Restrict QS container to avoid nav bar insets

Test: manual with gesture and 2 button nav
Fixes: 18426948

Change-Id: I0ee4add38d97212f3957aa9003cf10f4e3936251

packages/SystemUI/src/com/android/systemui/qs/QSContainerImpl.java

@@ -24,6 +24,7 @@ import android.graphics.Point;
 import android.util.AttributeSet;
 import android.util.Pair;
 import android.view.View;
+import android.view.WindowInsets;
 import android.widget.FrameLayout;
 
 import androidx.dynamicanimation.animation.FloatPropertyCompat;
@@ -70,6 +71,7 @@ public class QSContainerImpl extends FrameLayout {
     private boolean mBackgroundVisible;
     private int mContentPadding = -1;
     private boolean mAnimateBottomOnNextLayout;
+    private int mNavBarInset = 0;
 
     public QSContainerImpl(Context context, AttributeSet attrs) {
         super(context, attrs);
@@ -136,6 +138,12 @@ public class QSContainerImpl extends FrameLayout {
         updateBackgroundVisibility();
     }
 
+    @Override
+    public WindowInsets onApplyWindowInsets(WindowInsets insets) {
+        mNavBarInset = insets.getInsets(WindowInsets.Type.navigationBars()).bottom;
+        return super.onApplyWindowInsets(insets);
+    }
+
     @Override
     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
         // QSPanel will show as many rows as it can (up to TileLayout.MAX_ROWS) such that the
@@ -146,7 +154,7 @@ public class QSContainerImpl extends FrameLayout {
         // subtract its height. We do not care if the collapsed notifications fit in the screen.
         int maxQs = getDisplayHeight() - layoutParams.topMargin - layoutParams.bottomMargin
                 - getPaddingBottom();
-
+        maxQs -= mNavBarInset;
         int padding = mPaddingLeft + mPaddingRight + layoutParams.leftMargin
                 + layoutParams.rightMargin;
         final int qsPanelWidthSpec = getChildMeasureSpec(widthMeasureSpec, padding,