Front Runner

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there is NO reason to use sticky broadcasts for communication
within your own app. In fact, I'll go farther and say you just should
not do this. Sticky broadcasts are GLOBAL to the system. And because
of this, performing a sticky broadcast is multiple orders of magnitude
slower than just implementing direct calls within your own app (IPC
for each receiver to register, IPC to the system to send it, IPC from
the system back to your app to deliver it, marshalling and
unmarshalling of all the data within the Intent over both IPCs).

More than that, there is NO protection on them, so any other
application can watch your sticky broadcasts, or even send their own
values back to you. (Btw, this is also issue with using any
broadcasts within your own app. Broadcasts are really there for cross-
application communication. It is just far more efficient and easier
to implement these things within an app by having a callback
interface.

You do have the option of using a normal broadcast rather than a
sticky broadcast. You'll notice that there are basically no sticky
broadcasts used by the system, at least that you see in the public
APIs. In fact there are some places they are used internally, but
even those are slowly going away as we discover security holes with
them because there is no way to protect who can receive them.

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