How to get checkbox preference value?

Question

I have checkbox in preferences. I want to keep screen on if checkbox is checked and not to keep screen on if checkbox is not checked.

I want something like this:

boolean keepScreen = sharedPrefs.getBoolean("chck_screen", false);

if (keepScreen.equals(false)) {
    getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

}

Please, help.

Answer 1

If you are using a PreferenceActivity and have the checkbox declared in XML with the key "checkbox_preference" (rename it to whatever you have) you can do this:

CheckBoxPreference pref = (CheckBoxPreference) findPreference("checkbox_preference");

pref.isChecked(); returns if it is checked or not

Additionally, you can set a listener for whenever the value is changed

pref.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {

            @Override
            public boolean onPreferenceChange(Preference preference, Object newValue)
            {
                boolean checked = Boolean.valueOf(newValue.toString());

                //set your shared preference value equal to checked

                return true;
            }
        });

Answer 2

您还可以使用PreferenceManager.getSharedPreferences().getBoolean(String key, boolean defValue)来获取首选项值