CODEWITHSUNDEEP
androidandroid-intent
Ofek Ron
Ofek Ron

Reputation: 8578

Cross Application using of putExtra method of an Intent

I am in process of writing an activity that shows a Google map, and by getting an extra value on the calling intent, placing some overlay on a given geopoint over the map.

What i did was to create a wrapping class to hold (lat,lng) pair and that implements Parcelable, this way i could pass a "geopoint" instance on an Intent to this activity from other activities in other applications.

now what that im stuck at is what should i put as the key value for putting and getting this geopoint?

i could just use it like:

i.putExtra("myGeoPoint", myGeoPoint);

but i am guessing that would be bad practice, I could have a final static String class-member object as the key value, but then i am not 100% sure that i could access it from other activities in other applications...

How is it done correctly?

Upvotes: 0

Views: 257

Answers (1)

CommonsWare
CommonsWare

Reputation: 1007534

but i am guessing that would be bad practice

Well, it has to be a string.

I could have a final static String class-member object as the key value, but then i am not 100% sure that i could access it from other activities in other applications...

It is 100% certain that you cannot "access it from other activities in other applications".

Hence, use a well-known string. Each of those apps can, if desired, save that string in "a final static String class-member object" for its own local use. Or, you can create a small JAR file that all of these projects use that, perhaps among other things, provides a canonical "a final static String class-member object" for them all to refer to.

Upvotes: 2

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