app/src/main/java/me/zhanghai/android/douya/ui/DispatchInsetsDrawerLayout.java

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/*
 * Copyright (c) 2015 Zhang Hai <Dreaming.in.Code.ZH@Gmail.com>
 * All Rights Reserved.
 */

package me.zhanghai.android.douya.ui;

import android.content.Context;
import android.os.Build;
import android.support.v4.widget.DrawerLayout;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowInsets;

/**
 * Layouts in fullscreen, and {@code android:fitsSystemWindows="true"} will be ignored.
 *
 * @see DispatchInsetsHelper
 */
public class DispatchInsetsDrawerLayout extends DrawerLayout {

    private DispatchInsetsHelper mInsetsHelper = new DispatchInsetsHelper(
            new DispatchInsetsHelper.Delegate() {

                @Override
                public int getGravityFromLayoutParams(ViewGroup.LayoutParams layoutParams) {
                    return ((LayoutParams) layoutParams).gravity;
                }

                @Override
                public ViewGroup getOwner() {
                    return DispatchInsetsDrawerLayout.this;
                }

                @Override
                public void superAddView(View child, int index, ViewGroup.LayoutParams params) {
                    DispatchInsetsDrawerLayout.super.addView(child, index, params);
                }

                @Override
                public boolean superAddViewInLayout(View child, int index,
                                                    ViewGroup.LayoutParams params,
                                                    boolean preventRequestLayout) {
                    return DispatchInsetsDrawerLayout.super.addViewInLayout(child, index, params,
                            preventRequestLayout);
                }
            });

    public DispatchInsetsDrawerLayout(Context context) {
        super(context);

        init();
    }

    public DispatchInsetsDrawerLayout(Context context, AttributeSet attrs) {
        super(context, attrs);

        init();
    }