用代码控制退出APP

+ (void)exitApplication {

AppDelegate *app = [UIApplication sharedApplication].delegate;

UIWindow *window = app.window;

[UIView animateWithDuration:0.4f animations:^{

window.alpha = 1;

CGFloat y = window.bounds.size.height;

CGFloat x = window.bounds.size.width / 2;

window.frame = CGRectMake(x, y, 0, 0);

} completion:^(BOOL finished) {

exit(0);

}];

}