework/Foundation (offset 24)
   time stamp 2 Wed Dec 31 19:00:02 1969
      current version 1231.0.0
compatibility version 300.0.0
Load command 15
          cmd LC_LOAD_DYLIB
      cmdsize 52
         name /usr/lib/libobjc.A.dylib (offset 24)
   time stamp 2 Wed Dec 31 19:00:02 1969
      current version 228.0.0
compatibility version 1.0.0
Load command 16
          cmd LC_LOAD_DYLIB
      cmdsize 52
         name /usr/lib/libSystem.B.dylib (offset 24)
   time stamp 2 Wed Dec 31 19:00:02 1969
      current version 1225.0.0
compatibility version 1.0.0
Load command 17
          cmd LC_RPATH
      cmdsize 40
         path @executable_path/Frameworks (offset 12)
Load command 18
      cmd LC_FUNCTION_STARTS
  cmdsize 16
  dataoff 32888
 datasize 4
Load command 19
      cmd LC_DATA_IN_CODE
  cmdsize 16
  dataoff 32892
 datasize 0
Load command 20
      cmd LC_CODE_SIGNATURE
  cmdsize 16
  dataoff 33072
 datasize 9392

otool -l $PLATFORMSDIR/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/Library/Application\ Support/WatchKit/WK:
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/Library/Application Support/WatchKit/WK:
Load command 0
      cmd LC_SEGMENT
  cmdsize 56
  segname __PAGEZERO
   vmaddr 0x00000000
   vmsize 0x00004000
  fileoff 0
 filesize 0
  maxprot 0x00000000
 initprot 0x00000000
   nsects 0
    flags 0x0
Load command 1
      cmd LC_SEGMENT
  cmdsize 192
  segname __TEXT
   vmaddr 0x00004000
   vmsize 0x00004000
  fileoff 0
 filesize 16384
  maxprot 0x00000005
 initprot 0x00000005
   nsects 2
    flags 0x0
Section
  sectname __stub_helper
   segname __TEXT
      addr 0x00007fcc
      size 0x00000030
    offset 16332
     align 2^2 (4)
    reloff 0
    nreloc 0
     flags 0x80000400
 reserved1 0
 reserved2 0
Section
  sectname __symbolstub1
   segname __TEXT
      addr 0x00007ffc
      size 0x00000004
    offset 16380
     align 2^2 (4)
    reloff 0
    nreloc 0
     flags 0x80000408
 reserved1 0 (index into indirect symbol table)
 reserved2 4 (size of stubs)
Load command 2
      cmd LC_SEGMENT
  cmdsize 328
  segname __DATA
   vmaddr 0x00008000
   vmsize 0x00004000
  fileoff 16384
 filesize 16384
  maxprot 0x00000003
 initprot 0x00000003
   nsects 4
    flags 0x0
Section
  sectname __lazy_symbol
   segname __DATA
      addr 0x00008000
      size 0x00000004
    offset 16384
     align 2^2 (4)
    reloff 0
    nreloc 0
     flags 0x00000007
 reserved1 1 (index into indirect symbol table)
 reserved2 0
Section
  sectname __nl_symbol_ptr
   segname __DATA
      addr 0x00008004
      size 0x00000008
    offset 16388
     align 2^2 (4)
    reloff 0
    nreloc 0
     flags 0x00000006
 reserved1 2 (index into indirect symbol table)
 reserved2 0
Section
  sectname __objc_imageinfo
   segname __DATA
      addr 0x0000800c
      size 0x00000008
    offset 16396
     align 2^2 (4)
    reloff 0
    nreloc 0
     flags 0x00000000
 reserved1 0
 reserved2 0
Section
  sectname __watchkit
   segname __DATA
      addr 0x00008014
      size 0x00000000
    offset 16404
     align 2^0 (1)
    reloff 0
    nreloc 0
     flags 0x00000000
 reserved1 0
 reserved2 0
Load command 3
      cmd LC_SEGMENT
  cmdsize 56
  segname __LINKEDIT
   vmaddr 0x0000c000
   vmsize 0x00004000
  fileoff 32768
 filesize 9760
  maxprot 0x00000001
 initprot 0x00000001
   nsects 0
    flags 0x0
Load command 4
            cmd LC_DYLD_INFO_ONLY
        cmdsize 48
     rebase_off 32768
    rebase_size 4
       bind_off 32772
      bind_size 24
  weak_bind_off 0
 weak_bind_size 0
  lazy_bind_off 32796
 lazy_bind_size 28
     export_off 32824
    export_size 64
Load command 5
     cmd LC_SYMTAB
 cmdsize 24
  symoff 32952
   nsyms 5
  stroff 33028
 strsize 100
Load command 6
            cmd LC_DYSYMTAB
        cmdsize 80
      ilocalsym 0
      nlocalsym 1
     iextdefsym 1
     nextdefsym 2
      iundefsym 3
      nundefsym 2
         tocoff 0
           ntoc 0
      modtaboff 0
        nmodtab 0
   extrefsymoff 0
    nextrefsyms 0
 indirectsymoff 33012
  nindirectsyms 4
      extreloff 0
        nextrel 0
      locreloff 0
        nlocrel 0
Load command 7
          cmd LC_LOAD_DYLINKER
      cmdsize 28
         name /usr/lib/dyld (offset 12)
Load command 8
     cmd LC_UUID
 cmdsize 24
    uuid 675ED1EB-BAA0-3453-B7B1-3E69310F40FD
Load command 9
      cmd LC_VERSION_MIN_IPHONEOS
  cmdsize 16
  version 8.2
      sdk 8.2
Load command 10
      cmd LC_SOURCE_VERSION
  cmdsize 16
  version 313.10
Load command 11
       cmd LC_MAIN
   cmdsize 24
  entryoff 16380
 stacksize 0
Load command 12
          cmd LC_LOAD_DYLIB
      cmdsize 52
         name @rpath/PlainWatchApp.dylib (offset 24)
   time stamp 2 Wed Dec 31 19:00:02 1969
      current version 1.0.0
compatibility version 1.0.0
Load command 13
          cmd LC_LOAD_DYLIB
      cmdsize 76
         name /System/Library/Frameworks/UIKit.framework/UIKit (offset 24)
   time stamp 2 Wed Dec 31 19:00:02 1969
      current version 3318.93.0
compatibility version 1.0.0
Load command 14
          cmd LC_LOAD_DYLIB
      cmdsize 84
         name /System/Library/Frameworks/Foundation.framework/Foundation (offset 24)
   time stamp 2 Wed Dec 31 19:00:02 1969
      current version 1142.14.0
compatibility version 300.0.0
Load command 15
          cmd LC_LOAD_DYLIB
      cmdsize 52
         name /usr/lib/libobjc.A.dylib (offset 24)
   time stamp 2 Wed Dec 31 19:00:02 1969
      current version 228.0.0
compatibility version 1.0.0
Load command 16
          cmd LC_LOAD_DYLIB
      cmdsize 52
         name /usr/lib/libSystem.B.dylib (offset 24)
   time stamp 2 Wed Dec 31 19:00:02 1969
      current version 1214.5.1
compatibility version 1.0.0
Load command 17
          cmd LC_RPATH
      cmdsize 40
         path @executable_path/Frameworks (offset 12)
Load command 18
      cmd LC_FUNCTION_STARTS
  cmdsize 16
  dataoff 32888
 datasize 4
Load command 19
      cmd LC_DATA_IN_CODE
  cmdsize 16
  dataoff 32892
 datasize 0
Load command 20
      cmd LC_DYLIB_CODE_SIGN_DRS
  cmdsize 16
  dataoff 32892
 datasize 60
Load command 21
      cmd LC_CODE_SIGNATURE
  cmdsize 16
  dataoff 33136
 datasize 9392