Initial version of track search. (still lots of TODOs, but works)

2026-10-03 01:53:05 +02:00 · 2011-11-20 22:50:59 -02:00
commit bb3a14aac0
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+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks;
+
+import static com.google.android.apps.mytracks.Constants.TAG;
+
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
+import com.google.android.apps.mytracks.content.TracksColumns;
+import com.google.android.apps.mytracks.util.ApiFeatures;
+import com.google.android.apps.mytracks.util.UriUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.ContentUris;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnCancelListener;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.content.SharedPreferences.Editor;
+import android.net.Uri;
+import android.os.Bundle;
+import android.util.Log;
+
+/**
+ * Activity used to delete a track.
+ *
+ * @author Rodrigo Damazio
+ */
+public class DeleteTrack extends Activity
+    implements DialogInterface.OnClickListener, OnCancelListener {
+  private static final int CONFIRM_DIALOG = 1;
+
+  private MyTracksProviderUtils providerUtils;
+
+  private long deleteTrackId;
+
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+
+    providerUtils = MyTracksProviderUtils.Factory.get(this);
+
+    Intent intent = getIntent();
+    String action = intent.getAction();
+    Uri data = intent.getData();
+    if (!Intent.ACTION_DELETE.equals(action) ||
+        !UriUtils.matchesContentUri(data, TracksColumns.CONTENT_URI)) {
+      Log.e(TAG, "Got bad delete intent: " + intent);
+      finish();
+    }
+
+    deleteTrackId = ContentUris.parseId(data);
+
+    showDialog(CONFIRM_DIALOG);
+  }
+
+  @Override
+  protected Dialog onCreateDialog(int id) {
+    if (id != CONFIRM_DIALOG) {
+      Log.e(TAG, "Unknown dialog " + id);
+      return null;
+    }
+
+    AlertDialog.Builder builder = new AlertDialog.Builder(this);
+    builder.setMessage(getString(R.string.track_list_delete_track_confirm_message));
+    builder.setTitle(getString(R.string.generic_confirm_title));
+    builder.setIcon(android.R.drawable.ic_dialog_alert);
+    builder.setPositiveButton(getString(R.string.generic_yes), this);
+    builder.setNegativeButton(getString(R.string.generic_no), this);
+    builder.setOnCancelListener(this);
+    return builder.create();
+  }
+
+  @Override
+  public void onClick(DialogInterface dialogInterface, int which) {
+    dialogInterface.dismiss();
+    if (which == DialogInterface.BUTTON_POSITIVE) {
+      deleteTrack();
+    }
+    finish();
+  }
+
+  @Override
+  public void onCancel(DialogInterface dialog) {
+    onClick(dialog, DialogInterface.BUTTON_NEGATIVE);
+  }
+
+  private void deleteTrack() {
+    providerUtils.deleteTrack(deleteTrackId);
+
+    // If the track we just deleted was selected, unselect it.
+    String selectedKey = getString(R.string.selected_track_key);
+    SharedPreferences preferences = getSharedPreferences(Constants.SETTINGS_NAME, 0);
+    if (preferences.getLong(selectedKey, -1) == deleteTrackId) {
+      Editor editor = preferences.edit().putLong(selectedKey, -1);
+      ApiFeatures.getInstance().getApiAdapter().applyPreferenceChanges(editor);
+    }
+  }
+}