| /* |
| * Copyright 2022 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 androidx.camera.previewview.internal.utils; |
| |
| import android.os.Looper; |
| |
| import androidx.annotation.RequiresApi; |
| |
| /** |
| * Helpers for {@link Thread}s. |
| */ |
| @RequiresApi(21) // TODO(b/200306659): Remove and replace with annotation on package-info.java |
| public final class Threads { |
| |
| // Prevent instantiation. |
| private Threads() { |
| } |
| |
| /** Returns true if we're currently running in the application's main thread. */ |
| public static boolean isMainThread() { |
| return Looper.getMainLooper().getThread() == Thread.currentThread(); |
| } |
| } |
| |