Use controlled rawValue prop to check if we need to reset height on Android

src/components/Composer/index.tsx

@@ -346,6 +346,7 @@ export function Composer({
           {...tapper.inputProps}
           {...sift.targetProps}
           ref={mergeRefs([ref, tapper.inputProps.ref, sift.targetProps.ref])}
+          rawValue={tapper.state.text}
           onBlur={e => {
             rest.onBlur?.(e)
             setActiveFacet(null)

src/components/forms/AutosizedTextarea.tsx

@@ -1,4 +1,4 @@
-import {useMemo, useRef, useState} from 'react'
+import {useEffect, useMemo, useRef, useState} from 'react'
 import {
   TextInput,
   type TextInputContentSizeChangeEvent,
@@ -16,6 +16,17 @@ export type AutosizedTextareaProps = Omit<TextInputProps, 'multiline'> & {
   minRows?: number
   maxRows?: number
   onUpdateHeight?: (height: number) => void
+  /**
+   * In some cases, like on native, we may not pass in an actual `value` prop.
+   * This prop allows Android to know if the field was cleared and thereby
+   * reset its height. This is a small hack required because we need to
+   * explicitly set the `{height: nativeHeight}` on Android.
+   *
+   * If you notice height calcuation issues after clearing the field on
+   * Android, check if this value is being populated and cleared properly in
+   * the parent component.
+   */
+  rawValue?: string
 }
 
 export function AutosizedTextarea({
@@ -24,6 +35,7 @@ export function AutosizedTextarea({
   minRows = 1,
   maxRows,
   onUpdateHeight,
+  rawValue,
 
   onChangeText: onChangeTextOuter,
   onContentSizeChange: onContentSizeChangeOuter,
@@ -124,6 +136,22 @@ export function AutosizedTextarea({
     onContentSizeChangeOuter?.(e)
   }
 
+  /*
+   * Manual height clearing required for Android because we're forced to set
+   * `{height: nativeHeight}` on Android, and even though `onContentSizeChange`
+   * fires, the height matches the existing height and we aren't able to reset.
+   */
+  const prevRawValue = useRef(rawValue || '')
+  useEffect(() => {
+    if (!IS_ANDROID) return // everything else is fine
+    if (rawValue === undefined) return // uncontrolled
+    if (prevRawValue.current?.length && rawValue === '') {
+      setNativeHeight(minInputHeight)
+      onUpdateHeight?.(minInputHeight)
+    }
+    prevRawValue.current = rawValue
+  }, [rawValue, minInputHeight])
+
   return (
     <TextInput
       multiline