嘿伙计我正在创建一个应用程序，它获取用户的当前坐标，然后在地图上显示它们在活动上实现。
但我的问题是地图不可移动。我试过getUiSettings（）。setScrollGesturesEnabled（true）;但它不起作用。
守则如下：
public class Page1 extends AppCompatActivity implements OnMapReadyCallback {
private GoogleMap mMap;
String em,n;
private DrawerLayout mDrawer;
private Toolbar toolbar;
private NavigationView nvDrawer;
TextView tv1;
private static final int MY_PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION = 2;
protected LocationManager locationManager;
Location location;
private ActionBarDrawerToggle drawerToggle;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_page1);
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
nvDrawer = (NavigationView) findViewById(R.id.nvView);
setupDrawerContent(nvDrawer);
// Find our drawer view
mDrawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawerToggle = setupDrawerToggle();
// Tie DrawerLayout events to the ActionBarToggle
mDrawer.addDrawerListener(drawerToggle);
locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
}
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.my_menu_option, menu);
tv1= (TextView) nvDrawer.findViewById(R.id.textView5);
Intent i=getIntent();
em=i.getStringExtra("k");
tv1.setText(em);
return true;
}
@Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
Location nwLocation =getLocation(LocationManager.NETWORK_PROVIDER);
if (nwLocation != null) {
double latitude = nwLocation.getLatitude();
double longitude = nwLocation.getLongitude();
LatLng location = new LatLng(latitude,longitude);
mMap.addMarker(new MarkerOptions().position(location).title("I am here"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(location));
float zoomLevel = 16; //This goes up to 21
mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(location, zoomLevel));
googleMap.getUiSettings().setScrollGesturesEnabled(true);
}
else {
showSettingsAlert("Network");
}
}
public Location getLocation(String provider) {
if (locationManager.isProviderEnabled(provider)) {
if(ContextCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION)!= PackageManager.PERMISSION_GRANTED){
ActivityCompat.requestPermissions(this,new String[]{android.Manifest.permission.ACCESS_FINE_LOCATION},MY_PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION);
}
else {
if (locationManager != null) {
location = locationManager.getLastKnownLocation(provider);
return location;
}
}
}
return null;
}
@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
switch (requestCode) {
case MY_PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION: {
// If request is cancelled, the result arrays are empty.
if (grantResults.length > 0 ) {
if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
Toast.makeText(this, "Permission Granted", Toast.LENGTH_SHORT).show();
}
else if(grantResults[0]==PackageManager.PERMISSION_DENIED) {
Toast.makeText(this, "Permission Denied", Toast.LENGTH_SHORT).show();
}
else {
Toast.makeText(this, "Never Ask Again", Toast.LENGTH_SHORT).show();
}
}
return;
}
}
}
public void showSettingsAlert(String provider) {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(
Page1.this);
alertDialog.setTitle(provider + " Settings");
alertDialog.setMessage(provider + " is not enabled! Want to go to settings menu?");
alertDialog.setPositiveButton("Settings",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
Page1.this.startActivity(intent);
}
});
alertDialog.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
alertDialog.show();
}
private ActionBarDrawerToggle setupDrawerToggle() {
return new ActionBarDrawerToggle(this, mDrawer, toolbar, R.string.drawer_open, R.string.drawer_close);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (drawerToggle.onOptionsItemSelected(item)) {
return true;
}
switch (item.getItemId()) {
case R.id.m1:
onMapReady(mMap);
return true;
case R.id.m2:
Intent i=new Intent(this,AboutUs.class);
startActivity(i);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
private void setupDrawerContent(final NavigationView navigationView) {
navigationView.setNavigationItemSelectedListener(
new NavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
selectDrawerItem(menuItem);
View headerLayout = navigationView.getHeaderView(0);
return true;
}
});
}
public void selectDrawerItem(MenuItem menuItem) {
// Create a new fragment and specify the fragment to show based on nav item clicked
switch(menuItem.getItemId()) {
case R.id.nav_first_fragment:
mFirst(menuItem);
mDrawer.closeDrawers();
break;
case R.id.nav_second_fragment:
/*Intent i = new Intent(Page1.this, ShowInfo.class);
i.putExtra("j", em);
startActivity(i);*/
Toast.makeText(this, "Location Updated", Toast.LENGTH_SHORT).show();
int a=0;
Intent i=getIntent();
a=i.getIntExtra("u",0);
Location nwLocation =getLocation(LocationManager.NETWORK_PROVIDER);
if (nwLocation != null) {
double latitude = nwLocation.getLatitude();
double longitude = nwLocation.getLongitude();
updateLocation(a,latitude,longitude);
}
else {
showSettingsAlert("Network");
}
break;
case R.id.sub1:
startActivity(new Intent(this, ShowInfo.class));
break;
case R.id.sub2:
startActivity(new Intent(this, LoginPage.class));
finish();
break;
default:
mFirst(menuItem);
mDrawer.closeDrawers();
}
menuItem.setChecked(true);
setTitle(menuItem.getTitle());
mDrawer.closeDrawers();
}
public void updateLocation(int userid,double xCoordinate,double yCoordinate){
JSONObject jsonObject = new JSONObject();
try {
jsonObject.put("userId", userid);
jsonObject.put("deviceName", "Mi4i");
jsonObject.put("xCoordinate",xCoordinate);
jsonObject.put("yCoordinate",yCoordinate);
jsonObject.toString();
} catch (JSONException e) {
e.printStackTrace();
}
final MediaType JSON = MediaType.parse("application/json; charset=utf-8");
final OkHttpClient client = new OkHttpClient();
RequestBody body = RequestBody.create(JSON, String.valueOf(jsonObject));
final Request request = new Request.Builder()
.url("http://172.31.4.91:8090/rest/saveLocation")
.post(body)
.build();
client.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Request request, IOException e) {
e.printStackTrace();
}
@Override
public void onResponse(Response response) throws IOException {
if (!response.isSuccessful()) {
throw new IOException("Unexpected code " + response);
} /*else {
}*/
}
});
}
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
drawerToggle.syncState();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
drawerToggle.onConfigurationChanged(newConfig);
}
}
此活动的用户界面是： -
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:map="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.pb.larcenytest.Page1" >
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!-- The main content view where fragments are loaded -->
<FrameLayout
android:id="@+id/flContent"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include
layout="@layout/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
<android.support.design.widget.NavigationView
android:id="@+id/nvView"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:headerLayout="@layout/nav_header"
android:background="@android:color/white"
app:menu="@menu/drawer_view" />
</android.support.v4.widget.DrawerLayout>
</fragment>
答案 0 :(得分：0)
您从网络提供商处获取位置，这需要时间
如何添加location.LocationListener
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