-2
我正在使用Kotlin的Android應用程序使用與Pokemon Go類似的語言， 應用程序中沒有問題，但是當我將它安裝在手機中時，只顯示空白地圖，人不會去我的位置我如何解決這個問題？Pockemon轉到空地圖
MapsActivity.tkt
package ahmedchtn.pockemontn
import android.content.Context
import android.content.pm.PackageManager
import android.location.Location
import android.location.LocationListener
import android.location.LocationManager
import android.os.Build
import android.support.v4.app.FragmentActivity
import android.os.Bundle
import android.support.v4.app.ActivityCompat
import android.widget.Toast
import com.google.android.gms.maps.CameraUpdateFactory
import com.google.android.gms.maps.GoogleMap
import com.google.android.gms.maps.OnMapReadyCallback
import com.google.android.gms.maps.SupportMapFragment
import com.google.android.gms.maps.model.BitmapDescriptor
import com.google.android.gms.maps.model.BitmapDescriptorFactory
import com.google.android.gms.maps.model.LatLng
import com.google.android.gms.maps.model.MarkerOptions
class MapsActivity : FragmentActivity(), OnMapReadyCallback {
//WORK WITH USER LOCATION
private var mMap: GoogleMap? = null
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_maps)
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
val mapFragment = supportFragmentManager
.findFragmentById(R.id.map) as SupportMapFragment
mapFragment.getMapAsync(this)
checkPermmison()
LoadPockemon()
}
var ACCESSLOCATION = 123
fun checkPermmison() {
if (Build.VERSION.SDK_INT >= 23) {
if (ActivityCompat.
checkSelfPermission(this,
android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
requestPermissions(arrayOf(android.Manifest.permission.ACCESS_FINE_LOCATION), ACCESSLOCATION)
return
}
}
GetUserLocation()
}
fun GetUserLocation() {
Toast.makeText(this, "User location access on", Toast.LENGTH_LONG).show()
//TODO: Will implement later
var myLocation = MylocationListener()
var locationManager = getSystemService(Context.LOCATION_SERVICE) as LocationManager
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 3, 3f, myLocation)
var mythread = myThread()
mythread.start()
}
override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
when (requestCode) {
ACCESSLOCATION -> {
if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
GetUserLocation()
} else {
Toast.makeText(this, "We cannot access to your location", Toast.LENGTH_LONG).show()
}
}
}
super.onRequestPermissionsResult(requestCode, permissions, grantResults)
}
/**
* Manipulates the map once available.
* This callback is triggered when the map is ready to be used.
* This is where we can add markers or lines, add listeners or move the camera. In this case,
* we just add a marker near Sydney, Australia.
* If Google Play services is not installed on the device, the user will be prompted to install
* it inside the SupportMapFragment. This method will only be triggered once the user has
* installed Google Play services and returned to the app.
*/
override fun onMapReady(googleMap: GoogleMap) {
mMap = googleMap
}
var location: Location? = null
//Get user location
inner class MylocationListener : LocationListener {
constructor() {
location = Location("Start")
location!!.longitude = 0.0
location!!.longitude = 0.0
}
override fun onLocationChanged(p0: Location?) {
location = p0
}
override fun onStatusChanged(p0: String?, p1: Int, p2: Bundle?) {
//TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
}
override fun onProviderEnabled(p0: String?) {
// TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
}
override fun onProviderDisabled(p0: String?) {
//TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
}
}
var oldLocation: Location? = null
inner class myThread : Thread {
constructor() : super() {
oldLocation = Location("Start")
oldLocation!!.longitude = 0.0
oldLocation!!.longitude = 0.0
}
override fun run() {
while (true) {
try {
if (oldLocation!!.distanceTo(location) == 0f) {
continue
}
oldLocation = location
runOnUiThread {
mMap!!.clear()
// show me
val sydney = LatLng(location!!.latitude, location!!.longitude)
mMap!!.addMarker(MarkerOptions()
.position(sydney)
.title("Me")
.snippet(" here is my location")
.icon(BitmapDescriptorFactory.fromResource(R.drawable.naruto)))
mMap!!.moveCamera(CameraUpdateFactory.newLatLngZoom(sydney, 14f))
// show pockemons
for (i in 0..listPockemons.size - 1) {
var newPockemon = listPockemons[i]
if (newPockemon.IsCatch == false) {
val pockemonLoc = LatLng(newPockemon.location!!.latitude, newPockemon.location!!.longitude)
mMap!!.addMarker(MarkerOptions()
.position(pockemonLoc)
.title(newPockemon.name!!)
.snippet(newPockemon.des!! + ", power:" + newPockemon!!.power)
.icon(BitmapDescriptorFactory.fromResource(newPockemon.image!!)))
if (location!!.distanceTo(newPockemon.location) < 2) {
newPockemon.IsCatch = true
listPockemons[i] = newPockemon
playerPower += newPockemon.power!!
Toast.makeText(applicationContext,
"You catch new pockemon your new pwoer is " + playerPower,
Toast.LENGTH_LONG).show()
}
}
}
}
Thread.sleep(1000)
} catch (ex: Exception) {
}
}
}
}
var playerPower = 0.0
var listPockemons = ArrayList<Pockemon>()
fun LoadPockemon() {
listPockemons.add(Pockemon(R.drawable.charmandertn,
"Charmander", "Charmander living in japan", 55.0, 35.687997, 10.085267))
listPockemons.add(Pockemon(R.drawable.bulbasaurtn,
"Bulbasaur", "Bulbasaur living in usa", 90.5, 35.687657, 10.084838))
listPockemons.add(Pockemon(R.drawable.squirtletn,
"Squirtle", "Squirtle living in iraq", 33.5, 35.687552, 10.084623))
}
}
Pockemon.tkt
package ahmedchtn.pockemontn
import android.location.Location
/**
* Created by Ahmed on 17-06-2017.
*/
class Pockemon{
var name:String?=null
var des:String?=null
var image:Int?=null
var power:Double?=null
var location:Location?=null
var IsCatch:Boolean?=false
constructor(image:Int,name:String,des:String,power:Double,lat:Double,log:Double){
this.name=name
this.des=des
this.image=image
this.power=power
this.location= Location(name)
this.location!!.latitude=lat
this.location!!.longitude=log
this.IsCatch=false
}
}
AndroidManifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="ahmedchtn.pockemontn">
<!--
The ACCESS_COARSE/FINE_LOCATION permissions are not required to use
Google Maps Android API v2, but you must specify either coarse or fine
location permissions for the 'MyLocation' functionality.
-->
<uses-permission android:name="android.permission.INTERNET" />
<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">
<!--
The API key for Google Maps-based APIs is defined as a string resource.
(See the file "res/values/google_maps_api.xml").
Note that the API key is linked to the encryption key used to sign the APK.
You need a different API key for each encryption key, including the release key that is used to
sign the APK for publishing.
You can define the keys for the debug and release targets in src/debug/ and src/release/.
-->
<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">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
提前感謝！
我已經在我的問題剛剛添加了AndroidMAnifest – tuniprocoder