(MineSweeper is a good Android open-source minesweeper game. It may be very helpful for users who are beginners of the Android development network, and it also has certain reference meanings 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 import external fonts for display on the Android platform. 2. Toast with pictures. The following Youwonin36seconds Toast uses a custom layout to display pictures and text. 3. Customize the Button control, you can see whether the mark is a mine, and the button control that displays the number of nearby mines. Beginners can easily learn the commonly used custom control technology in Android development.)