android – 如何保存toogleButton开/关选择的状态？

tg = (ToggleButton) findViewById(R.id.toggleButton1);

tg.setOnClickListener(new OnClickListener()
{
    @Override
    public void onClick(View v)
    {

    if((tg.ischecked()))
        {
                SharedPreferences.Editor editor = preferences.edit();
                editor.putBoolean("tgpref",truE); // value to store
                editor.commit();
        }
        else
        {
                SharedPreferences.Editor editor = preferences.edit();
                editor.putBoolean("tgpref",falsE); // value to store
                editor.commit();
        }
    }
});

这是如何检索值：

SharedPreferences preferences = getPreferences(MODE_PRIVATE);
Boolean tgpref = preferences.getBoolean("tgpref",truE);  //default is true
if (tgpref = truE) //if (tgpref) may be enough,not sure
{
  tg.setchecked(true);
}
else
{
  tg.setchecked(false);
}

我没有验证这段代码,但是看一下网上的一些例子,很容易！