CODEWITHSUNDEEP
androidandroid-source
Androiduser
Androiduser

Reputation: 37

Cannot understand this JAVA statement in AOSP IPackageManager.java

While tracing the install procedure on AOSP I came across these lines and I am unable to understand what they do. (I am not a complete novice in java programming, neither am I a fully professional java developer) 

@Override public void installPackage(java.lang.String originPath, android.content.pm.IPackageInstallObserver2 observer, int flags, java.lang.String installerPackageName, android.content.pm.VerificationParams verificationParams, java.lang.String packageAbiOverride) throws     android.os.RemoteException
{
android.os.Parcel _data = android.os.Parcel.obtain();
android.os.Parcel _reply = android.os.Parcel.obtain();
try {
_data.writeInterfaceToken(DESCRIPTOR);
_data.writeString(originPath);
_data.writeStrongBinder((((observer!=null))?(observer.asBinder()):(null)));
_data.writeInt(flags);
_data.writeString(installerPackageName);
if ((verificationParams!=null)) {
_data.writeInt(1);
verificationParams.writeToParcel(_data, 0);
}
else {
_data.writeInt(0);
}
_data.writeString(packageAbiOverride);
mRemote.transact(Stub.TRANSACTION_installPackage, _data, _reply, 0);
_reply.readException();
}
finally {
_reply.recycle();
_data.recycle();
}
}

In this code above what do the lines inside the try block work? Especially what does the line _data.writeStrongBinder... do? Any pointers to help understand this code is appreciated!

Upvotes: 0

Views: 118

Answers (1)

Leo Nawroth
Leo Nawroth

Reputation: 803

_data is an Parcel object. You can look at the API documentation here

ps.: You could install Codota. I actually can click at your code and see the documentation. So you kinda answered your own question already ;)

Upvotes: 1

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