更新:
目前,我无法创建任何新的基于Realm的对象。不管我是否清理,重建等,每一个都失败,并返回相同的错误。为了测试这一点,我创建了一个新类“ Sample”:
package com.reddragon.intouch.model;
import java.util.UUID;
import io.realm.RealmObject;
import io.realm.annotations.PrimaryKey;
public class Sample extends RealmObject {
@PrimaryKey
private String id;
private String sampleField;
public Sample() {
this(UUID.randomUUID().toString());
}
private Sample(String id) {
this.id=id;
}
public String getId(){
return id;
}
public String getSampleField() {
return sampleField;
}
public void setSampleField(String sampleField) {
this.sampleField = sampleField;
}
}
然后在MainActivity.java中,尝试创建一个新实例:
try {
MediaDataMgr.get().addSample(new Sample());
Timber.d("Lifecycle: was able to add Sample");
} catch (Exception e) {
Timber.d("Got exception instantiating Sample: %s", e.getMessage());
}
此addSample()
方法对本项目中两个可以使用 DO 的类使用类似的方法:
public String addSample(Sample s) {
boolean success = true;
Sample sample;
Realm realm;
String retVal = null;
boolean mainThread = Thread.currentThread().equals(Looper.getMainLooper().getThread());
if (mainThread) {
realm = mUIThreadRealm;
} else {
realm = Realm.getDefaultInstance();
}
try {
realm.beginTransaction();
sample = realm.createObject(Sample.class,s.getId()); //<--CRASH!!!!
sample.setSampleField(s.getSampleField());
} catch (Exception e ) {
Timber.d( "Exception adding a Sample: %s", e.getMessage());
success = false;
} finally {
if ( success ) {
realm.commitTransaction();
retVal = s.getId();
} else {
realm.cancelTransaction();
}
if (!mainThread) {
realm.close();
}
}
return retVal;
}
我现在完全沉迷于这个项目。
更新:
我在我的应用程序中完全注释了对“联系人”对象的所有引用,然后从我的项目中删除了Contact.java。我进行了完整的重建,然后运行它,一切正常。
然后,我创建了一个新类Contact.java,并输入了与以前相同的字段等,并在项目的其余部分中对它进行了未注释的引用。我进行了重建并运行-并得到了相同的错误。
然后我将Contact类的名称重构为 ContactSharingInfo ,以为某个类名称可能发生冲突。重建并运行,然后再次-同样的错误,这次引用了新的类名。
原始帖子:
我正在使用gradle插件和注释处理器5.9.1。我创建了一个新类(“ Contact.java”),最初该类工作正常。然后,我调整了类(删除了几个字段,添加了一个新字段),然后开始收到此错误。我已经在Samsung S7 Edge(API 26)以及一些仿真器上对此进行了测试。同样的问题。
我已经进行了各种清理,重建,使缓存无效和重新启动等方式。没有帮助。我检查了错误#3819和#4579,但是那里没有任何帮助。我已禁用即时运行。没有帮助。
堆栈跟踪为:
realmSet$id:111, com_reddragon_intouch_model_ContactRealmProxy (io.realm)
<init>:30, Contact (com.reddragon.intouch.model)
<init>:26, Contact (com.reddragon.intouch.model)
<init>:84, com_reddragon_intouch_model_ContactRealmProxy (io.realm)
newInstance:96, DefaultRealmModuleMediator (io.realm)
createObjectInternal:1048, Realm (io.realm)
createObject:1024, Realm (io.realm)
addContact:877, MediaDataMgr (com.reddragon.intouch.model)
导致此问题的代码(我在RealData集中访问的MediaDataMgr类中的addContact())是:
public String addContact(Contact c, int status) {
boolean success = true;
Contact contact;
Realm realm;
String retVal = null;
boolean mainThread = Thread.currentThread().equals(Looper.getMainLooper().getThread());
if (mainThread) {
realm = mUIThreadRealm;
} else {
realm = Realm.getDefaultInstance();
}
try {
realm.beginTransaction();
contact = realm.createObject(Contact.class,c.getId()); // <--CRASH HAPPENS HERE
contact.setEmailAddress(c.getEmailAddress());
contact.setDisplayName(c.getDisplayName());
contact.setStatus(status);
} catch (Exception e ) {
Timber.d( "Exception adding a contact: %s", e.getMessage());
success = false;
} finally {
if ( success ) {
realm.commitTransaction();
retVal = c.getId();
} else {
realm.cancelTransaction();
}
if (!mainThread) {
realm.close();
}
}
return retVal;
}
并且堆栈跟踪中引用的Contact类是:
public class Contact extends RealmObject implements CardListable {
@PrimaryKey
private String id;
private String displayName;
private String emailAddress;
private String pathToProfilePic; // This will always be a URI, but we have to store it as a string and convert to URI at runtime.
@Ignore
private int status = STATUS_UNKNOWN;
public Contact() {
this(UUID.randomUUID().toString());
}
private Contact(String id) {
this.id = id;
}
public String getId(){
return id;
}
public String getDisplayName() {
return displayName;
}
public void setDisplayName(String displayName) {
this.displayName = displayName;
}
public String getEmailAddress() {
return emailAddress;
}
public void setEmailAddress(String emailAddress) {
this.emailAddress = emailAddress;
}
public int getStatus() {
return status;
}
public void setStatus(int status) {
this.status = status;
}
public String getPathToProfilePic() {
return pathToProfilePic;
}
public void setPathToProfilePic(String pathToProfilePic) {
this.pathToProfilePic = pathToProfilePic;
}
public String getFirstLineDesc() {
return displayName;
}
public String getSecondLineDesc() {
return emailAddress;
}
}
在调试com_reddragon_intouch_model_ContactRealmProxy.java类时,我发现发生异常是因为调用方法public String realmSet$id()
时变量'proxyState'为空:
public void realmSet$id(String value) {
if (proxyState.isUnderConstruction()) { //<-- CRASH HAPPENS HERE
// default value of the primary key is always ignored.
return;
}
proxyState.getRealm$realm().checkIfValid();
throw new io.realm.exceptions.RealmException("Primary key field 'id' cannot be changed after object was created.");
}
这使我相信realm$injectObjectContext()
中的proxyState的初始化没有被调用。
使用这种创建新对象的方法,可以与该项目中的其他两个类一起正常工作,并且我验证了realm$injectObjectContext()
IS 被调用了。这是与Media.java类(有效)相同的构造类型的堆栈跟踪:
realm$injectObjectContext:105, com_reddragon_intouch_model_MediaRealmProxy (io.realm)
<init>:52, Media (com.reddragon.intouch.model)
<init>:49, Media (com.reddragon.intouch.model)
<init>:99, com_reddragon_intouch_model_MediaRealmProxy (io.realm)
newInstance:99, DefaultRealmModuleMediator (io.realm)
createObjectInternal:1048, Realm (io.realm)
createObject:1024, Realm (io.realm)
addMedia:267, MediaDataMgr (com.reddragon.intouch.model)
因此,有关Contact类的代码的生成方式必须与其他有效的方式有所不同-并且“某些情况”使Realm无法调用该方法。
该怎么办?
答案 0 :(得分:0)
解决方案:
就我而言,我是Lint重构的不知情的受害者。事实证明,我在类中运行了一些Lint进程,建议的更改之一是将某些构造函数更改为私有。显然,在构造函数中采用默认args的模型类中,Realm不喜欢这样做。因此,例如Contact.java类具有以下构造函数:
public class Contact extends RealmObject implements CardListable {
@PrimaryKey
private String id;
private String displayName;
private String emailAddress;
private String pathToProfilePic; // This will always be a URI, but we have to store it as a string and convert to URI at runtime.
@Ignore
private int status = STATUS_UNKNOWN;
public Contact() {
this(UUID.randomUUID().toString());
}
private Contact(String id) { //<--NOTE PRIVATE CONSTRUCTOR
this.id = id;
}
更改为此:
public Contact() {
this(UUID.randomUUID().toString());
}
public Contact(String id) { //<--NOTE THIS IS NOW PUBLIC
this.id = id;
}
并执行清理+重建解决了该问题。