android aidl import

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南笙
南笙 2021-01-18 14:54

I\'m trying to import android.content.Context to AIDL file but eclipse doesn\'t recognize it..

here\'s my code:

package nsip.net;

import android.con         


        
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  • 2021-01-18 15:17

    Using android.content.Context isn't going to work since it doesn't implement android.os.Parcelable.

    However - ff you have a class (MyExampleParcelable for instance) that you want to transfer in an AIDL interface (& that actually implements Parcelable) you create an .aidl file, MyExampleParcelable.aidl in which you write:

    package the.package.where.the.class.is;
    
    parcelable MyExampleParcelable;
    


    Now, unless you desperately want to talk across processes you should consider local services.

    Edit(slightly more helpful):

    Is this a local service (i.e. it will only be used inside your own application & process)? In these cases it's usually just better to implement a binder and return that directly.

    public class SomeService extends Service {
        ....
        ....
        public class SomeServiceBinder extends Binder {
            public SomeService getSomeService() {
                return SomeService.this;
            }
        }
    
        private final IBinder mBinder = new SomeServiceBinder();
    
        @Override
        public IBinder onBind(Intent intent) {
            return mBinder;
        }
    
        public void printToast(Context context, String text) {
            // Why are you even passing Context here? A Service can create Toasts by it self.
            ....
            ....
        }
        // And all other methods you want the caller to be able to invoke on
        // your service.
    }
    

    Basically, when the Activity has bound to your service it will simply cast the resulting IBinder to SomeService.SomeServiceBinder, call SomeService.SomeServiceBinder#getSomeService() - and bang, access to the running Service instance + you can call stuff in its API.

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