Support for PopupWindow

Author: DylanCaiCoding

viewbinding-ktx/src/main/java/com/dylanc/viewbinding/PopupWindow.kt

@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2020. Dylan Cai
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+@file:Suppress("unused")
+
+package com.dylanc.viewbinding
+
+import android.app.Activity
+import android.view.ViewGroup
+import android.widget.PopupWindow
+import androidx.fragment.app.Fragment
+import androidx.viewbinding.ViewBinding
+
+inline fun <reified VB : ViewBinding> Activity.popupWindow(
+  width: Int = ViewGroup.LayoutParams.WRAP_CONTENT,
+  height: Int = ViewGroup.LayoutParams.WRAP_CONTENT,
+  focusable: Boolean = false,
+  crossinline block: VB.() -> Unit
+) =
+  lazy {
+    PopupWindow(inflateBinding<VB>(layoutInflater).apply(block).root, width, height, focusable)
+  }
+
+inline fun <reified VB : ViewBinding> Fragment.popupWindow(
+  width: Int = ViewGroup.LayoutParams.WRAP_CONTENT,
+  height: Int = ViewGroup.LayoutParams.WRAP_CONTENT,
+  focusable: Boolean = false,
+  crossinline block: VB.() -> Unit
+) =
+  lazy {
+    PopupWindow(inflateBinding<VB>(layoutInflater).apply(block).root, width, height, focusable)
+  }

viewbinding-ktx/src/main/java/com/dylanc/viewbinding/View.kt

@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2020. Dylan Cai
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.dylanc.viewbinding
+
+import android.view.View
+import androidx.viewbinding.ViewBinding
+
+inline fun <reified VB : ViewBinding> View.getBinding() = getBinding(VB::class.java)
+
+@Suppress("UNCHECKED_CAST")
+fun <VB : ViewBinding> View.getBinding(clazz: Class<VB>) =
+  bindingCache as? VB ?: (clazz.getMethod("bind", View::class.java)
+    .invoke(null, this) as VB)
+    .also { binding -> bindingCache = binding }
+
+private var View.bindingCache: Any?
+  get() = getTag(Int.MIN_VALUE)
+  set(value) = setTag(Int.MIN_VALUE, value)

viewbinding-ktx/src/main/java/com/dylanc/viewbinding/ViewBinding.kt

@@ -21,14 +21,8 @@ package com.dylanc.viewbinding
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import androidx.databinding.ViewDataBinding
-import androidx.lifecycle.LifecycleOwner
 import androidx.viewbinding.ViewBinding
 
-private var View.binding: Any?
-  get() = getTag(Int.MIN_VALUE)
-  set(value) = setTag(Int.MIN_VALUE, value)
-
 inline fun <reified VB : ViewBinding> inflateBinding(layoutInflater: LayoutInflater) =
   VB::class.java.getMethod("inflate", LayoutInflater::class.java).invoke(null, layoutInflater) as VB
 
@@ -40,10 +34,3 @@ inline fun <reified VB : ViewBinding> inflateBinding(
 ) =
   VB::class.java.getMethod("inflate", LayoutInflater::class.java, ViewGroup::class.java, Boolean::class.java)
     .invoke(null, layoutInflater, parent, attachToParent) as VB
-
-inline fun <reified VB : ViewBinding> View.getBinding() = getBinding(VB::class.java)
-
-@Suppress("UNCHECKED_CAST")
-fun <VB : ViewBinding> View.getBinding(clazz: Class<VB>) =
-  binding as? VB ?: (clazz.getMethod("bind", View::class.java).invoke(null, this) as VB).also { binding = it }
-

viewbinding-nonreflection-ktx/src/main/java/com/dylanc/viewbinding/nonreflection/PopupWindow.kt

@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2020. Dylan Cai
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+@file:Suppress("unused")
+
+package com.dylanc.viewbinding.nonreflection
+
+import android.app.Activity
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import android.widget.PopupWindow
+import androidx.fragment.app.Fragment
+import androidx.viewbinding.ViewBinding
+
+fun <VB : ViewBinding> Activity.popupWindow(
+  inflate: (LayoutInflater) -> VB,
+  width: Int = ViewGroup.LayoutParams.WRAP_CONTENT,
+  height: Int = ViewGroup.LayoutParams.WRAP_CONTENT,
+  focusable: Boolean = false,
+  block: VB.() -> Unit
+) =
+  lazy {
+    PopupWindow(inflate(layoutInflater).apply(block).root, width, height, focusable)
+  }
+
+fun <VB : ViewBinding> Fragment.popupWindow(
+  inflate: (LayoutInflater) -> VB,
+  width: Int = ViewGroup.LayoutParams.WRAP_CONTENT,
+  height: Int = ViewGroup.LayoutParams.WRAP_CONTENT,
+  focusable: Boolean = false,
+  block: VB.() -> Unit
+) =
+  lazy {
+    PopupWindow(inflate(layoutInflater).apply(block).root, width, height, focusable)
+  }

viewbinding-nonreflection-ktx/src/main/java/com/dylanc/viewbinding/nonreflection/View.kt

@@ -25,4 +25,8 @@ import androidx.viewbinding.ViewBinding
 
 @Suppress("UNCHECKED_CAST")
 fun <VB : ViewBinding> View.getBinding(bind: (View) -> VB): VB =
-  (getTag(Int.MIN_VALUE) as? VB) ?: bind(this).also { binding -> setTag(Int.MIN_VALUE, binding) }
+  (bindingCache as? VB) ?: bind(this).also { binding -> bindingCache = binding }
+
+private var View.bindingCache: Any?
+  get() = getTag(Int.MIN_VALUE)
+  set(value) = setTag(Int.MIN_VALUE, value)