我使用SharedPreferences,有时我在logcat中得到了这样的警告:SharedPreferences奇怪的警告
08-27 11:46:55.453: W/SharedPreferencesImpl(21824): getSharedPreferences
08-27 11:46:55.453: W/SharedPreferencesImpl(21824): org.xmlpull.v1.XmlPullParserException: Map value without name attribute: string
08-27 11:46:55.453: W/SharedPreferencesImpl(21824): at com.android.internal.util.XmlUtils.readThisMapXml(XmlUtils.java:568)
08-27 11:46:55.453: W/SharedPreferencesImpl(21824): at com.android.internal.util.XmlUtils.readThisValueXml(XmlUtils.java:821)
08-27 11:46:55.453: W/SharedPreferencesImpl(21824): at com.android.internal.util.XmlUtils.readValueXml(XmlUtils.java:755)
08-27 11:46:55.453: W/SharedPreferencesImpl(21824): at com.android.internal.util.XmlUtils.readMapXml(XmlUtils.java:494)
08-27 11:46:55.453: W/SharedPreferencesImpl(21824): at android.app.SharedPreferencesImpl.loadFromDiskLocked(SharedPreferencesImpl.java:113)
08-27 11:46:55.453: W/SharedPreferencesImpl(21824): at android.app.SharedPreferencesImpl.access$000(SharedPreferencesImpl.java:48)
08-27 11:46:55.453: W/SharedPreferencesImpl(21824): at android.app.SharedPreferencesImpl$1.run(SharedPreferencesImpl.java:87)
它正在大多数情况下,但有时测试人员说,他们得到了与它的问题。有时候加载回来根本不起作用。 这是我SharedPreffer
类:
public class SharedPreffer {
String PREF_FILE_NAME = "saveFile";
public SharedPreffer(Context context) {
this.context = context;
}
Context context;
public static final String DEFAULT_VALUE = "";
public void savePreferences(String key, int value) {
SharedPreferences sharedPreferences = context.getSharedPreferences(
PREF_FILE_NAME, 0);
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putString(key, Integer.toString(value));
editor.commit();
}
public void savePreferences(String key, String value) {
SharedPreferences sharedPreferences = context.getSharedPreferences(
PREF_FILE_NAME, 0);
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putString(key, value);
editor.commit();
}
public void savePreferences(String key, Boolean value) {
SharedPreferences sharedPreferences = context.getSharedPreferences(
PREF_FILE_NAME, 0);
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putString(key, Boolean.toString(value));
editor.commit();
}
public String loadPreferences(String key) {
SharedPreferences sharedPreferences = context.getSharedPreferences(PREF_FILE_NAME, 0);
return sharedPreferences.getString(key, DEFAULT_VALUE);
}
}
任何人都可以通过我这个有什么秘诀?
'有时他们遇到问题'是一个非常好的问题描述。你能否详细说明一下? –
也许您正在尝试编写空名称“Map name without name attribute” –
您是否检查了这两个链接http://stackoverflow.com/questions/5368442/android-getsharedpreferences-error-map-value-without- name-attribute-boolean和http://stackoverflow.com/questions/11601109/trouble-with-sharedpreferences-conflicting-during-app-operation-and-then-disappe – surhidamatya