6

基本的功能已经完成，但还存在许多不足的地方，主页面简介且难看。上传图片后返回的结果布局也十分丑陋。考虑到调用图片过于麻烦，还是直接拍照上传比较好。做出一些改进，这里是调用图片进行识别的代码。。
要导入这几个包，有一个是百度智能云的sdk包，可以再平台上找。
import android.Manifest;
import android.content.Intent;
import android.graphics.Bitmap;
import android.net.Uri;
import android.provider.MediaStore;

import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;

import com.baidu.aip.face.AipFace;
import com.baidu.aip.util.Base64Util;
import org.json.JSONObject;

import java.util.HashMap;
import java.io.ByteArrayOutputStream;

public class MainActivity extends AppCompatActivity {

private static final int PICK_IMAGE = 1;
private ImageView imageView;
private Button buttonSelect, buttonDetect;
private Bitmap bitmap;

private String APP_ID = "67129805";
private String API_KEY = "YnFw5LSDvq76bzSdjWuGWlXL";
private String SECRET_KEY = "lOa0jDMgcQT0baNlzjIR7GMwCFoFEUUy";
private AipFace client;
private static final int YOUR_PERMISSIONS_REQUEST_READ_STORAGE = 1;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    imageView = findViewById(R.id.imageView);
    buttonSelect = findViewById(R.id.buttonSelect);
    buttonDetect = findViewById(R.id.buttonDetect);

    client = new AipFace(APP_ID, API_KEY, SECRET_KEY); // 初始化AipFace对象

    buttonSelect.setOnClickListener(v -> {
        ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 1);
        Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
        startActivityForResult(intent, PICK_IMAGE);
    });

    buttonDetect.setOnClickListener(v -> {
        if (bitmap != null) {
            try {
                HashMap<String, O