如何保存toogleButton的开/关选择的状态?状态、toogleButton

2023-09-04 06:05:30 作者:身后无一人,我怎敢倒下

你好,我已经实现了基于切换按钮选择该应用程序。但是当我关闭该应用程序,然后重新打开它,它会在其默认的选择是关。 因此,可以在任何budy告诉毫瓦我应该有保存toogleButton选择的状态,并基于该切换按钮选择状态有所行动。 。 。 谢谢你。

Hello i have implemented the application based on the toggleButton selection. but while i close that application and then reopen it, it will get in to its default selection that is "off". So can any budy tell mw what should i have to save the state of the toogleButton selection and perform some action based on that toggleButton selection state. . . Thanks.

推荐答案

使用共享preferences。

Use SharedPreferences.

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();
        }
    }
});

这是如何获取的值:

And this is how to retrieve the values:

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);
}

我没有验证这一点code,但看网上的一些例子,很容易!

I did not verify this code, but look at some examples on the net, it is easy!