Re: Kawa on Android - problems with setting text properties using "text:"

[Benny Tsai <benny dot tsai at gmail dot com>]

Hi Per,

Thank you for your response.  In the interest of reducing the number
of emails sent back and forth, I'll consolidate my reports on both
issues in my other problem thread.

On Fri, Mar 18, 2011 at 5:52 PM, Per Bothner <per@bothner.com> wrote:
> Sorry I didn't answer this before.
>
> On 03/09/2011 07:57 AM, Benny Tsai wrote:
>>
>> However, I could use some help with an issue. ?When compiling (using
>> "ant debug") the following "Hello World" code (as described here:
>> http://per.bothner.com/blog/2010/AndroidHelloScheme/):
>>
>> (require 'android-defs)
>> (activity hello
>> ? (on-create-view
>> ? ?(android.widget.TextView (this)
>> ? ? text:
>> ? ? "Hello, Android from Kawa Scheme!")))
>>
>> ... the compilation fails with the following error:
>>
>> [java] c:\Android\KawaHello\src\kawa\android\hello.scm:6:5: type
>> constant-string is incompatible with required type int
>>
>> Line 6 is where I pass in the "Hello..." string to "text:". ?I've read
>> that "text:" directs the compiler to look for "setText" and "addText"
>> methods. ?Looking at the TextView API, I see that there are multiple
>> setText() methods, the first of which is setText(int resid). ?Is the
>> compiler matching on that, and therefore expecting an int arg instead
>> of a String arg to "text:"?
>
> The compiler tried to find the best match, using an approximation of
> the Java algorithm. ?In this case, it selects:
> ?android.widget.TextView.setText(java.lang.CharSequence)void
>
>> This is extra puzzling to me because I've read Peter Feigl's recent
>> messages about Kawa on Android, and his test activity code appears to
>> use "text:" with Strings with no problems.
>
> Likewise ...
>
>> Here are some information on my environment. ?Please let me know if
>> any additional info is needed.
>>
>> Windows XP (SP3)
>> Sun JDK 1.6.0_24
>> Ant 1.8.2
>> Kawa 1.11, source from SVN trunk, revision 6919, compiled with "ant
>> -Denable-android=true"
>> Android SDK Tools, revision 10
>> Android SDK Platform-tools, revision 3
>> SDK Platform Android 2.2, API 8, revision 2 (also tried targeting
>> Android 2.3.3, API 10, revision 1, same problem occurs)
>
> I'm testing on Fedora GNU/Linux, using Java 1.6.0_24-b07,
> SVN sources compiled with ?ant -Denable-android=true,
> ANDROID_PLATFORM=android-8, Android SDK Tools Revision 6
> Project Target: Android 2.2.
> --
> ? ? ? ?--Per Bothner
> per@bothner.com ? http://per.bothner.com/
>