Example usage for android.webkit WebView post

Introduction

In this page you can find the example usage for android.webkit WebView post.

Prototype

public boolean post(Runnable action) 

Source Link

Document

Causes the Runnable to be added to the message queue.

Usage

From source file:im.neon.adapters.VectorMediasViewerAdapter.java

/**
 * Download the high res image/* w ww  .  j  a  v a 2s. co  m*/
 * @param view the slider page view
 * @param position the item position
 */
private void downloadHighResPict(final View view, final int position) {
    final WebView webView = (WebView) view.findViewById(R.id.media_slider_image_webview);
    final PieFractionView pieFractionView = (PieFractionView) view.findViewById(R.id.media_slider_piechart);
    final SlidableMediaInfo imageInfo = mMediasMessagesList.get(position);
    final String viewportContent = "width=640";
    final String loadingUri = imageInfo.mMediaUrl;
    final String downloadId = mMediasCache.loadBitmap(mContext, mSession.getHomeserverConfig(), loadingUri,
            imageInfo.mRotationAngle, imageInfo.mOrientation, imageInfo.mMimeType,
            imageInfo.mEncryptedFileInfo);

    webView.getSettings().setDisplayZoomControls(false);

    if (null != downloadId) {
        pieFractionView.setVisibility(View.VISIBLE);
        pieFractionView.setFraction(mMediasCache.getProgressValueForDownloadId(downloadId));
        mMediasCache.addDownloadListener(downloadId, new MXMediaDownloadListener() {
            @Override
            public void onDownloadError(String downloadId, JsonElement jsonElement) {
                MatrixError error = JsonUtils.toMatrixError(jsonElement);

                if ((null != error) && error.isSupportedErrorCode()) {
                    Toast.makeText(VectorMediasViewerAdapter.this.mContext, error.getLocalizedMessage(),
                            Toast.LENGTH_LONG).show();
                }
            }

            @Override
            public void onDownloadProgress(String aDownloadId, DownloadStats stats) {
                if (aDownloadId.equals(downloadId)) {
                    pieFractionView.setFraction(stats.mProgress);
                }
            }

            @Override
            public void onDownloadComplete(String aDownloadId) {
                if (aDownloadId.equals(downloadId)) {
                    pieFractionView.setVisibility(View.GONE);
                    final File mediaFile = mMediasCache.mediaCacheFile(loadingUri, imageInfo.mMimeType);

                    if (null != mediaFile) {
                        mHighResMediaIndex.add(position);

                        Uri uri = Uri.fromFile(mediaFile);
                        final String newHighResUri = uri.toString();

                        webView.post(new Runnable() {
                            @Override
                            public void run() {
                                Uri mediaUri = Uri.parse(newHighResUri);
                                // refresh the UI
                                loadImage(webView, mediaUri, viewportContent,
                                        computeCss(newHighResUri, VectorMediasViewerAdapter.this.mMaxImageWidth,
                                                VectorMediasViewerAdapter.this.mMaxImageHeight,
                                                imageInfo.mRotationAngle));
                            }
                        });
                    }
                }
            }
        });
    }
}

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