Isn't android's Bundle functionally equivalent with a Map?

android, bundle, java

Solution

Is not the Bundle equivalent of a Map, where you have String keys and Object values?

First, a `Map` does not necessarily have `String` keys.

Second, while a `Map` can hold arbitrary objects, it cannot do so in a typesafe fashion. IOW, if you want the `Map` to hold strings, integers, and so forth, you will need to keep casting the results of `get()` calls, because your `Map` would have to be `Map<String, Object>`.

Third, `Bundle` implements `Parcelable`, which is very important for Android IPC. `Map` is an interface and does not extend `Parcelable`.

Can it be theoretically converted to a mapping?

Um, sure, though I fail to see what the benefit would be.

What is the way to do this?

Iterate over the `keySet()` and call `get()` on the `Bundle` for each key, putting the result into a `Map<String, Object>`.

Problem

Original source