| /* |
| * Copyright (C) 2014 The Android Open Source Project |
| * |
| * 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 android.support.v4.widget; |
| |
| import android.content.Context; |
| import android.content.res.TypedArray; |
| import android.graphics.drawable.Drawable; |
| import android.view.Gravity; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.WindowInsets; |
| |
| /** |
| * Provides functionality for DrawerLayout unique to API 21 |
| */ |
| class DrawerLayoutCompatApi21 { |
| |
| private static final int[] THEME_ATTRS = { |
| android.R.attr.colorPrimaryDark |
| }; |
| |
| public static void configureApplyInsets(View drawerLayout) { |
| if (drawerLayout instanceof DrawerLayoutImpl) { |
| drawerLayout.setOnApplyWindowInsetsListener(new InsetsListener()); |
| drawerLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
| | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN); |
| } |
| } |
| |
| public static void dispatchChildInsets(View child, Object insets, int gravity) { |
| WindowInsets wi = (WindowInsets) insets; |
| if (gravity == Gravity.LEFT) { |
| wi = wi.replaceSystemWindowInsets(wi.getSystemWindowInsetLeft(), |
| wi.getSystemWindowInsetTop(), 0, wi.getSystemWindowInsetBottom()); |
| } else if (gravity == Gravity.RIGHT) { |
| wi = wi.replaceSystemWindowInsets(0, wi.getSystemWindowInsetTop(), |
| wi.getSystemWindowInsetRight(), wi.getSystemWindowInsetBottom()); |
| } |
| child.dispatchApplyWindowInsets(wi); |
| } |
| |
| public static void applyMarginInsets(ViewGroup.MarginLayoutParams lp, Object insets, |
| int gravity) { |
| WindowInsets wi = (WindowInsets) insets; |
| if (gravity == Gravity.LEFT) { |
| wi = wi.replaceSystemWindowInsets(wi.getSystemWindowInsetLeft(), |
| wi.getSystemWindowInsetTop(), 0, wi.getSystemWindowInsetBottom()); |
| } else if (gravity == Gravity.RIGHT) { |
| wi = wi.replaceSystemWindowInsets(0, wi.getSystemWindowInsetTop(), |
| wi.getSystemWindowInsetRight(), wi.getSystemWindowInsetBottom()); |
| } |
| lp.leftMargin = wi.getSystemWindowInsetLeft(); |
| lp.topMargin = wi.getSystemWindowInsetTop(); |
| lp.rightMargin = wi.getSystemWindowInsetRight(); |
| lp.bottomMargin = wi.getSystemWindowInsetBottom(); |
| } |
| |
| public static int getTopInset(Object insets) { |
| return insets != null ? ((WindowInsets) insets).getSystemWindowInsetTop() : 0; |
| } |
| |
| public static Drawable getDefaultStatusBarBackground(Context context) { |
| final TypedArray a = context.obtainStyledAttributes(THEME_ATTRS); |
| try { |
| return a.getDrawable(0); |
| } finally { |
| a.recycle(); |
| } |
| } |
| |
| static class InsetsListener implements View.OnApplyWindowInsetsListener { |
| @Override |
| public WindowInsets onApplyWindowInsets(View v, WindowInsets insets) { |
| final DrawerLayoutImpl drawerLayout = (DrawerLayoutImpl) v; |
| drawerLayout.setChildInsets(insets, insets.getSystemWindowInsetTop() > 0); |
| return insets.consumeSystemWindowInsets(); |
| } |
| } |
| } |