本文介绍了REACT-本机IOS-如何在启动屏幕后、在初始化REACT本机网桥(IOS)之前显示视图控制器的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有一个动画(闪屏动画)位于本机iOS视图控制器(Swift)中,我希望在启动屏幕3秒后显示该动画的视图控制器,然后再启动Reaction-Native桥。
我试着处理AppDelegate.m文件,下面是我用😩得出的结果。
RN版本0.61
#import "AppDelegate.h"
#import <React/RCTBridge.h>
#import <React/RCTBundleURLProvider.h>
#import <React/RCTRootView.h>
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"AnimationView" bundle:[NSBundle mainBundle]];
UIViewController *vc =[storyboard instantiateInitialViewController];
RCTBridge *bridge = [[RCTBridge alloc] initWithDelegate:self launchOptions:launchOptions];
RCTRootView *rootView = [[RCTRootView alloc] initWithBridge:bridge
moduleName:@"SplashScreenFinal"
initialProperties:nil];
rootView.backgroundColor = [[UIColor alloc] initWithRed:1.0f green:1.0f blue:1.0f alpha:1];
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.window.rootViewController = vc;
[self.window makeKeyAndVisible];
if (after 3 secs) {
self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
UIViewController *rootViewController = [UIViewController new];
rootViewController.view = rootView;
self.window.rootViewController = rootViewController;
[self.window makeKeyAndVisible];
}
return YES;
}
- (NSURL *)sourceURLForBridge:(RCTBridge *)bridge
{
#if DEBUG
return [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index" fallbackResource:nil];
#else
return [[NSBundle mainBundle] URLForResource:@"main" withExtension:@"jsbundle"];
#endif
}
@end
谢谢。
推荐答案
您调用方法
[storyboard instantiateInitialViewController]
此方法将调用您为此情节提要设置的默认Create ViewController。您是否选中了要显示的第一个视图控制器的Is Initial View Controller
?您可以使用其他方式初始化视图控制器
[storyboard instantiateViewControllerWithIdentifier:@"myAnimationViewController"];
请记住,为视图控制器设置情节提要IDmyAnimationViewController
是为了设置rootViewController。
代码示例:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"AnimationViewStoryboard" bundle:[NSBundle mainBundle]];
// this code just run when storyboard have default ViewController
// UIViewController *vc =[storyboard instantiateInitialViewController];
UIViewController *vc =[storyboard instantiateViewControllerWithIdentifier:@"myAnimationViewController"];
RCTBridge *bridge = [[RCTBridge alloc] initWithDelegate:self launchOptions:launchOptions];
RCTRootView *rootView = [[RCTRootView alloc] initWithBridge:bridge
moduleName:@"DemoReactNative"
initialProperties:nil];
rootView.backgroundColor = [[UIColor alloc] initWithRed:1.0f green:1.0f blue:1.0f alpha:1];
UIViewController *rootViewController = [UIViewController new];
rootViewController.view = rootView;
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.window.rootViewController = vc;
[self.window makeKeyAndVisible];
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(3 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
self.window.rootViewController = rootViewController;
});
return YES;
}
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