程序包 ohos.interwork.utils

接口 ParcelableEx

所有已知实现类:

ElementNameEx, IntentAgentEx, PacMapEx, RemoteViewEx

public interface ParcelableEx

Provides an interface for data marshalling across platforms. If your application running in ohos needs to transmit a marshallable object with a process running in another platform, you need to implement the marshallingEx(ohos.utils.Parcel) method to marshal data into the Class name+data format.

Sample code:

 
 public class Example implements ParcelableEx {
     private int data = 0;

     @override
     public void marshallingEx(Parcel out) {
         out.writeString(getClass().getName());
         out.writeInt(data);
         return;
     }
 }
 
 

从以下版本开始:

3

方法概要

限定符和类型	方法	说明
void	marshallingEx(Parcel out)	Writes a ParcelableEx object into a Parcel.
default void	unmarshallingEx(Parcel in)	Unmarshalls this ParcelableEx object from a Parcel.

方法详细资料

marshallingEx

void marshallingEx(Parcel out)
            throws ParcelException

Writes a ParcelableEx object into a Parcel.

参数:

out - Indicates the Parcel object to which the ParcelableEx object will be written.

抛出:

ParcelException - Throws this exception if the operation fails.

从以下版本开始:

3

unmarshallingEx

default void unmarshallingEx(Parcel in)
                      throws ParcelException

Unmarshalls this ParcelableEx object from a Parcel.

To achieve successful data unmarshalling, you must provide a no-argument constructor for the class that inherits the ParcelableEx interface and write the class name to Parcel in the marshallingEx(ohos.utils.Parcel) method.

参数:

in - Indicates the Parcel object from which the ParcelableEx object will be unmarshaled.

抛出:

ParcelException - Throws this exception if the operation fails.

从以下版本开始:

3