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package com.mapbox.mapboxsdk.testapp.activity.fragment
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(supportFragmentManager)
}
override fun onRestoreInstanceState(savedInstanceState: Bundle) {
super.onRestoreInstanceState(savedInstanceState)
val currentPosition = viewPager!!.currentItem
for (i in 0 until FRAGMENT_COUNT) {
if (Math.abs(i - currentPosition) <= 1) {
viewPager.adapter?.instantiateItem(viewPager, 0)
break
}
}
}
internal class MapFragmentAdapter(fragmentManager: FragmentManager) : FragmentStatePagerAdapter(fragmentManager) {
override fun getCount(): Int {
return FRAGMENT_COUNT
}
override fun getItem(position: Int): Fragment {
return when (position) {
0 -> createFragment(Style.MAPBOX_STREETS, LatLng(34.920526, 102.634774))
1 -> createFragment(Style.DARK, LatLng(62.326440, 92.764913))
2 -> createFragment(Style.SATELLITE, LatLng(-25.007786, 133.623852))
3 -> createFragment(Style.LIGHT, LatLng(-19.922070, -43.939676))
4 -> createFragment(Style.OUTDOORS, LatLng(46.881020, 9.098098))
else -> createFragment(Style.TRAFFIC_DAY, LatLng(40.722517, -74.000029))
}
}
private fun createFragment(@Style.StyleUrl style: String, latLng: LatLng): Fragment {
val options = MapboxMapOptions().camera(CameraPosition.Builder().target(latLng).zoom(3.0).build())
val fragment = SupportMapFragment.newInstance(options)
fragment.getMapAsync { mapboxMap -> mapboxMap.setStyle(style) }
return fragment
}
override fun getPageTitle(position: Int): CharSequence? {
return "Page $position"
}
}
companion object {
const val FRAGMENT_COUNT = 6
}
}
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