我需要从手机中选择几种类型的文件，并且需要上传到Google驱动器。我可以为图像文件执行此操作，但不能为其他MIME类型（例如PDF或txt文件）执行此操作。
我可以选择它。但是在createFileIntentSender（）方法中，我只能传递位图。
我拥有的代码：
private void showFileChooser() {
// Intent intent = new Intent();
// intent.setType("image/*|application/pdf|audio/*");
// intent.setAction(Intent.ACTION_GET_CONTENT);
// startActivityForResult(Intent.createChooser(intent, "Select File"), PICK_IMAGE_REQUEST);
String[] mimeTypes =
{"image/*","application/pdf","application/msword","application/vnd.ms-powerpoint","application/vnd.ms-excel","text/plain"};
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
intent.setType(mimeTypes.length == 1 ? mimeTypes[0] : "*/*");
if (mimeTypes.length > 0) {
intent.putExtra(Intent.EXTRA_MIME_TYPES, mimeTypes);
}
} else {
String mimeTypesStr = "";
for (String mimeType : mimeTypes) {
mimeTypesStr += mimeType + "|";
}
intent.setType(mimeTypesStr.substring(0,mimeTypesStr.length() - 1));
}
startActivityForResult(Intent.createChooser(intent,"ChooseFile"), PICK_IMAGE_REQUEST);
}
//handling the image chooser activity result
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == PICK_IMAGE_REQUEST && resultCode == RESULT_OK && data != null && data.getData() != null) {
filePath = data.getData();
int random = new Random().nextInt(1000006) + 20;
// String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = "attach_" + random ;
filename = imageFileName;
Uri returnUri = data.getData();
String mimeType = getActivity().getContentResolver().getType(returnUri);
Log.d("Testing", "mime type ::: " +mimeType);
try {
bitmap = MediaStore.Images.Media.getBitmap(getActivity().getContentResolver(), filePath);
Log.d("Testing", "bitmap Excep::: " +bitmap);
saveFileToDrive(mimeType);
// imageViewuri.setImageBitmap(bitmap);
} catch (IOException e) {
e.printStackTrace();
}
}
if (requestCode == REQUEST_CODE_CREATOR && resultCode == RESULT_OK ) {
/// filePath = data.getData();
// try {
// Log.e("drive res",data.getDataString());
/*} catch (IOException e) {
e.printStackTrace();
}*/
driveId =
data.getParcelableExtra(OpenFileActivityOptions.EXTRA_RESPONSE_DRIVE_ID);
String s = driveId.encodeToString();
String s1 = s.substring(s.indexOf(":")+1);
s1.trim();
mStrDeviceID.add(s1);
mTvAttchment.setVisibility(View.VISIBLE);
mTvAttchment.setText(mTvAttchment.getText()+"\n"+filename);
Log.d("Testing", "File created with ID: " + driveId.encodeToString()+" "+filename);
//showMessage(getString(R.string.file_created, "File created with ID: " + driveId));
}
}
/** Create a new file and save it to Drive. */
private void saveFileToDrive(final String mime) {
// Start by creating a new contents, and setting a callback.
// Log.i(TAG, "Creating new contents.");
// final Bitmap image = mBitmapToSave;
Log.d("Testing", "last signed account:: "+GoogleSignIn.getLastSignedInAccount(getActivity().getApplicationContext()));
mDriveClient = Drive.getDriveClient(getActivity().getApplicationContext(), GoogleSignIn.getLastSignedInAccount(getActivity().getApplicationContext()));
// Build a drive resource client.
mDriveResourceClient =
Drive.getDriveResourceClient(getActivity().getApplicationContext(), GoogleSignIn.getLastSignedInAccount(getActivity().getApplicationContext()));
Log.d("Testing", "inside saveFileToDrive::: ");
mDriveResourceClient
.createContents()
.continueWithTask(
new Continuation<DriveContents, Task<Void>>() {
@Override
public Task<Void> then(@NonNull Task<DriveContents> task) throws Exception {
Log.d("Testing", "inside then method::: ");
return createFileIntentSender(task.getResult(), bitmap, mime);
}
})
.addOnFailureListener(
new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) {
// Log.w(TAG, "Failed to create new contents.", e);
}
});
}
private Task<Void> createFileIntentSender(DriveContents driveContents, Bitmap image, String mimetype) {
//Log.i(TAG, "New contents created.");
// Get an output stream for the contents.
Log.d("Testing", "inside createFileIntentSender::: ");
OutputStream outputStream = driveContents.getOutputStream();
// Write the bitmap data from it.
ByteArrayOutputStream bitmapStream = new ByteArrayOutputStream();
image.compress(Bitmap.CompressFormat.PNG, 100, bitmapStream);
Log.d("Testing", "inside createFileIntentSender 2222::: ");
try {
outputStream.write(bitmapStream.toByteArray());
} catch (IOException e) {
/// Log.w(TAG, "Unable to write file contents.", e);
Log.d("Testing", "inside createFileIntentSender 333::: "+e.getMessage());
}
// DriveId btd = new DriveId();
// Create the initial metadata - MIME type and title.
// Note that the user will be able to change the title later.
MetadataChangeSet metadataChangeSet =
new MetadataChangeSet.Builder()
.setMimeType(mimetype)
.setTitle(filename)
.build();
//filename = "sample"+mimetype;
// Set up options to configure and display the create file activity.
CreateFileActivityOptions createFileActivityOptions =
new CreateFileActivityOptions.Builder()
.setInitialMetadata(metadataChangeSet)
.setInitialDriveContents(driveContents)
.build();
return mDriveClient
.newCreateFileActivityIntentSender(createFileActivityOptions)
.continueWith(
new Continuation<IntentSender, Void>() {
@Override
public Void then(@NonNull Task<IntentSender> task) throws Exception {
Log.d("Testing", "inside then::: ");
startIntentSenderForResult(task.getResult(), REQUEST_CODE_CREATOR, null, 0, 0, 0, Bundle.EMPTY);
return null;
}
});
}