在将密码保存到本地Android数据库之前,我需要对其进行加密。如果不加密,一切都正常,我有preferences.xml等。当我更改首选项的值(例如密码)后,如何调用一个函数?以下是我的代码:
public class Preferences extends PreferenceActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.preferences);
// Get the custom preference
Preference customPref = (Preference) findPreference("pass");
customPref.setOnPreferenceChangeListener(new OnPreferenceChangeListener(){
@Override
public boolean onPreferenceChange(Preference preference, Object newValue) {
String crypto = SimpleCrypto.encrypt("MYSECRETKEY", newValue.toString()); // encrypt
// Here is where I'm wrong, I guess.
SharedPreferences settings = getSharedPreferences("preferences", MODE_PRIVATE);
SharedPreferences.Editor editor = settings.edit();
editor.putString("pass", crypto);
editor.commit();
});
}
}
提示:就像这样,当我更改密码时,它会以未加密的形式存储密码。