android - 如何在 Koush ion 中构建 URL

Question

我正在构建一个应用程序来将图像上传到我公司的服务器 我正在使用 koush-ion 进行上传， 现在我的问题是我必须根据通过编辑文本框在另一个 Activity (LoginActivity)中输入的信息动态更改上传的 URL 我不知道该怎么做 所以我想要发生的是客户端输入他们的电子邮件、密码和 clientID(4 位数字)(在 LoginActivity 中)，应用程序使用它来构建上传的 url 像这个(在 CameraActivity 中) https://www.blahpractice.co.za/files-upload-ruben.asp?MyForm=Yes&ClientID=1234&Username=man@blahpractice.co.za&Pwd=BlahBlah123@

我从 koush github 得到这个，我不确定这是否是我正在寻找的以及如何在 koush-ion 中实现来自另一个 Activity 的数据

Post application/x-www-form-urlencoded 并读取一个String

 Ion.with(getContext())
   .load("https://koush.clockworkmod.com/test/echo")
   .setBodyParameter("goop", "noop")
   .setBodyParameter("foo", "bar")
   .asString()
   .setCallback(...)

相机 Activity

  public class CameraActivity extends AppCompatActivity implements 
   View.OnClickListener{
    private final int PICK_IMAGE = 12345;
    private final int REQUEST_CAMERA = 6352;
    private static final int REQUEST_CAMERA_ACCESS_PERMISSION =5674;
    private Bitmap bitmap;

    private ImageView imageView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_camera);
        imageView =findViewById(R.id.imageView);
        Button fromCamera=findViewById(R.id.fromCamera);
        Button fromGallery=findViewById(R.id.fromGallery);
        Button upload=findViewById(R.id.upload);
        upload.setOnClickListener(this);
        fromCamera.setOnClickListener(this);
        fromGallery.setOnClickListener(this);


        if (!getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_ANY)) {
            fromCamera.setVisibility(View.GONE);
        }

    }

    @Override
    public void onClick(View view) {

        switch (view.getId()) {
            case R.id.fromCamera:
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M
                        && ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA)
                        != PackageManager.PERMISSION_GRANTED) {
                    requestPermissions(new String[]{Manifest.permission.CAMERA},
                            REQUEST_CAMERA_ACCESS_PERMISSION);
                }else {
                    getImageFromCamera();
                }
                break;
            case R.id.fromGallery:
                getImageFromGallery();
                break;
            case R.id.upload:
                if (bitmap != null)
                    uploadImageToServer();
                break;
        }

    }


    private void uploadImageToServer() {

我要在这里调用url

  File imageFile = persistImage(bitmap, "SP_Upload");
        Ion.with(this)
                .load("https://www.Blahpractice.co.za/files-upload-ruben.asp?MyForm=Yes")
                .setMultipartFile("SP-LOG", "image/jpeg", imageFile)
                .asJsonObject()
                .setCallback(new FutureCallback<JsonObject>() {
                    @Override
                    public void onCompleted(Exception e, JsonObject result) {

                    }
                });
    }

    private File persistImage(Bitmap bitmap, String name) {
        File filesDir = getApplicationContext().getFilesDir();
        File imageFile = new File(filesDir, name + ".jpg");

        OutputStream os;
        try {
            os = new FileOutputStream(imageFile);
            bitmap.compress(Bitmap.CompressFormat.JPEG, 100, os);
            os.flush();
            os.close();
        } catch (Exception e) {
            Log.e(getClass().getSimpleName(), "Error writing bitmap", e);
        }

        return imageFile;
    }


    private void getImageFromCamera() {
        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        startActivityForResult(intent, REQUEST_CAMERA);
    }


    private void getImageFromGallery() {
        Intent intent = new Intent();
        intent.setType("image/*");
        intent.setAction(Intent.ACTION_GET_CONTENT);
        if (intent.resolveActivity(getPackageManager()) != null) {
            startActivityForResult(Intent.createChooser(intent, "Select Picture"), PICK_IMAGE);
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == PICK_IMAGE) {
            if (resultCode == Activity.RESULT_OK) {
                try {
                    InputStream inputStream = getContentResolver().openInputStream(data.getData());
                    bitmap = BitmapFactory.decodeStream(inputStream);
                    imageView.setImageBitmap(bitmap);
                } catch (FileNotFoundException e) {
                    e.printStackTrace();
                }

            }
        } else if (requestCode == REQUEST_CAMERA) {
            if (resultCode == Activity.RESULT_OK) {
                Bundle extras = data.getExtras();
                bitmap = (Bitmap) extras.get("data");
                imageView.setImageBitmap(bitmap);
            }
        }
    }


    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        if (requestCode == REQUEST_CAMERA_ACCESS_PERMISSION) {
            if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                getImageFromCamera();
            }
        } else {
            super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        }
    }
}

登录 Activity

     public class LoginActivity extends AppCompatActivity {

    private EditText email, password, id;

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

        email=findViewById(R.id.emailtext);
        password=findViewById(R.id.pwdtext);
        id=findViewById(R.id.clientid);
        Button loginBtn=findViewById(R.id.button);

        loginBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String emailAddress=email.getText().toString().trim();
                String userPassword=password.getText().toString().trim();
                String clientId=id.getText().toString().trim();
                Intent intent=new Intent(LoginActivity.this, CameraActivity.class);
                intent.putExtra("clientId", clientId);
                intent.putExtra("email", emailAddress);
                intent.putExtra("password", userPassword);
                startActivity(intent);
            }
        });
    }
}

Answer 1

您可以将 url 存储在共享首选项中，并在每次执行上传任务时检索它并将其设置在 .load() 方法中。

此外，您需要将图像发送到您的服务器是一个多部分的帖子。我没有使用过 Ion，但我在 OkHttp 等其他库中使用过 multipart，我复制了 Ion 文档中出现的方法:

String dynamicUrl = PreferenceManager.getDefaultSharedPreferences(context).getString(CURRENT_SELECTED_URL, null);
File myImage = new File(myImagePath);

if(dynamicUrl != null) {
    Ion.with(getContext())
    .load(dynamicUrl)
    .uploadProgressBar(uploadProgressBar)
    .setMultipartParameter("goop", "noop")
    .setMultipartFile("myImageName", "image/*", myImage)
    .asJsonObject()
    .setCallback(...)
}