1 /* 2 * Copyright 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include <string> 20 #include <jni.h> 21 22 class AAsset; 23 24 namespace tuningfork { 25 26 namespace apk_utils { 27 28 // Get an asset from this APK's asset directory. 29 // Returns NULL if the asset could not be found. 30 // Asset_close must be called once the asset is no longer needed. 31 AAsset* GetAsset(JNIEnv* env, jobject activity, const char* name); 32 33 // Get the app's version code. Also fills packageNameStr, if not null, with 34 // the package name. 35 int GetVersionCode(JNIEnv *env, jobject context, std::string* packageNameStr = nullptr); 36 37 } // namespace apk_utils 38 39 namespace file_utils { 40 41 // Creates the directory if it does not exist. Returns true if the directory 42 // already existed or could be created. 43 bool CheckAndCreateDir(const std::string& path); 44 45 bool FileExists(const std::string& fname); 46 47 // Call NativeActivity.getCacheDir via JNI 48 std::string GetAppCacheDir(JNIEnv* env, jobject activity); 49 50 } // namespace file_utils 51 52 // Get a unique identifier using java.util.UUID 53 std::string UniqueId(JNIEnv* env); 54 55 } // namespace tuningfork 56
