変数にgetLatitude（）を代入する際の問題

私はトラッキングマップを作成中です。 getDeviceLocationメソッドで、私は割り当てたい：変数にgetLatitude（）を代入する際の問題

prevLat = mLastKnownLocation.getLatitude（）;

prevLng = mLastKnownLocation.getLongitude（）;

ただし、アプリがクラッシュします。私はそれを後で私たちのために割り当てる必要がありますdistanceBetween（）は、すべての場所の変更後に距離を取得します。 killApp（）でアクティビティを終了するときには、すべての距離を合計して合計を求めます。また、それはコメントされているので、アプリをクラッシュします。

全体の活動：

package com.example.micha.aplikacjatreningowa; 


import android.Manifest; 
import android.app.Dialog; 
import android.content.DialogInterface; 
import android.content.Intent; 
import android.content.pm.PackageManager; 
import android.location.Location; 
import android.os.Bundle; 
import android.support.annotation.NonNull; 
import android.support.annotation.Nullable; 
import android.support.v4.app.ActivityCompat; 
import android.support.v4.content.ContextCompat; 
import android.support.v7.app.AlertDialog; 
import android.support.v7.app.AppCompatActivity; 
import android.util.Log; 
import android.view.View; 
import android.widget.Button; 
import android.support.v4.app.DialogFragment; 

import com.google.android.gms.common.ConnectionResult; 
import com.google.android.gms.common.api.GoogleApiClient; 
import com.google.android.gms.location.LocationRequest; 
import com.google.android.gms.location.LocationServices; 
import com.google.android.gms.maps.CameraUpdateFactory; 
import com.google.android.gms.maps.GoogleMap; 
import com.google.android.gms.maps.OnMapReadyCallback; 
import com.google.android.gms.maps.SupportMapFragment; 
import com.google.android.gms.maps.model.CameraPosition; 
import com.google.android.gms.maps.model.LatLng; 


import static android.location.Location.distanceBetween; 
import static java.lang.Math.pow; 

public class MapActivity extends AppCompatActivity implements  OnMapReadyCallback, com.google.android.gms.location.LocationListener, 
    GoogleApiClient.ConnectionCallbacks, 
    GoogleApiClient.OnConnectionFailedListener { 


private static final String TAG = MapActivity.class.getSimpleName(); 
private GoogleMap mMap; 
private GoogleApiClient mGoogleApiClient; 
private LocationRequest mLocationRequest; 
private CameraPosition mCameraPosition; 

private static final int DEFAULT_ZOOM = 20; 
private static final int PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION = 1; 
private boolean mLocationPermissionGranted = false; 

private Location mLastKnownLocation; 

private static final String KEY_CAMERA_POSITION = "camera_position"; 
private static final String KEY_LOCATION = "location"; 

private static final int UPDATE_INTERVAL = 1000; 
private static final int FASTEST_INTERVAL = 500; 
private static final int DISPLACEMENT = 1; 

public double prevLat; 
public double prevLng; 

float totalDistance; 
float[] distance; 
float[] cBurned; 
Float totalCalories; 

public Button End; 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    //Ustalanie mapy 
    setContentView(R.layout.activity_map); 

    //Budowanie klienta API do użytku w wyznaczaniu położenia 
    mGoogleApiClient = new GoogleApiClient.Builder(this) 
      .enableAutoManage(this, this) 
      .addConnectionCallbacks(this) 
      .addApi(LocationServices.API) 
      .build(); 
    mGoogleApiClient.connect(); 

    createLocationRequest(); 
    endButton(); 
} 

//Zapisuje stan aplikacji 
protected void onSaveInstanceState(Bundle outState) { 
    if (mMap != null) { 
     outState.putParcelable(KEY_CAMERA_POSITION, mMap.getCameraPosition()); 
     outState.putParcelable(KEY_LOCATION, mLastKnownLocation); 
     super.onSaveInstanceState(outState); 
    } 
} 

@Override 
public void onConnected(@Nullable Bundle bundle) { 
    SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map); 
    mapFragment.getMapAsync(this); 
} 

//Gdy połączenie się nie uda 
public void onConnectionFailed(@NonNull ConnectionResult result) { 
    Log.d(TAG, "Połączenie nieudane: ConnectionResult.getErrorCode() = " + result.getErrorCode()); 
} 

//Gdy połączenie zostanie wstrzymane 
public void onConnectionSuspended() { 
    Log.d(TAG, "Połączenie wstrzymane"); 
} 

//Pobieranie lokacji użytkownika 
private void getDeviceLocation() { 
    //Prośba o pozwolenie na zczytanie lokacji urządzenia 
    if (ContextCompat.checkSelfPermission(this.getApplicationContext(), Manifest.permission.ACCESS_FINE_LOCATION) 
      != PackageManager.PERMISSION_GRANTED) { 
    } else { 
     ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, 
       PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION); 
    } 

    //Pobranie lokacji urządzenia 
    if (mLocationPermissionGranted) { 
     mLastKnownLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient); 
     if(mLastKnownLocation != null) { 
      prevLat=mLastKnownLocation.getLatitude(); 
      prevLng=mLastKnownLocation.getLongitude(); 
     } 
    } 

    moveCamera(); 
} 

//Po otrzymaniu pozwolenia 
@Override 
public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) { 
    mLocationPermissionGranted = false; 
    switch (requestCode) { 
     case PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION: { 
      if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { 
       mLocationPermissionGranted = true; 
      } 
     } 
    } 
    updateLocationUI(); 
} 

//Gdy mapa jest już gotowa 
@Override 
public void onMapReady(GoogleMap map) { 
    mMap=map; 
    updateLocationUI(); 
    getDeviceLocation(); 
    startLocationUpdates(); 
} 

private void updateLocationUI() { 
    if (mMap == null) { 
     return; 
    } 

    if (ContextCompat.checkSelfPermission(this.getApplicationContext(), Manifest.permission.ACCESS_FINE_LOCATION) 
      == PackageManager.PERMISSION_GRANTED) { 
     mLocationPermissionGranted = true; 
    } else { 
     ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, 
       PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION); 
    } 

    if (mLocationPermissionGranted) { 
     mMap.setMyLocationEnabled(true); 
    } else { 
     mMap.setMyLocationEnabled(false); 
     mLastKnownLocation = null; 
    } 
} 

protected void startLocationUpdates() { 
    if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != 
      PackageManager.PERMISSION_GRANTED && ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) 
      != PackageManager.PERMISSION_GRANTED) { 
     ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, 
       PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION); 
    } 
    LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this); 
} 

@Override 
public void onLocationChanged(Location location) { 
    moveCamera(); 
    float velocity = location.getSpeed(); 
    float caloriesBurned; 
    String extra = getIntent().getStringExtra("EXTRA_MODE_TYPE"); 
    switch (extra) { 
     case"walk": { 
      distanceBetween(prevLat, prevLng, location.getLatitude(), location.getLongitude(), distance); 
      prevLat=location.getLatitude(); 
      prevLng=location.getLongitude(); 
      double dbcaloriesBurned =(0.0215*pow(velocity*3600/1000, 3)-0.1765*pow(velocity*3600/1000, 2)+0.8710* + 1.4577*velocity*3600/1000); 
      caloriesBurned = (float)dbcaloriesBurned; 
      int count = 0; 
      cBurned[count] = caloriesBurned; 
      count++; 
      if (velocity > 2) { 
       killApp(); 
      } 
      break; 
     } 
     case "run": { 
      distanceBetween(prevLat, prevLng, location.getLatitude(), location.getLongitude(), distance); 
      prevLat = location.getLatitude(); 
      prevLng = location.getLongitude(); 
      double dbcaloriesBurned = (0.0215 * pow(velocity * 3600/1000, 3) - 0.1765 * pow(velocity * 3600/1000, 2) + 0.8710 * +1.4577 * velocity * 3600/1000); 
      caloriesBurned = (float) dbcaloriesBurned; 
      int count = 0; 
      cBurned[count] = caloriesBurned; 
      count++; 
      if (velocity > 3) { 
       killApp(); 
      } 
      break; 
     } 
     case "ride": { 
      distanceBetween(prevLat, prevLng, location.getLatitude(), location.getLongitude(), distance); 
      prevLat = location.getLatitude(); 
      prevLng = location.getLongitude(); 
      double dbcaloriesBurned = (0.0215 * pow(velocity * 3600/1000, 3) - 0.1765 * pow(velocity * 3600/1000, 2) + 0.8710 * +1.4577 * velocity * 3600/1000); 
      caloriesBurned = (float) dbcaloriesBurned; 
      int count = 0; 
      cBurned[count] = caloriesBurned; 
      count++; 
      if (velocity > 5) { 
       killApp(); 
      } 
      break; 
     } 
    } 
} 

protected void createLocationRequest() { 
    mLocationRequest = new LocationRequest(); 
    mLocationRequest.setInterval(UPDATE_INTERVAL); 
    mLocationRequest.setFastestInterval(FASTEST_INTERVAL); 
    mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY); 
    mLocationRequest.setSmallestDisplacement(DISPLACEMENT); 
} 

public void endButton(){ 
    End = (Button)findViewById(R.id.End); 
    End.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      killApp(); 
     } 
    }); 
} 

public void moveCamera() { 
    if (mCameraPosition != null) { 
     mMap.moveCamera(CameraUpdateFactory.newCameraPosition(mCameraPosition)); 
    } else if (mLastKnownLocation != null) { 
     mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(mLastKnownLocation.getLatitude(), 
       mLastKnownLocation.getLongitude()), DEFAULT_ZOOM)); 
    } 
} 

public void killApp() { 
    stopLocationUpdates(); 
    /*for(int i=0; i<=distance.length; i++) { 
     totalDistance += distance[i]; 
    } 
    for(int j=0; j<cBurned.length; j++) { 
     totalCalories += cBurned[j]; 
    }*/ 
    AlertDialog.Builder builder = new AlertDialog.Builder(MapActivity.this); 
    builder.setMessage("Koniec treningu!\nPrzebiegłeś: " + totalDistance +" metrów.\nSpaliłeś: " + totalCalories +" kalorii.") 
      .setCancelable(false) 
      .setPositiveButton("Zakończ", new DialogInterface.OnClickListener() { 
       public void onClick(DialogInterface dialog, int id) { 
        finish(); 
       } 
      }) 
      .create().show(); 
} 

protected void stopLocationUpdates() { 
    LocationServices.FusedLocationApi.removeLocationUpdates(
      mGoogleApiClient, this); 
} 

@Override 
public void onConnectionSuspended(int i) { 

} 
}

編集：クラッシュログ：

                    --------- beginning of crash 
05-24 22:16:57.509 2930-2930/com.example.micha.aplikacjatreningowa E/AndroidRuntime: FATAL EXCEPTION: main 
                       Process: com.example.micha.aplikacjatreningowa, PID: 2930 
                       java.lang.SecurityException: Client must have ACCESS_FINE_LOCATION permission to request PRIORITY_HIGH_ACCURACY locations. 
                        at android.os.Parcel.readException(Parcel.java:1599) 
                        at android.os.Parcel.readException(Parcel.java:1552) 
                        at com.google.android.gms.internal.zzase$zza$zza.zza(Unknown Source) 
                        at com.google.android.gms.internal.zzasg.zza(Unknown Source) 
                        at com.google.android.gms.internal.zzash.zza(Unknown Source) 
                        at com.google.android.gms.internal.zzary$1.zza(Unknown Source) 
                        at com.google.android.gms.internal.zzary$1.zza(Unknown Source) 
                        at com.google.android.gms.internal.zzaad$zza.zzb(Unknown Source) 
                        at com.google.android.gms.internal.zzaaq.zze(Unknown Source) 
                        at com.google.android.gms.internal.zzaaq.zzb(Unknown Source) 
                        at com.google.android.gms.internal.zzaav.zzb(Unknown Source) 
                        at com.google.android.gms.internal.zzaat.zzb(Unknown Source) 
                        at com.google.android.gms.internal.zzary.requestLocationUpdates(Unknown Source) 
                        at com.example.micha.aplikacjatreningowa.MapActivity.startLocationUpdates(MapActivity.java:187) 
                        at com.example.micha.aplikacjatreningowa.MapActivity.onMapReady(MapActivity.java:156) 
                        at com.google.android.gms.maps.SupportMapFragment$zza$1.zza(Unknown Source) 
                        at com.google.android.gms.maps.internal.zzt$zza.onTransact(Unknown Source) 
                        at android.os.Binder.transact(Binder.java:387) 
                        at com.google.android.gms.maps.internal.bw.a(:com.google.android.gms.DynamiteModulesB:82) 
                        at com.google.maps.api.android.lib6.impl.bf.run(:com.google.android.gms.DynamiteModulesB:1805) 
                        at android.os.Handler.handleCallback(Handler.java:739) 
                        at android.os.Handler.dispatchMessage(Handler.java:95) 
                        at android.os.Looper.loop(Looper.java:148) 
                        at android.app.ActivityThread.main(ActivityThread.java:5417) 
                        at java.lang.reflect.Method.invoke(Native Method) 
                        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
                        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

編集2：アプリケーションが原因startLocationUpdates（）メソッド

出典

2017-05-24 MEsiex

。それらを編集してください。 – nukeforum

申し訳ありませんが、私はクラッシュレポートを追加しました。必要に応じてログ全体を提供することができます – MEsiex

のクラッシュあなたは正しくアンドロイドランタイム許可を処理していませんあなたが条件 Manifest.permission.ACCESS_FINE_LOCATION == PackageManager.PERMISSION_GRANTEDが真であるときに許可を要求しているからです。もう一度コードをチェックしてください。

String permission = Manifest.permission.ACCESS_FINE_LOCATION; 
if (!isPermissionGranted(permission)) { 

    if (isRationaleExplanationNeeded(permission)) { 
    //show dialog to explain why you need permission 
    } else { 
    ActivityCompat.requestPermissions(this, new String[]{permission}, 
      PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION); 
    } 
} else { 
    //do what ever you need to do 
}

私はあなたが原因ではない許可権限のセキュリティ例外を取得していることを前提としています

あなたはこのような何かを行う必要があります。上記と呼ば

機能：我々はクラッシュログを持っていない場合我々は本当に助けることができない

private boolean isPermissionGranted(String permission) { 
    int hasRequestedPermission = ContextCompat.checkSelfPermission(this, permission); 

    return hasRequestedPermission == PackageManager.PERMISSION_GRANTED; 
} 

private boolean isRationaleExplanationNeeded(String permission) { 
    return ActivityCompat.shouldShowRequestPermissionRationale(activity, permission); 
}

出典

2017-05-24 22:07:13 TheTechWolf

'isPermissionGranted'関数は、 'ContextCompat.checkSelfPermission（this、permission） == PackageManager.PERMISSION_GRANTED'がbooleanである間、 'hasRequestedPermission'がint型であるため互換性のない型になります。 – MEsiex

これで修正されました。 – TheTechWolf

いくつかのテストの後、私は問題が適切に定義されたテーブルの距離とcBurnedに接続されていないことを発見した後、助けてくれてありがとう。彼らは空だったので、すべての場所の変更で大きくなることはありません。 – MEsiex

変数にgetLatitude（）を代入する際の問題

答えて

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