TemMax · October 8, 2020 09:51 · Oct 8, 2020 · Jun 16, 2020
diff --git a/KeyboardAwareFrameLayout.kt b/KeyboardAwareFrameLayout.kt
@@ -37,9 +37,13 @@ class SizeNotifierFrameLayout @JvmOverloads constructor(
     val isKeyboardShowed: Boolean
         get() = keyboardSize > minKeyboardSize
 
+    var isUpdatePaddingWhenKeyboardShowed = true
+
     init {
         doOnApplyWindowInsets { _, insets, initialPadding ->
-            updatePadding(bottom = initialPadding.bottom + insets.systemWindowInsetBottom)
+            if (isUpdatePaddingWhenKeyboardShowed) {
+                updatePadding(bottom = initialPadding.bottom + insets.systemWindowInsetBottom)
+            }
             keyboardSize = insets.systemWindowInsetBottom
             insets
         }

diff --git a/KeyboardAwareFrameLayout.kt b/KeyboardAwareFrameLayout.kt
@@ -0,0 +1,78 @@
+import android.content.Context
+import android.util.AttributeSet
+import android.widget.FrameLayout
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+
+/**
+ * Before adding this:
+ * 1. In AndroidManifest in your <activity/> tag android:windowSoftInputMode="adjustResize"
+ * 2. Enable "EDGE-TO-EDGE" mode in your activity -> window.decorView.systemUiVisibility = decorView.systemUiVisibility or (View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION or View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN or View.SYSTEM_UI_FLAG_LAYOUT_STABLE)
+ * 2.1. Set colors for status and navigation bars:
+ *          window.statusBarColor = [yourColor]
+ *          window.navigationBarColor = [yourColor]
+ * 2.2. if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
+ *          window.attributes.layoutInDisplayCutoutMode = WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_SHORT_EDGES
+ *      }
+ * 3. Profit
+ */
+typealias KeyboardStateListener = (isShowed: Boolean) -> Unit
+
+class SizeNotifierFrameLayout @JvmOverloads constructor(
+        context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0
+) : FrameLayout(context, attrs, defStyleAttr) {
+
+    private companion object {
+        private val minKeyboardSize = Screen.dp(100)
+    }
+
+    private var keyboardStateListener: KeyboardStateListener? = null
+
+    private var keyboardSize = 0
+        set(value) {
+            field = value
+            keyboardStateListener?.invoke(isKeyboardShowed)
+        }
+
+    val isKeyboardShowed: Boolean
+        get() = keyboardSize > minKeyboardSize
+
+    init {
+        doOnApplyWindowInsets { _, insets, initialPadding ->
+            updatePadding(bottom = initialPadding.bottom + insets.systemWindowInsetBottom)
+            keyboardSize = insets.systemWindowInsetBottom
+            insets
+        }
+    }
+
+    fun setKeyboardStateListener(listener: KeyboardStateListener?) {
+        this.keyboardStateListener = listener
+    }
+
+}
+
+fun View.doOnApplyWindowInsets(block: (View, insets: WindowInsetsCompat, initialPadding: Rect) -> WindowInsetsCompat) {
+    val initialPadding = recordInitialPaddingForView(this)
+    ViewCompat.setOnApplyWindowInsetsListener(this) { v, insets ->
+        block(v, insets, initialPadding)
+    }
+    requestApplyInsetsWhenAttached()
+}
+
+private fun recordInitialPaddingForView(view: View) =
+        Rect(view.paddingLeft, view.paddingTop, view.paddingRight, view.paddingBottom)
+
+private fun View.requestApplyInsetsWhenAttached() {
+    if (isAttachedToWindow) {
+        ViewCompat.requestApplyInsets(this)
+    } else {
+        addOnAttachStateChangeListener(object : View.OnAttachStateChangeListener {
+            override fun onViewAttachedToWindow(v: View) {
+                v.removeOnAttachStateChangeListener(this)
+                ViewCompat.requestApplyInsets(v)
+            }
+
+            override fun onViewDetachedFromWindow(v: View) = Unit
+        })
+    }
+}