package com.loopeer.codereader.ui.view; 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; 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(); } } }