fix: Recompose QSB on state changes (#7242)

lawnchair/src/app/lawnchair/allapps/AllAppsSearchInput.kt

@@ -14,6 +14,7 @@ import android.text.style.ForegroundColorSpan
 import android.util.AttributeSet
 import android.view.KeyEvent
 import android.view.MotionEvent
+import android.view.View
 import android.view.ViewTreeObserver
 import android.view.ViewTreeObserver.OnGlobalFocusChangeListener
 import android.view.animation.DecelerateInterpolator
@@ -247,6 +248,18 @@ class AllAppsSearchInput(context: Context, attrs: AttributeSet?) :
             }
         }
 
+        // Stop Compose QSB from disappearing
+        // https://stackoverflow.com/questions/72781705/jetpack-compose-view-not-drawing-when-coming-back-to-fragment/77496737#77496737
+        qsbShell.addOnAttachStateChangeListener(object : OnAttachStateChangeListener {
+            override fun onViewAttachedToWindow(v: View) {
+                requestLayout()
+                qsbShell.disposeComposition()
+            }
+            override fun onViewDetachedFromWindow(v: View) {
+                qsbShell.disposeComposition()
+            }
+        })
+
         val currentPaddingLeft = initialPaddingLeft
         val currentPaddingRight = initialPaddingRight
 

lawnchair/src/app/lawnchair/qsb/LawnQsbLayout.kt

@@ -6,6 +6,7 @@ import android.content.Intent
 import android.graphics.Rect
 import android.graphics.RectF
 import android.util.AttributeSet
+import android.view.View
 import android.widget.FrameLayout
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
@@ -137,6 +138,18 @@ class LawnQsbLayout(context: Context, attrs: AttributeSet?) : FrameLayout(contex
             }
         }
 
+        // Stop Compose QSB from disappearing
+        // https://stackoverflow.com/questions/72781705/jetpack-compose-view-not-drawing-when-coming-back-to-fragment/77496737#77496737
+        composeView.addOnAttachStateChangeListener(object : OnAttachStateChangeListener {
+            override fun onViewAttachedToWindow(v: View) {
+                requestLayout()
+                composeView.disposeComposition()
+            }
+            override fun onViewDetachedFromWindow(v: View) {
+                composeView.disposeComposition()
+            }
+        })
+
         addView(
             composeView,
             LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT),