/**
* Method handles actions respectively for input coordinate entered in EditText. When coordinate
* argument is Double.NaN it means EditText field is empty, so error will be disabled and target
* location set to null (reset). Proper coordinate argument will be set to customTargetLocation
* and its Location will be passed to compassToLocationProvider. Passing a null will cause
* resetting targetLocation, which is intended. Sets TitleTextView and coordinates EditTexts
* errors status.
*
* @param latitude indicates whether coordinate is latitude or longitude coordinate
* @param coordinate represents value of coordinate in Double
*/
@Override
public void onCoordinateChanged(boolean latitude, Double coordinate) {
// when coordinate is NaN (i.e. when empty EditText)
if (Double.isNaN(coordinate)) {
clearCoordinateInputOutOfRangeError(latitude);
setTitleTextView(getString(R.string.point_north_title), Color.BLACK);
// set null location, so needle will reset its state
compassToLocationProvider.setTargetLocation(null);
return;
}
if (latitude) {
customTargetLocation.setLatitude(coordinate);
} else {
customTargetLocation.setLongitude(coordinate);
}
// even when coordinate is out its of range, then target location will be set to null (reset)
compassToLocationProvider.setTargetLocation(customTargetLocation.getLocation());
if (customTargetLocation.isCorrect()) {
setTitleTextView(getString(R.string.point_location_title), Color.BLACK);
clearCoordinateInputOutOfRangeError(latitude);
}
// incorrect location doesn't mean that input value is incorrect!
if (!Utils.isCoordinateInRange(coordinate, latitude)) {
onEmptyOrWrongInput(latitude, true);
}
}
private void setupLayoutOnLocationServicesCheckUp() {
if (Utils.isLocationServicesEnabled(getActivity())) {
setTitleTextView(getString(R.string.point_north_title), Color.BLACK);
compassToLocationProvider.startIfNotStarted();
setLayoutElementsOnProvider(true);
} else {
setTitleTextView("", Color.BLACK);
compassToLocationProvider.stopIfStarted();
setLayoutElementsOnProvider(false);
buildAndShowLocationServicesDialog();
}
}
@Override
public void onPause() {
super.onPause();
if (compassToLocationProvider != null) {
compassToLocationProvider.stopIfStarted();
}
}
private void setupOnCompassSensorPresenceTest() {
if (!Utils.isCompassSensorPresent(getActivity())) {
setTitleTextView(getString(R.string.compass_not_detected_title), Color.RED);
setSubtitleTextView("", null);
setCoordinatesEditTextEnabled(false);
} else {
compassToLocationProvider = new CompassToLocationProvider(getActivity());
compassToLocationProvider.setCompassToLocationListener(this);
}
}
@Override
public void setLayoutElementsOnProvider(boolean enabled) {
setCoordinatesEditTextEnabled(enabled);
if (enabled) {
setSubtitleTextView(getString(R.string.info_text_subtitle), null);
if (customTargetLocation.isCorrect()) {
compassToLocationProvider.setTargetLocation(customTargetLocation.getLocation());
setTitleTextView(getString(R.string.point_location_title), Color.BLACK);
}
} else {
setTitleTextView(getString(R.string.point_north_title), Color.BLACK);
setSubtitleTextView(
getString(R.string.touch_info_error_subtitle),
v -> setupLayoutOnLocationServicesCheckUp());
}
}