一、Assets.xcassets -> + -> App icons & Launch Images -> New iOS Launch Image
二、设置为Launch Image的图片，最好为 .png格式
三、单击工程名称 -> General -> Launch Images Source改为LaunchImage ->Launch Source File的内容置为空
四、将LaunchScreen.storyboard的设置中的Use as Launch Screen取消
五、此时运行就能看到Launch Image了，记得把之前装的app卸载掉。
六、效果图(ipad && iphone)
iPad 启动页面
iPhone 启动页面
七、如果感觉Launch Image显示的时间太短，可以在AppDelegate.m文件里面添加一行 延迟 代码：
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// 延迟进入应用,避免应用启动过快,导致启动图片一闪而过
[NSThread sleepForTimeInterval:3.0];
}- 1
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八、设备支持的启动图片尺寸大全
按照如下 设置Launch Image 尺寸
| Device | Orientation&&System | Size | Launch Image | pixel |
|---|---|---|---|---|
| iPhone | Portrait iOS 5,6 | Retina 4 | [email protected] | 640 × 1136 pixels |
| iPhone | Portrait iOS 7,8 | Retina 4 | [email protected] | 640 × 1136 pixels |
| iPhone | Portrait iOS 8 | Retina HD 5.5 | [email protected] | 1242 × 2208 pixels |
| iPhone | Portrait iOS 8 | Retina HD 4.7 | [email protected] | 750 × 1334 pixels |
| iPhone | Portrait iOS 5,6 | 1x | LaunchImage.png | 320 × 480 pixels |
| iPhone | Portrait iOS 5,6 | 2x | [email protected] | 640 × 960 pixels |
| iPhone | Portrait iOS 7,8 | 2x | [email protected] | 640 × 960 pixels |
| iPhone | Landscape iOS 8 | Retina HD 5.5 | [email protected] | 2208 × 1242 pixels |
| iPad | Portrait iOS 7,8 | 1x | LaunchImage.png | 768 × 1024 pixels |
| iPad | Portrait iOS 7,8 | 2x | [email protected] | 1536 × 2048 pixels |
| iPad | Landscape iOS 7,8 | 1x | LaunchImage.png | 1024 × 768 pixels |
| iPad | Landscape iOS 7,8 | 2x | [email protected] | 1536 × 2048 pixels |