如果我在一個活動中設置了共享首選項,爲什麼另一個有不同的首選項?上下文變了? (但我本身使用的應用程序上下文!)共享首選項不會因活動而改變?
這裏是我的代碼
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();
}
...
我怎樣才能讓全球喜好是sh在所有活動之中android 3.2?有沒有android提供的東西,或者我必須編寫一個保存到文件/打開文件,並將其添加到每個活動onStop()/ onCreate()?
如何將'ditta_id_selezionata'添加到sharedPreferences中?首先我可以想到的是,你忘記提交()後,你可以設置值 – SERPRO 2012-03-14 16:23:29
看到一個代碼spinet你把東西放在sharedpreference – Blackbelt 2012-03-14 16:23:31
添加代碼,我設置sharedpref – max4ever 2012-03-16 08:45:16