问题：
Android Realm-更新RealmList触发IllegalArgumentExcure
田彬郁
我正在尝试更新现有的RealmObject（IncidentCard），其中包含IncidentPhoto类型的RealmList。只要我不尝试更新RealmList，对象就不会出现任何问题，当我包含列表时，我会收到以下错误消息：
E/AndroidRuntime: FATAL EXCEPTION: main
E/AndroidRuntime: Process: com.trollvik.android.incidents247, PID: 31923
E/AndroidRuntime: java.lang.IllegalArgumentException: Each element of 'value' must be a valid managed object.
E/AndroidRuntime: at io.realm.IncidentCardRealmProxy.setPhotos(IncidentCardRealmProxy.java:218)
E/AndroidRuntime: at com.trollvik.android.incidents247.activities.EditCardActivity.saveIncidentCard(EditCardActivity.java:155)
E/AndroidRuntime: at com.trollvik.android.incidents247.activities.EditCardActivity$1.onClick(EditCardActivity.java:95)
E/AndroidRuntime: at android.view.View.performClick(View.java:5197)
E/AndroidRuntime: at android.view.View$PerformClick.run(View.java:20926)
E/AndroidRuntime: at android.os.Handler.handleCallback(Handler.java:739)
E/AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:95)
E/AndroidRuntime: at android.os.Looper.loop(Looper.java:145)
E/AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:5944)
E/AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method)
E/AndroidRuntime: at java.lang.reflect.Method.invoke(Method.java:372)
E/AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1388)
E/AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1183)
这是IncidentCard类：
public class IncidentCard extends RealmObject {
@PrimaryKey
private long id;
private String timestamp;
private String type;
private RealmList<IncidentPhoto> photos;
public IncidentCard() {
}
public IncidentCard(long id, String timestamp, String type){
this.id = id;
this.timestamp = timestamp;
this.type = type;
}
public IncidentCard(long id, String timestamp, String type, RealmList<IncidentPhoto> photos){
this.id = id;
this.timestamp = timestamp;
this.type = type;
this.photos = photos;
}
public long getId() {
return this.id;
}
public void setId(long id) {
this.id = id;
}
public String getTimestamp(){
return this.timestamp;
}
public void setTimestamp(String timestamp) {
this.timestamp = timestamp;
}
public String getType(){
return this.type;
}
public void setType(String type){
this.type = type;
}
public RealmList<IncidentPhoto> getPhotos() {
return this.photos;
}
public void setPhotos(RealmList<IncidentPhoto> photos) {
this.photos = photos;
}
}
这是IncidentPhoto类：
public class IncidentPhoto extends RealmObject {
private String photoPath;
public IncidentPhoto() {
}
public IncidentPhoto(String photoPath) {
this.photoPath = photoPath;
}
public String getPhotoPath(){
return this.photoPath;
}
public void setPhotoPath(String photoPath){
this.photoPath = photoPath;
}
}
要查询域数据库，我创建了这个helper类：
public class IncidentDbHelper {
private Realm realm;
public IncidentDbHelper(Context context) {
realm = Realm.getInstance(context);
}
public void setObject(IncidentCard incidentCard) {
realm.beginTransaction();
IncidentCard incident = realm.copyToRealmOrUpdate(incidentCard);
realm.commitTransaction();
}
public IncidentCard getObject(Long id) {
return realm.where(IncidentCard.class).equalTo("id", id).findFirst();
}
public void close(){
if (realm != null) {
realm.close();
}
}
}
当我添加新的事件卡时，我将此活动称为：
public class NewCardActivity extends AppCompatActivity {
private static final int REQUEST_IMAGE_CAPTURE = 1;
private static final String INSTANCE_STATE = "currentPhotoPath";
private static final String INSTANCE_STATE_LIST = "currentPhotoList";
private Context mContext;
private IncidentCard mIncidentCard;
private IncidentDbHelper mDbHelper;
private IncidentCardId mIncidentId;
private IncidentCardTimestamp mIncidentTimestamp;
private RealmConverter mRealmConverter;
private Resources mRes;
private PhotoPath mPath;
private String mCurrentPhotoPath;
private ArrayList<String> mCurrentPhotoList;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mContext = this;
mDbHelper = new IncidentDbHelper(mContext);
mIncidentCard = new IncidentCard();
mRealmConverter = new RealmConverter();
mCurrentPhotoList = new ArrayList<String>();
mIncidentId = new IncidentCardId();
mIncidentTimestamp = new IncidentCardTimestamp();
mRes = getResources();
mPath = new PhotoPath();
// If savedInstanceState is empty, ignore this code.
if(savedInstanceState != null){
mCurrentPhotoPath = savedInstanceState.getString(INSTANCE_STATE);
mCurrentPhotoList = savedInstanceState.getStringArrayList(INSTANCE_STATE_LIST);
}
}
protected void saveIncidentCard(){
Realm realm = Realm.getInstance(this);
Spinner spinner = (Spinner) findViewById(R.id.content_new_card_type);
String incidentType = spinner.getSelectedItem().toString();
realm.beginTransaction();
mIncidentCard.setId(mIncidentId.getNewId());
mIncidentCard.setTimestamp(mIncidentTimestamp.getNewTimestamp());
mIncidentCard.setType(incidentType);
mIncidentCard.setPhotos(mRealmConverter.toRealmList(mCurrentPhotoList));
realm.commitTransaction();
mDbHelper.setObject(mIncidentCard);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_new_card, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.menu_new_photo:
dispatchTakePictureIntent();
default:
// If we got here, the user's action was not recognized.
// Invoke the superclass to handle it.
return super.onOptionsItemSelected(item);
}
}
private void dispatchTakePictureIntent() {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
File imageFile = null;
// Ensure that there's a camera activity to handle the intent
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
// Create the File where the photo should go
try {
imageFile = mPath.createImageFile();
mCurrentPhotoPath = imageFile.getAbsolutePath();
} catch (java.io.IOException e) {
Log.e(TAG, e.toString());
}
// Continue only if the File was successfully created
if (imageFile != null) {
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT,
Uri.fromFile(imageFile.getAbsoluteFile()));
startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
}
}
}
@Override
public void onSaveInstanceState(Bundle savedInstanceState) {
super.onSaveInstanceState(savedInstanceState);
savedInstanceState.putString(INSTANCE_STATE, mCurrentPhotoPath);
savedInstanceState.putStringArrayList(INSTANCE_STATE_LIST, mCurrentPhotoList);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
mCurrentPhotoList.add(mCurrentPhotoPath);
}
}
@Override
protected void onDestroy() {
super.onDestroy();
mDbHelper.close();
}
}
当我捕获新照片时，我将以前捕获的照片的路径保存在String类型的ArrayList中。在我设置IncidentCard对象的路径列表之前，我将列表转换为RealmList。这部分似乎工作得很好。
尝试在EditCardActivity中保存现有对象后出现问题：
public class EditCardActivity extends AppCompatActivity {
private static final String INTENT_EXTRA = "EXTRA_INCIDENT_ID";
private static final int REQUEST_IMAGE_CAPTURE = 2;
private static final String INSTANCE_STATE = "currentPhotoPath";
private static final String INSTANCE_STATE_LIST = "currentPhotoList";
private Context mContext;
private Long mIncidentId;
private IncidentCard mIncidentCard;
private IncidentDbHelper mDbHelper;
private IncidentCardTimestamp mIncidentTimestamp;
private RealmConverter mRealmConverter;
private Resources mRes;
private PhotoPath mPath;
Spinner mSpinnerType;
private String mCurrentPhotoPath;
private ArrayList<String> mCurrentPhotoList;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mRealmConverter = new RealmConverter();
mContext = this;
mDbHelper = new IncidentDbHelper(mContext);
mIncidentCard = new IncidentCard();
mCurrentPhotoList = new ArrayList<String>();
mIncidentTimestamp = new IncidentCardTimestamp();
mRes = getResources();
mPath = new PhotoPath();
// If savedInstanceState is empty, ignore this code.
if(savedInstanceState != null){
mCurrentPhotoPath = savedInstanceState.getString(INSTANCE_STATE);
mCurrentPhotoList = savedInstanceState.getStringArrayList(INSTANCE_STATE_LIST);
}
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
saveIncidentCard();
finish();
}
});
// Get Incident ID passed from Main Activity
Intent intent = getIntent();
mIncidentId = intent.getLongExtra(INTENT_EXTRA, 0);
mIncidentCard = mDbHelper.getObject(mIncidentId);
mTextViewId = (TextView) findViewById(R.id.content_edit_card_id);
mSpinnerType = (Spinner) findViewById(R.id.content_edit_card_type);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_dropdown_item, items);
mSpinnerType.setAdapter(adapter);
String compareValue = mIncidentCard.getType();
if (!compareValue.equals(null)) {
int spinnerPosition = adapter.getPosition(compareValue);
mSpinnerType.setSelection(spinnerPosition);
}
mCurrentPhotoList = mRealmConverter.toArrayList(mIncidentCard.getPhotos());
}
protected void saveIncidentCard(){
Realm realm = Realm.getInstance(this);
Spinner spinner = (Spinner) findViewById(R.id.content_edit_card_type);
String incidentType = spinner.getSelectedItem().toString();
realm.beginTransaction();
mIncidentCard.setTimestamp(mIncidentTimestamp.getNewTimestamp());
mIncidentCard.setType(incidentType);
mIncidentCard.setPhotos(mRealmConverter.toRealmList(mCurrentPhotoList));
realm.commitTransaction();
mDbHelper.setObject(mIncidentCard);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_edit_card, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.menu_edit_photo:
dispatchTakePictureIntent();
default:
// If we got here, the user's action was not recognized.
// Invoke the superclass to handle it.
return super.onOptionsItemSelected(item);
}
}
private void dispatchTakePictureIntent() {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
File imageFile = null;
// Ensure that there's a camera activity to handle the intent
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
// Create the File where the photo should go
try {
imageFile = mPath.createImageFile();
mCurrentPhotoPath = imageFile.getAbsolutePath();
} catch (java.io.IOException e) {
Log.e(TAG, e.toString());
}
// Continue only if the File was successfully created
if (imageFile != null) {
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT,
Uri.fromFile(imageFile.getAbsoluteFile()));
startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
}
}
}
@Override
public void onSaveInstanceState(Bundle savedInstanceState) {
super.onSaveInstanceState(savedInstanceState);
savedInstanceState.putString(INSTANCE_STATE, mCurrentPhotoPath);
savedInstanceState.putStringArrayList(INSTANCE_STATE_LIST, mCurrentPhotoList);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
mCurrentPhotoList.add(mCurrentPhotoPath);
}
}
@Override
protected void onDestroy() {
super.onDestroy();
mDbHelper.close();
}
}
如果我把mIncidentCard注释掉。setPhotos（）一切似乎都正常，但当我尝试将照片设置为IncidentCard对象时，会触发IllegalArgumentException。
这是我创建的将ArrayList转换为RealmList的方法：
public RealmList<IncidentPhoto> toRealmList(ArrayList<String> arrayList){
mRealmList = new RealmList<IncidentPhoto>();
for (int i = 0; i < arrayList.size(); i++){
IncidentPhoto incidentPhoto = new IncidentPhoto();
incidentPhoto.setPhotoPath(arrayList.get(i));
mRealmList.add(incidentPhoto);
}
return mRealmList;
}
我已经为此挣扎了一段时间，我不明白我做错了什么，所以任何帮助都将不胜感激。
Realm异常值不是有效的托管对象RealmJavaDoc
共有1个答案
连志义
问题是，当调用setters设置RealmList时，列表中的每个元素都必须由Realm管理。
这里有一个类似的问题：向RealmList添加独立对象
您可以按如下方式修改ToRealList：
public RealmList<IncidentPhoto> toRealmList(Realm realm, ArrayList<String> arrayList) {
mRealmList = new RealmList<IncidentPhoto>();
for (int i = 0; i < arrayList.size(); i++){
// Create a IncidentPhoto object which is managed by Realm.
IncidentPhoto incidentPhoto = realm.createObject(IncidentPhoto.class);
incidentPhoto.setPhotoPath(arrayList.get(i));
mRealmList.add(incidentPhoto);
}
return mRealmList;
}
或
public RealmList<IncidentPhoto> toRealmList(Realm realm, ArrayList<String> arrayList) {
mRealmList = new RealmList<IncidentPhoto>();
for (int i = 0; i < arrayList.size(); i++){
IncidentPhoto incidentPhoto = new IncidentPhoto();
incidentPhoto.setPhotoPath(arrayList.get(i));
// Copy the standalone object to Realm, and get the returned object which is managed by Realm.
incidentPhoto = realm.copyToRealm(incidentPhoto);
mRealmList.add(incidentPhoto);
}
return mRealmList;
}
类似资料：
-
userNotesTable： 用户提醒表： 插入触发器： 更新触发器： 这是数据库的当前代码，以及提醒表的特定触发器。我遇到的困难是，从提醒表中的specific中的user notes表中选择特定的名称和额外的内容，所有这些都在更新触发器中。 插入时，和会被插入到提醒和搜索表中，但我希望能够使用特定名称和用户注释表中的额外内容更新搜索表，这可能吗？
-
问题内容： 在oracle中，我可以指定列，这将引发触发器的触发： 现在，我想执行以下操作：当 只 更新 一 列时，我不希望触发触发器。这怎么可能？ 我可以列出除那一列之外的所有列，该列不应引起触发器的触发。对于具有许多列的表而言，这非常麻烦。 另一种方法是使用像这样的UPDATING函数： 但是，如果我立即更改了COL1 和 COL3，则该语句的计算结果为false。那不是我想要的，因为我只想更
-
问题内容： 我目前正在使用基于Web的Twitter客户端，因此我使用了angular.js，node.js和socket.io。我通过socket.io将新的推文推到我的客户端，服务在其中等待新的推文。当一条新的推文到来时，该服务通过$ broadcast发送事件。 在我的控制器中是一个事件侦听器，其中传入的tweet在单独的函数中进行处理。此功能只是将新的推文推入我的推文范围。 现在，我的问题
-
我对机会产品（i.e.line项）使用存储在Opp本身中的opp术语进行计算（例如：OLI. RecurringAmt=OPP. Term*OLI. UniPRICE*OLI. QUANTITY） 如果Opp中的术语（整数）的值发生变化，则需要手动更新每个OLI中的数学值。我建议在Opp上使用触发器，以便在术语更改时进行此更新。 问题是：由于Opp中的金额字段由SFDC自动计算为每个相关行项目的单
-
问题内容： 我是SQL的新手，有人可以帮助我修复触发器问题吗？ 我有这两个表（“评论”和“报价”），我想更新“评论”表，然后在“插入”，“更新”和“删除”中获取要约表中的数据。如果更新成功，我想使用ReviewId和ReviewDate更新商品表。 我正在使用Azure提供的SQL Server。 UserKey和Asin是唯一的值，所以这就是我用来链接这些表的东西。我将非常感谢您的帮助！ 桌子：
-
问题内容： 我正在尝试为我的表创建一个触发器，该触发器根据某个标志设置为“ Y”的时间自动添加发布日期 我没有创建触发器的丰富经验，但到目前为止，这是我所拥有的 更新列时出现此错误 触发器“ USER.ADD_CREATE_DT”无效且重新验证失败 有任何想法吗？ 谢谢 问题答案： 使用WHEN子句： 或使用IF： 在这种情况下，WHEN更合适，更有效。