(Minesweeper is a good Android open-source minesweeping game, which may be of great help to netizens who have just come into contact with Android development network, and also has a certain reference significance for java game development. The game mainly has the following technologies worth learning: 1. Personalized fonts. The scorer uses LED fonts, which can help us how to import external fonts and display them on the Android platform. 2. toast with pictures, you win in less than 36 seconds. This toast adopts a custom layout, which can display pictures and text. 3. customize the button control to check whether the mark is a mine and to display the number of nearby mines. Beginners can easily learn the custom control technology commonly used in Android development.)