| /* |
| * Copyright (C) 2016 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.content.res; |
| |
| import static android.os.Build.VERSION.SDK_INT; |
| |
| import android.content.res.Configuration; |
| import android.content.res.Resources; |
| import android.support.annotation.NonNull; |
| |
| /** |
| * Helper class which allows access to properties of {@link Configuration} in |
| * a backward compatible fashion. |
| */ |
| public final class ConfigurationHelper { |
| private ConfigurationHelper() { |
| } |
| |
| /** |
| * Returns the target screen density being rendered to. |
| * |
| * <p>Uses {@code Configuration.densityDpi} when available, otherwise an approximation |
| * is computed and returned.</p> |
| */ |
| public static int getDensityDpi(@NonNull Resources resources) { |
| if (SDK_INT >= 17) { |
| return resources.getConfiguration().densityDpi; |
| } else { |
| return resources.getDisplayMetrics().densityDpi; |
| } |
| } |
| } |