作者：root

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

/**
 * Socket通讯工具类
 */
public class SocketUtil {

    // 线程池
    private static final ExecutorService ThreadPool = Executors.newCachedThreadPool();

    /**
     * 发送Socket消息
     *
     * @param targetIP   目标IP
     * @param targetPort 目标端口
     * @param msg        消息
     * @param callback   回调
     */
    public static void sendSocketMsg(final String targetIP, final int targetPort, final byte[] msg, final SocketUtilCallback callback) {
        ThreadPool.execute(new Runnable() {
            @Override
            public void run() {
                try {
                    // 建立Socket连接
                    Socket socket = new Socket(targetIP, targetPort);
                    socket.setSoTimeout(1000 * 10);
                    // 写消息
                    OutputStream out = socket.getOutputStream();
                    out.write(msg);
                    out.flush();
                    // 读取消息返回
                    byte[] readBuffer = new byte[1024];
                    InputStream in = socket.getInputStream();
                    int size = in.read(readBuffer);
                    byte[] readBytes = null;
                    if (size != -1) {
                        readBytes = new byte[size];
                        System.arraycopy(readBuffer, 0, readBytes, 0, size);
                    }
                    // 关闭流和Socket连接
                    in.close();
                    out.close();
                    socket.close();
                    // 执行发送成功回调
                    if (callback != null && readBytes != null) {
                        callback.onSuccess(readBytes);
                    }
                } catch (IOException e) {
                    // 执行发送失败回调
                    if (callback != null) {
                        callback.onError(e);
                    }
                }
            }
        });
    }

    /**
     * 回调
     */
    public interface SocketUtilCallback {
        void onSuccess(byte[] result);

        void onError(Exception e);
    }
}

https://blog.csdn.net/gdutxiaoxu/article/details/82389133

结果拦截器

Interceptor responseInterceptor = new Interceptor() {
    @Override
    public Response intercept(Chain chain) throws IOException {
        Response response = chain.proceed(chain.request());
        if (response.body() != null) {
            String json = response.body().string().replace("\"data\":null", "\"data\":{}");
            ResponseBody body = ResponseBody.create(response.body().contentType(), json);
            return response.newBuilder().body(body).build();
        }
        return response;
    }
};

判断异常类型

@Override
public void accept(Throwable throwable) throws Exception {
    if (throwable instanceof HttpException) {
        String json = ((HttpException) throwable).response().errorBody().string();
    }
}

1.定义AlertDialog透明样式

<style name="TransparentDialog" parent="Theme.AppCompat.Dialog">
    <item name="android:windowBackground">@android:color/transparent</item>
</style>

2.创建AlertDialog

View view = LayoutInflater.from(context).inflate(R.layout.dialog_sure, null, false);
AlertDialog sureDialog = new AlertDialog.Builder(context, R.style.TransparentDialog).setView(view).create();

---

参考链接：

Android AlertDialog背景透明

【图像】数据格式介绍(yuv420sp、yuv420sp、yv12,nv12等)

android I420转NV21 ， NV21转I420

节选自：Android NDK开发，使用ndk-build编译

---

手动编译.so文件

从步骤八开始的第二种方式，不指定AndroidStudio编译工具（Cmake或者ndk-build），直接手动生成.so库

a, cmd 或者Android studio的Terminal 中进入jni的上一级目录

b, 输入ndk-build命令，在jni同级的目录中生成了一个libs文件夹，里面生成了各个cup架构对应的.so文件，

https://www.52pojie.cn/forum-4-1.html

http://ju.outofmemory.cn/entry/345374

---

Nitrogen OS Oreo

TWRP Recovery

https://developers.google.com/android/images

重新挂载system分区

adb root
adb remount

解压缩

gzip -d FileName

bin目录文件权限755

lib目录文件权限644

更改前文件

/system/bin/app_process32
/system/bin/dex2oat
/system/bin/oatdump
/system/bin/patchoat

/system/lib/libart-compiler.so
/system/lib/libart-disassembler.so
/system/lib/libart.so
/system/lib/libsigchain.so

更改后文件

/system/bin/app_process32.original
/system/bin/dex2oat.orig.gz
/system/bin/oatdump.orig.gz
/system/bin/patchoat.orig.gz

/system/lib/libart-compiler.so.orig.gz
/system/lib/libart-disassembler.so.orig.gz
/system/lib/libart.so.orig.gz
/system/lib/libsigchain.so.orig.gz