Change the way to find "More" menu item on Android OS without action bar.

2012-11-29 18:51:12 +08:00
commit 624871b5e3
694 changed files with 66645 additions and 0 deletions
@@ -0,0 +1,168 @@
+/*
+ * Copyright 2012 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.settings;
+
+import com.google.android.apps.mytracks.Constants;
+import com.google.android.apps.mytracks.io.backup.BackupPreferencesListener;
+import com.google.android.apps.mytracks.util.ApiAdapterFactory;
+import com.google.android.maps.mytracks.R;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.preference.ListPreference;
+import android.preference.Preference;
+import android.preference.Preference.OnPreferenceChangeListener;
+import android.preference.PreferenceActivity;
+import android.preference.PreferenceManager;
+import android.speech.tts.TextToSpeech;
+import android.view.MenuItem;
+
+/**
+ * An abstract activity for all the settings activities.
+ * 
+ * @author Jimmy Shih
+ */
+public class AbstractSettingsActivity extends PreferenceActivity {
+
+  private BackupPreferencesListener backupPreferencesListener;
+
+  @SuppressWarnings("deprecation")
+  @Override
+  protected void onCreate(Bundle bundle) {
+    super.onCreate(bundle);
+    setVolumeControlStream(TextToSpeech.Engine.DEFAULT_STREAM);
+    ApiAdapterFactory.getApiAdapter().configureActionBarHomeAsUp(this);
+
+    PreferenceManager preferenceManager = getPreferenceManager();
+    preferenceManager.setSharedPreferencesName(Constants.SETTINGS_NAME);
+    preferenceManager.setSharedPreferencesMode(Context.MODE_PRIVATE);
+
+    // Set up automatic preferences backup
+    backupPreferencesListener =  new BackupPreferencesListener(this);
+
+    preferenceManager.getSharedPreferences()
+        .registerOnSharedPreferenceChangeListener(backupPreferencesListener);
+  }
+
+  @Override
+  public boolean onOptionsItemSelected(MenuItem item) {
+    if (item.getItemId() != android.R.id.home) {
+      return super.onOptionsItemSelected(item);
+    }
+    finish();
+    return true;
+  }
+
+  @SuppressWarnings("deprecation")
+  @Override
+  protected void onDestroy() {
+    super.onDestroy();
+    PreferenceManager preferenceManager = getPreferenceManager();
+    preferenceManager.getSharedPreferences()
+        .unregisterOnSharedPreferenceChangeListener(backupPreferencesListener);
+  }
+
+  /**
+   * Configures a preference.
+   * 
+   * @param preference the preference
+   * @param options the list of displayed options
+   * @param values the list of stored values
+   * @param summaryId the summary id
+   * @param value the stored value
+   */
+  protected void configurePreference(final Preference preference, final String[] options,
+      final String[] values, final int summaryId, String value) {
+    configurePreference(preference, options, values, summaryId, value, null);
+  }
+
+  /**
+   * Configures a preference.
+   * 
+   * @param preference the preference
+   * @param options the list of displayed options
+   * @param values the list of stored values
+   * @param summaryId the summary id
+   * @param value the stored value
+   * @param listener listener to invoke
+   */
+  protected void configurePreference(final Preference preference, final String[] options,
+      final String[] values, final int summaryId, String value,
+      final OnPreferenceChangeListener listener) {
+    if (options != null) {
+      ((ListPreference) preference).setEntries(options);
+    }
+    if (values != null) {
+      ((ListPreference) preference).setEntryValues(values);
+    }
+    preference.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {
+        @Override
+      public boolean onPreferenceChange(Preference pref, Object newValue) {
+        updatePreferenceSummary(pref, options, values, summaryId, (String) newValue);
+        if (listener != null) {
+          listener.onPreferenceChange(pref, newValue);
+        }
+        return true;
+      }
+    });
+    updatePreferenceSummary(preference, options, values, summaryId, value);
+    if (listener != null) {
+      listener.onPreferenceChange(preference, value);
+    }
+  }
+
+  /**
+   * Updates a preference when a stored value changes.
+   * 
+   * @param preference the preference
+   * @param options the list of displayed options
+   * @param values the list of stored values
+   * @param summaryId the summary id
+   * @param value the stored value
+   */
+  private void updatePreferenceSummary(
+      Preference preference, String[] options, String[] values, int summaryId, String value) {
+    String summary = getString(summaryId);
+    String option;
+    if (options != null && values != null) {
+      option = getOption(options, values, value);
+      if (option == null) {
+        option = getString(R.string.value_unknown);
+      }
+    } else {
+      option = value != null && value.length() != 0 ? value : getString(R.string.value_unknown);
+    }
+    summary += "\n" + option;
+    preference.setSummary(summary);
+  }
+
+  /**
+   * Gets the display option for a stored value.
+   * 
+   * @param options the list of the display options
+   * @param values the list of the stored values
+   * @param value the store value
+   */
+  private String getOption(String[] options, String[] values, String value) {
+    for (int i = 0; i < values.length; i++) {
+      if (value.equals(values[i])) {
+        return options[i];
+      }
+    }
+    return null;
+  }
+}