111 lines
3.5 KiB
Kotlin
111 lines
3.5 KiB
Kotlin
package org.oxycblt.auxio
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import android.os.Bundle
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import android.util.Log
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import android.view.LayoutInflater
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import android.view.View
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import android.view.ViewGroup
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import androidx.core.content.ContextCompat
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import androidx.fragment.app.Fragment
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import androidx.viewpager2.adapter.FragmentStateAdapter
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import com.google.android.material.tabs.TabLayout
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import com.google.android.material.tabs.TabLayoutMediator
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import org.oxycblt.auxio.databinding.FragmentMainBinding
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import org.oxycblt.auxio.library.LibraryFragment
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import org.oxycblt.auxio.songs.SongsFragment
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import org.oxycblt.auxio.theme.accent
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import org.oxycblt.auxio.theme.getInactiveAlpha
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import org.oxycblt.auxio.theme.getTransparentAccent
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import org.oxycblt.auxio.theme.toColor
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class MainFragment : Fragment() {
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private val shownFragments = listOf(0, 1)
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private val libraryFragment: LibraryFragment by lazy { LibraryFragment() }
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private val songsFragment: SongsFragment by lazy { SongsFragment() }
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private val tabIcons = listOf(
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R.drawable.ic_library,
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R.drawable.ic_song
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)
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override fun onCreateView(
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inflater: LayoutInflater,
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container: ViewGroup?,
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savedInstanceState: Bundle?
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): View? {
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val binding = FragmentMainBinding.inflate(inflater)
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binding.lifecycleOwner = viewLifecycleOwner
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binding.viewPager.adapter = PagerAdapter()
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val colorActive = accent.first.toColor(requireContext())
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val colorInactive = getTransparentAccent(
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requireContext(),
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accent.first,
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getInactiveAlpha(accent.first)
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)
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// Link the ViewPager & Tab View
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TabLayoutMediator(binding.tabs, binding.viewPager) { tab, position ->
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tab.icon = ContextCompat.getDrawable(requireContext(), tabIcons[position])
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// Set the icon tint to deselected if its not the default tab
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if (position > 0) {
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tab.icon?.setTint(colorInactive)
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}
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}.attach()
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// Set up the selected/deselected colors
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binding.tabs.addOnTabSelectedListener(
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object : TabLayout.OnTabSelectedListener {
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override fun onTabSelected(tab: TabLayout.Tab) {
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tab.icon?.setTint(colorActive)
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}
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override fun onTabUnselected(tab: TabLayout.Tab) {
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tab.icon?.setTint(colorInactive)
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}
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override fun onTabReselected(tab: TabLayout.Tab?) {
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}
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}
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)
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Log.d(this::class.simpleName, "Fragment Created.")
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return binding.root
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}
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private fun fragmentAt(position: Int): Fragment {
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return when (position) {
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0 -> libraryFragment
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1 -> songsFragment
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else -> libraryFragment
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}
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}
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private inner class PagerAdapter :
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FragmentStateAdapter(childFragmentManager, viewLifecycleOwner.lifecycle) {
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override fun getItemCount(): Int = shownFragments.size
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override fun createFragment(position: Int): Fragment {
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Log.d(this::class.simpleName, "Switching to fragment $position.")
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if (shownFragments.contains(position)) {
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return fragmentAt(position)
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}
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// Not sure how this would happen but it might
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Log.e(
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this::class.simpleName,
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"Attempted to index a fragment that shouldn't be shown. Returning libraryFragment."
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)
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return libraryFragment
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}
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}
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}
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