Update

app/src/main/java/com/hippo/ehviewer/widget/ContentLayout.java

@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2015 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
+ * 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.ehviewer.widget;
+
+import android.content.Context;
+import android.graphics.Rect;
+import android.util.AttributeSet;
+
+import com.hippo.scene.StageLayout;
+
+import org.jetbrains.annotations.NotNull;
+
+public class ContentLayout extends StageLayout {
+
+    private OnGetPaddingListener mOnGetPaddingListener;
+
+    private int mFitPaddingLeft = -1;
+    private int mFitPaddingTop = -1;
+    private int mFitPaddingRight = -1;
+    private int mFitPaddingBottom = -1;
+
+    public ContentLayout(Context context) {
+        super(context);
+    }
+
+    public ContentLayout(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public ContentLayout(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+    }
+
+    public ContentLayout(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
+        super(context, attrs, defStyleAttr, defStyleRes);
+    }
+
+    @SuppressWarnings("deprecation")
+    @Override
+    protected boolean fitSystemWindows(@NotNull Rect insets) {
+        mFitPaddingLeft = insets.left;
+        mFitPaddingTop = 0;
+        mFitPaddingRight = insets.right;
+        mFitPaddingBottom = insets.bottom;
+        if (mOnGetPaddingListener != null) {
+            mOnGetPaddingListener.onGetPadding(mFitPaddingLeft, mFitPaddingTop,
+                    mFitPaddingRight, mFitPaddingBottom);
+        }
+
+        insets.set(0, insets.top, 0, 0);
+
+        return super.fitSystemWindows(insets);
+    }
+
+    public void setOnGetPaddingListener(OnGetPaddingListener listener) {
+        mOnGetPaddingListener = listener;
+    }
+
+    public int getFitPaddingLeft() {
+        return mFitPaddingLeft;
+    }
+
+    public int getFitPaddingTop() {
+        return mFitPaddingTop;
+    }
+
+    public int getFitPaddingRight() {
+        return mFitPaddingRight;
+    }
+
+    public int getFitPaddingBottom() {
+        return mFitPaddingBottom;
+    }
+
+    public interface OnGetPaddingListener {
+        public void onGetPadding(int l, int t, int r, int b);
+    }
+}