Android gps 以编程方式打开和关闭

Question

我编写了一个简单的 gps 代码，它在某些设备（比如 moto g）中以编程方式打开和关闭 gps，但在某些旧版本或三星二重奏和其他一些设备上它没有以编程方式打开 gps。 请帮我解决这个问题，

如果gps开启成功我会得到纬度和经度，所以我会用它

提前致谢

您必须从清单文件中降低您的 API 级别

Answer 1

请根据您的要求进行更改。

GPS 转向

    private void turnGPSOn() 
{

    String provider = android.provider.Settings.Secure.getString(getContentResolver(),android.provider.Settings.Secure.LOCATION_PROVIDERS_ALLOWED);
    if (!provider.contains("gps")) 
    { 
        final Intent poke = new Intent();
        poke.setClassName("com.android.settings","com.android.settings.widget.SettingsAppWidgetProvider");
        poke.addCategory(Intent.CATEGORY_ALTERNATIVE);
        poke.setData(Uri.parse("3"));
        sendBroadcast(poke);
    }
}

停止 GPS 并获得更长的纬度

此代码用于停止 gps

LocationUtil locationUtil = new LocationUtil(getApplicationContext());
                        locationUtil.stopUsingGPS();
 if (statusOfGPS) {

         Intent intent = new Intent("android.location.GPS_ENABLED_CHANGE");
         intent.putExtra("enabled", false);
         sendBroadcast(intent);
    }

     String provider = Settings.Secure.getString(getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED);
     if(provider.contains("gps"))
     { //if gps is enabled
         final Intent poke = new Intent();
         poke.setClassName("com.android.settings", "com.android.settings.widget.SettingsAppWidgetProvider");
         poke.addCategory(Intent.CATEGORY_ALTERNATIVE);
         poke.setData(Uri.parse("3")); 
         sendBroadcast(poke);
     }

拉长距离

public class LocationUtil implements LocationListener 
{
private Context context;
private LocationManager locationManager;
Location ToPassLocation = null;
// chetan changes
private String provider;

// changes

public LocationUtil(Context context) 
{
    this.context = context;
    Log.d("Location", "Object created");

    locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
    locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0,0, this);
    locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0,0, this);
}

public Location getLatLongLast() 
{
    // chetan changes
    if (ToPassLocation == null) 
    {
        locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
        Criteria criteria = new Criteria();
        provider = locationManager.getBestProvider(criteria, false);

        if (provider.isEmpty()) 
        {   
            Log.e("Location_Util", "OLD Provider:- NETWORK_Provider");
            provider = LocationManager.NETWORK_PROVIDER;
            onProviderEnabled(provider);
            Location location = locationManager.getLastKnownLocation(provider);
            onProviderEnabled(provider);
            return location;
        }
        else if (provider.isEmpty()) 
        {
            Log.e("Location_Util", "OLD Provider:- GPS_Provider");
            provider = LocationManager.GPS_PROVIDER;
            onProviderEnabled(provider);
            Location location = locationManager.getLastKnownLocation(provider);
            onProviderEnabled(provider);
            return location;
        }
        else 
        {
            Log.e("Location_Util", "OLD Provider:- PASSIVE_Provider");
            provider = LocationManager.PASSIVE_PROVIDER;
            onProviderEnabled(provider);
            Location location = locationManager.getLastKnownLocation(provider);
            onProviderEnabled(provider);
            return location;
        }
    } 
    else 
    {
        Log.e("Location_Util", "NEW Provider:- Will get while calling get provider");
        return ToPassLocation;
    }
} 

  //    public Location getLatLongLastNew()
 // { 
//      return ToPassLocation;
//  } 
//  

@Override
public void onLocationChanged(Location location) 
{
    ToPassLocation = location;
    System.err.println("Location New:-"+ ToPassLocation);
    System.err.println("Latitude__:-"+location.getLatitude()+"-:");
    System.err.println("Longitude_:-"+location.getLongitude()+"-:");
    Log.e("Location_Util",  "Provider__:-"+location.getProvider());
    location.getLatitude();
    location.getLongitude();
}

@Override
public void onProviderDisabled(String provider) 
{
    // TODO Auto-generated method stub
}

@Override
public void onProviderEnabled(String provider) 
{}

@Override
public void onStatusChanged(String provider, int status, Bundle extras) 
{
    // TODO Auto-generated method stub
}

  public void stopUsingGPS(){
        if(locationManager != null){
            locationManager.removeUpdates(this);
        }       
    }
}

Answer 2

首先，这取决于您是通过 Google Play 服务获取地理位置还是以“旧”方式进行。我不建议在用户背后做点什么。一种常见的方法是检查 GPS 是否打开，最好使用PreferenceScreen 将用户引导至系统设置。还可以通过DialogPreference 或敬酒通知用户。否则，如果你想用肮脏的方式来做，你可以在Stackoverflow找到答案

Answer 3

public void turnGPSOn() {
    Intent intent = new Intent("android.location.GPS_ENABLED_CHANGE");
    intent.putExtra("enabled", true);
    this.sendBroadcast(intent);

    String provider = Settings.Secure.getString(this.getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED);

    if (!provider.contains("gps")) { //if gps is disabled
        final Intent poke = new Intent();
        poke.setClassName("com.android.settings", "com.android.settings.widget.SettingsAppWidgetProvider");
        poke.setData(Uri.parse("3"));
        this.sendBroadcast(poke);
    }
}

// automatic turn off the gps
public void turnGPSOff() {
    Intent intent = new Intent("android.location.GPS_ENABLED_CHANGE");
    intent.putExtra("enabled", false);
    this.sendBroadcast(intent);

    String provider = Settings.Secure.getString(this.getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED);

    if (provider.contains("gps")) { //if gps is enabled
        final Intent poke = new Intent();
        poke.setClassName("com.android.settings", "com.android.settings.widget.SettingsAppWidgetProvider");
        poke.addCategory(Intent.CATEGORY_ALTERNATIVE);
        poke.setData(Uri.parse("3"));
        this.sendBroadcast(poke);
    }
}