React-Native iOS - 如何在启动屏幕之后、初始化 React Native Bridge 之前显示视图控制器 (iOS)
React-Native iOS - How to show a view controller after Launch screen, before initialising react native bridge (iOS)
我在原生 iOS 视图控制器 (swift) 中有一个动画(闪屏动画),我想在启动屏幕后显示该动画的视图 vontroller 3 秒在启动 react-native 桥之前。
我尝试使用 appdelegate.m 文件,这就是我的想法。
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。
您调用方法 [storyboard instantiateInitialViewController]
此方法将调用您为此故事板设置默认值的创建 ViewController。您是否已检查 Is Initial View Controller
以找到您要显示的第一个 ViewController?
您可以使用另一种方式来初始化视图控制器[storyboard instantiateViewControllerWithIdentifier:@"myAnimationViewController"];
记得为要设置 rootViewController.
的视图控制器设置 Storyboard ID myAnimationViewController
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;
}
我在原生 iOS 视图控制器 (swift) 中有一个动画(闪屏动画),我想在启动屏幕后显示该动画的视图 vontroller 3 秒在启动 react-native 桥之前。
我尝试使用 appdelegate.m 文件,这就是我的想法。
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。
您调用方法
[storyboard instantiateInitialViewController]
此方法将调用您为此故事板设置默认值的创建 ViewController。您是否已检查Is Initial View Controller
以找到您要显示的第一个 ViewController?您可以使用另一种方式来初始化视图控制器
[storyboard instantiateViewControllerWithIdentifier:@"myAnimationViewController"];
记得为要设置 rootViewController. 的视图控制器设置 Storyboard ID
myAnimationViewController
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;
}