Java Utility.isContentUri方法代碼示例

import com.facebook.internal.Utility; //導入方法依賴的package包/類
private void initialize()
        throws FileNotFoundException {
    ParcelFileDescriptor fileDescriptor = null;
    try {
        if (Utility.isFileUri(videoUri)) {
            fileDescriptor = ParcelFileDescriptor.open(
                    new File(videoUri.getPath()),
                    ParcelFileDescriptor.MODE_READ_ONLY);
            videoSize = fileDescriptor.getStatSize();
            videoStream = new ParcelFileDescriptor.AutoCloseInputStream(fileDescriptor);
        } else if (Utility.isContentUri(videoUri)) {
            videoSize = Utility.getContentSize(videoUri);
            videoStream = FacebookSdk
                    .getApplicationContext()
                    .getContentResolver()
                    .openInputStream(videoUri);
        } else {
            throw new FacebookException("Uri must be a content:// or file:// uri");
        }
    } catch (FileNotFoundException e) {
        Utility.closeQuietly(videoStream);

        throw e;
    }
}
 

import com.facebook.internal.Utility; //導入方法依賴的package包/類
private static void validateVideo(ShareVideo video, Validator validator) {
    if (video == null) {
        throw new FacebookException("Cannot share a null ShareVideo");
    }

    Uri localUri = video.getLocalUrl();
    if (localUri == null) {
        throw new FacebookException("ShareVideo does not have a LocalUrl specified");
    }

    if (!Utility.isContentUri(localUri) && !Utility.isFileUri(localUri)) {
        throw new FacebookException("ShareVideo must reference a video that is on the device");
    }
}
 

import com.facebook.internal.Utility; //導入方法依賴的package包/類
/**
 * Creates a new Request configured to upload an image to create a staging resource. Staging
 * resources allow you to post binary data such as images, in preparation for a post of an Open
 * Graph object or action which references the image. The URI returned when uploading a staging
 * resource may be passed as the image property for an Open Graph object or action.
 *
 * @param accessToken the access token to use, or null
 * @param imageUri    the file:// or content:// Uri pointing to the image to upload
 * @param callback    a callback that will be called when the request is completed to handle
 *                    success or error conditions
 * @return a Request that is ready to execute
 * @throws FileNotFoundException
 */
public static GraphRequest newUploadStagingResourceWithImageRequest(
        AccessToken accessToken,
        Uri imageUri,
        Callback callback
) throws FileNotFoundException {
    if (Utility.isFileUri(imageUri)) {
        return newUploadStagingResourceWithImageRequest(
                accessToken,
                new File(imageUri.getPath()),
                callback);
    } else if (!Utility.isContentUri(imageUri)) {
        throw new FacebookException("The image Uri must be either a file:// or content:// Uri");
    }

    GraphRequest.ParcelableResourceWithMimeType<Uri> resourceWithMimeType =
            new GraphRequest.ParcelableResourceWithMimeType<>(imageUri, "image/png");
    Bundle parameters = new Bundle(1);
    parameters.putParcelable(STAGING_PARAM, resourceWithMimeType);

    return new GraphRequest(
            accessToken,
            MY_STAGING_RESOURCES,
            parameters,
            HttpMethod.POST,
            callback);
}