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Splash Screens Điều đầu tiên người dùng nhìn thấy của một ứng dụng là màn hình splash của nó. Như câu ngạn ngữ nói, "Bạn chỉ có được một cơ hội để tạo ấn tượng đầu tiên", vì vậy điều quan trọng là màn hình của bạn đại diện cho ứng dụng của bạn một cách thích hợp. Mặc dù người dùng chỉ nhận được một ấn tượng đầu tiên của ứng dụng, màn hình splash xuất hiện mỗi khi ứng dụng bắt đầu, vì vậy điều quan trọng là nó có một tác động tích cực mỗi khi. | Part IV Specific Techniques In this Part Chapter 19 Splash Screens Chapter 20 Printing Chapter 21 Threading Chapter 22 Reflection Chapter 23 Memory Management Splash Screens The first thing a user sees of an application is its splash screen. As the adage says You only get one chance to make a first impression so it s important that your splash screen represent your application appropriately. Though the user only gets one first impression of your application the splash screen appears every time the application starts so it s important that it has a positive impact each time the user sees it. A typical splash screen displays some basic information about the application such as its name version number and copyright information. Splash screens often provide contact information so that users can get technical support if necessary. In addition to giving the user a little information a splash screen gives the user something to look at while the application loads. At this point the application might look for all sorts of resources such as databases files special devices network connections remotely mounted drives Web Services and so forth. It can connect to databases and open files parse XML data and otherwise get ready for business. If a program takes several seconds to do all this then a splash screen shows the user that something is happening. If it includes a progress bar or status animation it can let the user know that the program is working and has not become stuck. The application can also perform security checks while the splash screen is visible. It can try to open password-protected databases check the user s credentials and see if it can connect to the network through the user s firewall. In some applications I have included user name and password text boxes on the splash screen so that the user can use it to log in. The splash screen s code then checked a password database to verify that the user name and password were correct and to see what kind of user this
