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AIDL (1.5 Change Feature)
Implementing IPC Using AIDL : Pass by value Parameters using Parcelables
If you have a class that you would like to send from one process to another through an AIDL
interface, you can do that. You must ensure that the code for your class is available to the other
side of the IPC. Generally, that means that you're talking to a service that you started.
There are five parts to making a class support the Parcelable protocol:
1. Make your class implement the Parcelable interface.
2. Implement the method public void writeToParcel(Parcel out) that takes the current state of
the object and writes it to a parcel.
3. Implement the method public void readFromParcel(Parcel in) that reads the value in a
parcel into your object.
4. Add a static field called CREATOR to your class which is an object implementing the
Parcelable.Creator interface.
5. Last but not least, create an aidl file that declares your parcelable class (as shown below). If
you are using a custom build process, do not add the aidl file to your build. Similar to a
header file in C, the aidl file isn't compiled.
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