我有一个 android 代码，它将使用 NETWORK PROVIDER 查找纬度和经度值，并使用静态 IP 将其（纬度和经度值）存储在 SERVER 以及 MYSQL 数据库中。这工作正常..
我现在需要编写一个客户端应用程序，它从 MYSQL 数据库中检索纬度和经度值，并将其显示在 android 的谷歌地图中。怎么做。在过去的 4 天里，我对此感到震惊。请帮我找到解决方案
以下是我的代码
public class MainActivity extends Activity {
Location location;
protected LocationManager locationManager;
private LocationListener ll ;
private TextView tv ;
EditText msgTextField;
int delay = 1000;
int period=10000;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
boolean gpsEnabled = true;
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// AlarmManager manager=(AlarmManager)getSystemService(Context.ALARM_SERVICE);
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
tv= new TextView (this);
try {
gpsEnabled =locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
// Toast.makeText(MainActivity.this,"ggg ",Toast.LENGTH_LONG).show();
}
catch (Exception e)
{
}
locationManager. requestLocationUpdates( LocationManager.NETWORK_PROVIDER, 20000, 5, new MyLocationListener());
Log.d("gps","Gps supports altitude"+ locationManager.getProvider(LocationManager.NETWORK_PROVIDER).supportsAltitude());
List<String> providers=locationManager.getAllProviders();
for(String provider : providers)
{
Toast.makeText(MainActivity.this,provider,Toast.LENGTH_LONG).show();
}
for(int w=0;w <providers.size();w++)
{
Log.d("Location Test ","provider "+w +":"+providers.get(w));
}
providers =locationManager.getProviders(true);
final Button send = (Button) this.findViewById(R.id.sendButton);
send.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
showCurrentLocation();
}
});
Button send1 = (Button) this.findViewById(R.id.sendButton1);
send1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent viewIntent =new Intent(MainActivity.this,Mapview.class);
startActivity(viewIntent);
}
});
Button start=(Button) this.findViewById(R.id.startSercice1);
start.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
startService(new Intent(MainActivity.this,SimpleService.class));
}
});
Button stop=(Button) this.findViewById(R.id.stopService1);
stop.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
stopService(new Intent(MainActivity.this,SimpleService.class));
}
});
}
protected void showCurrentLocation()
{
Location location = locationManager.getLastKnownLocation( LocationManager.NETWORK_PROVIDER);
if (location != null)
{
// double dd = location.getAltitude();
String message = String.format( "Current Location \n Longitude: %1$s \n Latitude: %2$s ",location.getLongitude(), location.getLatitude() );
Toast.makeText(MainActivity.this, message,Toast.LENGTH_LONG).show();
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://xx.xx.xx.xx/YourPhpScript1.php");
try {
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
nameValuePairs.add(new BasicNameValuePair("id", "12345"));
nameValuePairs.add(new BasicNameValuePair("message", message));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
httpclient.execute(httppost);
}
catch (ClientProtocolException e)
{
}
catch (IOException e)
{
}
}
}
private class MyLocationListener implements LocationListener
{
public void onLocationChanged(final Location location)
{
final String message = String.format( "New Location \n Longitude: %1$s \n Latitude: %2$s ",location.getLongitude(), location.getLatitude());
Toast.makeText(MainActivity.this, message, Toast.LENGTH_LONG).show();
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://xx.xx.xx.xx/YourPhpScript1.php");
double LONGITUDE = location.getLongitude();
double LATITUDE = location.getLatitude();
TextView myAddress = (TextView)findViewById(R.id.myaddress);
try
{
Geocoder geocoder = new Geocoder(MainActivity.this, Locale.ENGLISH);
List<Address> addresses = geocoder.getFromLocation(LATITUDE, LONGITUDE, 1);
if(addresses != null) {
Address returnedAddress = addresses.get(0);
StringBuilder strReturnedAddress = new StringBuilder("Address:\n");
for(int i=0; i<returnedAddress.getMaxAddressLineIndex(); i++) {
strReturnedAddress.append(returnedAddress.getAddressLine(i)).append("\n");
String add = strReturnedAddress.toString();
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(1);
nameValuePairs.add(new BasicNameValuePair("id", "12345"));
nameValuePairs.add(new BasicNameValuePair("message", add));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
httpclient.execute(httppost);
}
myAddress.setText(strReturnedAddress.toString());
}
else
{
myAddress.setText("No Address returned!");
}
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
myAddress.setText("Canont get Address!");
}
// double ddd =location.getAltitude();
// pendingIntent =PendingIntent.getService(MainActivity.this,1,intent,1);
final String message1 = String.format( "New Location \n Longitude: %1$s \n Latitude: %2$s ",location.getLongitude(), location.getLatitude());
Toast.makeText(MainActivity.this, message1, Toast.LENGTH_LONG).show();
new Timer().schedule(new TimerTask()
{
public void run()
{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://xx.xx.xx.xx/YourPhpScript1.php");
try {
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
nameValuePairs.add(new BasicNameValuePair("id", "12345"));
nameValuePairs.add(new BasicNameValuePair("message", message));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
//manager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis()+200000, pendingIntent);
httpclient.execute(httppost);
}
catch (ClientProtocolException e)
{
}
catch (IOException e)
{
}
}
},60000);
}
public void onStatusChanged(String s, int i, Bundle b)
{
Toast.makeText( MainActivity.this, "Provider status changed",Toast.LENGTH_LONG).show();
}
public void onProviderDisabled(String s)
{
Toast.makeText( MainActivity.this,"Provider disabled by the user. GPS turned off",Toast.LENGTH_LONG).show();
}
public void onProviderEnabled(String s)
{
Toast.makeText( MainActivity.this,"Provider enabled by the user",Toast.LENGTH_LONG).show();
}
}
}