On Mar 6, 7:42 pm, Mark Murphy <[email protected]> wrote: > Why not set your build target to API Level 14 and just call the > method, wrapping your calls in a Build.VERSION.SDK_INT check? Why are > you messing around with reflection games?
hi Mark I copied the code template from some old code found online. I wasn't aware of Build.VERSION.SDK_INT. It is definitely the better way to go. thanks a lot Qianqian > > > > On Wed, Mar 6, 2013 at 7:21 PM, Qianqian Fang <[email protected]> wrote: > > hi list > > > I am working on a camera program where I want to call setAutoExposureLock() > > is supported. To make this backward compatible, I used some sample code I > > found online to check the presence of this method first. The code snippet is > > below: > > > ... > > try{ > > Class c = Class.forName("android.hardware.Camera"); > > > Method spcwb = null; > > Method[] m = c.getMethods(); > > for (int i = 0; i < m.length; i++) { > > if (m[i].getName().compareTo("setAutoExposureLock") == 0) { > > spcwb = m[i]; > > break; > > } > > } > > if (spcwb != null) { > > Object[] arglist = new Object[1]; > > arglist[0] = tf; > > spcwb.invoke(cm, arglist); > > Log.i(TAG, "setAutoExposureLock: Called method"); > > } else { > > Log.i(TAG, "setAutoExposureLock: Did not find method"); > > } > > }catch(...){...} > > > however, I tried this on both Nexus S (ICS 4.1) and Nexus 4 (ICS 4.2), the > > above code returned "not found". Shouldn't setAutoExposureLock be supported > > by 4.0.3 and newer? I directly called this method for my Nexus 4, it worked. > > But I'd like to make this work for older phones. > > > I changed the class name to "android.hardware.Camera.Parameters", it did not > > help. > > > did I miss anything? > > > Qianqian > > > -- > > -- > > You received this message because you are subscribed to the Google > > Groups "Android Developers" group. > > To post to this group, send email to [email protected] > > To unsubscribe from this group, send email to > > [email protected] > > For more options, visit this group at > >http://groups.google.com/group/android-developers?hl=en > > --- > > You received this message because you are subscribed to the Google Groups > > "Android Developers" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to [email protected]. > > For more options, visithttps://groups.google.com/groups/opt_out. > > -- > Mark Murphy (a Commons > Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy > > _The Busy Coder's Guide to Android Development_ Version 4.6 Available! -- -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
