Undefined method make_button

[andersennl]

Hi, In a PM::TableScreen I'm trying to use the app.make_button method to create some buttons for an ActionSheet. Unfortunately I get an undefined method error.

I copied the button code from an example of the docs, my code looks basically like this (the error happens using this code):

class HomeTableScreen < PM::TableScreen
  title "Test"
  stylesheet HomeTableScreenStylesheet

  def on_load
    some_action
  end

  def table_data
    [{ cells: some_data }]
  end

  def some_action
    taco = app.make_button("Taco") {
            puts "Taco pressed"
          }
  end
end

Here is the stack trace (I can provide the generated crashlog if needed):

undefined method `make_button' for RubyMotionQuery::App:Class (NoMethodError)
2015-05-10 12:42:15.041 testapp[7212:7434475] *** Terminating app due to uncaught exception 'NoMethodError', reason: 'home_table_screen.rb:29:in `gram_button': undefined method `make_button' for RubyMotionQuery::App:Class (NoMethodError)
'
*** First throw call stack:
(
    0   CoreFoundation                      0x000000010343ec65 __exceptionPreprocess + 165
    1   libobjc.A.dylib                     0x000000010077ebb7 objc_exception_throw + 45
    2   testapp                            0x000000010036a91f _ZL10__vm_raisev + 399
    3   testapp                            0x000000010036aa4d rb_vm_raise + 205
    4   testapp                            0x0000000100268b59 rb_exc_raise + 9
    5   testapp                            0x0000000100368cc2 rb_vm_method_missing + 786
    6   testapp                            0x000000010033bbf5 rb_vm_dispatch + 5925
    7   testapp                            0x000000010033a38d rb_vm_trigger_method_missing + 1053
    8   testapp                            0x000000010033b5ef rb_vm_dispatch + 4383
    9   testapp                            0x00000001000415bc vm_dispatch + 1436
    10  testapp                            0x0000000100226a43 rb_scope__gram_button__ + 355
    11  testapp                            0x0000000100226fcd __unnamed_29 + 13
    12  UIKit                               0x0000000100ca2da2 -[UIApplication sendAction:to:from:forEvent:] + 75
    13  UIKit                               0x0000000100ca2da2 -[UIApplication sendAction:to:from:forEvent:] + 75
    14  UIKit                               0x0000000100db454a -[UIControl _sendActionsForEvents:withEvent:] + 467
    15  UIKit                               0x0000000100db3919 -[UIControl touchesEnded:withEvent:] + 522
    16  UIKit                               0x0000000100cef998 -[UIWindow _sendTouchesForEvent:] + 735
    17  UIKit                               0x0000000100cf02c2 -[UIWindow sendEvent:] + 682
    18  UIKit                               0x0000000100cb6581 -[UIApplication sendEvent:] + 246
    19  UIKit                               0x0000000100cc3d1c _UIApplicationHandleEventFromQueueEvent + 18265
    20  UIKit                               0x0000000100c9e5dc _UIApplicationHandleEventQueue + 2066
    21  CoreFoundation                      0x0000000103372431 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
    22  CoreFoundation                      0x00000001033682fd __CFRunLoopDoSources0 + 269
    23  CoreFoundation                      0x0000000103367934 __CFRunLoopRun + 868
    24  CoreFoundation                      0x0000000103367366 CFRunLoopRunSpecific + 470
    25  GraphicsServices                    0x0000000105067a3e GSEventRunModal + 161
    26  UIKit                               0x0000000100ca1900 UIApplicationMain + 1282
    27  testapp                            0x000000010004964f main + 111
    28  libdyld.dylib                       0x00000001047ef145 start + 1
    29  ???                                 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NoMethodError

================================================================================
The application terminated. A crash report file may have been generated by the
system, use `rake crashlog' to open it. Use `rake debug=1' to restart the app
in the debugger.
================================================================================

I've triple checked everything so I hope it's not a typo from my side. Thanks a lot for your help and your work on this brilliant gem.

[markrickert]

app.make_button is a method of RedAlert. Add gem "RedAlert" to your gemfile, bundle and try again... but also note that app.make_button is specifically meant for using alert views, so you'll need a bit more than what you have in your some_action method above to get it working.

[andersennl]

Thanks for your fast answer! That was it, the RedAlert gem was missing. Maybe this dependency could be mentioned in the docs: docs

[squidpunch]

sounds like we should require the redalert gem in the rakefile - since its listed as a runtime dependency.

Pushing a PR momentarily. thanks for pointing this out @andersennl