116 lines
3.7 KiB
Kotlin
116 lines
3.7 KiB
Kotlin
package code.name.monkey.retromusic.ui.fragments.base
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import android.os.Bundle
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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.annotation.NonNull
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import androidx.annotation.StringRes
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import androidx.recyclerview.widget.RecyclerView
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import code.name.monkey.appthemehelper.ThemeStore
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import code.name.monkey.retromusic.R
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import code.name.monkey.retromusic.helper.MusicPlayerRemote
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import code.name.monkey.retromusic.util.ViewUtil
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import com.google.android.material.appbar.AppBarLayout
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import com.simplecityapps.recyclerview_fastscroll.views.FastScrollRecyclerView
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import kotlinx.android.synthetic.main.fragment_main_activity_recycler_view.*
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abstract class AbsLibraryPagerRecyclerViewFragment<A : RecyclerView.Adapter<*>, LM : RecyclerView.LayoutManager> : AbsLibraryPagerFragment(), AppBarLayout.OnOffsetChangedListener {
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protected var adapter: A? = null
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protected var layoutManager: LM? = null
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override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
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val view = inflater.inflate(R.layout.fragment_main_activity_recycler_view, container, false);
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return view
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}
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override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
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super.onViewCreated(view, savedInstanceState)
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libraryFragment.addOnAppBarOffsetChangedListener(this)
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initLayoutManager()
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initAdapter()
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setUpRecyclerView()
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}
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private fun setUpRecyclerView() {
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if (recyclerView is FastScrollRecyclerView) {
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ViewUtil.setUpFastScrollRecyclerViewColor(activity!!, recyclerView as FastScrollRecyclerView, ThemeStore.accentColor(activity!!))
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}
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recyclerView.layoutManager = layoutManager
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recyclerView.adapter = adapter
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}
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private fun initAdapter() {
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adapter = createAdapter()
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adapter!!.registerAdapterDataObserver(object : RecyclerView.AdapterDataObserver() {
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override fun onChanged() {
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super.onChanged()
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checkIsEmpty()
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checkForPadding()
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}
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})
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}
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protected open val emptyMessage: Int
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@StringRes
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get() = R.string.empty
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private fun checkIsEmpty() {
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emptyText.setText(emptyMessage)
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empty.visibility = if (adapter!!.itemCount == 0) View.VISIBLE else View.GONE
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}
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private fun checkForPadding() {
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val height = if (MusicPlayerRemote.playingQueue.isEmpty())
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resources.getDimensionPixelSize(R.dimen.mini_player_height)
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else
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0
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recyclerView.setPadding(0, 0, 0, height)
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}
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private fun initLayoutManager() {
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layoutManager = createLayoutManager()
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}
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protected abstract fun createLayoutManager(): LM
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@NonNull
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protected abstract fun createAdapter(): A
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override fun onOffsetChanged(p0: AppBarLayout?, i: Int) {
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container.setPadding(container.paddingLeft, container.paddingTop,
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container.paddingRight, libraryFragment.totalAppBarScrollingRange + i)
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}
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override fun onQueueChanged() {
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super.onQueueChanged()
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checkForPadding()
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}
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override fun onServiceConnected() {
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super.onServiceConnected()
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checkForPadding()
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}
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protected fun invalidateLayoutManager() {
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initLayoutManager()
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recyclerView.layoutManager = layoutManager
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}
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protected fun invalidateAdapter() {
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initAdapter()
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checkIsEmpty()
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recyclerView.adapter = adapter
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}
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override fun onDestroyView() {
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super.onDestroyView()
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libraryFragment.removeOnAppBarOffsetChangedListener(this)
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}
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fun recyclerView(): RecyclerView {
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return recyclerView
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}
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} |