如果我在一个活动中设置了共享首选项,为什么另一个有不同的首选项?上下文变了? (但我本身使用的应用程序上下文!)共享首选项不会因活动而改变?
这里是我的代码
MyApp appState = ((MyApp)this.activity.getApplicationContext());
appState.setDittaSelezionata((int) itemId);
....
MyApp appState = ((MyApp)this.getApplicationContext());
int ditta_id_selezionata = appState.getIdSomething();
而且
public class MyApp extends Application implements Parcelable {
private SharedPreferences getSharedPrefs()
{
SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(this);
//SharedPreferences settings = this.getSharedPreferences(MyApp.PREFS_NAME, this.MODE_PRIVATE);
return settings;
}
public int getIdSomething() {
SharedPreferences settings = this.getSharedPrefs();
return settings.getInt("ditta_id_selezionata", 0);
}
public void setDittaSelezionata(final int ditta_selezionata) {
SharedPreferences settings = this.getSharedPrefs();
SharedPreferences.Editor editor = settings.edit();
editor.putInt("ditta_id_selezionata", ditta_selezionata);
// Commit the edits!
editor.commit();
}
...
我怎样才能让全球喜好是sh在所有活动之中android 3.2?有没有android提供的东西,或者我必须编写一个保存到文件/打开文件,并将其添加到每个活动onStop()/ onCreate()?
如何将'ditta_id_selezionata'添加到sharedPreferences中?首先我可以想到的是,你忘记提交()后,你可以设置值 – SERPRO 2012-03-14 16:23:29
看到一个代码spinet你把东西放在sharedpreference – Blackbelt 2012-03-14 16:23:31
添加代码,我设置sharedpref – max4ever 2012-03-16 08:45:16