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Added in API level 1

public static interface SharedPreferences.OnSharedPreferenceChangeListener

android.content.SharedPreferences.OnSharedPreferenceChangeListener

在共享首选项发生更改时调用回调的接口定义。

Public methods
`abstract void`	`onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key)` 在共享首选项被更改，添加或删除时调用。

Added in API level 1

void onSharedPreferenceChanged (SharedPreferences sharedPreferences, 
                String key)

在共享首选项被更改，添加或删除时调用。即使首选项设置为其现有值，也可能会调用此选项。

此回调将在您的主线程上运行。

Parameters
`sharedPreferences`	`SharedPreferences`: The `SharedPreferences` that received the change.
`key`	`String`: The key of the preference that was changed, added, or removed.