tailieunhanh - Lập trình Wrox Professional Xcode 3 cho Mac OS part 55

uôn luôn hiển thị và chỉnh sửa bất cứ hoạt động xây dựng cấu hình. Thay đổi cấu hình sử dụng dự án xây dựng ➪ Set Active Xây dựng cấu hình ngay lập tức thay đổi xây dựng các thiết lập trong cửa sổ Thông tin cho phù hợp. Một trong những điểm hữu ích nhất là xem cấu hình tất cả. Khi bạn chọn điểm này, các tab Xây dựng cho thấy một cái nhìn tổng hợp của tất cả các thiết lập từ tất cả các cấu hình. . | Editing Build Configurations 409 always shows and edits whatever the active build configuration is. Changing the build configuration using Project Set Active Build Configuration immediately changes the build settings in the Info window to match. One of the most useful views is the All Configurations view. When you select this view the Build tab shows a composite view of all of the settings from all configurations. It does this the same way items in a multi-item Info window are displayed. Settings with values that are different between configurations are displayed as Multiple values . Boolean options whose values are set with a check box show a hyphen. You can quickly scan the list to see which settings differ between configurations. More importantly when you are in this view any change you make to a setting sets that value in every configuration of the target or project. This mode is extremely useful for setting project and target settings in multiple configurations simultaneously but it also requires some care. You can easily overwrite settings that were created for a specific configuration. It is also easy to unintentionally create new build settings. In the All Configurations view editing the value of a setting also creates that setting with the same value in every configuration that did not previously contain that setting. Similarly deleting a setting in the All Configurations view deletes that setting from every configuration. EDITING BUILD CONFIGURATIONS You manage build configurations in the Configurations tab of the project s Info window shown in Figure 17-30. The Edit Configuration List shows the build configurations defined in the project. You can get to this by opening the Info window for the project. You can also jump there by selecting the conveniently placed Edit Configurations item in the Configuration menu of any build settings editor. You create a new configuration by selecting an existing configuration and clicking the Duplicate button at the .