Add insert helper for SlidingDrawerLayout

app/src/main/java/com/hippo/widget/slidingdrawerlayout/SlidingDrawerLayout.java

@@ -99,6 +99,16 @@ public class SlidingDrawerLayout extends ViewGroup implements ValueAnimator.Anim
             Build.VERSION.SDK_INT >= 21;
     private static final int DRAWER_ELEVATION = 10; //dp
 
+    private static final SlidingDrawerLayoutInsetsHelper INSETS_HELPER;
+
+    static {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            INSETS_HELPER = new SlidingDrawerLayoutInsetsHelperL();
+        } else {
+            INSETS_HELPER = null;
+        }
+    }
+
     private float mDrawerElevation;
 
     private int mMinDrawerMargin;
@@ -221,6 +231,10 @@ public class SlidingDrawerLayout extends ViewGroup implements ValueAnimator.Anim
         mNavigationBarPaint.setColor(Color.BLACK);
 
         setWillNotDraw(false);
+
+        if (INSETS_HELPER != null) {
+            INSETS_HELPER.setupForWindowInsets(this);
+        }
     }
 
     public void setDrawerListener(DrawerListener listener) {

app/src/main/java/com/hippo/widget/slidingdrawerlayout/SlidingDrawerLayoutInsetsHelper.java

@@ -0,0 +1,23 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.widget.slidingdrawerlayout;
+
+import android.view.View;
+
+public interface SlidingDrawerLayoutInsetsHelper {
+    void setupForWindowInsets(View view);
+}

app/src/main/java/com/hippo/widget/slidingdrawerlayout/SlidingDrawerLayoutInsetsHelperL.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.widget.slidingdrawerlayout;
+
+import android.support.v4.view.ViewCompat;
+import android.view.View;
+
+public class SlidingDrawerLayoutInsetsHelperL implements SlidingDrawerLayoutInsetsHelper {
+
+    @Override
+    public void setupForWindowInsets(View view) {
+        if (ViewCompat.getFitsSystemWindows(view)) {
+            // Now set the sys ui flags to enable us to lay out in the window insets
+            view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE
+                    | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
+        }
+    }
+}