- （void）applicationWillResignActive：（UIApplication *）应用程序从未被调用 [英] - (void)applicationWillResignActive:(UIApplication *)application never gets called

问题描述

我想处理电话和待机状态。我添加了函数

   - （void）applicationWillResignActive：（UIApplication *）application 
  

和

   - （void）applicationDidBecomeActive： UIApplication *）应用程序
  

到我的UIApplicationDelegate。当退出待机状态时，applicationDidBecomeActive总是被调用。但是问题是applicationWillResignActive永远不会被调用。

我想知道是否有人遇到这个问题，以及是否有人找到原因。

EDIT

更多信息，我发现我的引擎的更新循环从applicationDidFinishLaunching运行，我错过了消息。我调用

  while（CFRunLoopRunInMode（kCFRunLoopDefaultMode，.002，FALSE）== kCFRunLoopRunHandledSource）; 
  

捕获所有iphone消息，但它不会捕获resignActive消息， / p>

尝试为我的更新循环分支线程会导致奇怪的崩溃错误。任何人都有快速修复建议？

解决方案

当在iOS 4.0中点击主页按钮时，将调用以下代理方法

  - （void）applicationWillResignActive：（UIApplication *）application 
 {
 NSLog（@Application Did Resign Active）; 
} 
 
  - （void）applicationDidEnterBackground：（UIApplication *）application 
 {
 NSLog（@Application Did Enter Background）; 
} 
  

当您双击主页按钮并重新启动应用程序时，委托方法被调用。

   - （void）applicationWillEnterForeground：（UIApplication *）application 
 {
 NSLog （@应用程序将输入前景）; 
} 
 
 
 
  - （void）applicationDidBecomeActive：（UIApplication *）application 
 {
 NSLog（@Application Did Being Active ）; 
} 
  

I'm trying to handle phone calls and standby and things of that nature. I added the function

- (void)applicationWillResignActive:(UIApplication *)application

and

- (void)applicationDidBecomeActive:(UIApplication *)application

to my UIApplicationDelegate. When coming out of standby, "applicationDidBecomeActive" always gets called. However the issue is "applicationWillResignActive" never gets called.

I was wondering if anyone has run into this issue and whether or not anyone found a reason.

EDIT

More info, I discovered that my engine's update loop that gets run from applicationDidFinishLaunching was causing me to miss the message. I call

while(CFRunLoopRunInMode(kCFRunLoopDefaultMode, .002, FALSE) == kCFRunLoopRunHandledSource);

to catch all iphone messages but it doesn't seem to catch the resignActive message before becoming inactive.

Attempting to fork a thread for my update loop is causing weird crash bugs. Anyone have any quick fix suggestions?

解决方案

Its getting called in iOS 4.0 , when the Home button is hit.

The following delegate methods are called when the Home button is hit in iOS 4.0

- (void)applicationWillResignActive:(UIApplication *)application
{
  NSLog(@"Application Did Resign Active");
}

- (void)applicationDidEnterBackground:(UIApplication *)application
{
  NSLog(@"Application Did Enter Background");
}

And when you double tap the home button and again relaunch the App , the following delegate methods are called .

- (void)applicationWillEnterForeground:(UIApplication *)application
{
  NSLog(@"Application Will Enter Foreground");
}



- (void)applicationDidBecomeActive:(UIApplication *)application
{
  NSLog(@"Application Did Become Active");
}

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