我正在主活动中使用谷歌地图片段构建导航抽屉应用程序，第一次打开应用程序时，提示用户在模拟器上激活位置，但我的位置在南太平洋，而setmylocationsenabled则在设置为true甚至不显示..
概要 - 位置按钮没有显示 -GPS位置完全错误
提前致谢
这是我的代码
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener,
OnMapReadyCallback, GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener,
LocationListener {
private GoogleMap mMap;
private Toolbar toolbar;
private DrawerLayout drawer;
private static final String PREFERENCES_FILE = "yourappname_settings";
private boolean NavDrawerUser;
private static final String PREF_USER_LEARNED_DRAWER = "navigation_drawer_learned";
private LocationRequest mLocationRequest;
private GoogleApiClient mGoogleApiClient;
private Location mLastLocation;
/**
* ATTENTION: This was auto-generated to implement the App Indexing API.
* See https://g.co/AppIndexing/AndroidStudio for more information.
*/
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
checkLocationPermission();
}
drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
NavDrawerUser = Boolean.valueOf(readSharedSetting(this, PREF_USER_LEARNED_DRAWER, "false"));
ActionBarDrawerToggle toggle = setupDrawerToggle();
drawer.setDrawerListener(toggle);
toggle.syncState();
if (!NavDrawerUser) {
drawer.openDrawer(GravityCompat.START);
NavDrawerUser = true;
saveSharedSetting(this, PREF_USER_LEARNED_DRAWER, "true");
}
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
@Override
public void onPause() {
super.onPause();
//stop location updates when Activity is no longer active
if (mGoogleApiClient != null) {
LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);
}
}
@Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
LatLng sthlm = new LatLng(59.334591, 18.063240);
mMap.getUiSettings().setZoomControlsEnabled(true);
mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
//mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(59.32548371429321, 18.08181381173199), 14.0f));
mMap.moveCamera(CameraUpdateFactory.newLatLng(sthlm));
if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
//Location Permission already granted
buildGoogleApiClient();
mMap.setMyLocationEnabled(true);
} else {
//Request Location Permission
checkLocationPermission();
}
}
else {
buildGoogleApiClient();
mMap.setMyLocationEnabled(true);
}
}
protected synchronized void buildGoogleApiClient() {
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
mGoogleApiClient.connect();
}
@Override
public void onLocationChanged(Location location) {
mLastLocation = location;
LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
//move map camera
mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
mMap.animateCamera(CameraUpdateFactory.zoomTo(11));
if (mGoogleApiClient != null) {
LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);
}
}
@Override
public void onConnected(@Nullable Bundle bundle) {
mLocationRequest = new LocationRequest();
mLocationRequest.setInterval(1000);
mLocationRequest.setFastestInterval(1000);
mLocationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
}
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
}
@Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
public static final int MY_PERMISSIONS_REQUEST_LOCATION = 99;
private void checkLocationPermission() {
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED) {
// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(this,
Manifest.permission.ACCESS_FINE_LOCATION)) {
// Show an explanation to the user *asynchronously* -- don't block
// this thread waiting for the user's response! After the user
// sees the explanation, try again to request the permission.
new AlertDialog.Builder(this)
.setTitle("Location Permission Needed")
.setMessage("This app needs the Location permission, please accept to use location functionality")
.setPositiveButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
//Prompt the user once explanation has been shown
ActivityCompat.requestPermissions(MainActivity.this,
new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
MY_PERMISSIONS_REQUEST_LOCATION );
}
})
.create()
.show();
} else {
// No explanation needed, we can request the permission.
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
MY_PERMISSIONS_REQUEST_LOCATION );
}
}
}
@Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
switch (requestCode) {
case MY_PERMISSIONS_REQUEST_LOCATION: {
// If request is cancelled, the result arrays are empty.
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// permission was granted, yay! Do the
// location-related task you need to do.
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
if (mGoogleApiClient == null) {
buildGoogleApiClient();
}
mMap.setMyLocationEnabled(true);
}
} else {
// permission denied, boo! Disable the
// functionality that depends on this permission.
Toast.makeText(this, "permission denied", Toast.LENGTH_LONG).show();
}
return;
}
// other 'case' lines to check for other
// permissions this app might request
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
private ActionBarDrawerToggle setupDrawerToggle() {
return new ActionBarDrawerToggle(this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close
) {
@Override
public void
onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
invalidateOptionsMenu();
}
@Override
public void
onDrawerClosed(View drawerView) {
super
.onDrawerClosed(drawerView);
// Code here will execute once drawer is closed
invalidateOptionsMenu();
}
};
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_touristbureau) {
mMap.clear();
loopJsonData("bureaus.json", R.drawable.touristbureau);
} else if (id == R.id.nav_wifi) {
mMap.clear();
loopJsonData("wifi.json", R.drawable.wifiorange);
} else if (id == R.id.nav_bikes) {
mMap.clear();
loopJsonData("bike.json", R.drawable.bikers);
} else if (id == R.id.nav_hideout) {
mMap.clear();
loopJsonData("hideout.json", R.drawable.hideout);
} else if (id == R.id.nav_explainhideout) {
Intent intent = new Intent(this, HideoutsActivity.class);
startActivity(intent);
} else if (id == R.id.nav_atm) {
mMap.clear();
loopJsonData("atm.json", R.drawable.atm);
} else if (id == R.id.nav_bars) {
mMap.clear();
loopJsonData("bars.json", R.drawable.barikon);
} else if (id == R.id.nav_clubs) {
mMap.clear();
loopJsonData("clubs.json", R.drawable.clubic);
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
public static void saveSharedSetting(Context ctx, String settingName, String settingValue) {
SharedPreferences sharedPref = ctx.getSharedPreferences(PREFERENCES_FILE, Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPref.edit();
editor.putString(settingName, settingValue);
editor.apply();
}
public static String readSharedSetting(Context ctx, String settingName, String defaultValue) {
SharedPreferences sharedPref = ctx.getSharedPreferences(PREFERENCES_FILE, Context.MODE_PRIVATE);
return sharedPref.getString(settingName, defaultValue);
}
依赖
compile fileTree(include: ['*.jar'], dir: 'libs')
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:24.2.1'
compile 'com.android.support:design:24.2.1'
compile 'com.google.android.gms:play-services-location:9.8.0'
compile 'com.google.android.gms:play-services-maps:9.8.0'
compile 'com.google.maps.android:android-maps-utils:0.4+'
testCompile 'junit:junit:4.12'
compile 'com.google.android.gms:play-services-appindexing:9.8.0'
XML
<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="336dp"
android:layout_height="242dp"
tools:context="com.example.abbbe.lostinstockholm.MainActivity"
android:layout_alignParentStart="true"
android:layout_alignParentEnd="true"
android:layout_below="@+id/switch1"
android:layout_alignParentBottom="true" />
<include
layout="@layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="@layout/nav_header_main"
app:menu="@menu/activity_main_drawer" />
加了：权限
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />