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iOS

Alfonso Lagrasta
Alfonso Lagrasta
7,551 Points
Posted by Alfonso Lagrasta
Alfonso Lagrasta
7,551 Points

Adding dfferent sound to every prediction of the Crystal Ball app.

Hi there, I'm trying to add not only one single sound but as many different sounds as the number of predictions in the Crystal Ball app, more precisely I'm trying to assign a sound to every different prediction then recalling both the predction and that particular sound associated to it (like the sound of a voice reading that prediction) randomly in the ViewController. I'm still struggling with it though. Any ideas? Thank you.

Amit Bijlani Pasan Premaratne

1 Answer

Joseph Potts
Joseph Potts
11,187 Points
Joseph Potts
Joseph Potts
11,187 Points

Change each sound's name to a number, such as 0.mp3 or 6.mp3 and use arc4random() method to generate a random number in a given range, then use that number as a .mp3 string.

Alfonso Lagrasta
Alfonso Lagrasta
7,551 Points
Alfonso Lagrasta
Alfonso Lagrasta
7,551 Points

Thank you Joseph. How can I link a sound to a specific string of prediction, like a sound with a voice reading that particular string of prediction? So when i call the predicitons randomly I'll call that string with excatly that sound.

Joseph Potts
Joseph Potts
11,187 Points

You could use a dictionary to set multiple sounds to a prediction (string) as an array. In this case, the key would be the prediction string and the value would be an array of strings that contain the sound name.

Since it's an array, you can use the same random number principle to pick a random item from the array and use that (the string which contains the name of the mp3 file) to play a random sound.

Alfonso Lagrasta
Alfonso Lagrasta
7,551 Points
Alfonso Lagrasta
Alfonso Lagrasta
7,551 Points

Thanks again. Can you write a sample code to that?

Joseph Potts
Joseph Potts
11,187 Points 
NSDictionary *predicts = @{"A prediction": @[@"play.mp3", @"hello.mp3", @"smooth.mp3"]};
[[predicts objectForKey:"A prediction"] objectAtIndex: random_number];