android sharedpreference 简易实现

package supperRabbit.Store_SharedPreferences; import android.app.Activity; import android.content.SharedPreferences; import android.os.Bundle; import android.widget.EditText; public class DBSharedPreferences extends Activity { public static final String SETTING_INFOS = "SETTING_Infos"; public static final String NAME = "NAME"; public static final String PASSWORD = "PASSWORD"; private EditText field_name; private EditText field_password; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); field_name = (EditText)findViewById(R.id.name); field_password = (EditText)findViewById(R.id.password); SharedPreferences settings = getSharedPreferences(SETTING_INFOS,0); String name = settings.getString(NAME, ""); String password = settings.getString(PASSWORD, ""); field_name.setText(name); field_password.setText(password); } @Override protected void onStop() { // TODO Auto-generated method stub super.onStop(); SharedPreferences settings = getSharedPreferences(SETTING_INFOS,0); settings.edit().putString(NAME, field_name.getText().toString()) .putString(PASSWORD, field_password.getText().toString()) .commit(); } }