Matt Smith questions

• Searching for music files with mediastore
• Making a boolean true for x seconds when condition is met, then reverting it to false
• Checking if String x equals any of the Strings from String[]
• Checking if a string starts and ends with number characters using regex
• Listening for keywords at all times, like "Ok google" on 4.4 [closed]
• Constantly-on speech recognition listening for just one keyword
• Stop executing further code in Java

Matt Smith answers