Solution to the problem of user permission prohibition error when Android scans QR code
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Android
Solution to the problem of user permission prohibition error when Android scans QR code
When I wrote a program to scan QR code with zbardecoder.jar, I did realize the scanning function. The team leader said that if the user prohibits calling the camera, the program can't crash. As a result, I crashed as soon as I ran. I found it on the Internet and it can be solved in this way.
When calling mcameramanager. Opendriver(), rewrite the try.. catch statement and create a new dialog to prompt the user for information. Remember to end with return outside the catch statement.
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