iOS 代码关闭App、配置后台运行模式

代码关闭App

方法一：

- (void)exitApplication{
    AppDelegate *app = (AppDelegate *)[UIApplication sharedApplication].delegate;
    UIWindow *window = app.window;
    
    [UIView animateWithDuration:1.0f animations:^{
        window.alpha = 0;
        window.frame = CGRectMake(0, window.bounds.size.width, 0, 0);
    } completion:^(BOOL finished) {
        exit(0);
    }];
}

方法二：

- (void)exitApplication {
    
    [UIView beginAnimations:@"exitApplication" context:nil];
    
    [UIView setAnimationDuration:0.5];
    
    [UIView setAnimationDelegate:self];
    
    // [UIView setAnimationTransition:UIViewAnimationCurveEaseOut forView:self.view.window cache:NO];
    
    AppDelegate *delegate = (AppDelegate *)[UIApplication sharedApplication].delegate;
    
    [UIView setAnimationTransition:UIViewAnimationCurveEaseOut forView:delegate.window cache:NO];
    
    [UIView setAnimationDidStopSelector:@selector(animationFinished:finished:context:)];
    
    //self.view.window.bounds = CGRectMake(0, 0, 0, 0);
    
    delegate.window.bounds = CGRectMake(0, 0, 0, 0);
    
    [UIView commitAnimations];
    
}

- (void)animationFinished:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context {

    if ([animationID compare:@"exitApplication"] == 0) {
        exit(0);
    }

}

配置后台运行模式

在工程的info.plist 文件中，可以通过添加Required background modes (后台工作模式)属性，来实现后台运行一些操作，比如蓝牙、音频、视频、网络处理等。

iOS App 在后台运行支持的一些操作

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