私はJava言語を使い慣れていないし、ちょっと立ち往生しています。私はString Bob
に場所を渡そうとしています。私はonLocationChanged
メソッドからをメソッド外のString url
に渡す必要があります。 global variable
を作成しましたが、String bob
にはデータがありません。メソッド外の文字列に情報を渡すには?
ご協力いただければ幸いです。
public class MainActivity extends AppCompatActivity {
String bob = "";
LocationManager locationManager;
LocationListener locationListener;
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener);}
}
}
TextView tempTextView;
TextView dateTextView;
TextView weatherDescTextView;
TextView cityTextView;
ImageView weatherImageView;
@RequiresApi(api = Build.VERSION_CODES.N)
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tempTextView = (TextView) findViewById(R.id.tempTextView);
dateTextView = (TextView) findViewById(R.id.dateTextView);
weatherDescTextView = (TextView) findViewById(R.id.weatherDescTextView);
cityTextView = (TextView) findViewById(R.id.cityTextView);
weatherImageView = (ImageView) findViewById(R.id.weatherImageView);
dateTextView.setText(getCurrentDate());
// location
locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
locationListener = new LocationListener() {
@Override
public void onLocationChanged(Location location) {
// Log.i("Location", location.toString());
Geocoder geocoder = new Geocoder(getApplicationContext(), Locale.getDefault());
try {
List<Address> listAddresses = geocoder.getFromLocation(location.getLatitude(), location.getLongitude(), 1);
if (listAddresses != null && listAddresses.size() > 0) {
//Log.i("PlaceInfo", listAddresses.get(0).toString());
if (listAddresses.get(0).getLocality() != null)
{
bob += listAddresses.get(0).getLocality() + " ";
}
Log.i("hello", bob.toString());
}
} catch (IOException e) {
e.printStackTrace();
}
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
@Override
public void onProviderEnabled(String provider) {
}
@Override
public void onProviderDisabled(String provider) {
}
};
String url = "http://api.openweathermap.org/data/2.5/weather?q=" +bob+ "&units=metric&appid=xxxx";