Example usage for android.content ContentResolver query

Introduction

In this page you can find the example usage for android.content ContentResolver query.

Prototype

public final @Nullable Cursor query(@RequiresPermission.Read @NonNull Uri uri, @Nullable String[] projection,
        @Nullable String selection, @Nullable String[] selectionArgs, @Nullable String sortOrder,
        @Nullable CancellationSignal cancellationSignal) 

Source Link

Document

Query the given URI, returning a Cursor over the result set with optional support for cancellation.

Usage

From source file:com.whiuk.philip.opensmime.PathConverter.java

private static FileInformation handleContentScheme(Context context, Uri uri) {
    try {/*w  w  w  . j a va 2s. com*/
        ContentResolver contentResolver = context.getContentResolver();

        // all fields for one document
        Cursor cursor = contentResolver.query(uri, null, null, null, null, null);
        if (cursor != null && cursor.moveToFirst()) {

            // Note it's called "Display Name".  This is
            // provider-specific, and might not necessarily be the file name.
            String displayName = cursor.getString(cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME));
            String mimeType = cursor
                    .getString(cursor.getColumnIndex(DocumentsContract.Document.COLUMN_MIME_TYPE));
            InputStream stream = contentResolver.openInputStream(uri);
            File tmpFile = copyToTempFile(context, stream);
            return new FileInformation(tmpFile, displayName, mimeType);
        }

    } catch (IOException e) {
        Log.e(OpenSMIME.LOG_TAG, "error in PathConverter.handleContentScheme", e);
    }

    return null;
}

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From source file:de.fau.cs.mad.smile.android.encryption.PathConverter.java

private static FileInformation handleContentScheme(Context context, Uri uri) {
    try {//  w ww  .jav  a2  s.c o  m
        ContentResolver contentResolver = context.getContentResolver();

        // all fields for one document
        Cursor cursor = contentResolver.query(uri, null, null, null, null, null);
        if (cursor != null && cursor.moveToFirst()) {

            // Note it's called "Display Name".  This is
            // provider-specific, and might not necessarily be the file name.
            String displayName = cursor.getString(cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME));
            String mimeType = cursor
                    .getString(cursor.getColumnIndex(DocumentsContract.Document.COLUMN_MIME_TYPE));
            InputStream stream = contentResolver.openInputStream(uri);
            File tmpFile = copyToTempFile(context, stream);
            return new FileInformation(tmpFile, displayName, mimeType);
        }

    } catch (IOException e) {
        Log.e(SMileCrypto.LOG_TAG, "error in PathConverter.handleContentScheme", e);
    }

    return null;
}

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From source file:com.github.chenxiaolong.dualbootpatcher.FileUtils.java

public static UriMetadata[] queryUriMetadata(ContentResolver cr, Uri... uris) {
    ThreadUtils.enforceExecutionOnNonMainThread();

    UriMetadata[] metadatas = new UriMetadata[uris.length];
    for (int i = 0; i < metadatas.length; i++) {
        UriMetadata metadata = new UriMetadata();
        metadatas[i] = metadata;/*  ww  w  .  j a v a  2s  .co m*/
        metadata.uri = uris[i];
        metadata.mimeType = cr.getType(metadata.uri);

        if (SAF_SCHEME.equals(metadata.uri.getScheme())) {
            Cursor cursor = cr.query(metadata.uri, null, null, null, null, null);
            try {
                if (cursor != null && cursor.moveToFirst()) {
                    int nameIndex = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME);
                    int sizeIndex = cursor.getColumnIndex(OpenableColumns.SIZE);

                    metadata.displayName = cursor.getString(nameIndex);
                    if (cursor.isNull(sizeIndex)) {
                        metadata.size = -1;
                    } else {
                        metadata.size = cursor.getLong(sizeIndex);
                    }
                }
            } finally {
                IOUtils.closeQuietly(cursor);
            }
        } else if (FILE_SCHEME.equals(metadata.uri.getScheme())) {
            metadata.displayName = metadata.uri.getLastPathSegment();
            metadata.size = new File(metadata.uri.getPath()).length();
        } else {
            throw new IllegalArgumentException("Cannot handle URI: " + metadata.uri);
        }
    }

    return metadatas;
}

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From source file:com.google.android.apps.muzei.SourceSubscriberService.java

@Override
protected void onHandleIntent(Intent intent) {
    if (intent == null || intent.getAction() == null) {
        return;/*from  ww w.  j  a va  2s .c  o  m*/
    }

    String action = intent.getAction();
    if (!ACTION_PUBLISH_STATE.equals(action)) {
        return;
    }
    // Handle API call from source
    String token = intent.getStringExtra(EXTRA_TOKEN);
    ComponentName selectedSource = SourceManager.getSelectedSource(this);
    if (selectedSource == null || !TextUtils.equals(token, selectedSource.flattenToShortString())) {
        Log.w(TAG, "Dropping update from non-selected source, token=" + token + " does not match token for "
                + selectedSource);
        return;
    }

    SourceState state = null;
    if (intent.hasExtra(EXTRA_STATE)) {
        Bundle bundle = intent.getBundleExtra(EXTRA_STATE);
        if (bundle != null) {
            state = SourceState.fromBundle(bundle);
        }
    }

    if (state == null) {
        // If there is no state, there is nothing to change
        return;
    }

    ContentValues values = new ContentValues();
    values.put(MuzeiContract.Sources.COLUMN_NAME_COMPONENT_NAME, selectedSource.flattenToShortString());
    values.put(MuzeiContract.Sources.COLUMN_NAME_IS_SELECTED, true);
    values.put(MuzeiContract.Sources.COLUMN_NAME_DESCRIPTION, state.getDescription());
    values.put(MuzeiContract.Sources.COLUMN_NAME_WANTS_NETWORK_AVAILABLE, state.getWantsNetworkAvailable());
    JSONArray commandsSerialized = new JSONArray();
    int numSourceActions = state.getNumUserCommands();
    boolean supportsNextArtwork = false;
    for (int i = 0; i < numSourceActions; i++) {
        UserCommand command = state.getUserCommandAt(i);
        if (command.getId() == MuzeiArtSource.BUILTIN_COMMAND_ID_NEXT_ARTWORK) {
            supportsNextArtwork = true;
        } else {
            commandsSerialized.put(command.serialize());
        }
    }
    values.put(MuzeiContract.Sources.COLUMN_NAME_SUPPORTS_NEXT_ARTWORK_COMMAND, supportsNextArtwork);
    values.put(MuzeiContract.Sources.COLUMN_NAME_COMMANDS, commandsSerialized.toString());
    ContentResolver contentResolver = getContentResolver();
    Cursor existingSource = contentResolver.query(MuzeiContract.Sources.CONTENT_URI,
            new String[] { BaseColumns._ID }, MuzeiContract.Sources.COLUMN_NAME_COMPONENT_NAME + "=?",
            new String[] { selectedSource.flattenToShortString() }, null, null);
    if (existingSource != null && existingSource.moveToFirst()) {
        Uri sourceUri = ContentUris.withAppendedId(MuzeiContract.Sources.CONTENT_URI,
                existingSource.getLong(0));
        contentResolver.update(sourceUri, values, null, null);
    } else {
        contentResolver.insert(MuzeiContract.Sources.CONTENT_URI, values);
    }
    if (existingSource != null) {
        existingSource.close();
    }

    Artwork artwork = state.getCurrentArtwork();
    if (artwork != null) {
        artwork.setComponentName(selectedSource);
        contentResolver.insert(MuzeiContract.Artwork.CONTENT_URI, artwork.toContentValues());

        // Download the artwork contained from the newly published SourceState
        startService(TaskQueueService.getDownloadCurrentArtworkIntent(this));
    }
}

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