forked from upstream-mirrors/OpenTracks
Removed old-school key/value backup.
This commit is contained in:
Dennis Guse
-210
@@ -1,210 +0,0 @@
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/*
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* Copyright 2010 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.io.backup;
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import android.content.SharedPreferences;
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import android.content.SharedPreferences.Editor;
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import android.test.AndroidTestCase;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Set;
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/**
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* Tests for {@link PreferenceBackupHelper}.
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*
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* @author Rodrigo Damazio
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*/
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public class PreferenceBackupHelperTest extends AndroidTestCase {
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private Map<String, ?> preferenceValues;
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private SharedPreferences preferences;
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private PreferenceBackupHelper preferenceBackupHelper;
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/**
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* Mock shared preferences editor which does not persist state.
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*/
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private class MockPreferenceEditor implements SharedPreferences.Editor {
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private Map<String, Object> newPreferences = new HashMap<String, Object>(preferenceValues);
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@Override
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public Editor clear() {
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newPreferences.clear();
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return this;
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}
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@Override
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public boolean commit() {
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apply();
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return true;
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}
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@Override
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public void apply() {
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preferenceValues = newPreferences;
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}
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@Override
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public Editor putBoolean(String key, boolean value) {
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return put(key, value);
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}
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@Override
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public Editor putFloat(String key, float value) {
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return put(key, value);
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}
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@Override
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public Editor putInt(String key, int value) {
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return put(key, value);
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}
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@Override
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public Editor putLong(String key, long value) {
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return put(key, value);
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}
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@Override
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public Editor putString(String key, String value) {
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return put(key, value);
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}
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public Editor putStringSet(String key, Set<String> value) {
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return put(key, value);
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}
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private <T> Editor put(String key, T value) {
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newPreferences.put(key, value);
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return this;
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}
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@Override
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public Editor remove(String key) {
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newPreferences.remove(key);
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return this;
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}
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}
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/**
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* Mock shared preferences which does not persist state.
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*/
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private class MockPreferences implements SharedPreferences {
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@Override
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public boolean contains(String key) {
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return preferenceValues.containsKey(key);
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}
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@Override
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public Editor edit() {
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return new MockPreferenceEditor();
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}
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@Override
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public Map<String, ?> getAll() {
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return preferenceValues;
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}
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@Override
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public boolean getBoolean(String key, boolean defValue) {
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return get(key, defValue);
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}
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@Override
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public float getFloat(String key, float defValue) {
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return get(key, defValue);
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}
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@Override
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public int getInt(String key, int defValue) {
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return get(key, defValue);
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}
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@Override
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public long getLong(String key, long defValue) {
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return get(key, defValue);
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}
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@Override
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public String getString(String key, String defValue) {
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return get(key, defValue);
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}
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public Set<String> getStringSet(String key, Set<String> defValue) {
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return get(key, defValue);
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}
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@Override
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public void registerOnSharedPreferenceChangeListener(
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OnSharedPreferenceChangeListener listener) {
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throw new UnsupportedOperationException();
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}
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@Override
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public void unregisterOnSharedPreferenceChangeListener(
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OnSharedPreferenceChangeListener listener) {
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throw new UnsupportedOperationException();
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}
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@SuppressWarnings("unchecked")
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private <T> T get(String key, T defValue) {
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Object value = preferenceValues.get(key);
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if (value == null) return defValue;
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return (T) value;
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}
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}
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@Override
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protected void setUp() throws Exception {
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super.setUp();
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preferenceValues = new HashMap<String, Object>();
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preferences = new MockPreferences();
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preferenceBackupHelper = new PreferenceBackupHelper(getContext());
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}
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public void testExportImportPreferences() throws Exception {
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// Populate with some initial values
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Editor editor = preferences.edit();
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editor.clear();
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editor.putBoolean("bool1", true);
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editor.putBoolean("bool2", false);
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editor.putFloat("flt1", 3.14f);
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editor.putInt("int1", 42);
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editor.putLong("long1", 123456789L);
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editor.putString("str1", "lolcat");
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ApiAdapterFactory.getApiAdapter().applyPreferenceChanges(editor);
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// Export it
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byte[] exported = preferenceBackupHelper.exportPreferences(preferences);
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// Mess with the previous values
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editor = preferences.edit();
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editor.clear();
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editor.putString("str2", "Shouldn't be there after restore");
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editor.putBoolean("bool2", true);
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ApiAdapterFactory.getApiAdapter().applyPreferenceChanges(editor);
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// Import it back
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preferenceBackupHelper.importPreferences(exported, preferences);
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assertFalse(preferences.contains("str2"));
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assertTrue(preferences.getBoolean("bool1", false));
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assertFalse(preferences.getBoolean("bool2", true));
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assertEquals(3.14f, preferences.getFloat("flt1", 0.0f));
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assertEquals(42, preferences.getInt("int1", 0));
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assertEquals(123456789L, preferences.getLong("long1", 0));
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assertEquals("lolcat", preferences.getString("str1", ""));
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}
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}
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@@ -128,7 +128,6 @@ limitations under the License.
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android:xlargeScreens="true" />
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<application
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android:allowBackup="true"
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android:backupAgent="com.google.android.apps.mytracks.io.backup.MyTracksBackupAgent"
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android:hardwareAccelerated="true"
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android:icon="@drawable/ic_launcher_my_tracks"
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android:label="@string/my_tracks_app_name"
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-40
@@ -1,40 +0,0 @@
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/*
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* Copyright 2011 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.io.backup;
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import android.app.backup.BackupManager;
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import android.content.Context;
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import android.content.SharedPreferences;
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import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
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/**
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* Backup preference listener.
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*
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* @author Jimmy Shih
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*/
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public class BackupPreferencesListener implements OnSharedPreferenceChangeListener {
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private final BackupManager backupManager;
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public BackupPreferencesListener(Context context) {
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this.backupManager = new BackupManager(context);
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}
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@Override
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public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
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backupManager.dataChanged();
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}
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}
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-102
@@ -1,102 +0,0 @@
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/*
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* Copyright 2010 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.io.backup;
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import com.google.android.apps.mytracks.Constants;
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import android.app.backup.BackupAgent;
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import android.app.backup.BackupDataInput;
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import android.app.backup.BackupDataOutput;
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import android.content.Context;
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import android.content.SharedPreferences;
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import android.os.ParcelFileDescriptor;
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import android.util.Log;
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import java.io.IOException;
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/**
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* Backup agent used to backup and restore all preferences.
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* We use a regular {@link BackupAgent} instead of the convenient helpers in
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* order to be future-proof (assuming we'll want to back up tracks later).
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*
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* @author Rodrigo Damazio
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*/
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public class MyTracksBackupAgent extends BackupAgent {
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private static final String TAG = MyTracksBackupAgent.class.getSimpleName();
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private static final String PREFERENCES_ENTITY = "prefs";
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@Override
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public void onBackup(ParcelFileDescriptor oldState, BackupDataOutput data,
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ParcelFileDescriptor newState) throws IOException {
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Log.i(TAG, "Performing backup");
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SharedPreferences preferences = this.getSharedPreferences(
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Constants.SETTINGS_NAME, Context.MODE_PRIVATE);
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backupPreferences(data, preferences);
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Log.i(TAG, "Backup complete");
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}
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private void backupPreferences(BackupDataOutput data,
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SharedPreferences preferences) throws IOException {
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PreferenceBackupHelper preferenceDumper = createPreferenceBackupHelper();
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byte[] dumpedContents = preferenceDumper.exportPreferences(preferences);
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data.writeEntityHeader(PREFERENCES_ENTITY, dumpedContents.length);
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data.writeEntityData(dumpedContents, dumpedContents.length);
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}
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protected PreferenceBackupHelper createPreferenceBackupHelper() {
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return new PreferenceBackupHelper(this);
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}
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@Override
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public void onRestore(BackupDataInput data, int appVersionCode,
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ParcelFileDescriptor newState) throws IOException {
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Log.i(TAG, "Restoring from backup");
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while (data.readNextHeader()) {
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String key = data.getKey();
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Log.d(TAG, "Restoring entity " + key);
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if (key.equals(PREFERENCES_ENTITY)) {
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restorePreferences(data);
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} else {
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Log.e(TAG, "Found unknown backup entity: " + key);
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data.skipEntityData();
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}
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}
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Log.i(TAG, "Done restoring from backup");
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}
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/**
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* Restores all preferences from the backup.
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*
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* @param data the backup data to read from
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* @throws IOException if there are any errors while reading
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*/
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private void restorePreferences(BackupDataInput data) throws IOException {
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int dataSize = data.getDataSize();
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byte[] dataBuffer = new byte[dataSize];
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int read = data.readEntityData(dataBuffer, 0, dataSize);
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if (read != dataSize) {
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throw new IOException("Failed to read all the preferences data");
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}
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SharedPreferences preferences = this.getSharedPreferences(
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Constants.SETTINGS_NAME, Context.MODE_PRIVATE);
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PreferenceBackupHelper importer = createPreferenceBackupHelper();
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importer.importPreferences(dataBuffer, preferences);
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}
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}
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-219
@@ -1,219 +0,0 @@
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/*
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* Copyright 2010 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
|
||||
* the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
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*
|
||||
* 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
|
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* the License.
|
||||
*/
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package com.google.android.apps.mytracks.io.backup;
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import com.google.android.apps.mytracks.content.ContentTypeIds;
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import com.google.android.maps.mytracks.R;
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import android.annotation.SuppressLint;
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import android.content.Context;
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import android.content.SharedPreferences;
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import android.content.SharedPreferences.Editor;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.DataInputStream;
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import java.io.DataOutputStream;
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import java.io.IOException;
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import java.util.HashSet;
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import java.util.Map;
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/**
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* Helper for backing up and restoring shared preferences.
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*
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* @author Rodrigo Damazio
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*/
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public class PreferenceBackupHelper {
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private static final int BUFFER_SIZE = 2048;
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private final HashSet<String> doNotBackup;
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public PreferenceBackupHelper(Context context) {
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doNotBackup = new HashSet<String>();
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doNotBackup.add(context.getString(R.string.activity_recognition_type_key));
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doNotBackup.add(context.getString(R.string.ant_bike_cadence_sensor_id_key));
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doNotBackup.add(context.getString(R.string.ant_combined_bike_sensor_id_key));
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doNotBackup.add(context.getString(R.string.ant_heart_rate_monitor_id_key));
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doNotBackup.add(context.getString(R.string.ant_speed_distance_monitor_id_key));
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doNotBackup.add(context.getString(R.string.auto_resume_track_current_retry_key));
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doNotBackup.add(context.getString(R.string.bluetooth_sensor_key));
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doNotBackup.add(context.getString(R.string.drive_deleted_list_key));
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doNotBackup.add(context.getString(R.string.drive_edited_list_key));
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doNotBackup.add(context.getString(R.string.drive_largest_change_id_key));
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doNotBackup.add(context.getString(R.string.drive_sync_key));
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doNotBackup.add(context.getString(R.string.google_account_key));
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doNotBackup.add(context.getString(R.string.recording_track_id_key));
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doNotBackup.add(context.getString(R.string.recording_track_paused_key));
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doNotBackup.add(context.getString(R.string.share_track_account_key));
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doNotBackup.add(context.getString(R.string.weight_key));
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}
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/**
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* Exports all shared preferences from the given object as a byte array.
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*
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* @param preferences the preferences to export
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* @return the corresponding byte array
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* @throws IOException if there are any errors while writing to the byte array
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*/
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public byte[] exportPreferences(SharedPreferences preferences) throws IOException {
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ByteArrayOutputStream bufStream = new ByteArrayOutputStream(BUFFER_SIZE);
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DataOutputStream outWriter = new DataOutputStream(bufStream);
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exportPreferences(preferences, outWriter);
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return bufStream.toByteArray();
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}
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/**
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* Exports all shared preferences from the given object into the given output
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* stream.
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*
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* @param preferences the preferences to export
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* @param outWriter the stream to write them to
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* @throws IOException if there are any errors while writing the output
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*/
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public void exportPreferences(SharedPreferences preferences, DataOutputStream outWriter)
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throws IOException {
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Map<String, ?> values = preferences.getAll();
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for (String name : doNotBackup) {
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values.remove(name);
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}
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outWriter.writeInt(values.size());
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for (Map.Entry<String, ?> entry : values.entrySet()) {
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writePreference(entry.getKey(), entry.getValue(), outWriter);
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}
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outWriter.flush();
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}
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/**
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* Imports all preferences from the given byte array.
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*
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||||
* @param data the byte array to read preferences from
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* @param preferences the shared preferences to edit
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||||
* @throws IOException if there are any errors while reading
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*/
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public void importPreferences(byte[] data, SharedPreferences preferences) throws IOException {
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ByteArrayInputStream bufStream = new ByteArrayInputStream(data);
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DataInputStream reader = new DataInputStream(bufStream);
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importPreferences(reader, preferences);
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}
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/**
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* Imports all preferences from the given stream.
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||||
*
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||||
* @param reader the stream to read from
|
||||
* @param preferences the shared preferences to edit
|
||||
* @throws IOException if there are any errors while reading
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||||
*/
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||||
@SuppressLint("CommitPrefEdits")
|
||||
public void importPreferences(DataInputStream reader, SharedPreferences preferences)
|
||||
throws IOException {
|
||||
Editor editor = preferences.edit();
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||||
editor.clear();
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||||
|
||||
int numPreferences = reader.readInt();
|
||||
for (int i = 0; i < numPreferences; i++) {
|
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String name = reader.readUTF();
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byte typeId = reader.readByte();
|
||||
readAndSetPreference(name, typeId, reader, editor);
|
||||
}
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||||
editor.apply();
|
||||
}
|
||||
|
||||
/**
|
||||
* Reads a single preference and sets it into the given editor.
|
||||
*
|
||||
* @param name the name of the preference to read
|
||||
* @param typeId the type ID of the preference to read
|
||||
* @param reader the reader to read from
|
||||
* @param editor the editor to set the preference in
|
||||
* @throws IOException if there are errors while reading
|
||||
*/
|
||||
private void readAndSetPreference(String name, byte typeId, DataInputStream reader, Editor editor)
|
||||
throws IOException {
|
||||
|
||||
boolean save = true;
|
||||
if (doNotBackup.contains(name)) {
|
||||
save = false;
|
||||
}
|
||||
switch (typeId) {
|
||||
case ContentTypeIds.BOOLEAN_TYPE_ID:
|
||||
boolean booleanValue = reader.readBoolean();
|
||||
if (save) {
|
||||
editor.putBoolean(name, booleanValue);
|
||||
}
|
||||
return;
|
||||
case ContentTypeIds.LONG_TYPE_ID:
|
||||
long longValue = reader.readLong();
|
||||
if (save) {
|
||||
editor.putLong(name, longValue);
|
||||
}
|
||||
return;
|
||||
case ContentTypeIds.FLOAT_TYPE_ID:
|
||||
float floatValue = reader.readFloat();
|
||||
if (save) {
|
||||
editor.putFloat(name, floatValue);
|
||||
}
|
||||
return;
|
||||
case ContentTypeIds.INT_TYPE_ID:
|
||||
int intValue = reader.readInt();
|
||||
if (save) {
|
||||
editor.putInt(name, intValue);
|
||||
}
|
||||
return;
|
||||
case ContentTypeIds.STRING_TYPE_ID:
|
||||
String utfValue = reader.readUTF();
|
||||
if (save) {
|
||||
editor.putString(name, utfValue);
|
||||
}
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Writes a single preference.
|
||||
*
|
||||
* @param name the name of the preference to write
|
||||
* @param value the correctly-typed value of the preference
|
||||
* @param writer the writer to write to
|
||||
* @throws IOException if there are errors while writing
|
||||
*/
|
||||
private void writePreference(String name, Object value, DataOutputStream writer)
|
||||
throws IOException {
|
||||
writer.writeUTF(name);
|
||||
|
||||
if (value instanceof Boolean) {
|
||||
writer.writeByte(ContentTypeIds.BOOLEAN_TYPE_ID);
|
||||
writer.writeBoolean((Boolean) value);
|
||||
} else if (value instanceof Integer) {
|
||||
writer.writeByte(ContentTypeIds.INT_TYPE_ID);
|
||||
writer.writeInt((Integer) value);
|
||||
} else if (value instanceof Long) {
|
||||
writer.writeByte(ContentTypeIds.LONG_TYPE_ID);
|
||||
writer.writeLong((Long) value);
|
||||
} else if (value instanceof Float) {
|
||||
writer.writeByte(ContentTypeIds.FLOAT_TYPE_ID);
|
||||
writer.writeFloat((Float) value);
|
||||
} else if (value instanceof String) {
|
||||
writer.writeByte(ContentTypeIds.STRING_TYPE_ID);
|
||||
writer.writeUTF((String) value);
|
||||
} else {
|
||||
throw new IllegalArgumentException("Type " + value.getClass().getName() + " not supported");
|
||||
}
|
||||
}
|
||||
}
|
||||
-18
@@ -17,7 +17,6 @@
|
||||
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.maps.mytracks.R;
|
||||
|
||||
import android.app.ActionBar;
|
||||
@@ -38,8 +37,6 @@ import android.view.MenuItem;
|
||||
*/
|
||||
public class AbstractSettingsActivity extends PreferenceActivity {
|
||||
|
||||
private BackupPreferencesListener backupPreferencesListener;
|
||||
|
||||
@SuppressWarnings("deprecation")
|
||||
@Override
|
||||
protected void onCreate(Bundle bundle) {
|
||||
@@ -55,12 +52,6 @@ public class AbstractSettingsActivity extends PreferenceActivity {
|
||||
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
|
||||
@@ -72,15 +63,6 @@ public class AbstractSettingsActivity extends PreferenceActivity {
|
||||
return true;
|
||||
}
|
||||
|
||||
@SuppressWarnings("deprecation")
|
||||
@Override
|
||||
protected void onDestroy() {
|
||||
super.onDestroy();
|
||||
PreferenceManager preferenceManager = getPreferenceManager();
|
||||
preferenceManager.getSharedPreferences()
|
||||
.unregisterOnSharedPreferenceChangeListener(backupPreferencesListener);
|
||||
}
|
||||
|
||||
/**
|
||||
* Configures a list preference.
|
||||
*
|
||||
|
||||
Reference in New Issue
Block a user