Android ToggleButton always check

问题

I want to store in SharedPreferences if the toggle button is Checked or uncheck.

 toggle.setOnCheckedChangeListener(new OnCheckedChangeListener(){
         public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)

if(isChecked){             
    SharedPreferences.Editor editor = getSharedPreferences("SharedPrefName", MODE_PRIVATE).edit();
   editor.putBoolean("check", true);
      editor.commit();

    } 
else   {
  SharedPreferences.Editor editor = getSharedPreferences("SharedPrefName", MODE_PRIVATE).edit();
   editor.putBoolean("nocheck", false);
   editor.commit();
}
}});

But when I test this, it is always set to check in OnCreate() I added this:

SharedPreferences preferences = getSharedPreferences("SharedPrefName", MODE_PRIVATE);
    boolean value1 = preferences.getBoolean("check", true);  

    if (value1 = sharedPrefs.getBoolean("check", true)){
        psw.setChecked(value1);
    }else  {
        psw.setChecked(false);
    }

回答1:

In the OnCheckedChangeListener, if the checkbox is checked, you save check = true. When loading, the if will always be true, since you are comparing the value to itself (or the default which you gave as true) so it checks the box.

If the checkbox is not checked, you save nocheck = false. When loading, there is no check preference (or it has the previously saved true value) so the default true is loaded.

Fixing your code:

Listener method body:

SharedPreferences.Editor editor = getSharedPreferences("SharedPrefName", MODE_PRIVATE).edit();
editor.putBoolean("check", ischecked);
editor.commit();

Loading code (replace the second snippet with this):

psw.setChecked(preferences.getBoolean("check", false));

来源：https://stackoverflow.com/questions/21095297/android-togglebutton-always-check