am 01170ffe: [PB13] Actually update the progress bar

package com.android.inputmethod.dictionarypack;

import android.app.DownloadManager;

import android.app.DownloadManager.Query;

import android.content.ContentValues;

import android.content.Context;

import android.database.Cursor;

import android.database.sqlite.SQLiteDatabase;

import android.os.Handler;

import android.util.AttributeSet;

import android.util.Log;

import android.view.View;

                mReporterThread = null;

                return;

            }

            final UpdaterThread updaterThread = new UpdaterThread(downloadManagerPendingId);

            final UpdaterThread updaterThread =

                    new UpdaterThread(getContext(), downloadManagerPendingId);

            updaterThread.start();

            mReporterThread = updaterThread;

        } else {

        updateReporterThreadRunningStatusAccordingToVisibility();

    }

    private static class UpdaterThread extends Thread {

        private final static int REPORT_PERIOD = 1000; // how often to report progress

    private class UpdaterThread extends Thread {

        private final static int REPORT_PERIOD = 150; // how often to report progress, in ms

        final DownloadManager mDownloadManager;

        final int mId;

        public UpdaterThread(final int id) {

        public UpdaterThread(final Context context, final int id) {

            super();

            mDownloadManager = (DownloadManager) context.getSystemService(Context.DOWNLOAD_SERVICE);

            mId = id;

        }

        @Override

        public void run() {

            try {

                // TODO: implement the actual query and reporting

                // It's almost impossible that mDownloadManager is null (it would mean it has been

                // disabled between pressing the 'install' button and displaying the progress

                // bar), but just in case.

                if (null == mDownloadManager) return;

                final UpdateHelper updateHelper = new UpdateHelper();

                final Query query = new Query().setFilterById(mId);

                int lastProgress = 0;

                while (!isInterrupted()) {

                    final Cursor cursor = mDownloadManager.query(query);

                    if (null == cursor) {

                        // Can't contact DownloadManager: this should never happen.

                        return;

                    }

                    try {

                        if (cursor.moveToNext()) {

                            final int columnBytesDownloadedSoFar = cursor.getColumnIndex(

                                    DownloadManager.COLUMN_BYTES_DOWNLOADED_SO_FAR);

                            final int bytesDownloadedSoFar =

                                    cursor.getInt(columnBytesDownloadedSoFar);

                            updateHelper.setProgressFromAnotherThread(bytesDownloadedSoFar);

                        } else {

                            // Download has finished and DownloadManager has already been asked to

                            // clean up the db entry.

                            updateHelper.setProgressFromAnotherThread(getMax());

                            return;

                        }

                    } finally {

                        cursor.close();

                    }

                    Thread.sleep(REPORT_PERIOD);

                }

            } catch (InterruptedException e) {

                // Do nothing and terminate normally.

            }

        }

        private class UpdateHelper implements Runnable {

            private int mProgress;

            @Override

            public void run() {

                setProgress(mProgress);

            }

            public void setProgressFromAnotherThread(final int progress) {

                if (mProgress != progress) {

                    mProgress = progress;

                    // For some unknown reason, setProgress just does not work from a separate

                    // thread, although the code in ProgressBar looks like it should. Thus, we

                    // resort to a runnable posted to the handler of the view.

                    final Handler handler = getHandler();

                    // It's possible to come here before this view has been laid out. If so,

                    // just ignore the call - it will be updated again later.

                    if (null == handler) return;

                    handler.post(this);

                }

            }

        }

    }

}