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このファイルを2つのファイルに分割する方法がわかりません。私はGPSTracking.java MainActivity.javaから電話をしたいと思います。 MainActivity.javaとGPSTracking.javaが、私は実際にこれら二つに分割する方法を見つけ出すことはできません。 MainActivity.javaのAndroid GPS GPS追跡ファイル
この
は、私は2つのファイルを必要とする私はpublic class MainActivity extends AppCompatActivity implements LocationListener {
final String TAG = "GPS";
private final static int ALL_PERMISSIONS_RESULT = 101;
private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10;
private static final long MIN_TIME_BW_UPDATES = 1000 * 60;
TextView tvLatitude, tvLongitude;
LocationManager locationManager;
Location loc;
ArrayList<String> permissions = new ArrayList<>();
ArrayList<String> permissionsToRequest;
ArrayList<String> permissionsRejected = new ArrayList<>();
boolean isGPS = false;
boolean isNetwork = false;
boolean canGetLocation = true;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tvLatitude = (TextView) findViewById(R.id.tvLatitude);
tvLongitude = (TextView) findViewById(R.id.tvLongitude);
locationManager = (LocationManager) getSystemService(Service.LOCATION_SERVICE);
isGPS = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
isNetwork = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
permissionsToRequest = findUnAskedPermissions(permissions);
if (!isGPS && !isNetwork) {
Log.d(TAG, "Connection off");
showSettingsAlert();
getLastLocation();
} else {
Log.d(TAG, "Connection on");
// check permissions
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (permissionsToRequest.size() > 0) {
requestPermissions(permissionsToRequest.toArray(new String[permissionsToRequest.size()]),
ALL_PERMISSIONS_RESULT);
Log.d(TAG, "Permission requests");
canGetLocation = false;
}
}
// get location
getLocation();
}
}
@Override
public void onLocationChanged(Location location) {
Log.d(TAG, "onLocationChanged");
updateUI(location);
}
@Override
public void onStatusChanged(String s, int i, Bundle bundle) {
}
@Override
public void onProviderEnabled(String s) {
getLocation();
}
@Override
public void onProviderDisabled(String s) {
if (locationManager != null) {
locationManager.removeUpdates(this);
}
}
private void getLocation() {
try {
if (canGetLocation) {
Log.d(TAG, "Can get location");
if (isGPS) {
// from GPS
Log.d(TAG, "GPS on");
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
if (locationManager != null) {
loc = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (loc != null)
updateUI(loc);
}
} else if (isNetwork) {
// from Network Provider
Log.d(TAG, "NETWORK_PROVIDER on");
locationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
if (locationManager != null) {
loc = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (loc != null)
updateUI(loc);
}
} else {
loc.setLatitude(0);
loc.setLongitude(0);
updateUI(loc);
}
} else {
Log.d(TAG, "Can't get location");
}
} catch (SecurityException e) {
e.printStackTrace();
}
}
private void getLastLocation() {
try {
Criteria criteria = new Criteria();
String provider = locationManager.getBestProvider(criteria, false);
Location location = locationManager.getLastKnownLocation(provider);
Log.d(TAG, provider);
Log.d(TAG, location == null ? "NO LastLocation" : location.toString());
} catch (SecurityException e) {
e.printStackTrace();
}
}
private ArrayList findUnAskedPermissions(ArrayList<String> wanted) {
ArrayList result = new ArrayList();
for (String perm : wanted) {
if (!hasPermission(perm)) {
result.add(perm);
}
}
return result;
}
private boolean hasPermission(String permission) {
if (canAskPermission()) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
return (checkSelfPermission(permission) == PackageManager.PERMISSION_GRANTED);
}
}
return true;
}
private boolean canAskPermission() {
return (Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP_MR1);
}
@TargetApi(Build.VERSION_CODES.M)
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
switch (requestCode) {
case ALL_PERMISSIONS_RESULT:
Log.d(TAG, "onRequestPermissionsResult");
for (String perms : permissionsToRequest) {
if (!hasPermission(perms)) {
permissionsRejected.add(perms);
}
}
if (permissionsRejected.size() > 0) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (shouldShowRequestPermissionRationale(permissionsRejected.get(0))) {
showMessageOKCancel("These permissions are mandatory for the application. Please allow access.",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
requestPermissions(permissionsRejected.toArray(
new String[permissionsRejected.size()]), ALL_PERMISSIONS_RESULT);
}
}
});
return;
}
}
} else {
Log.d(TAG, "No rejected permissions.");
canGetLocation = true;
getLocation();
}
break;
}
}
public void showSettingsAlert() {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(this);
alertDialog.setTitle("GPS is not Enabled!");
alertDialog.setMessage("Do you want to turn on GPS?");
alertDialog.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(intent);
}
});
alertDialog.setNegativeButton("No", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
alertDialog.show();
}
private void showMessageOKCancel(String message, DialogInterface.OnClickListener okListener) {
new AlertDialog.Builder(MainActivity.this)
.setMessage(message)
.setPositiveButton("OK", okListener)
.setNegativeButton("Cancel", null)
.create()
.show();
}
public String formatValue(double d){
String dStr = String.valueOf(d);
String value = dStr.matches("\\d+\\.\\d*[1-9]\\d*") ? dStr : dStr.substring(0,dStr.indexOf("."));
return value;
}
private void updateUI(Location loc) {
Log.d(TAG, "updateUI");
double latitude = loc.getLatitude();
double longitude = loc.getLongitude();
tvLatitude.setText(formatValue(latitude));
tvLongitude.setText(formatValue(longitude));
}
@Override
protected void onDestroy() {
super.onDestroy();
if (locationManager != null) {
locationManager.removeUpdates(this);
}
android.os.Process.killProcess(android.os.Process.myPid());
super.onDestroy();
}
}
を分割する必要がファイルでありますファイル。ありがとうございます！
GPSTrackingクラスにすべての位置関連コードを入れます。また、GPSTrackingでインターフェイスを定義します。このインタフェースには、ロケーションイベント（onLocationChangedなど）に関連するメソッドとアクセス権（主に必要なもの）が必要です。その後、MainActivityのインターフェイスを実装します。ここでの目的は、MainActivityとGPSTrackingを話せるようにすることです。 – Blackkara