2017-05-24 64 views
-2

上午刚刚安卓开发。在Android Studio 2.2和Android版本6.0中创建了一个应用程序。现在刚更新到android studio 2.3。它不适用于我的手机。Android应用程序崩溃在Nougat

的build.gradle

android { 
    compileSdkVersion 24 
    buildToolsVersion '25.0.0' 
    defaultConfig { 
     applicationId "payment.online.rely.latitude" 
     minSdkVersion 17 
     targetSdkVersion 20 
     versionCode 1 
     versionName "1.0" 
     testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" 
    } 
    buildTypes { 
     release { 
      minifyEnabled false 
      proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 
     } 
    } 
} 

dependencies { 
    compile fileTree(dir: 'libs', include: ['*.jar']) 
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', { 
     exclude group: 'com.android.support', module: 'support-annotations' 
    }) 
    compile 'com.android.support:appcompat-v7:24.2.1' 
    compile 'com.android.support:design:24.2.1' 
    compile 'org.apache.httpcomponents:httpcore:4.4.1' 
    compile 'org.apache.httpcomponents:httpclient:4.5' 



    testCompile 'junit:junit:4.12' 
} 
android { 
    useLibrary 'org.apache.http.legacy' 
} 

MainActivity.Java

import android.location.Address; 
import android.location.Geocoder; 
import android.os.Build; 
import android.os.Bundle; 
import android.support.annotation.RequiresApi; 
import android.support.v7.app.AppCompatActivity; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 
import android.widget.TextView; 

import java.io.IOException; 
import java.util.List; 
import java.util.Locale; 

public class MainActivity extends AppCompatActivity { 
    /** 
    * Called when the activity is first created. 
    */ 

    private static final int LONG_DELAY = 3500; 

    String lat = "", lon = ""; 
    GPSTracker gps; 
    TextView location,citi,statee,pin,cou; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     location = (TextView)findViewById(R.id.address); 
     citi = (TextView)findViewById(R.id.loc); 
     statee = (TextView)findViewById(R.id.sta); 
     pin = (TextView)findViewById(R.id.pin); 
     cou = (TextView)findViewById(R.id.cou); 


     Button btnLocation = (Button) findViewById(R.id.btnLocation); 
     btnLocation.setOnClickListener(new OnClickListener() { 
      @RequiresApi(api = Build.VERSION_CODES.DONUT) 
      public void onClick(View arg0) { 
       gps = new GPSTracker(MainActivity.this); 

       // check if GPS enabled 
       if(gps.canGetLocation()) { 

        double latitude = gps.getLatitude(); 
        double longitude = gps.getLongitude(); 

        Geocoder geocoder; 
        List<Address> addresses; 
        geocoder = new Geocoder(MainActivity.this, Locale.getDefault()); 
        String address = null, subcity = null, city=null,state = null,country = null,postalCode = null; 
        try { 
         addresses = geocoder.getFromLocation(latitude, longitude, 1); 

         address = addresses.get(0).getAddressLine(0); 
         subcity = addresses.get(0).getLocality(); 
         //city = addresses.get(0).getSubAdminArea(); 
         state = addresses.get(0).getAdminArea(); 
         country = addresses.get(0).getCountryName(); 
         postalCode = addresses.get(0).getPostalCode(); 
         String knownName = addresses.get(0).getFeatureName(); // Only if available else return NULL 
        } catch (IOException e) { 
         e.printStackTrace(); 
        } 

        location.setText(address); 
        citi.setText(subcity); 
        statee.setText(state); 
        pin.setText(postalCode); 
        cou.setText(country); 
        // \n is for new line 
        //Toast.makeText(getApplicationContext(), "Your Location is - \nLat: " + gps.getLatitude() + "\nLong: " + gps.getLongitude() + "\nLocation: " + address + "," + " " + subcity +","+"" + 
          // " " + state + "," + " " + postalCode + "," + " " + country, Toast.LENGTH_LONG).show(); 

       }else{ 
        // can't get location 
        // GPS or Network is not enabled 
        // Ask user to enable GPS/network in settings 
        gps.showSettingsAlert(); 
       } 

      } 
     }); 
    } 

} 
enter code here[enter image description here][1] 

GPSTracker.Java

import android.Manifest; 
import android.app.AlertDialog; 
import android.app.Service; 
import android.content.Context; 
import android.content.DialogInterface; 
import android.content.Intent; 
import android.content.pm.PackageManager; 
import android.location.Location; 
import android.location.LocationListener; 
import android.location.LocationManager; 
import android.os.Bundle; 
import android.os.IBinder; 
import android.provider.Settings; 
import android.support.v4.app.ActivityCompat; 
import android.util.Log; 

/** 
* Created by mipstech i5 2 on 20-Apr-17. 
*/ 
public class GPSTracker extends Service implements LocationListener { 

    private final Context mContext; 

    // flag for GPS status 
    boolean isGPSEnabled = false; 

    // flag for network status 
    boolean isNetworkEnabled = false; 

    // flag for GPS status 
    boolean canGetLocation = false; 

    Location location; // location 
    double latitude; // latitude 
    double longitude; // longitude 

    // The minimum distance to change Updates in meters 
    private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10; // 10 meters 

    // The minimum time between updates in milliseconds 
    private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1; // 1 minute 

    // Declaring a Location Manager 
    protected LocationManager locationManager; 

    public GPSTracker(Context context) { 
     this.mContext = context; 
     getLocation(); 
    } 

    public Location getLocation() { 
     try { 
      locationManager = (LocationManager) mContext 
        .getSystemService(LOCATION_SERVICE); 

      // getting GPS status 
      isGPSEnabled = locationManager 
        .isProviderEnabled(LocationManager.GPS_PROVIDER); 

      // getting network status 
      isNetworkEnabled = locationManager 
        .isProviderEnabled(LocationManager.NETWORK_PROVIDER); 

      if (!isGPSEnabled && !isNetworkEnabled) { 
       // no network provider is enabled 
      } else { 
       this.canGetLocation = true; 
       // First get location from Network Provider 
       if (isNetworkEnabled) { 
        locationManager.requestLocationUpdates(
          LocationManager.NETWORK_PROVIDER, 
          MIN_TIME_BW_UPDATES, 
          MIN_DISTANCE_CHANGE_FOR_UPDATES, this); 
        Log.d("Network", "Network"); 
        if (locationManager != null) { 
         if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) { 
          // TODO: Consider calling 
          // ActivityCompat#requestPermissions 
          // here to request the missing permissions, and then overriding 
          // public void onRequestPermissionsResult(int requestCode, String[] permissions, 
          //           int[] grantResults) 
          // to handle the case where the user grants the permission. See the documentation 
          // for ActivityCompat#requestPermissions for more details. 
          return location; 
         } 
         location = locationManager 
           .getLastKnownLocation(LocationManager.NETWORK_PROVIDER); 
         if (location != null) { 
          latitude = location.getLatitude(); 
          longitude = location.getLongitude(); 



         } 
        } 
       } 
       // if GPS Enabled get lat/long using GPS Services 
       if (isGPSEnabled) { 
        if (location == null) { 
         locationManager.requestLocationUpdates(
           LocationManager.GPS_PROVIDER, 
           MIN_TIME_BW_UPDATES, 
           MIN_DISTANCE_CHANGE_FOR_UPDATES, this); 
         Log.d("GPS Enabled", "GPS Enabled"); 
         if (locationManager != null) { 
          location = locationManager 
            .getLastKnownLocation(LocationManager.GPS_PROVIDER); 
          if (location != null) { 
           latitude = location.getLatitude(); 
           longitude = location.getLongitude(); 




          } 
         } 
        } 
       } 
      } 

     } catch (Exception e) { 
      e.printStackTrace(); 
     } 

     return location; 
    } 

    /** 
    * Stop using GPS listener 
    * Calling this function will stop using GPS in your app 
    * */ 
    public void stopUsingGPS(){ 
     if(locationManager != null){ 
      locationManager.removeUpdates(GPSTracker.this); 
     } 
    } 

    /** 
    * Function to get latitude 
    * */ 
    public double getLatitude(){ 
     if(location != null){ 
      latitude = location.getLatitude(); 
     } 

     // return latitude 
     return latitude; 
    } 

    /** 
    * Function to get longitude 
    * */ 
    public double getLongitude(){ 
     if(location != null){ 
      longitude = location.getLongitude(); 
     } 

     // return longitude 
     return longitude; 
    } 

    /** 
    * Function to check GPS/wifi enabled 
    * @return boolean 
    * */ 
    public boolean canGetLocation() { 
     return this.canGetLocation; 
    } 

    /** 
    * Function to show settings alert dialog 
    * On pressing Settings button will lauch Settings Options 
    * */ 
    public void showSettingsAlert(){ 
     AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext); 

     // Setting Dialog Title 
     alertDialog.setTitle("GPS is settings"); 

     // Setting Dialog Message 
     alertDialog.setMessage("GPS is not enabled. Do you want to go to settings menu?"); 

     // On pressing Settings button 
     alertDialog.setPositiveButton("Settings", new DialogInterface.OnClickListener() { 
      public void onClick(DialogInterface dialog,int which) { 
       Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS); 
       mContext.startActivity(intent); 
      } 
     }); 

     // on pressing cancel button 
     alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() { 
      public void onClick(DialogInterface dialog, int which) { 
       dialog.cancel(); 
      } 
     }); 

     // Showing Alert Message 
     alertDialog.show(); 
    } 

    @Override 
    public void onLocationChanged(Location location) { 
    } 

    @Override 
    public void onProviderDisabled(String provider) { 
    } 

    @Override 
    public void onProviderEnabled(String provider) { 
    } 

    @Override 
    public void onStatusChanged(String provider, int status, Bundle extras) { 
    } 

    @Override 
    public IBinder onBind(Intent arg0) { 
     return null; 
    } 

} 
+0

https://stackoverflow.com/questions/43082062/code-will-only-return-0-0-0-0-gps-coordinate-while-throwing-nullpointerexceptio – CommonsWare

+0

什么是实际的错误信息?如果您正在调试应用程序,则应该能够在Android监视器窗口中看到异常(错误详细信息)。 –

+0

没有。不能够opp应用程序。该应用程序崩溃 –

回答

1

快速suggesti on会是:你正在使用构建工具版本25和你的依赖和编译器sdk使用版本24.你可以检查是否解决?

编辑
您试图访问无效索引位置的列表中,你应该确认它是否试图使用它之前的有效指标。

+0

只是改变像这样: –

+0

哦,你应该使用它们之前检查索引位置 –

+0

任何人都可以告诉我,但它的工作在我的Android版本是6.0。现在我只是更新我的手机版本为7.0。它崩溃了 –

0
buildscript { 
    repositories { 
     jcenter() 
    } 
    dependencies { 
     classpath 'com.android.tools.build:gradle:2.3.0' 

     // NOTE: Do not place your application dependencies here; they belong 
     // in the individual module build.gradle files 
    } 
} 

allprojects { 
    repositories { 
     jcenter() 
    } 
} 

task clean(type: Delete) { 
    delete rootProject.buildDir 
} 

您应该更改类路径版本。