Android Camera API ISO Setting?

Question

Would anyone know where to control the ISO setting for the camera from in the Android SDK ? It should be possible as the native camera application on the HTC Desire has ISO

Answer 1

By now (KK 4.4.2) android has no official APIs to manage ISO.
ISO management is a totally device dependant matter, and 8/18 devices i tested so far doesn't support ISO settings at all.
Investigate Camera.getParameters().flatten() String to check valid keywords, every device can use different keywords!!
Most devices use "iso-values" keyword to define a comma separated list-of-possible-values to use with "iso" keyword, like this:

param.set("iso", valid_value_from_list);

Some other devices uses "iso-mode-values" and "iso" keywords (Galaxy Nexus).
I found also a device that uses "iso-speed-values" and "iso-speed" (Micromax A101).
Another one that make me sad is "nv-picture-iso-values" -> "nv-picture-iso" (LG dual P990).

Follow szia answer on how to use these keywords.

Here's some code i use to get a list of valid values using known keywords:

String flat = param.flatten();
String[] isoValues = null;
String values_keyword=null;
String iso_keyword=null;
if(flat.contains("iso-values")) {
    // most used keywords
    values_keyword="iso-values";
    iso_keyword="iso";
} else if(flat.contains("iso-mode-values")) {
    // google galaxy nexus keywords
    values_keyword="iso-mode-values";
    iso_keyword="iso";
} else if(flat.contains("iso-speed-values")) {
    // micromax a101 keywords
    values_keyword="iso-speed-values";
    iso_keyword="iso-speed";
} else if(flat.contains("nv-picture-iso-values")) {
    // LG dual p990 keywords
    values_keyword="nv-picture-iso-values";
    iso_keyword="nv-picture-iso";
}
// add other eventual keywords here...
if(iso_keyword!=null) {
    // flatten contains the iso key!!
    String iso = flat.substring(flat.indexOf(values_keyword));
    iso = iso.substring(iso.indexOf("=")+1);

    if(iso.contains(";")) iso = iso.substring(0, iso.indexOf(";"));

    isoValues = iso.split(",");

} else {
    // iso not supported in a known way
}