共享preferences和放大器;布尔 [英] SharedPreferences & boolean

问题描述

我想执行的方法时设置了isPhysicalTheftEnabled为假，但是这似乎并没有工作。任何人有什么想法？

 共享preferences SP = getShared preferences（isPhysicalTheftEnabled，MODE_WORLD_READABLE）;
        共享preferences.Editor ED = sp.edit（）;
        ed.putBoolean（isPhysicalTheftEnabled，假）;
 

解决方案

尝试添加 ed.commit（）。

即：

 共享preferences SP = getShared preferences（isPhysicalTheftEnabled，MODE_WORLD_READABLE）;
共享preferences.Editor ED = sp.edit（）;
ed.putBoolean（isPhysicalTheftEnabled，假）;
ed.commit（）;
 

共享preferences.Editor 取值要求您提交任何你在你的共享preferences更改更改申请。

关于对ANKIT的回答您的评论：

要设置你的复选框根据您保存到共享preferences布尔值，你需要的是这样的：

 共享preferences SP = getShared preferences（isPhysicalTheftEnabled，MODE_WORLD_READABLE）;
myCheckBox.setChecked（sp.getBoolean（isPhysicsTheftEnabled，[真/假]）;
 

..在其中任意选取真或假为 def_value .getBoolean（）（如共享preferences 找不到布尔）。

I'm trying to set the "isPhysicalTheftEnabled" to false when a method is executed, but this doesn't seem to work. Anyone have any idea?

        SharedPreferences sp = getSharedPreferences("isPhysicalTheftEnabled", MODE_WORLD_READABLE);
        SharedPreferences.Editor ed = sp.edit();
        ed.putBoolean("isPhysicalTheftEnabled", false);

解决方案

Try adding ed.commit().

i.e.:

SharedPreferences sp = getSharedPreferences("isPhysicalTheftEnabled", MODE_WORLD_READABLE);
SharedPreferences.Editor ed = sp.edit();
ed.putBoolean("isPhysicalTheftEnabled", false);
ed.commit();

SharedPreferences.Editors require that you commit anything you change in your SharedPreferences for the changes to apply.

Regarding your comment on Ankit's answer:

To set the checked property of your CheckBox based on the value of the boolean you saved to SharedPreferences, you need something like:

SharedPreferences sp = getSharedPreferences("isPhysicalTheftEnabled", MODE_WORLD_READABLE);
myCheckBox.setChecked(sp.getBoolean("isPhysicsTheftEnabled", [true/false]);

.. in which you pick either true or false for the def_value of .getBoolean() (if the SharedPreferences can't find the boolean).

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