private void updateHardKeyboards() {
mHardKeyboardPreferenceList.clear();
if (getResources().getConfiguration().keyboard == Configuration.KEYBOARD_QWERTY) {
final int[] devices = InputDevice.getDeviceIds();
for (int i = 0; i < devices.length; i++) {
InputDevice device = InputDevice.getDevice(devices[i]);
if (device != null && !device.isVirtual() && device.isFullKeyboard()) {
final String inputDeviceDescriptor = device.getDescriptor();
final String keyboardLayoutDescriptor =
mIm.getCurrentKeyboardLayoutForInputDevice(inputDeviceDescriptor);
final KeyboardLayout keyboardLayout =
keyboardLayoutDescriptor != null
? mIm.getKeyboardLayout(keyboardLayoutDescriptor)
: null;
final PreferenceScreen pref = new PreferenceScreen(getActivity(), null);
pref.setTitle(device.getName());
if (keyboardLayout != null) {
pref.setSummary(keyboardLayout.toString());
} else {
pref.setSummary(R.string.keyboard_layout_default_label);
}
pref.setOnPreferenceClickListener(
new Preference.OnPreferenceClickListener() {
@Override
public boolean onPreferenceClick(Preference preference) {
showKeyboardLayoutDialog(inputDeviceDescriptor);
return true;
}
});
mHardKeyboardPreferenceList.add(pref);
}
}
}
if (!mHardKeyboardPreferenceList.isEmpty()) {
for (int i = mHardKeyboardCategory.getPreferenceCount(); i-- > 0; ) {
final Preference pref = mHardKeyboardCategory.getPreference(i);
if (pref.getOrder() < 1000) {
mHardKeyboardCategory.removePreference(pref);
}
}
Collections.sort(mHardKeyboardPreferenceList);
final int count = mHardKeyboardPreferenceList.size();
for (int i = 0; i < count; i++) {
final Preference pref = mHardKeyboardPreferenceList.get(i);
pref.setOrder(i);
mHardKeyboardCategory.addPreference(pref);
}
getPreferenceScreen().addPreference(mHardKeyboardCategory);
} else {
getPreferenceScreen().removePreference(mHardKeyboardCategory);
}
}
private boolean haveInputDeviceWithVibrator() {
final int[] devices = InputDevice.getDeviceIds();
for (int i = 0; i < devices.length; i++) {
InputDevice device = InputDevice.getDevice(devices[i]);
if (device != null && !device.isVirtual() && device.getVibrator().hasVibrator()) {
return true;
}
}
return false;
}