android.provider.DocumentsContract#buildDocumentUriUsingTree ( )源码实例Demo

下面列出了android.provider.DocumentsContract#buildDocumentUriUsingTree ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。

源代码1 项目： FireFiles 文件： DocumentsContractApi21.java

public static Uri[] listFiles(Context context, Uri self) {
    final ContentResolver resolver = context.getContentResolver();
    final Uri childrenUri = DocumentsContract.buildChildDocumentsUriUsingTree(self,
            DocumentsContract.getDocumentId(self));
    final ArrayList<Uri> results = new ArrayList<Uri>();

    Cursor c = null;
    try {
        c = resolver.query(childrenUri, new String[] {
                DocumentsContract.Document.COLUMN_DOCUMENT_ID }, null, null, null);
        while (c.moveToNext()) {
            final String documentId = c.getString(0);
            final Uri documentUri = DocumentsContract.buildDocumentUriUsingTree(self,
                    documentId);
            results.add(documentUri);
        }
    } catch (Exception e) {
        Log.w(TAG, "Failed query: " + e);
    } finally {
        closeQuietly(c);
    }

    return results.toArray(new Uri[results.size()]);
}

源代码2 项目： FireFiles 文件： DocumentsContractApi21.java

public static Uri[] listFiles(Context context, Uri self) {
    final ContentResolver resolver = context.getContentResolver();
    final Uri childrenUri = DocumentsContract.buildChildDocumentsUriUsingTree(self,
            DocumentsContract.getDocumentId(self));
    final ArrayList<Uri> results = new ArrayList<Uri>();

    Cursor c = null;
    try {
        c = resolver.query(childrenUri, new String[] {
                DocumentsContract.Document.COLUMN_DOCUMENT_ID }, null, null, null);
        while (c.moveToNext()) {
            final String documentId = c.getString(0);
            final Uri documentUri = DocumentsContract.buildDocumentUriUsingTree(self,
                    documentId);
            results.add(documentUri);
        }
    } catch (Exception e) {
        Log.w(TAG, "Failed query: " + e);
    } finally {
        closeQuietly(c);
    }

    return results.toArray(new Uri[results.size()]);
}

源代码3 项目： FireFiles 文件： DocumentsContractApi21.java

public static Uri[] listFiles(Context context, Uri self) {
    final ContentResolver resolver = context.getContentResolver();
    final Uri childrenUri = DocumentsContract.buildChildDocumentsUriUsingTree(self,
            DocumentsContract.getDocumentId(self));
    final ArrayList<Uri> results = new ArrayList<Uri>();

    Cursor c = null;
    try {
        c = resolver.query(childrenUri, new String[] {
                DocumentsContract.Document.COLUMN_DOCUMENT_ID }, null, null, null);
        while (c.moveToNext()) {
            final String documentId = c.getString(0);
            final Uri documentUri = DocumentsContract.buildDocumentUriUsingTree(self,
                    documentId);
            results.add(documentUri);
        }
    } catch (Exception e) {
        Log.w(TAG, "Failed query: " + e);
    } finally {
        closeQuietly(c);
    }

    return results.toArray(new Uri[results.size()]);
}

源代码4 项目： microMathematics 文件： AdapterDocuments.java

@Override
public void setUri(Uri uri_)
{
    if (this.uri == null && isTreeUri(uri_))
    {
        try
        {
            ctx.getContentResolver().takePersistableUriPermission(uri_,
                    Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
        this.uri = DocumentsContract.buildDocumentUriUsingTree(uri_, DocumentsContract.getTreeDocumentId(uri_));
    }
    else
    {
        this.uri = uri_;
    }
}

源代码5 项目： UniFile 文件： DocumentsContractApi21.java

public static Uri prepareTreeUri(Uri treeUri) {
    String documentId;
    try {
        documentId = DocumentsContract.getDocumentId(treeUri);
        if (documentId == null) {
            throw new IllegalArgumentException();
        }
    } catch (Exception e) {
        // IllegalArgumentException will be raised
        // if DocumentsContract.getDocumentId() failed.
        // But it isn't mentioned the document,
        // catch all kinds of Exception for safety.
        documentId = DocumentsContract.getTreeDocumentId(treeUri);
    }
    return DocumentsContract.buildDocumentUriUsingTree(treeUri, documentId);
}

源代码6 项目： Dashchan 文件： IOUtils.java

@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private static Uri findChildDocument(ContentResolver contentResolver, Uri uri, String displayName) {
	String[] projection = {DocumentsContract.Document.COLUMN_DOCUMENT_ID,
			DocumentsContract.Document.COLUMN_DISPLAY_NAME};
	Uri childUri = DocumentsContract.buildChildDocumentsUriUsingTree(uri,
			DocumentsContract.getDocumentId(uri));
	Cursor cursor = contentResolver.query(childUri, projection, null, null, null);
	try {
		while (cursor.moveToNext()) {
			if (displayName.equals(cursor.getString(1))) {
				return DocumentsContract.buildDocumentUriUsingTree(uri, cursor.getString(0));
			}
		}
	} finally {
		cursor.close();
	}
	return null;
}

源代码7 项目： adt-leanback-support 文件： DocumentsContractApi21.java

public static Uri[] listFiles(Context context, Uri self) {
    final ContentResolver resolver = context.getContentResolver();
    final Uri childrenUri = DocumentsContract.buildChildDocumentsUriUsingTree(self,
            DocumentsContract.getDocumentId(self));
    final ArrayList<Uri> results = new ArrayList<Uri>();

    Cursor c = null;
    try {
        c = resolver.query(childrenUri, new String[] {
                DocumentsContract.Document.COLUMN_DOCUMENT_ID }, null, null, null);
        while (c.moveToNext()) {
            final String documentId = c.getString(0);
            final Uri documentUri = DocumentsContract.buildDocumentUriUsingTree(self,
                    documentId);
            results.add(documentUri);
        }
    } catch (Exception e) {
        Log.w(TAG, "Failed query: " + e);
    } finally {
        closeQuietly(c);
    }

    return results.toArray(new Uri[results.size()]);
}

源代码8 项目： SAI 文件： SafUtils.java

public static Uri buildChildDocumentUri(Uri directoryUri, String childDisplayName) {
    if (!isTreeUri(directoryUri))
        throw new IllegalArgumentException("directoryUri must be a tree uri");

    String rootPath = getRootForPath(directoryUri);
    String directoryPath = getPathWithoutRoot(directoryUri);

    String childPath = rootPath + ":" + directoryPath + "/" + FileUtils.buildValidFatFilename(childDisplayName);

    return DocumentsContract.buildDocumentUriUsingTree(directoryUri, childPath);
}

源代码9 项目： edslite 文件： DocumentTreeFS.java

public DocumentTreeFS(Context context, Uri rootUri)
{
    _context = context;
    _rootPath = new DocumentPath(
            DocumentsContract.buildDocumentUriUsingTree(
                    rootUri,
                    DocumentsContract.getTreeDocumentId(rootUri)
            )
    );
}

源代码10 项目： edslite 文件： DocumentTreeFS.java

@Override
public boolean nextResult(Cursor c)
{
    if (!c.isNull(1) && _childName.equals(c.getString(1)))
    {
        final String documentId = c.getString(0);
        _uri = DocumentsContract.buildDocumentUriUsingTree(_documentUri,
                documentId);
        return false;
    }
    return true;
}

源代码11 项目： android-ScopedDirectoryAccess 文件： ScopedDirectoryAccessFragment.java

private void updateDirectoryEntries(Uri uri) {
    mDirectoryEntries.clear();
    ContentResolver contentResolver = getActivity().getContentResolver();
    Uri docUri = DocumentsContract.buildDocumentUriUsingTree(uri,
            DocumentsContract.getTreeDocumentId(uri));
    Uri childrenUri = DocumentsContract.buildChildDocumentsUriUsingTree(uri,
            DocumentsContract.getTreeDocumentId(uri));

    try (Cursor docCursor = contentResolver
            .query(docUri, DIRECTORY_SELECTION, null, null, null)) {
        while (docCursor != null && docCursor.moveToNext()) {
            mCurrentDirectoryTextView.setText(docCursor.getString(docCursor.getColumnIndex(
                    DocumentsContract.Document.COLUMN_DISPLAY_NAME)));
        }
    }

    try (Cursor childCursor = contentResolver
            .query(childrenUri, DIRECTORY_SELECTION, null, null, null)) {
        while (childCursor != null && childCursor.moveToNext()) {
            DirectoryEntry entry = new DirectoryEntry();
            entry.fileName = childCursor.getString(childCursor.getColumnIndex(
                    DocumentsContract.Document.COLUMN_DISPLAY_NAME));
            entry.mimeType = childCursor.getString(childCursor.getColumnIndex(
                    DocumentsContract.Document.COLUMN_MIME_TYPE));
            mDirectoryEntries.add(entry);
        }

        if (mDirectoryEntries.isEmpty()) {
            mNothingInDirectoryTextView.setVisibility(View.VISIBLE);
        } else {
            mNothingInDirectoryTextView.setVisibility(View.GONE);
        }
        mAdapter.setDirectoryEntries(mDirectoryEntries);
        mAdapter.notifyDataSetChanged();
    }
}

源代码12 项目： syncthing-android 文件： FileUtils.java

@Nullable
@TargetApi(21)
public static String getAbsolutePathFromSAFUri(Context context, @Nullable final Uri safResultUri) {
    Uri treeUri = DocumentsContract.buildDocumentUriUsingTree(safResultUri,
        DocumentsContract.getTreeDocumentId(safResultUri));
    return getAbsolutePathFromTreeUri(context, treeUri);
}

源代码13 项目： android-DirectorySelection 文件： DirectorySelectionFragment.java

/**
 * Creates a directory under the directory represented as the uri in the argument.
 *
 * @param uri The uri of the directory under which a new directory is created.
 * @param directoryName The directory name of a new directory.
 */
//VisibileForTesting
void createDirectory(Uri uri, String directoryName) {
    ContentResolver contentResolver = getActivity().getContentResolver();
    Uri docUri = DocumentsContract.buildDocumentUriUsingTree(uri,
            DocumentsContract.getTreeDocumentId(uri));
    Uri directoryUri = null;
    try {
        directoryUri = DocumentsContract
                .createDocument(contentResolver, docUri, Document.MIME_TYPE_DIR, directoryName);
    } catch (IOException e) {
        Log.w(TAG, "IOException", e);
    }
    if (directoryUri != null) {
        Log.i(TAG, String.format(
                "Created directory : %s, Document Uri : %s, Created directory Uri : %s",
                directoryName, docUri, directoryUri));
        Toast.makeText(getActivity(), String.format("Created a directory [%s]",
                directoryName), Toast.LENGTH_SHORT).show();
    } else {
        Log.w(TAG, String.format("Failed to create a directory : %s, Uri %s", directoryName,
                docUri));
        Toast.makeText(getActivity(), String.format("Failed to created a directory [%s] : ",
                directoryName), Toast.LENGTH_SHORT).show();
    }

}

源代码14 项目： edslite 文件： DocumentTreeFS.java

@Override
public com.sovworks.eds.fs.Directory.Contents list() throws IOException
{
    final Uri uri = _path.getDocumentUri();
    final Uri childrenUri = DocumentsContract.buildChildDocumentsUriUsingTree(uri,
            DocumentsContract.getDocumentId(uri));
    final ContentResolver resolver = _context.getContentResolver();
    final Cursor cursor = resolver.query(
            childrenUri,
            new String[]{DocumentsContract.Document.COLUMN_DOCUMENT_ID},
            DocumentsContract.Document.COLUMN_DOCUMENT_ID + "!=?",
            new String[] { ".android_secure" },
            null
    );
    return new com.sovworks.eds.fs.Directory.Contents()
    {
        @Override
        public void close() throws IOException
        {
            if (cursor != null)
                cursor.close();
        }

        @Override
        public Iterator<Path> iterator()
        {
            return new Iterator<Path>()
            {
                @Override
                public void remove()
                {

                }

                @Override
                public Path next()
                {
                    if (cursor == null)
                        throw new NoSuchElementException();
                    final String documentId = cursor.getString(0);
                    final Uri documentUri = DocumentsContract.buildDocumentUriUsingTree(uri,
                            documentId);
                    _hasNext = cursor.moveToNext();
                    Path newPath = new DocumentPath(documentUri);
                    synchronized (_parentsCache)
                    {
                        _parentsCache.put(newPath, _path);
                    }
                    return newPath;
                }

                @Override
                public boolean hasNext()
                {
                    return _hasNext;
                }

                private boolean _hasNext = cursor != null && cursor.moveToFirst();
            };
        }
    };

}

源代码15 项目： FireFiles 文件： DocumentsContractApi21.java

public static Uri prepareTreeUri(Uri treeUri) {
    return DocumentsContract.buildDocumentUriUsingTree(treeUri,
            DocumentsContract.getTreeDocumentId(treeUri));
}

源代码16 项目： FireFiles 文件： DocumentsContractApi21.java

public static Uri prepareTreeUri(Uri treeUri) {
    return DocumentsContract.buildDocumentUriUsingTree(treeUri,
            DocumentsContract.getTreeDocumentId(treeUri));
}

源代码17 项目： FireFiles 文件： DocumentsContractApi21.java

public static Uri prepareTreeUri(Uri treeUri) {
    return DocumentsContract.buildDocumentUriUsingTree(treeUri,
            DocumentsContract.getTreeDocumentId(treeUri));
}

源代码18 项目： microMathematics 文件： AdapterDocuments.java

public final static ArrayList<SAFItem> getChildren(Context ctx, Uri u)
{
    Cursor c = null;
    try
    {
        ContentResolver cr = ctx.getContentResolver();
        String document_id = DocumentsContract.getDocumentId(u);
        Uri children_uri = DocumentsContract.buildChildDocumentsUriUsingTree(u, document_id);
        c = cr.query(children_uri, projection, null, null, null);
        if (c != null)
        {
            ArrayList<SAFItem> tmp_list = new ArrayList<>();
            if (c.getCount() == 0)
            {
                return tmp_list;
            }
            int ici = c.getColumnIndex(Document.COLUMN_DOCUMENT_ID);
            int nci = c.getColumnIndex(Document.COLUMN_DISPLAY_NAME);
            int sci = c.getColumnIndex(Document.COLUMN_SIZE);
            int mci = c.getColumnIndex(Document.COLUMN_MIME_TYPE);
            int dci = c.getColumnIndex(Document.COLUMN_LAST_MODIFIED);
            c.moveToFirst();
            do
            {
                SAFItem item = new SAFItem();
                String id = c.getString(ici);
                item.origin = DocumentsContract.buildDocumentUriUsingTree(u, id);
                item.attr = c.getString(mci);
                item.dir = Document.MIME_TYPE_DIR.equals(item.attr);
                item.name = c.getString(nci);
                item.size = c.getLong(sci);
                item.date = new Date(c.getLong(dci));
                if (item.dir)
                {
                    item.size = -1;
                    item.attr = Integer.toString(getDirItemsNumber(ctx, (Uri) item.origin)) + " "
                            + ctx.getString(R.string.dialog_list_items);
                }
                tmp_list.add(item);
            }
            while (c.moveToNext());
            return tmp_list;
        }
    }
    catch (Exception e)
    {
        e.printStackTrace();
    }
    finally
    {
        if (c != null)
        {
            c.close();
        }
    }
    return null;
}

源代码19 项目： adt-leanback-support 文件： DocumentsContractApi21.java

public static Uri prepareTreeUri(Uri treeUri) {
    return DocumentsContract.buildDocumentUriUsingTree(treeUri,
            DocumentsContract.getTreeDocumentId(treeUri));
}

源代码20 项目： android-DirectorySelection 文件： DirectorySelectionFragment.java

/**
 * Updates the current directory of the uri passed as an argument and its children directories.
 * And updates the {@link #mRecyclerView} depending on the contents of the children.
 *
 * @param uri The uri of the current directory.
 */
//VisibileForTesting
void updateDirectoryEntries(Uri uri) {
    ContentResolver contentResolver = getActivity().getContentResolver();
    Uri docUri = DocumentsContract.buildDocumentUriUsingTree(uri,
            DocumentsContract.getTreeDocumentId(uri));
    Uri childrenUri = DocumentsContract.buildChildDocumentsUriUsingTree(uri,
            DocumentsContract.getTreeDocumentId(uri));

    Cursor docCursor = contentResolver.query(docUri, new String[]{
            Document.COLUMN_DISPLAY_NAME, Document.COLUMN_MIME_TYPE}, null, null, null);
    try {
        while (docCursor.moveToNext()) {
            Log.d(TAG, "found doc =" + docCursor.getString(0) + ", mime=" + docCursor
                    .getString(1));
            mCurrentDirectoryUri = uri;
            mCurrentDirectoryTextView.setText(docCursor.getString(0));
            mCreateDirectoryButton.setEnabled(true);
        }
    } finally {
        closeQuietly(docCursor);
    }

    Cursor childCursor = contentResolver.query(childrenUri, new String[]{
            Document.COLUMN_DISPLAY_NAME, Document.COLUMN_MIME_TYPE}, null, null, null);
    try {
        List<DirectoryEntry> directoryEntries = new ArrayList<>();
        while (childCursor.moveToNext()) {
            Log.d(TAG, "found child=" + childCursor.getString(0) + ", mime=" + childCursor
                    .getString(1));
            DirectoryEntry entry = new DirectoryEntry();
            entry.fileName = childCursor.getString(0);
            entry.mimeType = childCursor.getString(1);
            directoryEntries.add(entry);
        }
        mAdapter.setDirectoryEntries(directoryEntries);
        mAdapter.notifyDataSetChanged();
    } finally {
        closeQuietly(childCursor);
    }
}

方法所在类

android.provider.DocumentsContract