[iPhone] updated README to XCode4 way of importing projects

git-svn-id: https://zxing.googlecode.com/svn/trunk@1729 59b500cc-1b3d-0410-9834-0bbf25fbcc57

iphone/README

@@ -1,43 +1,53 @@
 ZXing for iOS is a sub-project of zxing project partially maintained by 
-independent developers. As of 2nd of June 2010, it contains 3 iOS projects:
-  - BarCodes: Original zxing iOS app. Available on app store. However, the code is currently not maintained and does not build
+independent developers. As of 26th of MArch 2011, it contains 3 iOS projects:
+  - BarCodes:  Zxing iOS app. Available on app store. 
   - ZXingWidget: a Library that can be included in any iOS app
-  - ScanTest: a simple test app for ZXingWidget
+  - ScanTest: a simple demo app for ZXingWidget
 
 
-How to include ZXingWidget in a easy and clean way:
+How to include ZXingWidget in a easy and clean way (in XCode4):
 ====================================================
 
   1. Locate the "ZXingWidget.xcodeproj" file under "`zxing/iphone/ZXingWidget/`". Drag ZXingWidget.xcodeproj and
      drop it onto the root of your Xcode project's "Groups and Files"  sidebar.  A dialog will
      appear -- make sure "Copy items" is unchecked and "Reference Type" is "Relative to Project"
-     before clicking "Add".    
+     before clicking "Add". Alternatively you can right-click on you project navigator and select 'Add files to "MyProject"'  
    
-  2. Now you need to link the ZXingWidget static library to your project.  Click the "ZXingWidget.xcodeproj" 
-	 item that has just been added to the sidebar.  Under the "Details" table, you will see a single
-	 item: ZXingWidget.a.  Check the checkbox on the far right of ZXingWidget.a.
+  2. Now you need to link the ZXingWidget static library to your project.  To do that,
+      a. select you project file in the project navigator
+      b. In the second column, select your _target_ and not the project itself  
+      c. Go to the 'build phases' tab, expand the 'link binary with libraries' section,
+			d. Click the add button A dialog will appear and you should see libZXingWidget.a in the very first possibilities
   
   3. Now you need to add ZXingWidget as a dependency of your project, so Xcode compiles it whenever
-	 you compile your project.  Expand the "Targets" section of the sidebar and double-click your
-	 application's target.  Under the "General" tab you will see a "Direct Dependencies" section. 
-	 Click the "+" button, select "ZXingWidget", and click "Add Target"
+	 you compile your project. 
+	    a. like in substep c. of previous step, you nedd to do that in the 'build phases' tab of your target
+	    b. Expand the 'Target Dependencies' section
+	    c. Click the add Button and a dialog will appear select ZXingWidget target
   
-  4. Headers search path 1: you need to tell your project where to find the ZXingWidget headers.  Open your
-	 "Project Settings" and go to the "Build" tab. Look for "Header Search Paths" and double-click
+  4. Headers search path 1: you need to tell your project where to find the ZXingWidget headers. Select your project in the 
+     project navigator, and the select your target and go to the "Build Settings" tab. Look for "Header Search Paths" and double-click
 	 it.  Add the relative path from your project's directory to the
 	 "zxing/iphone/ZXingWidget/Classes" directory. Make sure you click the checkbox "recursive path" ! 
+  
   5. Headers search path 2: You need to add zxing cpp headers to your headers search path, do this similarly as previous step to point the path to cpp/core/src/ where the 'zxing' directory is. You don't need to make this search path recursive so do not check the "recursive path" option
 
-	6. Import the following iOS frameworks: AVFoundation, AudioToolbox, CoreVideo, CoreMedia and libiconv
+	6. Import the following iOS frameworks: 
+	   a. AVFoundation
+	   b. AudioToolbox
+	   c. CoreVideo
+	   d. CoreMedia
+	   e. libiconv
+	   This must be done by adding them in the 'Link Libraries with Binary' just like step 2.c.
  
   7. You're almost ready to go ..
   
-  8. #import <ZXingWidgetController.h> from a file
+  8. #import <ZXingWidgetController.h> in a source file
   
   9. #import <QRCodeReader.h> for example because you will need to inject a barcode reader into ZXingWidgetController. 
 
   10. MAKE SURE the file in which you are using the code deader is a .mm because you are now silently including some c++ code. If you don't do so then
-     the compiler will cry as if it does not find some files !
+     the compiler may cry as if it does not find some files !
 
   11. It should work :)