OnSharedPreferenceChangeListener
场景：onSharedPreferenceChangeListener种
onSharedPreferenceChangeListener类
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onSharedPreferenceChangeListener类
onSharedPreferenceChangeListener类
1。用途 - 用于监视Shared Preference的变化
2。例子
public class MyActivity
extends Activity implements OnSharedPreferenceChangeListener
{
@Override
public void onCreate(Bundle SavedInstanceState)
{
Context context =
getApplicationContext();
SharedPreferences prefs
= PreferenceManager.getDefaultSharedPreferences(context);
prefs.registerOnSharedPreferenceChangeListener
(this); //
注册
}
public void onSharedPreferenceChanged
(SharedPreferences prefs,
String key) {
// 事件处理器.
根据数据的变化,对显示和行为作改变
}
}