Android的getDefaultShared preferences [英] Android getDefaultSharedPreferences

问题描述

我的code是：

final String eulaKey = "mykey";
final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
boolean hasBeenShown = prefs.getBoolean(eulaKey, false);

始终返回根据操作系统版本不同的值。经过测试，在2.2，2.3.4，3.2，4.0.3 - 返回正确的值。但对于设备中兴刀片2.3.7与CianogenMod 7.1 - 结果始终是假的。我想：对于getBoolean默认值。

Always returns different values depending on os version. Tested in 2.2, 2.3.4, 3.2, 4.0.3 - returns correct value. But for device Zte blade with 2.3.7 with CianogenMod 7.1 - result is always false. I suppose default value for getBoolean.

下面是code写布尔：

Here is code writing boolean:

final String eulaKey = "mykey";
final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
SharedPreferences.Editor editor = prefs.edit();
editor.putBoolean(eulaKey, true);
editor.commit();

没有任何人有任何想法？

Does anybody have any idea?

更新： 比较我目前的code与我的previous的code版本 - 没有在code没有什么区别。 唯一的区别是明显的：code工程确定与minVersion = 8，targetVersion = 8 现在，我与编译minversion = 13 /因为Admob的/的= 8和目标。 也许一些API变化，但我什么也没发现这一点。

Update: Comparing my current code with my previous version of code - there is no difference in code. Only difference is in manifest: code works Ok with minVersion=8 and targetVersion=8 Now I'm compiling with minversion=8 and target=13 /because of Admob/. Maybe some APIs changed, but I found nothing on this.

解决方案： 从快捷方式，并从菜单中-Starting应用程序给了我不同的DefaultShared preferences。从我的code删除DefaultShared preferences后 - 它的作品完美。我不能随便说：人不犯快捷键，所以我不得不改变code

SOLUTION: -Starting app from shortcut and from menu gives me different DefaultSharedPreferences. After removing DefaultSharedPreferences from my code - it works perfect. I can't just say: people don't make shortcuts, so I had to change code.

推荐答案

试试这样说：

    final String eulaKey = "mykey";
    Context mContext = getApplicationContext();
    mPrefs = mContext.getSharedPreferences("myAppPrefs", Context.MODE_PRIVATE);
    SharedPreferences.Editor editor = mPrefs.edit();
    editor.putBoolean(eulaKey, true);
    editor.commit();

在这种情况下，您可以指定自己的preferences文件名（对myApp preFS），并可以控制访问persmission它。其它操作模式包括：MODE_WORLD_READABLE，MODE_WORLD_WRITEABLE，MODE_MULTI_PROCESS

in which case you can specify your own preferences file name (myAppPrefs) and can control access persmission to it. Other operating modes include: MODE_WORLD_READABLE, MODE_WORLD_WRITEABLE, MODE_MULTI_PROCESS

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