Android 包裹数组列表不工作
我有一个自定义对象和一个数组列表,当我试图检索一个可包裹数组列表时,我得到一个空异常。自定义对象中的代码:Android 包裹数组列表不工作,android,parcelable,Android,Parcelable,我有一个自定义对象和一个数组列表,当我试图检索一个可包裹数组列表时,我得到一个空异常。自定义对象中的代码: public class Patient implements Parcelable { private String fullName; private String id; // this is the Key of the Table Patient private String address; private int age; private String telephone;
public class Patient implements Parcelable {
private String fullName;
private String id; // this is the Key of the Table Patient
private String address;
private int age;
private String telephone;
private String Doctor;
private String lastVisit;
private String healthStatus;
//constructor
public Patient(String fullName, String id, String address, int age, String telephone, String doctor, String lastVisit, String healthStatus) {
this.fullName = fullName;
this.id = id;
this.address = address;
this.age = age;
this.telephone = telephone;
Doctor = doctor;
this.lastVisit = lastVisit;
this.healthStatus = healthStatus;
}
//Key
public String getId() {
return id;
}
public String getAddress() {
return address;
}
public int getAge() {
return age;
}
public String getTelephone() {
return telephone;
}
public String getDoctor() {
return Doctor;
}
public String getFullName() {
return fullName;
}
public String getLastVisit() {
return lastVisit;
}
public String getHealthStatus() {
return healthStatus;
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeInt(age);
dest.writeString(fullName);
dest.writeString(address);
dest.writeString(id);
dest.writeString(telephone);
dest.writeString(Doctor);
dest.writeString(String.valueOf(lastVisit));
dest.writeString(healthStatus);
}
public static final Parcelable.Creator<Patient> CREATOR = new Parcelable.Creator<Patient>() {
public Patient createFromParcel(Parcel in) {
return new Patient(in);
}
public Patient[] newArray(int size) {
return new Patient [size];
}
};
private Patient(Parcel in) {
age = in.readInt();
fullName = in.readString();
address = in.readString();
id = in.readString();
telephone = in.readString();
Doctor = in.readString();
fullName = in.readString();
healthStatus = in.readString();
lastVisit = in.readString();
}
}
出于某种原因,下一个活动的列表为空,我在尝试使用它时遇到异常
我遵循文档,但我无法找出哪里是错误的部分。此外,第一个活动中的列表中充满了数据
谢谢你的帮助 您正在将列表放入意图中,但在第二个活动中尝试从
savedInstanceState
检索列表。您需要从意图中检索列表
patientList = getIntent().getParcelableArrayList("patientList"); // May require a cast if you partient list is a specific type
您正在将列表放入意图中,但在第二个活动中尝试从
savedInstanceState
检索它。您需要从意图中检索列表
patientList = getIntent().getParcelableArrayList("patientList"); // May require a cast if you partient list is a specific type
您正在将列表放入意图中,但在第二个活动中尝试从
savedInstanceState
检索它。您需要从意图中检索列表
patientList = getIntent().getParcelableArrayList("patientList"); // May require a cast if you partient list is a specific type
您正在将列表放入意图中,但在第二个活动中尝试从
savedInstanceState
检索它。您需要从意图中检索列表
patientList = getIntent().getParcelableArrayList("patientList"); // May require a cast if you partient list is a specific type
好的,谢谢,现在我知道了:在偏移量360处解组未知类型代码7864421。解组时,您正在读取
fullName
两次。检查这一行fullName=in.readString()代码>有两次。是的,我知道我以前见过,谢谢你的帮助!好的,谢谢,现在我知道了:在偏移量360处解组未知类型代码7864421。解组时,您正在读取fullName
两次。检查这一行fullName=in.readString()代码>有两次。是的,我知道我以前见过,谢谢你的帮助!好的,谢谢,现在我知道了:在偏移量360处解组未知类型代码7864421。解组时,您正在读取fullName
两次。检查这一行fullName=in.readString()代码>有两次。是的,我知道我以前见过,谢谢你的帮助!好的,谢谢,现在我知道了:在偏移量360处解组未知类型代码7864421。解组时,您正在读取fullName
两次。检查这一行fullName=in.readString()代码>有两次。是的,我知道我以前见过,谢谢你的帮助!