fix: search bars

app/src/main/java/ani/dantotsu/others/AndroidBug5497Workaround.kt

@@ -0,0 +1,53 @@
+package ani.dantotsu.others
+
+import android.app.Activity
+import android.graphics.Rect
+import android.view.View
+import android.widget.FrameLayout
+
+class AndroidBug5497Workaround private constructor(activity: Activity, private val callback: (Boolean) -> Unit) {
+    private val mChildOfContent: View
+    private var usableHeightPrevious = 0
+    private val frameLayoutParams: FrameLayout.LayoutParams
+
+    init {
+        val content = activity.findViewById(android.R.id.content) as FrameLayout
+        mChildOfContent = content.getChildAt(0)
+        mChildOfContent.viewTreeObserver.addOnGlobalLayoutListener { possiblyResizeChildOfContent() }
+        frameLayoutParams = mChildOfContent.layoutParams as FrameLayout.LayoutParams
+    }
+
+    private fun possiblyResizeChildOfContent() {
+        val usableHeightNow = computeUsableHeight()
+        if (usableHeightNow != usableHeightPrevious) {
+            val usableHeightSansKeyboard = mChildOfContent.rootView.height
+            val heightDifference = usableHeightSansKeyboard - usableHeightNow
+            if (heightDifference > usableHeightSansKeyboard / 4) {
+                // keyboard probably just became visible
+                callback.invoke(true)
+                frameLayoutParams.height = usableHeightSansKeyboard - heightDifference
+            } else {
+                // keyboard probably just became hidden
+                callback.invoke(false)
+                frameLayoutParams.height = usableHeightSansKeyboard
+            }
+            mChildOfContent.requestLayout()
+            usableHeightPrevious = usableHeightNow
+        }
+    }
+
+    private fun computeUsableHeight(): Int {
+        val r = Rect()
+        mChildOfContent.getWindowVisibleDisplayFrame(r)
+        return r.bottom
+    }
+
+    companion object {
+        // For more information, see https://issuetracker.google.com/issues/36911528
+        // To use this class, simply invoke assistActivity() on an Activity that already has its content view set.
+        fun assistActivity(activity: Activity, callback: (Boolean) -> Unit) {
+            AndroidBug5497Workaround(activity, callback)
+        }
+    }
+}
+