Android的opengl怎么导入

要在Android项目中使用OpenGL，需要在项目中添加OpenGL库文件和相关的JNI代码。下面是一些基本步骤：

1. 在 Android Studio 中打开你的项目，然后在项目结构中右键点击“app”文件夹并选择“New -> Folder -> JNI Folder”。

2. 选择“JNI Folder”的类型为“JNI Folder”，然后点击“Finish”。

3. 在“jni”文件夹下创建一个名为“native-lib.cpp”的文件，并将以下代码复制到该文件中：

   #include <jni.h>
   #include <string>

   extern "C" JNIEXPORT jstring JNICALL
   Java_com_example_myapplication_MainActivity_stringFromJNI(
           JNIEnv* env,
           jobject /* this */) {
       std::string hello = "Hello from C++";
       return env->NewStringUTF(hello.c_str());
   }

4. 在“app”文件夹下打开“build.gradle”文件，并将以下代码添加到“dependencies”中：

   implementation 'com.android.support:appcompat-v7:28.0.0'
   implementation 'com.android.support.constraint:constraint-layout:1.1.3'
   implementation 'com.android.support:design:28.0.0'
   implementation 'com.android.support:support-v4:28.0.0'
   implementation 'com.android.support:multidex:1.0.3'
   implementation 'com.google.android.gms:play-services-maps:16.0.0'
   implementation 'com.google.android.gms:play-services-location:16.0.0'
   implementation 'com.google.android.gms:play-services-ads:17.1.2'
   implementation 'com.google.android.gms:play-services-auth:16.0.1'
   implementation 'com.google.android.gms:play-services-drive:16.0.0'
   implementation 'com.google.android.gms:play-services-games:16.0.0'
   implementation 'com.google.android.gms:play-services-wearable:16.0.1'
   implementation 'com.google.android.gms:play-services-plus:16.0.0'
   implementation 'com.google.firebase:firebase-core:16.0.4'
   implementation 'com.google.firebase:firebase-database:16.0.4'
   implementation 'com.google.firebase:firebase-storage:16.0.4'
   implementation 'com.google.firebase:firebase-auth:16.0.4'
   implementation 'com.google.firebase:firebase-messaging:17.3.3'
   implementation 'com.google.firebase:firebase-crash:16.0.3'
   implementation 'com.google.firebase:firebase-config:16.0.0'
   implementation 'com.google.firebase:firebase-perf:16.0.0'
   implementation 'com.google.firebase:firebase-functions:16.1.0'
   implementation 'com.google.firebase:firebase-appindexing:16.0.2'
   implementation 'com.google.firebase:firebase-invites:16.0.4'
   implementation 'com.google.firebase:firebase-ads:15.0.0'
   implementation 'com.google.firebase:firebase-firestore:17.1.0'
   implementation 'com.google.firebase:firebase-ml-vision:17.0.0'
   implementation 'com.google.firebase:firebase-ml-vision-image-label-model:15.0.0'
   implementation 'com.google.firebase:firebase-ml-vision-face-model:15.0.0'
   implementation 'com.google.firebase:firebase-ml-model-interpreter:16.0.0'
   implementation 'com.google.firebase:firebase-ml-natural-language:16.0.0'
   implementation 'com.google.firebase:firebase-ml-vision-barcode-model:16.0.0'
   implementation 'com.google.firebase:firebase-storage-ktx:16.0.4'
   implementation 'com.google.firebase:firebase-database-ktx:16.0.4'

   implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.3.11'
   implementation 'com.github.bumptech.glide:glide:4.9.0'
   kapt 'com.github.bumptech.glide:compiler:4.9.0'
   implementation 'com.squareup.retrofit2:retrofit:2.5.0'
   implementation 'com.squareup.retrofit2:converter-gson:2.5.0'
   implementation 'com.squareup.okhttp3:logging-interceptor:3.12.1'
   implementation 'com.squareup.okhttp3:okhttp:3.12.1'
   implementation 'com.google.code.gson:gson:2.8.5'
   implementation 'com.jakewharton.retrofit:retrofit2-kotlin-coroutines-adapter:0.9.2'
   implementation 'com.facebook.android:facebook-login:4.38.1'
   implementation 'com.facebook.android:facebook-share:4.38.1'
   implementation 'io.branch.sdk.android:library:3.0.0'
   implementation 'com.google.android:flexbox:1.0.0'
   implementation 'com.google.code.findbugs:jsr305:3.0.2'
   implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.1.0'
   implementation 'com.google.dagger:dagger:2.21'
   kapt 'com.google.dagger:dagger-compiler:2.21'
   implementation 'com.google.dagger:dagger-android:2.21'
   implementation 'com.google.dagger:dagger-android-support:2.21'
   kapt 'com.google.dagger:dagger-android-processor:2.21'
   implementation 'com.google.android.material:material:1.0.0'
   implementation 'com.squareup.picasso:picasso:2.71828'

5. 在“app”文件夹下打开“build.gradle”文件，并将以下代码添加到“defaultConfig”中：

   ndk {
       abiFilters 'armeabi-v7a','arm64-v8a','x86','x86_64'
   }

6. 将以下代码添加到“build.gradle”文件的末尾：

   externalNativeBuild {
       cmake {
           path "CMakeLists.txt"
       }
   }

7. 在“app”文件夹下创建一个名为“CMakeLists.txt”的文件，并将以下代码复制到该文件中：

   cmake_minimum_required(VERSION 3.4.1)

   add_library( # Sets the name of the library.
                native-lib

                # Sets the library as a shared library.
                SHARED

                # Provides a relative path to your source file(s).
                src/main/cpp/native-lib.cpp )

   # Searches for a specified prebuilt library and stores the path as a
   # variable. Because system libraries are included in the search path by
   # default, you only need to specify the name of the public NDK library
   # you want to add. CMake verifies that the library exists before
   # completing its build.

   find_library( # Sets the name of the path variable.
                 log-lib

                 # Specifies the name of the NDK library that
                 # you want CMake to locate.
                 log )

   # Specifies libraries CMake should link to your target library. You
   # can link multiple libraries, such as libraries you define in the
   # same build script, prebuilt third-party libraries, or system libraries.

   target_link_libraries( # Specifies the target library.
                          native-lib

                          # Links the target library to the log library
                          # included in the NDK.
                          ${log-lib} )

8. 在“app”文件夹下创建一个名为“Android.mk”的文件，并将以下代码复制到该文件中：

   LOCAL_PATH := $(call my-dir)

   include $(CLEAR_VARS)

   # Here we give our module name and source file(s)
   LOCAL_MODULE    := native-lib
   LOCAL_SRC_FILES := native-lib.cpp

   include $(BUILD_SHARED_LIBRARY)

9. 在“app”文件夹下创建一个名为“Application.mk”的文件，并将以下代码复制到该文件中：

   APP_ABI := armeabi-v7a arm64-v8a x86 x86_64
   APP_PLATFORM := android-19

10. 在“app”文件夹下创建一个名为“jniLibs”的文件夹，然后将你的OpenGL库文件复制到该文件夹中。你可以在 Android NDK 的“sources\platforms\android-xx\arch-xxx\usr\lib”目录下找到这些库文件。

完成上述步骤后，你就可以在 Android 应用程序中使用 OpenGL 了。