Android的通知时,电话簿更新(内容观察员) [英] Android notify when phone book is updated(Content Observer)
问题描述
我希望得到一个通知,我的电话,如果有在接触数据库(添加,删除).Right现在我使用ContentObserver得到notified.Following任何变化,我的code.Problem的是,我能无法知道哪些接触changed.Can任何人的帮助???
I want to get a notification on my phone if there is any change in the contact database(add,delete).Right now i am using ContentObserver to get notified.Following is my code.Problem is that i able not able to know which contact is changed.Can anyone help???
public class ContentObserverActivity extends Activity {
Button registerbutton;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
registerbutton=(Button)findViewById(R.id.button1);
registerbutton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
getContentResolver()
.registerContentObserver(
ContactsContract.Contacts.CONTENT_URI, true,
new MyCOntentObserver());
}
});
}
public class MyCOntentObserver extends ContentObserver{
public MyCOntentObserver() {
super(null);
}
@Override
public void onChange(boolean selfChange) {
super.onChange(selfChange);
Log.e("","~~~~~~"+selfChange);
}
@Override
public boolean deliverSelfNotifications() {
return true;
}
}
}
在此先感谢。
Thanks in advance.
推荐答案
观察不提供信息,这里面联系人添加/更新/删除。要了解这个保存的联系人在自己的数据库表,当观察者发送改变通知与系统中的联系人进行检查。
Observer does not provide the information that which contact is added/update/deleted. To get to know this save the contacts in your own DB table and when observer send the change notification check it with system's Contacts.
这篇关于Android的通知时,电话簿更新(内容观察员)的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!