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

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