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我需要将文件上传到 Google 驱动器并查看/下载我在我的 android 应用程序中上传的文件。如何以最简单的方式执行此操作..？欢迎提出任何建议、示例代码和说明。提前谢谢你。

PS：无需在设备中安装 GOOGLE 驱动器..

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4 回答 4

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最简单的方法是遵循Drive 的 Android 快速入门指南

它解释了如何构建一个在 10 分钟内将照片上传到云端硬盘的 Android 应用程序。

于 2012-11-27T01:04:03.190 回答
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Google 已弃用适用于 Android 的 Google Drive API。所以我们必须使用 REST API。

使用这个答案并检查它是否有用。

https://stackoverflow.com/a/59063198/9538854

于 2019-11-27T07:29:47.133 回答
0

请参阅此，完成分步指南

仅用于上传的代码（我仍在研究如何浏览文件）：

package com.example.drivequickstart;

import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

import android.accounts.AccountManager;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.widget.Toast;

import com.google.api.client.extensions.android.http.AndroidHttp;
import com.google.api.client.googleapis.extensions.android.gms.auth.GoogleAccountCredential;
import com.google.api.client.googleapis.extensions.android.gms.auth.UserRecoverableAuthIOException;
import com.google.api.client.http.FileContent;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.drive.Drive;
import com.google.api.services.drive.DriveScopes;
import com.google.api.services.drive.model.File;

public class MainActivity extends Activity {
    static final int REQUEST_ACCOUNT_PICKER = 1;
    static final int REQUEST_AUTHORIZATION = 2;
    static final int CAPTURE_IMAGE = 3;

    private static Uri fileUri;
    private static Drive service;
    private GoogleAccountCredential credential;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        credential = GoogleAccountCredential.usingOAuth2(this, DriveScopes.DRIVE);
        startActivityForResult(credential.newChooseAccountIntent(), REQUEST_ACCOUNT_PICKER);
    }

    @Override
    protected void onActivityResult(final int requestCode, final int resultCode, final Intent data) {
        switch (requestCode) {
        case REQUEST_ACCOUNT_PICKER:
            if (resultCode == RESULT_OK && data != null && data.getExtras() != null) {
                String accountName = data.getStringExtra(AccountManager.KEY_ACCOUNT_NAME);
                if (accountName != null) {
                    credential.setSelectedAccountName(accountName);
                    service = getDriveService(credential);
                    startCameraIntent();
                }
            }
            break;
        case REQUEST_AUTHORIZATION:
            if (resultCode == Activity.RESULT_OK) {
                saveFileToDrive();
            } else {
                startActivityForResult(credential.newChooseAccountIntent(), REQUEST_ACCOUNT_PICKER);
            }
            break;
        case CAPTURE_IMAGE:
            if (resultCode == Activity.RESULT_OK) {
                saveFileToDrive();
            }
        }
    }

    private void startCameraIntent() {
        String mediaStorageDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).getPath();
        String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.US).format(new Date());
        fileUri = Uri.fromFile(new java.io.File(mediaStorageDir + java.io.File.separator + "IMG_" + timeStamp + ".jpg"));

        Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
        startActivityForResult(cameraIntent, CAPTURE_IMAGE);
    }

    private void saveFileToDrive() {
        Thread t = new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    // File's binary content
                    java.io.File fileContent = new java.io.File(fileUri.getPath());
                    FileContent mediaContent = new FileContent("image/jpeg", fileContent);

                    // File's metadata.
                    File body = new File();
                    body.setTitle(fileContent.getName());
                    body.setMimeType("image/jpeg");

                    File file = service.files().insert(body, mediaContent).execute();
                    if (file != null) {
                        showToast("Photo uploaded: " + file.getTitle());
                        startCameraIntent();
                    }
                } catch (UserRecoverableAuthIOException e) {
                    startActivityForResult(e.getIntent(), REQUEST_AUTHORIZATION);
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        });
        t.start();
    }

    private Drive getDriveService(GoogleAccountCredential credential) {
        return new Drive.Builder(AndroidHttp.newCompatibleTransport(), new GsonFactory(), credential).build();
    }

    public void showToast(final String toast) {
        runOnUiThread(new Runnable() {
            @Override
            public void run() {
                Toast.makeText(getApplicationContext(), toast, Toast.LENGTH_SHORT).show();
            }
        });
    }
}
于 2013-02-07T07:05:53.460 回答
0

可以通过 Google Drive API 访问 Google 驱动器，示例演示是由 android 人员在以下路径中创建的，这非常有用，并提供了所有功能的示例。请点击以下链接 Git hub demo for Google Drive API

于 2017-04-10T21:48:57.577 回答