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Use WindowInsetsCompat for navigation bar height #12

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Use WindowInsetsCompat for navigation bar height #12

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33 changes: 10 additions & 23 deletions android/src/main/kotlin/com/nschairer/keyboard_height_plugin/KeyboardHeightPlugin.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,8 @@ import io.flutter.embedding.engine.plugins.FlutterPlugin
import io.flutter.plugin.common.EventChannel
import io.flutter.embedding.engine.plugins.activity.ActivityAware
import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding
import androidx.core.view.ViewCompat
import androidx.core.view.WindowInsetsCompat

class KeyboardHeightPlugin : FlutterPlugin, EventChannel.StreamHandler, ActivityAware {
private val keyboardHeightEventChannelName = "keyboardHeightEventChannel"
Expand All @@ -33,15 +35,20 @@ class KeyboardHeightPlugin : FlutterPlugin, EventChannel.StreamHandler, Activity
rootView.getWindowVisibleDisplayFrame(r)

val screenHeight = rootView.height
val navigationBarHeight = getNavigationBarHeight();
val insets = ViewCompat.getRootWindowInsets(rootView)
val navigationBarHeight = insets?.getInsets(WindowInsetsCompat.Type.navigationBars())?.bottom ?: 0;
val isNavigationBarVisible = insets?.isVisible(WindowInsetsCompat.Type.navigationBars()) ?: false

var keypadHeight = screenHeight - r.bottom
if (isNavigationBarVisible()) {

if (isNavigationBarVisible) {
keypadHeight -= navigationBarHeight
}

val displayMetrics = activityPluginBinding?.activity?.resources?.displayMetrics
val logicalKeypadHeight = keypadHeight / (displayMetrics?.density ?: 1f)

if (keypadHeight > screenHeight * 0.15) {
if (keypadHeight > screenHeight * 0.02) {
events?.success(logicalKeypadHeight.toDouble())
} else {
events?.success(0.0)
Expand All @@ -54,26 +61,6 @@ class KeyboardHeightPlugin : FlutterPlugin, EventChannel.StreamHandler, Activity
eventSink = null
}

private fun getNavigationBarHeight(): Int {
val resourceId = activityPluginBinding?.activity?.resources?.getIdentifier("navigation_bar_height", "dimen", "android")
return if (resourceId != null && resourceId > 0) {
activityPluginBinding?.activity?.resources?.getDimensionPixelSize(resourceId) ?: 0
} else {
0
}
}

private fun isNavigationBarVisible(): Boolean {
val decorView = activityPluginBinding?.activity?.window?.decorView
val rootWindowInsets = decorView?.rootWindowInsets ?: return false
return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
rootWindowInsets.isVisible(android.view.WindowInsets.Type.navigationBars())
} else {
val systemWindowInsetBottom = rootWindowInsets.systemWindowInsetBottom
systemWindowInsetBottom > 0
}
}

// Implement ActivityAware methods
override fun onAttachedToActivity(binding: ActivityPluginBinding) {
activityPluginBinding = binding
Expand Down