使用SMS管理器发送带有GPS位置的SMS

我需要获取GPS位置并通过Sms与相关消息一起发送的帮助.我已经开发了一个紧急按钮应用程序，该应用程序应该发送自定义消息+ GPS位置.我正在努力实现GPS定位功能.

I need help getting GPS location and sending it via Sms along with the relevant message. I have developed an emergency button app which should send a custom message + GPS location. I am struggling with implementing the GPS location function.

不带GPS的原始代码:/此代码功能不错，但是其中不包含GPS位置/

Original code without GPS: /This code funtcions well however it does not contain the GPS location/

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.telephony.SmsManager;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends AppCompatActivity {

    private EditText customMessage;



@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        customMessage=(EditText)findViewById(R.id.customMessage);

    }

    public void sendText(View view)
    {


        String message = "";
        if (view.getId() == R.id.fab)
        {
            message = customMessage.getText().toString();
        }
        else
        {
            Button sender = (Button)view;
            message = sender.getText().toString();
        }
        //Toast.makeText(this, "Test", Toast.LENGTH_SHORT).show();

        SmsManager smsManager = SmsManager.getDefault();
        smsManager.sendTextMessage("6505551212", null,message + "(Location Here)", null, null);
    }


}

带有GPS的代码:/代码的问题是，当我单击发送按钮时，应用程序只是崩溃了，但没有错误/

Code with GPS: /The problem with the code is that the app just crashes when I click the send button but it has no errors/

import android.location.Location;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.telephony.SmsManager;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends AppCompatActivity {

    private EditText customMessage;



@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        customMessage=(EditText)findViewById(R.id.customMessage);

    }

    public void sendText (View view, String phoneNumber, Location currentLocation) {

        String message = "";
        if (view.getId() == R.id.fab)
        {
            message = customMessage.getText().toString();
        }
        else
        {
            Button sender = (Button)view;
            message = sender.getText().toString();
        }


        SmsManager smsManager = SmsManager.getDefault();
        StringBuffer smsBody = new StringBuffer();
        smsBody.append("http://maps.google.com?q=");
        smsBody.append(currentLocation.getLatitude());
        smsBody.append(",");
        smsBody.append(currentLocation.getLongitude());
        smsManager.sendTextMessage("6505551212", null, smsBody.toString(), null, null);
    }
}