Java 如何获取复选框首选项值？
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How to get checkbox preference value?
提问by Sabre
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.
我在首选项中有复选框。如果复选框被选中，我想保持屏幕开启，如果复选框未被选中，我想保持屏幕开启。
I want something like this:
我想要这样的东西：
boolean keepScreen = sharedPrefs.getBoolean("chck_screen", false);
if (keepScreen.equals(false)) {
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
}
Please, help.
请帮忙。
采纳答案by dymmeh
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:
如果您正在使用 PreferenceActivity 并在 XML 中使用键“checkbox_preference”（将其重命名为您拥有的任何名称）声明复选框，您可以执行以下操作：
CheckBoxPreference pref = (CheckBoxPreference) findPreference("checkbox_preference");
pref.isChecked(); returns if it is checked or not
pref.isChecked(); 如果选中或未选中则返回
Additionally, you can set a listener for whenever the value is changed
此外，您可以在值更改时设置侦听器
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;
}
});
回答by Alenka
You can also use PreferenceManager.getSharedPreferences().getBoolean(String key, boolean defValue)for getting you preferences value
您还可以PreferenceManager.getSharedPreferences().getBoolean(String key, boolean defValue)用于获取您的偏好值
