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Write the activation code of the following android application activity in order that when a user presses the ADD button the sum of the two

Write the activation code of the following android application activity in order that when a user presses the ADD button the sum of the two numbers in (txtnum1, txtnum2) will appear in (txtviewresult). Also, the activity should accept float numbers.

(Hint: to parse String to Float use Float.parseFloat)

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