Handle window insets with a new way

For example, switching pages in home should only have scale and alpha animations, but a "translate y" animation shows. This is because Data Binding is triggered later (like "in the next frame"), causing the animation runs before view attribute changes.

This commit introduces WindowInsetsHelper class and use it to handle all window insets. With the help of LayoutInflaterFactory from the previous commit, we can control insets behavior by adding our attributes to the XML and anything is done by WindowInsetsHelper class.

As changes are highly coupling, this commit also contains new ItemDecoration for lists, replacing the random combination of padding and empty drawable. And "fixEdgeEffect" extension for RecyclerView, making edge effects respect padding.

app/src/main/java/com/topjohnwu/magisk/ui/hide/HideFragment.kt

@@ -12,6 +12,9 @@ import androidx.recyclerview.widget.RecyclerView
 import com.topjohnwu.magisk.R
 import com.topjohnwu.magisk.arch.BaseUIFragment
 import com.topjohnwu.magisk.databinding.FragmentHideMd2Binding
+import com.topjohnwu.magisk.ktx.addSimpleItemDecoration
+import com.topjohnwu.magisk.ktx.addVerticalPadding
+import com.topjohnwu.magisk.ktx.fixEdgeEffect
 import com.topjohnwu.magisk.ktx.hideKeyboard
 import com.topjohnwu.magisk.utils.MotionRevealHelper
 import org.koin.androidx.viewmodel.ext.android.viewModel
@@ -49,6 +52,21 @@ class HideFragment : BaseUIFragment<HideViewModel, FragmentHideMd2Binding>() {
             }
         })
 
+        val resource = requireContext().resources
+        val l_50 = resource.getDimensionPixelSize(R.dimen.l_50)
+        val l1 = resource.getDimensionPixelSize(R.dimen.l1)
+        binding.hideContent.addVerticalPadding(
+            l_50,
+            l1 + resource.getDimensionPixelSize(R.dimen.internal_action_bar_size)
+        )
+        binding.hideContent.addSimpleItemDecoration(
+            left = l1,
+            top = l_50,
+            right = l1,
+            bottom = l_50,
+        )
+        binding.hideContent.fixEdgeEffect()
+
         val lama = binding.hideContent.layoutManager ?: return
         lama.isAutoMeasureEnabled = false
     }