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6 import android.content.Context
7 import android.graphics.Canvas
8 import android.widget.LinearLayout
9+import androidx.core.view.OneShotPreDrawListener
10 import androidx.annotation.UiThread
11 import com.facebook.react.uimanager.BackgroundStyleApplicator
12 import com.facebook.react.uimanager.StateWrapper
14 layout(left, top, right, bottom)
15 }
17+ private var isLayoutScheduled = false
18+
19 override fun requestLayout() {
20 super.requestLayout()
21- if (shouldUseAndroidLayout) {
22+ if (shouldUseAndroidLayout && !isLayoutScheduled) {
23 // We need to force measure and layout, because React Native doesn't do it for us.
24- post { measureAndLayout() }
25+ // A posted layout runs after the frame being prepared is drawn, so a view that changes in a
26+ // mount would show unlaid-out content for a frame. The pre-draw listener lays it out before
27+ // that frame instead; the post covers a request that no frame follows.
28+ isLayoutScheduled = true
29+ OneShotPreDrawListener.add(this) { runScheduledLayout() }
30+ post { runScheduledLayout() }
31+ }
32+ }
33+
34+ private fun runScheduledLayout() {
35+ if (!isLayoutScheduled) {
36+ return
37 }
38+ isLayoutScheduled = false
39+ measureAndLayout()
40 }
42 override fun forceLayout() {