forked from upstream-mirrors/OpenTracks
Allowing SendActivity to receive sub-activity results (onActivityResult calls).
This commit is contained in:
Rodrigo Damazio
@@ -0,0 +1,226 @@
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/*
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* Copyright 2009 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* the License.
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*/
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package com.google.android.apps.mytracks;
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import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
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import com.google.android.apps.mytracks.content.TracksColumns;
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import com.google.android.apps.mytracks.io.file.TrackWriter;
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import com.google.android.apps.mytracks.io.file.TrackWriterFactory;
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import com.google.android.apps.mytracks.io.file.TrackWriterFactory.TrackFileFormat;
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import com.google.android.apps.mytracks.util.SystemUtils;
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import com.google.android.maps.mytracks.R;
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import android.app.Activity;
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import android.app.AlertDialog;
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import android.app.ProgressDialog;
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import android.content.DialogInterface;
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import android.content.SharedPreferences;
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import android.database.Cursor;
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import android.os.Handler;
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import android.os.HandlerThread;
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import android.os.PowerManager.WakeLock;
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import android.util.Log;
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import android.widget.Toast;
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/**
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* A class that will export all tracks to the sd card.
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*
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* @author Sandor Dornbush
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*/
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public class ExportAllTracks {
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// These must line up with the index in the array.
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public static final int GPX_OPTION_INDEX = 0;
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public static final int KML_OPTION_INDEX = 1;
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public static final int CSV_OPTION_INDEX = 2;
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public static final int TCX_OPTION_INDEX = 3;
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private final Activity activity;
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private WakeLock wakeLock;
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private ProgressDialog progress;
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private TrackFileFormat format = TrackFileFormat.GPX;
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private final DialogInterface.OnClickListener itemClick =
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new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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switch (which) {
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case GPX_OPTION_INDEX:
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format = TrackFileFormat.GPX;
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break;
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case KML_OPTION_INDEX:
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format = TrackFileFormat.KML;
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break;
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case CSV_OPTION_INDEX:
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format = TrackFileFormat.CSV;
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break;
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case TCX_OPTION_INDEX:
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format = TrackFileFormat.TCX;
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break;
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default:
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Log.w(Constants.TAG, "Unknown export format: " + which);
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}
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}
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};
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public ExportAllTracks(Activity activity) {
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this.activity = activity;
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Log.i(Constants.TAG, "ExportAllTracks: Starting");
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AlertDialog.Builder builder = new AlertDialog.Builder(activity);
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builder.setSingleChoiceItems(R.array.export_formats, 0, itemClick);
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builder.setPositiveButton(R.string.ok, positiveClick);
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builder.setNegativeButton(R.string.cancel, null);
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builder.show();
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}
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private final DialogInterface.OnClickListener positiveClick =
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new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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HandlerThread handlerThread;
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Handler handler;
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handlerThread = new HandlerThread("SendToMyMaps");
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handlerThread.start();
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handler = new Handler(handlerThread.getLooper());
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handler.post(runner);
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}
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};
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private final Runnable runner = new Runnable() {
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public void run() {
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aquireLocksAndExport();
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}
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};
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/**
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* Makes sure that we keep the phone from sleeping.
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* See if there is a current track. Aquire a wake lock if there is no
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* current track.
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*/
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private void aquireLocksAndExport() {
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SharedPreferences prefs =
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activity.getSharedPreferences(Constants.SETTINGS_NAME, 0);
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long recordingTrackId = -1;
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if (prefs != null) {
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recordingTrackId =
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prefs.getLong(activity.getString(R.string.recording_track_key), -1);
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}
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if (recordingTrackId != -1) {
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wakeLock = SystemUtils.acquireWakeLock(activity, wakeLock);
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}
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// Now we can safely export everything.
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exportAll();
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// Release the wake lock if we recorded one.
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// TODO check what happens if we started recording after getting this lock.
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if (wakeLock != null && wakeLock.isHeld()) {
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wakeLock.release();
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Log.i(Constants.TAG, "ExportAllTracks: Releasing wake lock.");
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}
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Log.i(Constants.TAG, "ExportAllTracks: Done");
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showToast(R.string.export_done, Toast.LENGTH_SHORT);
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}
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private void makeProgressDialog(final int trackCount) {
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String exportMsg = activity.getString(R.string.tracklist_btn_export_all);
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progress = new ProgressDialog(activity);
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progress.setIcon(android.R.drawable.ic_dialog_info);
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progress.setTitle(exportMsg);
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progress.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
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progress.setMax(trackCount);
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progress.setProgress(0);
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progress.show();
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}
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/**
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* Actually export the tracks.
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* This should be called after the wake locks have been aquired.
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*/
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private void exportAll() {
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// Get a cursor over all tracks.
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Cursor cursor = null;
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try {
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MyTracksProviderUtils providerUtils =
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MyTracksProviderUtils.Factory.get(activity);
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cursor = providerUtils.getTracksCursor("");
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if (cursor == null) {
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return;
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}
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final int trackCount = cursor.getCount();
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Log.i(Constants.TAG,
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"ExportAllTracks: Exporting: " + cursor.getCount() + " tracks.");
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int idxTrackId = cursor.getColumnIndexOrThrow(TracksColumns._ID);
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activity.runOnUiThread(new Runnable() {
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public void run() {
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makeProgressDialog(trackCount);
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}
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});
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for (int i = 0; cursor.moveToNext(); i++) {
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final int status = i;
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activity.runOnUiThread(new Runnable() {
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public void run() {
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synchronized (this) {
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if (progress == null) {
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return;
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}
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progress.setProgress(status);
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}
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}
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});
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long id = cursor.getLong(idxTrackId);
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Log.i(Constants.TAG, "ExportAllTracks: exporting: " + id);
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TrackWriter writer =
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TrackWriterFactory.newWriter(activity, providerUtils, id, format);
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if (writer == null) {
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showToast(R.string.error_track_does_not_exist, Toast.LENGTH_LONG);
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return;
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}
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writer.writeTrack();
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if (!writer.wasSuccess()) {
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// Abort the whole export on the first error.
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showToast(writer.getErrorMessage(), Toast.LENGTH_LONG);
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return;
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}
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}
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} finally {
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if (cursor != null) {
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cursor.close();
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}
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if (progress != null) {
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synchronized (this) {
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progress.dismiss();
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progress = null;
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}
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}
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}
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}
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private void showToast(final int messageId, final int length) {
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activity.runOnUiThread(new Runnable() {
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@Override
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public void run() {
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Toast.makeText(activity, messageId, length).show();
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}
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});
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}
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}
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