我正在研究与Google地图相关的Android应用程序。当我尝试给予时 通过模拟器控制它的值不会在地图中给出我想要的输出。 谁能帮我吗？ 这是我的MapsActivity.java：
package com.example.user.suraksha;
import android.content.ContentValues;
import android.content.IntentSender;
import android.database.sqlite.SQLiteConstraintException;
import android.database.sqlite.SQLiteDatabase;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.util.Log;
import android.view.View;
import android.widget.Toast;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.location.LocationListener;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
import java.io.IOException;
import java.util.List;
import java.util.Locale;
public class MapsActivity extends FragmentActivity implements
GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener,
LocationListener {
public static final String TAG = MapsActivity.class.getSimpleName();
/*
* Define a request code to send to Google Play services
* This code is returned in Activity.onActivityResult
*/
private final static int CONNECTION_FAILURE_RESOLUTION_REQUEST = 9000;
private GoogleMap mMap; // Might be null if Google Play services APK is not available.
private GoogleApiClient mGoogleApiClient;
private LocationRequest mLocationRequest;
MySqlHelper mDbHelper = new MySqlHelper(this);
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
setUpMapIfNeeded();
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
// Create the LocationRequest object
mLocationRequest = LocationRequest.create()
.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY)
.setInterval(10 * 1000) // 10 seconds, in milliseconds
.setFastestInterval(1 * 1000); // 1 second, in milliseconds
}
@Override
protected void onResume() {
super.onResume();
setUpMapIfNeeded();
mGoogleApiClient.connect();
}
@Override
protected void onPause() {
super.onPause();
if (mGoogleApiClient.isConnected()) {
LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);
mGoogleApiClient.disconnect();
}
}
/**
* Sets up the map if it is possible to do so (i.e., the Google Play services APK is correctly
* installed) and the map has not already been instantiated.. This will ensure that we only ever
* call {@link #setUpMap()} once when {@link #mMap} is not null.
* <p/>
* If it isn't installed {@link SupportMapFragment} (and
* {@link com.google.android.gms.maps.MapView MapView}) will show a prompt for the user to
* install/update the Google Play services APK on their device.
* <p/>
* A user can return to this FragmentActivity after following the prompt and correctly
* installing/updating/enabling the Google Play services. Since the FragmentActivity may not
* have been completely destroyed during this process (it is likely that it would only be
* stopped or paused), {@link #onCreate(Bundle)} may not be called again so we should call this
* method in {@link #onResume()} to guarantee that it will be called.
*/
private void setUpMapIfNeeded() {
// Do a null check to confirm that we have not already instantiated the map.
if (mMap == null) {
// Try to obtain the map from the SupportMapFragment.
mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map))
.getMap();
// Check if we were successful in obtaining the map.
if (mMap != null) {
setUpMap();
}
}
}
/**
* This is where we can add markers or lines, add listeners or move the camera. In this case, we
* just add a marker near Africa.
* <p/>
* This should only be called once and when we are sure that {@link #mMap} is not null.
*/
private void setUpMap() {
mMap.addMarker(new MarkerOptions().position(new LatLng(0, 0)).title("Marker"));
}
private void handleNewLocation(Location location) {
Log.d(TAG, location.toString());
double currentLatitude = location.getLatitude();
double currentLongitude = location.getLongitude();
LatLng latLng = new LatLng(currentLatitude, currentLongitude);
//mMap.addMarker(new MarkerOptions().position(new LatLng(currentLatitude, currentLongitude)).title("Current Location"));
Geocoder geocoder = new Geocoder(getApplicationContext(), Locale.getDefault());
String add = "";
try{
List<Address> addresses = geocoder.getFromLocation(currentLatitude, currentLongitude, 1);
if (addresses != null && addresses.size() > 0) {
StringBuilder result = new StringBuilder();
for(int i = 0; i < addresses.size(); i++){
Address address = addresses.get(i);
int maxIndex = address.getMaxAddressLineIndex();
for (int x = 0; x <= maxIndex; x++ ){
result.append(address.getAddressLine(x));
result.append(",");
}
result.append(address.getLocality());
result.append(",");
result.append(address.getPostalCode());
result.append("\n\n");
}
add = result.toString();
}
}catch (Exception e){
e.printStackTrace();
Toast.makeText(this, e.getMessage(), Toast.LENGTH_LONG).show();
}
SQLiteDatabase db = mDbHelper.getWritableDatabase();
ContentValues values = new ContentValues();
try {
values.put("loc_longitude", currentLongitude);
values.put("loc_latitude", currentLatitude);
values.put("loc_title", add);
long newrowid = db.insert("Location", null, values);
}catch(SQLiteConstraintException e){
e.printStackTrace();
}
MarkerOptions options = new MarkerOptions()
.position(latLng)
.title(add);
mMap.addMarker(options);
mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
}
@Override
public void onConnected(Bundle bundle) {
Location location = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
if (location == null) {
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
}
else {
handleNewLocation(location);
}
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
/*
* Google Play services can resolve some errors it detects.
* If the error has a resolution, try sending an Intent to
* start a Google Play services activity that can resolve
* error.
*/
if (connectionResult.hasResolution()) {
try {
// Start an Activity that tries to resolve the error
connectionResult.startResolutionForResult(this, CONNECTION_FAILURE_RESOLUTION_REQUEST);
/*
* Thrown if Google Play services canceled the original
* PendingIntent
*/
} catch (IntentSender.SendIntentException e) {
// Log the error
e.printStackTrace();
}
} else {
/*
* If no resolution is available, display a dialog to the
* user with the error.
*/
Log.i(TAG, "Location services connection failed with code " + connectionResult.getErrorCode());
}
}
@Override
public void onLocationChanged(Location location) {
handleNewLocation(location);
}
}
这是我的MySqlHelper.java： 包com.example.user.suraksha;
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
/**
* Created by user on 3/29/2015.
*/
public class MySqlHelper extends SQLiteOpenHelper{
public static final String TABLE_NAME = "Location";
public static final String ID_SQL = "loc_id";
public static final String TITLE = "loc_title";
public static final String LONGITUDE = "loc_longitude";
public static final String LATITUDE = "loc_latitude";
public static final String POSITION = "loc_position";
public static final int D_VERSION = 1;
public static final String DB_NAME = "markerlocations.db";
public static final String DB_CREATE =
"create table Location ( loc_id integer autoincrement,loc_longitude float , loc_latitude float, loc_title text , loc_position text,primary key(loc_id));";
public MySqlHelper(Context context) {
super(context, DB_NAME, null, D_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL(DB_CREATE);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP TABLE IF EXISTS" + TABLE_NAME);
onCreate(db);
}
}
这是我的logcat错误：
03-30 19:23:55.980: E/ConnectivityService(387): Exception trying to add a route: java.lang.IllegalStateException: command '16 interface fwmark exempt add 10.0.2.2/32' failed with '400 16 Failed to add exemption rule (File exists)'
03-30 19:23:56.120: E/logwrapper(772): executing /system/bin/ip failed: No such file or directory
03-30 19:25:10.630: E/JavaBinder(670): java.lang.RuntimeException: android.os.DeadObjectException
03-30 19:25:10.630: E/JavaBinder(670): at android.os.Parcel.writeException(Parcel.java:1366)
03-30 19:25:10.630: E/JavaBinder(670): at android.os.Binder.execTransact(Binder.java:410)
03-30 19:25:10.630: E/JavaBinder(670): at dalvik.system.NativeStart.run(Native Method)
03-30 19:25:10.630: E/JavaBinder(670): Caused by: android.os.DeadObjectException
03-30 19:25:10.630: E/JavaBinder(670): at android.os.BinderProxy.transact(Native Method)
03-30 19:25:10.630: E/JavaBinder(670): at android.content.IIntentReceiver$Stub$Proxy.performReceive(IIntentReceiver.java:124)
03-30 19:25:10.630: E/JavaBinder(670): at android.app.ActivityThread$ApplicationThread.scheduleRegisteredReceiver(ActivityThread.java:816)
03-30 19:25:10.630: E/JavaBinder(670): at android.app.ApplicationThreadNative.onTransact(ApplicationThreadNative.java:394)
03-30 19:25:10.630: E/JavaBinder(670): at android.os.Binder.execTransact(Binder.java:404)
03-30 19:26:35.210: E/SQLiteDatabase(1015): Error inserting loc_latitude=37.422005 loc_longitude=-100.084095 loc_title=
03-30 19:26:35.210: E/SQLiteDatabase(1015): android.database.sqlite.SQLiteConstraintException: columns loc_longitude, loc_latitude are not unique (code 19)
03-30 19:26:35.210: E/SQLiteDatabase(1015): at android.database.sqlite.SQLiteConnection.nativeExecuteForLastInsertedRowId(Native Method)
03-30 19:26:35.210: E/SQLiteDatabase(1015): at android.database.sqlite.SQLiteConnection.executeForLastInsertedRowId(SQLiteConnection.java:782)
03-30 19:26:35.210: E/SQLiteDatabase(1015): at android.database.sqlite.SQLiteSession.executeForLastInsertedRowId(SQLiteSession.java:788)
03-30 19:26:35.210: E/SQLiteDatabase(1015): at android.database.sqlite.SQLiteStatement.executeInsert(SQLiteStatement.java:86)
03-30 19:26:35.210: E/SQLiteDatabase(1015): at android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1469)
03-30 19:26:35.210: E/SQLiteDatabase(1015): at android.database.sqlite.SQLiteDatabase.insert(SQLiteDatabase.java:1339)
03-30 19:26:35.210: E/SQLiteDatabase(1015): at com.example.user.suraksha.MapsActivity.handleNewLocation(MapsActivity.java:144)
03-30 19:26:35.210: E/SQLiteDatabase(1015): at com.example.user.suraksha.MapsActivity.onLocationChanged(MapsActivity.java:194)
03-30 19:26:35.210: E/SQLiteDatabase(1015): at com.google.android.gms.internal.zzpe$zza.handleMessage(Unknown Source)
03-30 19:26:35.210: E/SQLiteDatabase(1015): at android.os.Handler.dispatchMessage(Handler.java:102)
03-30 19:26:35.210: E/SQLiteDatabase(1015): at android.os.Looper.loop(Looper.java:136)
03-30 19:26:35.210: E/SQLiteDatabase(1015): at android.app.ActivityThread.main(ActivityThread.java:5017)
03-30 19:26:35.210: E/SQLiteDatabase(1015): at java.lang.reflect.Method.invokeNative(Native Method)
03-30 19:26:35.210: E/SQLiteDatabase(1015): at java.lang.reflect.Method.invoke(Method.java:515)
03-30 19:26:35.210: E/SQLiteDatabase(1015): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
03-30 19:26:35.210: E/SQLiteDatabase(1015): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
03-30 19:26:35.210: E/SQLiteDatabase(1015): at dalvik.system.NativeStart.main(Native Method)
03-30 19:26:38.930: E/StrictMode(620): A resource was acquired at attached stack trace but never released. See java.io.Closeable for information on avoiding resource leaks.
03-30 19:26:38.930: E/StrictMode(620): java.lang.Throwable: Explicit termination method 'close' not called
03-30 19:26:38.930: E/StrictMode(620): at dalvik.system.CloseGuard.open(CloseGuard.java:184)
03-30 19:26:38.930: E/StrictMode(620): at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:278)
03-30 19:26:38.930: E/StrictMode(620): at android.net.SSLCertificateSocketFactory.verifyHostname(SSLCertificateSocketFactory.java:190)
03-30 19:26:38.930: E/StrictMode(620): at android.net.SSLCertificateSocketFactory.createSocket(SSLCertificateSocketFactory.java:435)
03-30 19:26:38.930: E/StrictMode(620): at com.android.okhttp.Connection.upgradeToTls(Connection.java:131)
03-30 19:26:38.930: E/StrictMode(620): at com.android.okhttp.Connection.connect(Connection.java:107)
03-30 19:26:38.930: E/StrictMode(620): at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:294)
03-30 19:26:38.930: E/StrictMode(620): at com.android.okhttp.internal.http.HttpEngine.sendSocketRequest(HttpEngine.java:255)
03-30 19:26:38.930: E/StrictMode(620): at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:206)
03-30 19:26:38.930: E/StrictMode(620): at com.android.okhttp.internal.http.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:345)
03-30 19:26:38.930: E/StrictMode(620): at com.android.okhttp.internal.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:89)
03-30 19:26:38.930: E/StrictMode(620): at com.android.okhttp.internal.http.HttpURLConnectionImpl.getOutputStream(HttpURLConnectionImpl.java:197)
03-30 19:26:38.930: E/StrictMode(620): at com.android.okhttp.internal.http.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:254)
03-30 19:26:38.930: E/StrictMode(620): at com.google.android.gms.http.GoogleHttpClient.a(SourceFile:913)
03-30 19:26:38.930: E/StrictMode(620): at com.google.android.gms.http.GoogleHttpClient.b(SourceFile:759)
03-30 19:26:38.930: E/StrictMode(620): at com.google.android.gms.http.GoogleHttpClient.execute(SourceFile:663)
03-30 19:26:38.930: E/StrictMode(620): at com.google.android.gms.http.GoogleHttpClient.execute(SourceFile:654)
03-30 19:26:38.930: E/StrictMode(620): at com.google.android.gms.playlog.uploader.e.a(SourceFile:346)
03-30 19:26:38.930: E/StrictMode(620): at com.google.android.gms.playlog.uploader.e.a(SourceFile:232)
03-30 19:26:38.930: E/StrictMode(620): at com.google.android.gms.playlog.uploader.e.a(SourceFile:204)
03-30 19:26:38.930: E/StrictMode(620): at com.google.android.gms.playlog.uploader.UploaderService.a(SourceFile:52)
03-30 19:26:38.930: E/StrictMode(620): at com.google.android.gms.gcm.ap.run(SourceFile:131)
答案 0 :(得分：0)
MapActivityForAddress.java
public class MapActivityForAddress extends Activity implements LocationListener, OnMyLocationButtonClickListener {
private GoogleMap googleMap;
LocationManager locationManager;
Location location;
Geocoder geocoder;
List<Address> addresses;
CameraUpdate cameraUpdate;
double latitude, longitude;
String zip, city, state, country, mediaPath, mediaDate, mediaTime, mediaLongitude, mediaLatitude;
int position = 0;
String title = "";
DatabaseHelper dbHelper;
Button next;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.map_activity_for_address);
if (!isGooglePlayServicesAvailable()) {
finish();
}
MapFragment supportMapFragment = (MapFragment) getFragmentManager().findFragmentById(R.id.mapforAddress);
next = (Button) findViewById(R.id.btnMapNext);
dbHelper = new DatabaseHelper(getApplicationContext());
googleMap = supportMapFragment.getMap();
googleMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
googleMap.setMyLocationEnabled(true);
// googleMap.setOnMyLocationButtonClickListener(this);
googleMap.getUiSettings().setZoomControlsEnabled(true);
googleMap.setOnMapLongClickListener(new GoogleMap.OnMapLongClickListener() {
@Override
public void onMapLongClick(LatLng arg0) {
googleMap.clear();
latitude = arg0.latitude;
longitude = arg0.longitude;
zip = null;
city = null;
state = null;
country = null;
geocoder = new Geocoder(MapActivityForAddress.this, Locale.getDefault());
try {
addresses = geocoder.getFromLocation(latitude, longitude, 1);
if (addresses != null && addresses.size() > 0) {
title = "";
zip = addresses.get(0).getPostalCode();
city = addresses.get(0).getLocality();
state = addresses.get(0).getAdminArea();
country = addresses.get(0).getCountryName();
if (zip != null) {
title += zip + ", ";
}
if (city != null) {
title += city + ", ";
}
if (state != null) {
title += state + ", ";
}
if (country != null) {
title += country;
}
} else {
title = "Unknown Location";
}
} catch (IOException e) {
e.printStackTrace();
}
googleMap.addMarker(new MarkerOptions().position(arg0).title(title));
}
});
next.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (!title.trim().isEmpty() && title != null) {
finish();
} else {
Toast.makeText(getApplicationContext(), "Select Location First", Toast.LENGTH_LONG).show();
}
}
});
// place this function on your button click
dbHelper.insertMedia(mediaAddress, mediaLongitude, mediaLatitude);
}
@Override
protected void onResume() {
super.onResume();
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (location != null) {
LatLng latLang = new LatLng(location.getLatitude(), location.getLongitude());
cameraUpdate = CameraUpdateFactory.newLatLngZoom(latLang, 17);
googleMap.animateCamera(cameraUpdate);
}
}
@Override
public void onBackPressed() {
}
@Override
public void onLocationChanged(Location location) {
// TODO Auto-generated method stub
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
private boolean isGooglePlayServicesAvailable() {
int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
if (ConnectionResult.SUCCESS == status) {
return true;
} else {
GooglePlayServicesUtil.getErrorDialog(status, this, 0).show();
return false;
}
}
@Override
public boolean onMyLocationButtonClick() {
// TODO Auto-generated method stub
return false;
}
}
DatabaseHelper.java
public class DatabaseHelper extends SQLiteOpenHelper {
private static final String DATABASE_NAME = "MapDatabase.db";
private static final int DATABASE_VERSION = 1;
Cursor cur;
SQLiteDatabase db;
ContentValues values;
// Table Names
private static final String INCIDENT = "incident";
// Table Create Statements
// INCIDENT table create statement
private static final String CREATE_TABLE_INCIDENT = "CREATE TABLE "+ INCIDENT + " (sr_no INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, mediaAddress text,mediaLongitude text,mediaLatitude text)";
public DatabaseHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL(CREATE_TABLE_INCIDENT);
}
public void insertMedia(String mAddress, String mLongitude, String mLatitude) {
db = this.getWritableDatabase();
values = new ContentValues();
cur = db.query(INCIDENT, null, null, null, null, null, null);
cur.moveToFirst();
values.put("mediaAddress", mAddress);
values.put("mediaLongitude", mLongitude);
values.put("mediaLatitude", mLatitude);
db.insert(INCIDENT, null, values);
db.close();
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}
}