@TargetApi(ApiHelper.VERSION_CODES.ICE_CREAM_SANDWICH)
public static boolean isFocusAreaSupported(Parameters params) {
if (ApiHelper.HAS_CAMERA_FOCUS_AREA) {
return (params.getMaxNumFocusAreas() > 0
&& isSupported(Parameters.FOCUS_MODE_AUTO, params.getSupportedFocusModes()));
}
return false;
}
private void showFlashButton(Parameters params) {
boolean showFlash =
(getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH)
&& params.getFlashMode() != null)
&& params.getSupportedFlashModes() != null
&& params.getSupportedFocusModes().size() > 1;
flashCameraButton.setVisibility(showFlash ? View.VISIBLE : View.INVISIBLE);
}
public void setAutoFocus() {
Parameters params = cam.getParameters();
List<String> focusModes = params.getSupportedFocusModes();
try {
if (focusModes.contains(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE)) {
params.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);
} else if (focusModes.contains(Camera.Parameters.FOCUS_MODE_AUTO)) {
params.setFocusMode(Camera.Parameters.FOCUS_MODE_AUTO);
} else if (focusModes.contains(Camera.Parameters.FOCUS_MODE_INFINITY)) {
params.setFocusMode(Camera.Parameters.FOCUS_MODE_INFINITY);
}
} catch (Exception ex) {
}
}