Replace some listeners with flowbindings

app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderActivity.kt

@@ -19,7 +19,6 @@ import android.view.View
 import android.view.WindowManager
 import android.view.animation.Animation
 import android.view.animation.AnimationUtils
-import android.widget.SeekBar
 import androidx.core.view.ViewCompat
 import com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView
 import eu.kanade.tachiyomi.R
@@ -52,7 +51,6 @@ import eu.kanade.tachiyomi.util.view.isDefaultBar
 import eu.kanade.tachiyomi.util.view.showBar
 import eu.kanade.tachiyomi.util.view.visible
 import eu.kanade.tachiyomi.widget.SimpleAnimationListener
-import eu.kanade.tachiyomi.widget.SimpleSeekBarListener
 import java.io.File
 import java.util.concurrent.TimeUnit
 import kotlin.math.abs
@@ -61,6 +59,7 @@ import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.flow.sample
 import nucleus.factory.RequiresPresenter
+import reactivecircus.flowbinding.android.widget.progressChanges
 import rx.Observable
 import rx.android.schedulers.AndroidSchedulers
 import rx.subscriptions.CompositeSubscription
@@ -284,13 +283,13 @@ class ReaderActivity : BaseRxActivity<ReaderActivityBinding, ReaderPresenter>()
         }
 
         // Init listeners on bottom menu
-        binding.pageSeekbar.setOnSeekBarChangeListener(object : SimpleSeekBarListener() {
-            override fun onProgressChanged(seekBar: SeekBar, value: Int, fromUser: Boolean) {
-                if (viewer != null && fromUser) {
-                    moveToPageIndex(value)
+        binding.pageSeekbar.progressChanges()
+            .onEach {
+                if (viewer != null) {
+                    moveToPageIndex(it)
                 }
             }
-        })
+            .launchIn(scope)
         binding.leftChapter.setOnClickListener {
             if (viewer != null) {
                 if (viewer is R2LPagerViewer)

app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderColorFilterSheet.kt

@@ -3,7 +3,6 @@ package eu.kanade.tachiyomi.ui.reader
 import android.graphics.Color
 import android.view.View
 import android.view.ViewGroup
-import android.widget.SeekBar
 import androidx.annotation.ColorInt
 import com.google.android.material.bottomsheet.BottomSheetBehavior
 import com.google.android.material.bottomsheet.BottomSheetDialog
@@ -12,7 +11,6 @@ import eu.kanade.tachiyomi.data.preference.PreferencesHelper
 import eu.kanade.tachiyomi.util.view.gone
 import eu.kanade.tachiyomi.util.view.visible
 import eu.kanade.tachiyomi.widget.IgnoreFirstSpinnerListener
-import eu.kanade.tachiyomi.widget.SimpleSeekBarListener
 import kotlin.math.abs
 import kotlinx.android.synthetic.main.reader_color_filter.brightness_seekbar
 import kotlinx.android.synthetic.main.reader_color_filter.color_filter_mode
@@ -29,9 +27,13 @@ import kotlinx.android.synthetic.main.reader_color_filter.txt_color_filter_green
 import kotlinx.android.synthetic.main.reader_color_filter.txt_color_filter_red_value
 import kotlinx.android.synthetic.main.reader_color_filter_sheet.brightness_overlay
 import kotlinx.android.synthetic.main.reader_color_filter_sheet.color_overlay
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.flow.sample
+import reactivecircus.flowbinding.android.widget.progressChanges
 import uy.kohesive.injekt.injectLazy
 
 /**
@@ -39,6 +41,8 @@ import uy.kohesive.injekt.injectLazy
  */
 class ReaderColorFilterSheet(private val activity: ReaderActivity) : BottomSheetDialog(activity) {
 
+    private val scope = CoroutineScope(Job() + Dispatchers.Main)
+
     private val preferences by injectLazy<PreferencesHelper>()
 
     private var sheetBehavior: BottomSheetBehavior<*>? = null
@@ -93,45 +97,25 @@ class ReaderColorFilterSheet(private val activity: ReaderActivity) : BottomSheet
         }
         color_filter_mode.setSelection(preferences.colorFilterMode().get(), false)
 
-        seekbar_color_filter_alpha.setOnSeekBarChangeListener(object : SimpleSeekBarListener() {
-            override fun onProgressChanged(seekBar: SeekBar, value: Int, fromUser: Boolean) {
-                if (fromUser) {
-                    setColorValue(value, ALPHA_MASK, 24)
-                }
-            }
-        })
-
-        seekbar_color_filter_red.setOnSeekBarChangeListener(object : SimpleSeekBarListener() {
-            override fun onProgressChanged(seekBar: SeekBar, value: Int, fromUser: Boolean) {
-                if (fromUser) {
-                    setColorValue(value, RED_MASK, 16)
-                }
-            }
-        })
-
-        seekbar_color_filter_green.setOnSeekBarChangeListener(object : SimpleSeekBarListener() {
-            override fun onProgressChanged(seekBar: SeekBar, value: Int, fromUser: Boolean) {
-                if (fromUser) {
-                    setColorValue(value, GREEN_MASK, 8)
-                }
-            }
-        })
-
-        seekbar_color_filter_blue.setOnSeekBarChangeListener(object : SimpleSeekBarListener() {
-            override fun onProgressChanged(seekBar: SeekBar, value: Int, fromUser: Boolean) {
-                if (fromUser) {
-                    setColorValue(value, BLUE_MASK, 0)
-                }
-            }
-        })
-
-        brightness_seekbar.setOnSeekBarChangeListener(object : SimpleSeekBarListener() {
-            override fun onProgressChanged(seekBar: SeekBar, value: Int, fromUser: Boolean) {
-                if (fromUser) {
-                    preferences.customBrightnessValue().set(value)
-                }
-            }
-        })
+        seekbar_color_filter_alpha.progressChanges()
+            .onEach { setColorValue(it, ALPHA_MASK, 24) }
+            .launchIn(scope)
+
+        seekbar_color_filter_red.progressChanges()
+            .onEach { setColorValue(it, RED_MASK, 16) }
+            .launchIn(scope)
+
+        seekbar_color_filter_green.progressChanges()
+            .onEach { setColorValue(it, GREEN_MASK, 8) }
+            .launchIn(scope)
+
+        seekbar_color_filter_blue.progressChanges()
+            .onEach { setColorValue(it, BLUE_MASK, 0) }
+            .launchIn(scope)
+
+        brightness_seekbar.progressChanges()
+            .onEach { preferences.customBrightnessValue().set(it) }
+            .launchIn(scope)
     }
 
     override fun onStart() {

app/src/main/java/eu/kanade/tachiyomi/ui/source/filter/TextItem.kt

@@ -10,10 +10,17 @@ import eu.davidea.flexibleadapter.items.IFlexible
 import eu.davidea.viewholders.FlexibleViewHolder
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.source.model.Filter
-import eu.kanade.tachiyomi.widget.SimpleTextWatcher
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+import reactivecircus.flowbinding.android.widget.textChanges
 
 open class TextItem(val filter: Filter.Text) : AbstractFlexibleItem<TextItem.Holder>() {
 
+    private val scope = CoroutineScope(Job() + Dispatchers.Main)
+
     override fun getLayoutRes(): Int {
         return R.layout.navigation_view_text
     }
@@ -25,11 +32,9 @@ open class TextItem(val filter: Filter.Text) : AbstractFlexibleItem<TextItem.Hol
     override fun bindViewHolder(adapter: FlexibleAdapter<IFlexible<RecyclerView.ViewHolder>>, holder: Holder, position: Int, payloads: List<Any?>?) {
         holder.wrapper.hint = filter.name
         holder.edit.setText(filter.state)
-        holder.edit.addTextChangedListener(object : SimpleTextWatcher() {
-            override fun onTextChanged(s: CharSequence, start: Int, before: Int, count: Int) {
-                filter.state = s.toString()
-            }
-        })
+        holder.edit.textChanges()
+            .onEach { filter.state = it.toString() }
+            .launchIn(scope)
     }
 
     override fun equals(other: Any?): Boolean {

app/src/main/java/eu/kanade/tachiyomi/widget/DialogCustomDownloadView.kt

@@ -12,6 +12,12 @@ import kotlinx.android.synthetic.main.download_custom_amount.view.btn_decrease_1
 import kotlinx.android.synthetic.main.download_custom_amount.view.btn_increase
 import kotlinx.android.synthetic.main.download_custom_amount.view.btn_increase_10
 import kotlinx.android.synthetic.main.download_custom_amount.view.myNumber
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+import reactivecircus.flowbinding.android.widget.textChanges
 import timber.log.Timber
 
 /**
@@ -20,6 +26,8 @@ import timber.log.Timber
 class DialogCustomDownloadView @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null) :
         LinearLayout(context, attrs) {
 
+    private val scope = CoroutineScope(Job() + Dispatchers.Main)
+
     /**
      * Current amount of custom download chooser.
      */
@@ -73,16 +81,16 @@ class DialogCustomDownloadView @JvmOverloads constructor(context: Context, attrs
         }
 
         // When user inputs custom number set amount equal to input.
-        myNumber.addTextChangedListener(object : SimpleTextWatcher() {
-            override fun onTextChanged(s: CharSequence, start: Int, before: Int, count: Int) {
+        myNumber.textChanges()
+            .onEach {
                 try {
-                    amount = getAmount(Integer.parseInt(s.toString()))
+                    amount = getAmount(Integer.parseInt(it.toString()))
                 } catch (error: NumberFormatException) {
                     // Catch NumberFormatException to prevent parse exception when input is empty.
                     Timber.e(error)
                 }
             }
-        })
+            .launchIn(scope)
     }
 
     /**

app/src/main/java/eu/kanade/tachiyomi/widget/PreCachingLayoutManager.kt

@@ -1,25 +0,0 @@
-package eu.kanade.tachiyomi.widget
-
-import android.content.Context
-import androidx.recyclerview.widget.LinearLayoutManager
-import androidx.recyclerview.widget.RecyclerView
-
-class PreCachingLayoutManager(context: Context) : LinearLayoutManager(context) {
-
-    init {
-        isItemPrefetchEnabled = false
-    }
-
-    companion object {
-        const val DEFAULT_EXTRA_LAYOUT_SPACE = 600
-    }
-
-    var extraLayoutSpace = 0
-
-    override fun getExtraLayoutSpace(state: RecyclerView.State): Int {
-        if (extraLayoutSpace > 0) {
-            return extraLayoutSpace
-        }
-        return DEFAULT_EXTRA_LAYOUT_SPACE
-    }
-}

app/src/main/java/eu/kanade/tachiyomi/widget/SimpleSeekBarListener.kt

@@ -1,14 +0,0 @@
-package eu.kanade.tachiyomi.widget
-
-import android.widget.SeekBar
-
-open class SimpleSeekBarListener : SeekBar.OnSeekBarChangeListener {
-    override fun onProgressChanged(seekBar: SeekBar, value: Int, fromUser: Boolean) {
-    }
-
-    override fun onStartTrackingTouch(seekBar: SeekBar) {
-    }
-
-    override fun onStopTrackingTouch(seekBar: SeekBar) {
-    }
-}

app/src/main/java/eu/kanade/tachiyomi/widget/SimpleTextWatcher.kt

@@ -1,12 +0,0 @@
-package eu.kanade.tachiyomi.widget
-
-import android.text.Editable
-import android.text.TextWatcher
-
-open class SimpleTextWatcher : TextWatcher {
-    override fun beforeTextChanged(s: CharSequence, start: Int, count: Int, after: Int) {}
-
-    override fun onTextChanged(s: CharSequence, start: Int, before: Int, count: Int) {}
-
-    override fun afterTextChanged(s: Editable) {}
-}

app/src/main/java/eu/kanade/tachiyomi/widget/preference/LoginDialogPreference.kt

@@ -13,7 +13,6 @@ import com.dd.processbutton.iml.ActionProcessButton
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
 import eu.kanade.tachiyomi.ui.base.controller.DialogController
-import eu.kanade.tachiyomi.widget.SimpleTextWatcher
 import kotlinx.android.synthetic.main.pref_account_login.view.login
 import kotlinx.android.synthetic.main.pref_account_login.view.password
 import kotlinx.android.synthetic.main.pref_account_login.view.show_password
@@ -66,16 +65,6 @@ abstract class LoginDialogPreference(
             login.setOnClickListener { checkLogin() }
 
             setCredentialsOnView(this)
-
-            show_password.isEnabled = password.text.isNullOrEmpty()
-
-            password.addTextChangedListener(object : SimpleTextWatcher() {
-                override fun onTextChanged(s: CharSequence, start: Int, before: Int, count: Int) {
-                    if (s.isEmpty()) {
-                        show_password.isEnabled = true
-                    }
-                }
-            })
         }
     }