我已经做了一个存储用户设置的共享preference活动,现在我想在一个活动或普通的Java class.please值提供了一个解决方案或例子,我已经尝试过这种code,但失败了
I have made a shared preference activity that store the user settings, now i want to get values in a activity or normal java class.please provide a solution or example i have already tried this code but failed.
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
SharedPreferences channel=this.getSharedPreferences(strFile, Context.MODE_PRIVATE);
strChannel=channel.getString(keyChannel,"Default").toString();
Toast.makeText(getApplicationContext(), strChannel, Toast.LENGTH_LONG).show();
}
在此code strfile
的如。 com.android.pack.ClassName
是共享preference活动
从值是牵强,而且keyChannel是关键即在共享preference活动
。
in this code strfile
for eg. com.android.pack.ClassName
is SharedPreference Activity
from values to be fetched, and keyChannel is key that is same in SharedPreference Activity
.
请提供了解决方案。
推荐答案
如果你有一个共享preferenceActivity由你救了你的价值观
If you have a SharedPreferenceActivity by which you have saved your values
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
String imgSett = prefs.getString(keyChannel, "");
如果该值保存在共享preference一个活动,然后这是挽救它的正确方法。
if the value is saved in a SharedPreference in an Activity then this is the correct way to saving it.
SharedPreferences shared = getSharedPreferences(PREF_NAME, MODE_PRIVATE);
SharedPreferences.Editor editor = shared.edit();
editor.putString(keyChannel, email);
editor.commit();// commit is important here.
这是你如何检索值。
and this is how you can retrieve the values.
SharedPreferences shared = getSharedPreferences(PREF_NAME, MODE_PRIVATE);
String channel = (shared.getString(keyChannel, ""));
另外要注意,您可以在非活动类也这样做,但唯一的条件是,你需要传递活动的背景下。使用此上下文来获取共享preferences。
Also be aware that you can do so in a non-Activity class too but the only condition is that you need to pass the context of the Activity. use this context in to get the SharedPreferences.
mContext.getSharedPreferences(PREF_NAME, MODE_PRIVATE);
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