[英]Check if there any changes to realm object
如果結果中的realmObject的值已更改,是否有辦法檢測它?
Account account = mRealmInstance.where(Account.class).equalTo("isLoggedIn", true).findFirst();
account.setName("New Name");
if(account.hasChanged()){ //Is there a realmMethod for this?
}
我認為這就是你要找的東西?
RealmChangeListener<Account> listener = new RealmChangeListener() {
@Override
public void onChange(Account account) {
// changes have been made to Account table
}
}
Account mAccount;
mAccount = mRealmInstance.where(Account.class).equalTo("isLoggedIn", true).findFirst();
if(mAccount != null) {
mAccount.addChangeListener(listener);
//assuming I'm in a transaction here
mAccount.setName("New Name");
}
...
if(mAccount.isValid()) {
mAccount.removeAllChangeListeners();
}
雖然我認為每當Account
表發生更改時都會激活RealmChangeListener
,而不僅僅是在修改此特定對象時。
(編輯:因為Realm 3.1+領域對象監聽器也是細粒度的,因此僅在修改所選帳戶時才修改它)
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