Android randomly generated verification code

• Android

Android randomly generates verification codes. Android draws irregular verification codes using random numbers to enhance the security of user login or registration. The specific ideas are as follows: on a fixed width and height canvas, draw a fixed number of random numbers and letters, and then draw a fixed number of interference lines. The random number and the color of interference lines are randomly generated, and the style of random number is randomly generated@ H_ 404_ 4@

The interface effect is as follows: @ h_ 404_ 4@

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1. Generate random number code, code. Java: @ h_ 404_ 4@

2. Write layout file, activity_ main.xml:@H_ 404_ 4@

3. Generate random numbers in the main interface and verify the verification code mainactivity.java: @ h_ 404_ 4@

So far, the basic functions have been realized. Download the source code: http://xiazai.jb51.net/201611/yuanma/AndroidSecurityCode (jb51.net). rar@H_ 404_ 4@

The above is the whole content of this article. I hope it will be helpful to your study, and I hope you can support programming tips@ H_ 404_ 4@

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