我在eclipse中编写了一个Android应用程序。在我的首选项/设置屏幕中，我在顶部有开/关开关图标。如果我滚动到设置屏幕的底部并向上滚动到顶部再次看到开关，它们已从关闭更改为开启，或者开启或关闭。它们是随机的。并非所有开关都同时更改。有时它只是少数，有时都会这样做。
大多数情况下，它们似乎从关闭转为开启，但有时则相反。谁看过这个吗？有人可以帮忙解决这个问题吗？如果需要，当我到PC时，我会发布代码。感谢。
编辑：这是我的代码。这是我的主要活动，即选项菜单代码。此主要活动是具有多个片段的ViewPager。超过一半的时间你会看到我在哪里调用设置活动。
@Override
public boolean onOptionsItemSelected(com.actionbarsherlock.view.MenuItem item) {
// Handle item selection
switch (item.getItemId()) {
case R.id.refresh:
item.setActionView(R.layout.ab_loading);
item.expandActionView();
if (currentTab == 0 && mMarketFragment != null && mMarketFragment.isAdded()) {
Log.v(TAG, "MarketFrag isnt null and its added");
Loader loader = mMarketFragment.getLoaderManager().getLoader(2);
if ( loader != null && !loader.isReset() ) {
mMarketFragment.getLoaderManager().restartLoader(2, null, mMarketFragment);
mMarketFragment.getLoaderManager().restartLoader(3, null, mMarketFragment);
mMarketFragment.getLoaderManager().restartLoader(4, null, mMarketFragment);
} else {
mMarketFragment.getLoaderManager().initLoader(2, null, mMarketFragment);
mMarketFragment.getLoaderManager().initLoader(3, null, mMarketFragment);
mMarketFragment.getLoaderManager().initLoader(4, null, mMarketFragment);
}
}
else if (currentTab == 1 && mPortfolioFragment != null && mPortfolioFragment.isAdded()) {
Log.v(TAG, "PortfolioFrag isnt null and is added");
Loader loader2 = mPortfolioFragment.getLoaderManager().getLoader(-1);
if ( loader2 != null && !loader2.isReset() ) {
mPortfolioFragment.getLoaderManager().restartLoader(-1, null, mPortfolioFragment);
} else {
mPortfolioFragment.getLoaderManager().initLoader(-1, null, mPortfolioFragment);
}
mPortfolioFragment.getLoaderManager().getLoader(-1).forceLoad();
}
else if (currentTab == 2 && mNewsFragment != null) {
mNewsFragment.refresh();
}
else if (currentTab == 3 && mTwitterFragment != null) {
mTwitterFragment.refresh();
}
return true;
case R.id.dark:
MainStocksICSActivity.THEME = R.style.DefaultTheme;
saveTheme(R.style.DefaultTheme);
return true;
case R.id.light:
MainStocksICSActivity.THEME = R.style.LightTheme;
saveTheme(R.style.LightTheme);
return true;
case R.id.lightDark:
MainStocksICSActivity.THEME = R.style.LightDarkTheme;
saveTheme(R.style.LightDarkTheme);
return true;
case R.id.settings:
Intent intent = new Intent();
intent.setClass(MarketActivity.this, SettingsActivity.class);
Log.v(TAG, "settings call");
startActivityForResult(intent, ACTIVITY_SETTINGS);
return true;
case android.R.id.home:
// app icon in action bar clicked; go home
super.onBackPressed();
return true;
case R.id.stocksearch:
intent = new Intent();
intent.setClass(MarketActivity.this, StockSearchActivity.class);
//intent.setFlags(Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP);
//intent.setFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
Log.v(TAG, "stock search call");
startActivityForResult(intent, MENU_STOCK_ADDTICKER);
return true;
default:
return true;
}
}
这是我的设置活动和片段。
public class SettingsActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Display the fragment as the main content.
getFragmentManager().beginTransaction().replace(android.R.id.content,
new PrefsFragment()).commit();
}
public static class PrefsFragment extends PreferenceFragment {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Load the preferences from an XML resource
addPreferencesFromResource(R.xml.settings);
}
}
}
这是我的设置XML。
<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
android:key="using_categories_in_root_screen"
android:title="SETTINGS"
android:summary="Test">
<PreferenceCategory
xmlns:android="http://schemas.android.com/apk/res/android"
android:key="settings_topic_title"
android:title="GENERAL">
<SwitchPreference
android:key="settings_rss_feed_save"
android:title="@string/settings_saving_policy_title"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
android:summary="@string/settings_saving_policy_summary" />
<!--CheckBoxPreference
android:key="settings_auto_sync"
android:title="@string/settings_sync_title"
android:summary="@string/settings_sync_summary" /-->
<SwitchPreference
android:key="settings_use_external_browser"
android:title="Use external browser"
android:summary="User external browser when displaying web content for stocks and news"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
android:defaultValue="false" />
</PreferenceCategory>
<PreferenceCategory
xmlns:android="http://schemas.android.com/apk/res/android"
android:key="invert_graph"
android:title="Graph Color">
<SwitchPreference
android:key="settings_invert_graph"
android:title="Invert Graph with Theme"
android:summary="Whether to invert the graph color wiht the selected theme."
android:switchTextOn = "Yes"
android:switchTextOff = "No"
android:defaultValue="true" />
</PreferenceCategory>
<PreferenceCategory
android:title="Quotes Source">
<EditTextPreference
android:key="edittext_preference"
android:title="@string/title_edittext_preference"
android:summary="@string/summary_edittext_preference"
android:dialogTitle="@string/dialog_title_edittext_preference" />
<ListPreference
android:key="stock_data_source"
android:title="Quote Data Source"
android:summary="Select Yahoo or Google for quotes"
android:entries="@array/stock_data_source_options"
android:entryValues="@array/stock_data_source"
android:defaultValue="yahoo_data"
android:dialogTitle="Select the quote source" />
<ListPreference
android:key="chart_data_source"
android:title="Chart Data Source"
android:summary="Set the Small Chart (non-trendline is better for clearer small text)"
android:entries="@array/chart_data_source_options"
android:entryValues="@array/chart_data_source"
android:defaultValue="yahoo_chart_with_trendlines"
android:dialogTitle="Select the chart source" />
</PreferenceCategory>
<PreferenceCategory
android:title="News Options">
<!-- This PreferenceScreen tag serves as a screen break (similar to page break
in word processing). Like for other preference types, we assign a key
here so it is able to save and restore its instance state. -->
<PreferenceScreen
android:key="subscriptions_screen"
android:title="Yahoo News Categories"
android:summary="Select which categories to display in news general screen">
<!-- You can place more preferences here that will be shown on the next screen. -->
<PreferenceCategory
xmlns:android="http://schemas.android.com/apk/res/android"
android:key="subscriptions_news"
android:title="@string/title_newstopic">
<SwitchPreference
android:key="usmarkets"
android:title="@string/title_usmarkets"
android:summary="Something"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
/>
<SwitchPreference
android:key="mostpopular"
android:title="@string/title_mostpopular"
android:summary="Test"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
/>
<SwitchPreference
android:key="investingstrategies"
android:title="@string/title_investingstrategies"
android:summary="four"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
/>
<SwitchPreference
android:key="taxes"
android:title="@string/title_taxes"
android:summary="funtimes"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
/>
</PreferenceCategory>
<PreferenceCategory
xmlns:android="http://schemas.android.com/apk/res/android"
android:key="subscription_basicmaterials"
android:title="@string/title_basicmaterials">
<SwitchPreference
android:key="OilGasRefiningMarketing"
android:title="@string/title_OilGasRefiningMarketing"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
/>
<SwitchPreference
android:key="Gold"
android:title="@string/title_Gold"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
/>
<SwitchPreference
android:key="Silver"
android:title="@string/title_Silver"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
/>
<SwitchPreference
android:key="SteelIron"
android:title="@string/title_SteelIron"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
/>
<SwitchPreference
android:key="Synthetics"
android:title="@string/title_Synthetics"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
/>
</PreferenceCategory>
<PreferenceCategory
xmlns:android="http://schemas.android.com/apk/res/android"
android:key="subscription_financial"
android:title="@string/title_financial">
<SwitchPreference
android:key="AssetManagement"
android:title="@string/title_AssetManagement"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
/>
<SwitchPreference
android:key="RealEstateDevelopment"
android:title="@string/title_RealEstateDevelopment"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
/>
<SwitchPreference
android:key="CreditServices"
android:title="@string/title_CreditServices"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
/>
<SwitchPreference
android:key="LifeInsurance"
android:title="@string/title_LifeInsurance"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
/>
<SwitchPreference
android:key="SavingsLoans"
android:title="@string/title_SavingsLoans"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
/>
</PreferenceCategory>
<PreferenceCategory
xmlns:android="http://schemas.android.com/apk/res/android"
android:key="subscription_healthcare"
android:title="@string/title_healthcare">
<SwitchPreference
android:key="HealthCarePlans"
android:title="@string/title_HealthCarePlans"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
/>
<SwitchPreference
android:key="Hospitals"
android:title="@string/title_Hospitals"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
/>
<SwitchPreference
android:key="MedicalInstrumentsSupplies"
android:title="@string/title_MedicalInstrumentsSupplies"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
/>
</PreferenceCategory>
<PreferenceCategory
xmlns:android="http://schemas.android.com/apk/res/android"
android:key="subscription_technology"
android:title="@string/title_technology">
<SwitchPreference
android:key="ApplicationSoftware"
android:title="@string/title_ApplicationSoftware"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
/>
<SwitchPreference
android:key="HealthcareInformationServices"
android:title="@string/title_HealthcareInformationServices"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
/>
<SwitchPreference
android:key="InternetSoftwareServices"
android:title="@string/title_InternetSoftwareServices"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
/>
<SwitchPreference
android:key="WirelessCommunications"
android:title="@string/title_WirelessCommunications"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
/>
</PreferenceCategory>
</PreferenceScreen>
<SwitchPreference
android:key="google_news"
android:title="Google News"
android:summary="Whether to include Google News"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
android:defaultValue="false" />
<SwitchPreference
android:key="foxbusiness_news"
android:title="Fox Business News"
android:summary="Whether to include Fox Business News"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
android:defaultValue="true" />
<SwitchPreference
android:key="bloggingstocks_news"
android:title="Blogging Stocks News"
android:summary="Whether to include BloggingStocks News"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
android:defaultValue="false" />
<SwitchPreference
android:key="wsj_news"
android:title="Wall St Journal Market News"
android:summary="Whether to include WSJ News"
android:switchTextOn = "YES"
android:switchTextOff = "NO"
android:defaultValue="false" />
</PreferenceCategory>
所有开关在离开屏幕时都不会粘住并重置。请注意，我的设置有几个屏幕，一个使用列表首选项，而顶部的主屏幕没有。然而，所有交换机都不会坚持下去。我错过了一些愚蠢的东西吗？如果我忽视某些事情，请帮忙。谢谢！