I have created activity: MapsActivity, which shows my location on map.
public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {
private GoogleMap mMap;
private LocationManager locationManager;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
}
@Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
Criteria criteria = new Criteria();
Location location = locationManager.getLastKnownLocation(locationManager.getBestProvider(criteria, false));
double lat = location.getLatitude();
double lng = location.getLongitude();
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return;
}
mMap.setMyLocationEnabled(true);
// Add a marker in Sydney and move the camera
LatLng place = new LatLng(lat,lng);
mMap.addMarker(new MarkerOptions().position(place).title("Marker in Sydney"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(place));
}
}
I created MainActivity, with a button, which I want to click to move to MapsActivity, here it's code:
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void showMyLocation(View view){
Intent intentControls = new Intent(this, MapsActivity.class);
startActivity(intentControls);
}
}
Gradle
android {
compileSdkVersion 27
buildToolsVersion "27.0.1"
defaultConfig {
applicationId "com.example.lukasz.aaaaa"
minSdkVersion 21
targetSdkVersion 27
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:26.0.0-alpha1'
compile 'com.google.android.gms:play-services-maps:10.2.6'
compile 'com.android.support.constraint:constraint-layout:1.0.0-alpha8'
testCompile 'junit:junit:4.12'
}
AndroidManifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.lukasz.aaaaa">
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
<meta-data
android:name="com.google.android.geo.API_KEY"
android:value="@string/google_maps_key" />
<activity
android:name=".MapsActivity"
android:label="@string/title_activity_maps">
</activity>
<activity android:name=".MainActivity"
android:label="Mapy">>
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
The problem is, that after I click the button in my MainActivity, the application crashes with
FATAL EXCEPTION: main Process: com.example.lukasz.aaaaa, PID: 2433 java.lang.IllegalArgumentException: invalid provider: null at android.location.LocationManager.checkProvider(LocationManager.java:2099) at android.location.LocationManager.getLastKnownLocation(LocationManager.java:1200) at com.example.lukasz.aaaaa.MapsActivity.onMapReady(MapsActivity.java:56) at com.google.android.gms.maps.SupportMapFragment$zza$1.zza(Unknown Source:7) at com.google.android.gms.maps.internal.zzt$zza.onTransact(Unknown Source:30) at android.os.Binder.transact(Binder.java:627) at gl.b(:com.google.android.gms.DynamiteModulesB@11577470:20) at com.google.android.gms.maps.internal.bf.a(:com.google.android.gms.DynamiteModulesB@11577470:5) at com.google.maps.api.android.lib6.impl.bc.run(:com.google.android.gms.DynamiteModulesB@11577470:5) at android.os.Handler.handleCallback(Handler.java:790) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:164) at android.app.ActivityThread.main(ActivityThread.java:6494) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)r
My question is how do I run Google Map Activity from another activity, using Intent?
