iPhone 開發筆記11: 橫向畫面設定

A. 新增一個 View-based Project.
B. 在 Resources 裡,  新增一個背景圖檔(ex: background.jpg).
C. 在 Interface Builder 的 View 裡, 新增一個 UIImageView, 並設定剛剛的背景圖檔.

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D. 在 Interface Builder 裡, 點選 View , 在 View Attributes 的 Simulated User Interface Elements 下的 Orientation 選擇: Landscape (風景畫: 代表橫向).

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E. 打開 xxx-info.plist 檔, 新增以下一組 Key 與 Value:
Key: Initial interface orientation
Value: Landscape(right home button)

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F.在程式裡, 加上一段 code:

// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Return YES for supported orientations
    //return (interfaceOrientation == UIInterfaceOrientationPortrait);
    //@add
    return (interfaceOrientation == UIInterfaceOrientationLandscapeLeft);
}