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package com.mapbox.mapboxsdk.testapp.activity.fragment
import android.content.Context
import android.os.Bundle
import android.support.v4.app.Fragment
import android.support.v4.app.FragmentManager
import android.support.v4.app.FragmentStatePagerAdapter
import android.support.v7.app.AppCompatActivity
import com.mapbox.mapboxsdk.camera.CameraPosition
import com.mapbox.mapboxsdk.geometry.LatLng
import com.mapbox.mapboxsdk.maps.MapboxMapOptions
import com.mapbox.mapboxsdk.maps.Style
import com.mapbox.mapboxsdk.maps.SupportMapFragment
import com.mapbox.mapboxsdk.testapp.R
import kotlinx.android.synthetic.main.activity_viewpager.*
/**
* Test activity showcasing using the Android SDK ViewPager API to show MapFragments.
*/
class ViewPagerActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_viewpager)
viewPager.adapter = MapFragmentAdapter(this, supportFragmentManager)
}
override fun onRestoreInstanceState(savedInstanceState: Bundle) {
super.onRestoreInstanceState(savedInstanceState)
val currentPosition = viewPager.currentItem
val offscreenLimit = viewPager.offscreenPageLimit
for (i in currentPosition - offscreenLimit..currentPosition + offscreenLimit) {
if (i < 0 || i > viewPager.adapter?.count ?: 0) {
continue
}
val mapFragment = viewPager.adapter?.instantiateItem(viewPager, i) as SupportMapFragment
mapFragment.getMapAsync(i)
}
}
internal class MapFragmentAdapter(private val context: Context, fragmentManager: FragmentManager) : FragmentStatePagerAdapter(fragmentManager) {
override fun getCount(): Int {
return NUM_ITEMS
}
override fun getItem(position: Int): Fragment? {
val options = MapboxMapOptions.createFromAttributes(context)
options.textureMode(true)
options.camera(
CameraPosition.Builder()
.zoom(3.0)
.target(
when (position) {
0 -> {
LatLng(34.920526, 102.634774)
}
1 -> {
LatLng(62.326440, 92.764913)
}
2 -> {
LatLng(-25.007786, 133.623852)
}
3 -> {
LatLng(62.326440, 92.764913)
}
else -> {
LatLng(34.920526, 102.634774)
}
}
)
.build())
val fragment = SupportMapFragment.newInstance(options)
fragment.getMapAsync(position)
return fragment
}
override fun getPageTitle(position: Int): CharSequence? {
return "Page $position"
}
companion object {
private const val NUM_ITEMS = 5
}
}
}
fun SupportMapFragment.getMapAsync(index: Int) {
this.getMapAsync {
it.setStyle(
when (index) {
0 -> Style.MAPBOX_STREETS
1 -> Style.DARK
2 -> Style.SATELLITE
3 -> Style.LIGHT
4 -> Style.TRAFFIC_NIGHT
else -> Style.MAPBOX_STREETS
}
)
}
}
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