Check if two Bundle objects are equal in Android?

Question

I would like to check if two bundles are equal, is there any way to do that instead of checking them key by key?

Answer 1

Here is one way to test if two Bundles are the same:

• Check their sizes, don't bother if they're not equal
• If both values are Bundle objects use recursion
• Because a value for a key in one can be null, make sure that both values are null and that the key actually exists in two
• Finally compare the matching keys' values

Code:

public boolean equalBundles(Bundle one, Bundle two) {
    if(one.size() != two.size())
        return false;

    Set<String> setOne = new HashSet<>(one.keySet());
    setOne.addAll(two.keySet());
    Object valueOne;
    Object valueTwo;

    for(String key : setOne) {
        if (!one.containsKey(key) || !two.containsKey(key))
            return false;

        valueOne = one.get(key);
        valueTwo = two.get(key);
        if(valueOne instanceof Bundle && valueTwo instanceof Bundle && 
                !equalBundles((Bundle) valueOne, (Bundle) valueTwo)) {
            return false;
        }
        else if(valueOne == null) {
            if(valueTwo != null)
                return false;
        }
        else if(!valueOne.equals(valueTwo))
            return false;
    }

    return true;
}