Han*_*man 10 android image file-manager google-drive-android-api
我想发送我的内部存储中存在的多个图像,当我选择该文件夹时,我想将该文件夹上传到谷歌驱动器.我已经尝试了这个谷歌驱动器api的Android https://developers.google.com/drive/android/create-file
,我使用下面的代码,但它显示了一些错误getGoogleApiClient
代码是
ResultCallback<DriveContentsResult> contentsCallback = new
ResultCallback<DriveContentsResult>() {
@Override
public void onResult(DriveContentsResult result) {
if (!result.getStatus().isSuccess()) {
// Handle error
return;
}
MetadataChangeSet metadataChangeSet = new MetadataChangeSet.Builder()
.setMimeType("text/html").build();
IntentSender intentSender = Drive.DriveApi
.newCreateFileActivityBuilder()
.setInitialMetadata(metadataChangeSet)
.setInitialDriveContents(result.getDriveContents())
.build(getGoogleApiClient());
try {
startIntentSenderForResult(intentSender, 1, null, 0, 0, 0);
} catch (SendIntentException e) {
// Handle the exception
}
}
}
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是否有任何方法将图像发送到驱动器或Gmail?
我无法为您提供满足您需要的确切代码,但您可以尝试修改我用于测试 Google Drive Android API (GDAA) 的代码。它创建文件夹并将文件上传到 Google Drive。选择 REST 或 GDAA 风格由您决定,每种风格都有其特定的优点。
但这只涵盖了你问题的一半。在 Android 设备上选择和枚举文件应该在其他地方进行介绍。
更新:(根据下面弗兰克的评论)
我上面提到的例子将为您提供从头开始的完整解决方案,但让我们解决您的问题中我可以解读的要点:
障碍“某些错误”是一种返回在代码序列之前初始化的GoogleApiClient对象的方法。看起来像:
GoogleApiClient mGAC = new GoogleApiClient.Builder(appContext)
.addApi(Drive.API).addScope(Drive.SCOPE_FILE)
.addConnectionCallbacks(callerContext)
.addOnConnectionFailedListener(callerContext)
.build();
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如果您已清除此内容,我们假设您的文件夹由 java.io.File 对象表示。这是代码:
1/ 枚举本地文件夹中的文件
2/ 设置每个文件的名称、内容和 MIME 类型(为简单起见,此处使用jpeg )。
3/将每个文件上传到Google Drive的根文件夹
(create()方法必须在UI线程外运行)
// enumerating files in a folder, uploading to Google Drive
java.io.File folder = ...;
for (java.io.File file : folder.listFiles()) {
create("root", file.getName(), "image/jpeg", file2Bytes(file))
}
/******************************************************
* create file/folder in GOODrive
* @param prnId parent's ID, (null or "root") for root
* @param titl file name
* @param mime file mime type
* @param buf file contents (optional, if null, create folder)
* @return file id / null on fail
*/
static String create(String prnId, String titl, String mime, byte[] buf) {
DriveId dId = null;
if (mGAC != null && mGAC.isConnected() && titl != null) try {
DriveFolder pFldr = (prnId == null || prnId.equalsIgnoreCase("root")) ?
Drive.DriveApi.getRootFolder(mGAC):
Drive.DriveApi.getFolder(mGAC, DriveId.decodeFromString(prnId));
if (pFldr == null) return null; //----------------->>>
MetadataChangeSet meta;
if (buf != null) { // create file
DriveContentsResult r1 = Drive.DriveApi.newDriveContents(mGAC).await();
if (r1 == null || !r1.getStatus().isSuccess()) return null; //-------->>>
meta = new MetadataChangeSet.Builder().setTitle(titl).setMimeType(mime).build();
DriveFileResult r2 = pFldr.createFile(mGAC, meta, r1.getDriveContents()).await();
DriveFile dFil = r2 != null && r2.getStatus().isSuccess() ? r2.getDriveFile() : null;
if (dFil == null) return null; //---------->>>
r1 = dFil.open(mGAC, DriveFile.MODE_WRITE_ONLY, null).await();
if ((r1 != null) && (r1.getStatus().isSuccess())) try {
Status stts = bytes2Cont(r1.getDriveContents(), buf).commit(mGAC, meta).await();
if ((stts != null) && stts.isSuccess()) {
MetadataResult r3 = dFil.getMetadata(mGAC).await();
if (r3 != null && r3.getStatus().isSuccess()) {
dId = r3.getMetadata().getDriveId();
}
}
} catch (Exception e) { /* error handling*/ }
} else {
meta = new MetadataChangeSet.Builder().setTitle(titl).setMimeType("application/vnd.google-apps.folder").build();
DriveFolderResult r1 = pFldr.createFolder(mGAC, meta).await();
DriveFolder dFld = (r1 != null) && r1.getStatus().isSuccess() ? r1.getDriveFolder() : null;
if (dFld != null) {
MetadataResult r2 = dFld.getMetadata(mGAC).await();
if ((r2 != null) && r2.getStatus().isSuccess()) {
dId = r2.getMetadata().getDriveId();
}
}
}
} catch (Exception e) { /* error handling*/ }
return dId == null ? null : dId.encodeToString();
}
//-----------------------------
static byte[] file2Bytes(File file) {
if (file != null) try {
return is2Bytes(new FileInputStream(file));
} catch (Exception e) {}
return null;
}
//----------------------------
static byte[] is2Bytes(InputStream is) {
byte[] buf = null;
BufferedInputStream bufIS = null;
if (is != null) try {
ByteArrayOutputStream byteBuffer = new ByteArrayOutputStream();
bufIS = new BufferedInputStream(is);
buf = new byte[2048];
int cnt;
while ((cnt = bufIS.read(buf)) >= 0) {
byteBuffer.write(buf, 0, cnt);
}
buf = byteBuffer.size() > 0 ? byteBuffer.toByteArray() : null;
} catch (Exception e) {}
finally {
try {
if (bufIS != null) bufIS.close();
} catch (Exception e) {}
}
return buf;
}
//--------------------------
private static DriveContents bytes2Cont(DriveContents driveContents, byte[] buf) {
OutputStream os = driveContents.getOutputStream();
try { os.write(buf);
} catch (IOException e) {/*error handling*/}
finally {
try { os.close();
} catch (Exception e) {/*error handling*/}
}
return driveContents;
}
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不用说,这里的代码直接取自这里的 GDAA 包装器(在开头提到过),所以如果您需要解析任何引用,您必须在那里查找代码。
祝你好运
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