使用Android Studio将多个图像上传到phpMyAdmin

Question

我完成了一次可以一次将一个图像上传到PHP的代码，但是我不知道如何一次一次上传多个图像。我知道我必须设置更多的imageView和按钮进行选择，但是我无法理解其中的一些代码。例如，如何为更多图像设置位图，光标，filePath或路径？请帮助我。

package com.example.u9526.newdevil;

import android.app.ProgressDialog;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;

import net.gotev.uploadservice.MultipartUploadRequest;
import net.gotev.uploadservice.UploadNotificationConfig;

import java.io.IOException;
import java.util.UUID;

public class test extends AppCompatActivity implements View.OnClickListener{


private ImageView image1;
private Button choose1, upload;
private ProgressDialog progressDialog;

private static final int STORAGE_PERMISSION_CODE = 2342;
private static final int PICK_IMAGE_REQUEST = 22;

private Uri filePath1;
private Bitmap bitmap1;


private static final String URL_UPLOAD = "http://10.0.2.2/UploadExample/upload2.php";


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

    requestStoragePermission();

    choose1 = (Button) findViewById(R.id.choose1);


    upload = (Button) findViewById(R.id.upload);

    image1 = (ImageView) findViewById(R.id.image1);


    choose1.setOnClickListener(this);
    upload.setOnClickListener(this);




}


private void requestStoragePermission() {
    if (ContextCompat.checkSelfPermission(this, android.Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED)
        return;

    ActivityCompat.requestPermissions(this, new String[]{android.Manifest.permission.READ_EXTERNAL_STORAGE}, STORAGE_PERMISSION_CODE);
}

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    if (requestCode == STORAGE_PERMISSION_CODE) {
        if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            Toast.makeText(this, "Permission granted", Toast.LENGTH_LONG).show();
        } else {
            Toast.makeText(this, "Permission not granted", Toast.LENGTH_LONG).show();
        }
    }

}

private void showFileChooser() {
    Intent intent = new Intent();
    intent.setType("image/*");
    intent.setAction(Intent.ACTION_GET_CONTENT);
    startActivityForResult(Intent.createChooser(intent, "Select Picture"), PICK_IMAGE_REQUEST);

}

@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == PICK_IMAGE_REQUEST && resultCode == RESULT_OK && data != null && data.getData() != null) {
        filePath1 = data.getData();


        try {
            bitmap1 = MediaStore.Images.Media.getBitmap(getContentResolver(), filePath1);
            image1.setImageBitmap(bitmap1);

        } catch (IOException e) {

        }
    }

}


private String getPath(Uri uri){
    Cursor cursor = getContentResolver().query(uri, null , null, null, null);
    cursor.moveToFirst();
    String document_id = cursor.getString(0);

    document_id = document_id.substring(document_id.lastIndexOf(":")+1);
    cursor.close();

    cursor = getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, null, MediaStore.Images.Media._ID + " = ? ",
            new String[] {document_id},null
    );

    cursor.moveToFirst();
    String path = cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media.DATA));
    cursor.close();
    return path;
}


private void UploadImage() {
    String path = getPath(filePath1);


    try {
        String uploadid = UUID.randomUUID().toString();

        new MultipartUploadRequest(this, uploadid, URL_UPLOAD)
                .addFileToUpload(path, "image")
                .setNotificationConfig(new UploadNotificationConfig())
                .setMaxRetries(2)
                .startUpload();


    } catch (Exception e) {

    }

}


@Override
public void onClick(View v) {

    if(v == upload){
        UploadImage();
    }


    if(v == choose1 ){
        showFileChooser();
    }


   }
}

这是我用于上传图片的PHP文件。

<?php 
header("Content-Type:text/html; charset=utf-8");

require_once 'dbDetails.php';

$upload_path = 'uploads/';

$server_ip = gethostbyname(gethostname());

$upload_url = 'http://'.$server_ip.'/UploadExample/'.$upload_path;

$response = array(); 

if($_SERVER['REQUEST_METHOD'] == 'POST'){
    if(isset($_POST['name']) and isset($_FILES['image']['name'])){
        $con = mysqli_connect(DB_HOST, DB_USERNAME, DB_PASSWORD, DB_NAME) or die('unable to connect to database ');
        $name = $_POST['name'];

        $fileinfo = pathinfo($_FILES['image']['name']);

        $extension = $fileinfo['extension'];

        $file_url = $upload_url . getFileName() . '.'.$extension; 

        $file_path = $upload_path. getFileName(). '.'.$extension; 

        try{

            move_uploaded_file($_FILES['image']['tmp_name'], $file_path);

            $sql = "INSERT INTO images (url, name) VALUES ('$file_url','$name')";
            if(mysqli_query($con,$sql)){
                $response['error'] = false; 
                $response['url'] = $file_url; 
                $response['name'] = $name; 
            }

        }catch(Exception $e){
            $response['error'] = false; 
            $response['message'] = $e->getMessage(); 
        }
        mysqli_close($con);

    }else{
        $response['error'] = true; 
        $response['message'] = 'please choose a file';
    }

    echo json_encode($response);
}

function getFileName(){
    $con = mysqli_connect(DB_HOST, DB_USERNAME, DB_PASSWORD, DB_NAME) or die('Unable to connect');
    $sql = "SELECT max(id) as id FROM images";
    $result = mysqli_fetch_array(mysqli_query($con,$sql));
    mysqli_close($con);
    if($result['id']==null){
        return 1; 
    }else{
        return ++$result['id'];
    }
}

请帮帮我！