iOS获取app图标和启动图片名字（AppIcon and LaunchImage's name）

　　在某种场景下，可能我们需要获取app的图标名称和启动图片的名称。比如说app在前台时，收到了远程通知但是通知栏是不会有通知提醒的，这时我想做个模拟通知提示，需要用到icon名称；再比如在加载某个控制器时，想设置该控制器的背景图片为启动图片，需要用到启动图片名称。

　　而事实上icon图片放在系统AppIcon文件夹里，启动图片放在系统LaunchImage文件夹里，取这些图片的名称和其他一般资源图片名称不一样。

　　为了方便举例子，咱们先简单粗暴点

假设当前项目只支持iPhone设备，并且只支持竖屏；而且当前项目里已经设置好了AppIcon图标和启动图片，

如何获取icon图标名称和启动图片名称呢 ？

上代码和打印日志：

/** 获取app的icon图标名称 */
- (void)getAppIconName{

    NSDictionary *infoDict = [[NSBundle mainBundle] infoDictionary];

    //获取app中所有icon名字数组
    NSArray *iconsArr = infoDict[@"CFBundleIcons"][@"CFBundlePrimaryIcon"][@"CFBundleIconFiles"];
    //取最后一个icon的名字
    NSString *iconLastName = [iconsArr lastObject];

    //打印icon名字
    NSLog(@"iconsArr: %@", iconsArr);
    NSLog(@"iconLastName: %@", iconLastName);
    /*
     打印日志：
     iconsArr: (
         AppIcon29x29,
         AppIcon40x40,
         AppIcon60x60
     )
     iconLastName: AppIcon60x60
     */
}

/** 获取app的启动图片名称，并设置为本控制器背景图片 */
- (void)getLaunchImageName{

    NSString *launchImageName = @"";  //启动图片名称变量
    CGFloat screenHeight = [UIScreen mainScreen].bounds.size.height;

    //获取与当前设备匹配的启动图片名称
    if (screenHeight == 480){ //4，4S
        launchImageName = @"LaunchImage-700";
    }
    else if (screenHeight == 568){ //5, 5C, 5S, iPod
        launchImageName = @"LaunchImage-700-568h";
    }
    else if (screenHeight == 667){ //6, 6S
        launchImageName = @"LaunchImage-800-667h";
    }
    else if (screenHeight == 736){ // 6Plus, 6SPlus
        launchImageName = @"LaunchImage-800-Landscape-736h";
    }

    if (launchImageName.length < 1) return;

    //设备启动图片为控制器的背景图片
    UIImage *img = [UIImage imageNamed:launchImageName];
    self.view.backgroundColor = [UIColor colorWithPatternImage:img];

    // -----  打印app里面所有的启动图片信息 -----
    NSDictionary *infoDict = [[NSBundle mainBundle] infoDictionary];

    //获取所有启动图片信息数组
    NSArray *launchImagesArr = infoDict[@"UILaunchImages"];

    NSLog(@"launchImagesArr: %@", launchImagesArr);
    /*
     打印日志：启动图片的名字是固定的
     launchImagesArr: (
         {
             UILaunchImageMinimumOSVersion = "8.0";
             UILaunchImageName = "LaunchImage-800-Portrait-736h";
             UILaunchImageOrientation = Portrait;
             UILaunchImageSize = "{414, 736}";
         },
         {
             UILaunchImageMinimumOSVersion = "8.0";
             UILaunchImageName = "LaunchImage-800-Landscape-736h";
             UILaunchImageOrientation = Landscape;
             UILaunchImageSize = "{414, 736}";
         },
         {
             UILaunchImageMinimumOSVersion = "8.0";
             UILaunchImageName = "LaunchImage-800-667h";
             UILaunchImageOrientation = Portrait;
             UILaunchImageSize = "{375, 667}";
         },
         {
             UILaunchImageMinimumOSVersion = "7.0";
             UILaunchImageName = "LaunchImage-700";
             UILaunchImageOrientation = Portrait;
             UILaunchImageSize = "{320, 480}";
         },
         {
             UILaunchImageMinimumOSVersion = "7.0";
             UILaunchImageName = "LaunchImage-700-568h";
             UILaunchImageOrientation = Portrait;
             UILaunchImageSize = "{320, 568}";
         }
     )
     */
}

看到了，项目AppIcon图标和启动图片信息，都可以从 [[NSBundle mainBundle] infoDictionary] 获得，当前这里面还包含了app的其他信息如版本、app名称、设备类型、支持方向。。。

打印所有信息看看：

/** 打印app工程配置信息 */
- (void)printInfoDictionary{

    NSDictionary *infoDict = [[NSBundle mainBundle] infoDictionary];
    NSLog(@"%@", infoDict);

    /*
     打印日志：
     {
         BuildMachineOSBuild = 15G31;
         CFBundleDevelopmentRegion = en;
         CFBundleExecutable = TanTest;
         CFBundleIcons =     {
             CFBundlePrimaryIcon =         {
                 CFBundleIconFiles =             (
                     AppIcon29x29,
                     AppIcon40x40,
                     AppIcon60x60
                 );
             };
         };
         CFBundleIdentifier = "net.tan.xxx";
         CFBundleInfoDictionaryVersion = "6.0";
         CFBundleInfoPlistURL = "Info.plist -- file:///Users/PX/Library/Developer/CoreSimulator/Devices/7020368B-C160-42C0-B3C5-5F958FA82EF5/data/Containers/Bundle/Application/77D8C333-A6AF-4183-B79A-A5BEDCD08E1A/TanTest.app/";
         CFBundleName = TanTest;
         CFBundleNumericVersion = 16809984;
         CFBundlePackageType = APPL;
         CFBundleShortVersionString = "1.0";
         CFBundleSignature = "????";
         CFBundleSupportedPlatforms =     (
            iPhoneSimulator
         );
         CFBundleVersion = 1;
         DTCompiler = "com.apple.compilers.llvm.clang.1_0";
         DTPlatformBuild = "";
         DTPlatformName = iphonesimulator;
         DTPlatformVersion = "9.3";
         DTSDKBuild = 13E230;
         DTSDKName = "iphonesimulator9.3";
         DTXcode = 0731;
         DTXcodeBuild = 7D1014;
         LSRequiresIPhoneOS = 1;
         MinimumOSVersion = "6.0";
         UIDeviceFamily =     (
         1
         );
         UILaunchImageFile = LaunchImage;
         UILaunchImages =     (
             {
                 UILaunchImageMinimumOSVersion = "8.0";
                 UILaunchImageName = "LaunchImage-800-Portrait-736h";
                 UILaunchImageOrientation = Portrait;
                 UILaunchImageSize = "{414, 736}";
             },
             {
                 UILaunchImageMinimumOSVersion = "8.0";
                 UILaunchImageName = "LaunchImage-800-Landscape-736h";
                 UILaunchImageOrientation = Landscape;
                 UILaunchImageSize = "{414, 736}";
             },
             {
                 UILaunchImageMinimumOSVersion = "8.0";
                 UILaunchImageName = "LaunchImage-800-667h";
                 UILaunchImageOrientation = Portrait;
                 UILaunchImageSize = "{375, 667}";
             },
             {
                 UILaunchImageMinimumOSVersion = "7.0";
                 UILaunchImageName = "LaunchImage-700";
                 UILaunchImageOrientation = Portrait;
                 UILaunchImageSize = "{320, 480}";
             },
             {
                 UILaunchImageMinimumOSVersion = "7.0";
                 UILaunchImageName = "LaunchImage-700-568h";
                 UILaunchImageOrientation = Portrait;
                 UILaunchImageSize = "{320, 568}";
             }
         );
         UILaunchStoryboardName = LaunchScreen;
         UIMainStoryboardFile = Main;
         UIRequiredDeviceCapabilities =     (
            armv7
         );
         UISupportedInterfaceOrientations =     (
            UIInterfaceOrientationPortrait
         );
     }
     */
}

原文链接：http://www.cnblogs.com/tandaxia/p/5820217.html

iOS获取app图标和启动图片名字（AppIcon and LaunchImage's name）