Question

我正在开发一个获取纬度和经度的Android应用程序，并将其发送给有短信的人。我遇到的问题是对方没有收到我的短信。你能看看发生了什么事吗？我从今天早上起就开始工作了，它让我吃香蕉。

    public class MainActivity extends AppCompatActivity implements View.OnClickListener {

        Button sendSMS;
        TextView txtLocation;

        Context context;

        double lat, lng;
        LocationManager locationManager;
        Location location;

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

            sendSMS = (Button) findViewById(R.id.button_send_sms);
            txtLocation = (TextView) findViewById(R.id.txt_location);
            sendSMS.setOnClickListener(this);

            context = getApplicationContext();

            locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
            Criteria criteria = new Criteria();
            criteria.setAccuracy(Criteria.ACCURACY_FINE);
            criteria.setPowerRequirement(Criteria.POWER_LOW);
            criteria.setAltitudeRequired(false);
            criteria.setBearingRequired(false);
            criteria.setSpeedRequired(false);
            criteria.setCostAllowed(true);
            String provider = locationManager.getBestProvider(criteria, true);
            PackageManager packageManager = getPackageManager();
            if (packageManager.checkPermission(android.Manifest.permission.ACCESS_FINE_LOCATION, getPackageName()) == PackageManager.PERMISSION_GRANTED){
                locationManager.requestLocationUpdates(provider, 10000, 100, locationListener);
                location = locationManager.getLastKnownLocation(provider);
                getCoordinates(location);
            }
        }

        private void getCoordinates(Location l){
            if (l != null) {
                lat = l.getLatitude();
                lng = l.getLongitude();
                txtLocation.setText(Latitude: + " " + lat + "\n" + Longitude + " " + lng);
            }
            else{
                txtLocation.setText("No location found yet");
            }
        }

@Override
        public void onClick(View v) {
            Intent intent;
            switch (v.getId()){
                case R.id.button_send_sms:
                    String number;
                    String msgbody;
                    number = "0123456789";
                    if(lat!=0 && lng!=0) {
                        msgbody = "My location is: http://google.com/maps/place/" + lat + "," + lng;
                        SmsManager smsManager = SmsManager.getDefault();
                        smsManager.sendTextMessage(number, null, msgbody, null, null);
                        Toast.makeText("Message sent"), Toast.LENGTH_SHORT).show();
                    }
                    else{
                        Toast.makeText("Message didn't send"), Toast.LENGTH_SHORT).show();
                    }
                    break;
            }
        }

        private final LocationListener locationListener = new LocationListener() {
            @Override
            public void onLocationChanged(Location location) {
                getCoordinates(location);
            }

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

            @Override
            public void onProviderEnabled(String provider) {
            }

            @Override
            public void onProviderDisabled(String provider) {
            }
        };
    }

我在手机屏幕上看到的结果是Toast“Message sent”但我看不到另一部手机收到的短信，我的logcat没有错误。当我按下按钮时，logcat写道：

12-07 00:15:54.494 28690-28690/emmanouilvaresis.findtheold D/ViewRootImpl: ViewPostImeInputStage ACTION_DOWN

AndroidManifest还拥有短信的所有权限。

<uses-permission android:name="android.permission.WRITE_SMS" />
<uses-permission android:name="android.permission.SEND_SMS" />

你能告诉我为什么不发送短信吗？我做错了什么？

android中的SmsManager无法正常工作

0 个答案: