content: /*
   * Copyright (C) 2015 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 com.androidkun.xtablayout;
  
  import android.content.Context;
  import android.content.res.TypedArray;
  import android.support.design.R;
  
  class ThemeUtils {
  
      private static final int[] APPCOMPAT_CHECK_ATTRS = { R.attr.colorPrimary };
  
      static void checkAppCompatTheme(Context context) {
          TypedArray a = context.obtainStyledAttributes(APPCOMPAT_CHECK_ATTRS);
          final boolean failed = !a.hasValue(0);
          if (a != null) {
              a.recycle();
          }
          if (failed) {
              throw new IllegalArgumentException("You need to use a Theme.AppCompat theme "
                      + "(or descendant) with the design library.");
          }
      }
  }
  