Question

点击按钮（mapbttn）后，我的谷歌地图应用每5秒发送一次我的坐标。我想制作另一个按钮来停止发送这些坐标。我怎么能这样做？

这是我的.java文件：

    private GoogleMap mMap;
    Button mapbttn;
    private LocationManager locationManager;
    private LocationListener locationListener;

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

        SupportMapFragment mapFragment =
                (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
        mapFragment.getMapAsync(this);

        mapbttn = (Button) findViewById(R.id.setRangeButton);

        mapbttn.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                btncoord();
            }
        });

        locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);

        locationListener = new LocationListener() {
            @Override
            public void onLocationChanged(Location location) {
                Toast.makeText(getApplicationContext(), "" + location.getLatitude() + '\n' + location.getLongitude(), Toast.LENGTH_LONG).show();
            }
            @Override
            public void onStatusChanged(String s, int i, Bundle bundle) {

            }
            @Override
            public void onProviderEnabled(String s) {

            }

            public void onProviderDisabled(String s) {
                Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
                startActivity(intent);
            }
        };

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {

            if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
                requestPermissions(new String[]{
                        Manifest.permission.ACCESS_FINE_LOCATION,
                        Manifest.permission.ACCESS_COARSE_LOCATION,
                        Manifest.permission.INTERNET
                }, 10);
                return;
            } else {
                btncoord();
            }
        }
        Bundle save = getIntent().getExtras();

        if (save != null) color = save.getString("marker color");
    }

    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        switch (requestCode) {
            case 10:
                if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED)
                    btncoord();
                return;
        }
    }

    public void btncoord() {
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            return;
        }
        locationManager.requestLocationUpdates(locationManager.GPS_PROVIDER, 5000, 0, locationListener);
    }

Answer 1

只需取消注册您的位置管理员

即可

locationManager.removeUpdates(ActivityName.this);

docs

Answer 2

试试这个

public void stopUpdates(){
    locationManager.removeUpdates(context);
}

在停止按钮上调用stopUpdate()方法。

停止发送Android坐标GPS

2 个答案: