Added actionable items to empty view

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

@@ -2,11 +2,15 @@ package eu.kanade.tachiyomi.widget
 
 import android.content.Context
 import android.util.AttributeSet
-import android.view.View
 import android.widget.RelativeLayout
+import androidx.annotation.DrawableRes
+import androidx.annotation.StringRes
+import com.google.android.material.button.MaterialButton
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.util.system.getResourceColor
+import eu.kanade.tachiyomi.util.view.gone
 import eu.kanade.tachiyomi.util.view.setVectorCompat
+import eu.kanade.tachiyomi.util.view.visible
 import kotlinx.android.synthetic.main.common_view_empty.view.*
 
 class EmptyView @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null) :
@@ -20,17 +24,46 @@ class EmptyView @JvmOverloads constructor(context: Context, attrs: AttributeSet?
      * Hide the information view
      */
     fun hide() {
-        this.visibility = View.GONE
+        this.gone()
     }
 
+    /**
+     * Show the information view
+     * @param textResource text of information view
+     */
+    fun show(@DrawableRes drawable: Int, @StringRes textResource: Int, actions: List<Action>? = null) {
+        show(drawable, context.getString(textResource), actions)
+    }
     /**
      * Show the information view
      * @param drawable icon of information view
      * @param textResource text of information view
      */
-    fun show(drawable: Int, textResource: Int) {
+    fun show(@DrawableRes drawable: Int, message: String, actions: List<Action>? = null) {
         image_view.setVectorCompat(drawable, context.getResourceColor(android.R.attr.textColorHint))
-        text_label.text = context.getString(textResource)
+        text_label.text = message
-        this.visibility = View.VISIBLE
+
+        actions_container.removeAllViews()
+        if (!actions.isNullOrEmpty()) {
+            actions.forEach {
+                val button = (inflate(
+                    context,
+                    R.layout.material_text_button,
+                    null
+                ) as MaterialButton).apply {
+                    setText(it.resId)
+                    setOnClickListener(it.listener)
+                }
+
+                actions_container.addView(button)
             }
         }
+
+        this.visible()
+    }
+
+    data class Action(
+        @StringRes val resId: Int,
+        val listener: OnClickListener
+    )
+}

app/src/main/res/layout/common_view_empty.xml

@@ -1,24 +1,32 @@
 <?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="wrap_content"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:layout_gravity="center"
+    android:gravity="center"
-    xmlns:android="http://schemas.android.com/apk/res/android">
+    android:orientation="vertical"
+    android:padding="16dp">
 
     <androidx.appcompat.widget.AppCompatImageView
         android:id="@+id/image_view"
         android:layout_width="128dp"
         android:layout_height="128dp"
-        android:layout_centerHorizontal="true"/>
+        tools:src="@drawable/ic_file_download_white_24dp"/>
 
     <TextView
         android:id="@+id/text_label"
-        android:layout_margin="16dp"
         style="@style/TextAppearance.Medium.Body2.Hint"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_below="@+id/image_view"
+        android:layout_margin="16dp"
         android:gravity="center"
-        android:layout_centerHorizontal="true"/>
+        tools:text="Label" />
 
-</RelativeLayout>
+    <LinearLayout
+        android:id="@+id/actions_container"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:orientation="vertical" />
+
+</LinearLayout>

app/src/main/res/layout/material_text_button.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<com.google.android.material.button.MaterialButton style="@style/Theme.Widget.Button.TextButton"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:text="@string/set_as_default_for_all"
+    xmlns:android="http://schemas.android.com/apk/res/android" />