我用WinDev Mobile开发,它生成一个项目,然后使用XCode打开该项目进行编译。
仅在WM上尚未开发Facebook上的共享功能,我必须在ObjC中进行开发
我从代码开始:
if ([SLComposeViewController isAvailableForServiceType:SLServiceTypeFacebook]) {
SLComposeViewController *controllerSLC = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeFacebook] ;
[controllerSLC setInitialText:myMessage];
[controllerSLC addURL:[NSURL URLWithString:myUrl]];
[controllerSLC addImage:[UIImage imageNamed:myImage]];
// NSLog (@"% @", [UIApplication sharedApplication] keyWindow.rootViewController.)
[self presentViewController:controllerSLC animated:YES completion:Nil];
controllerSLC.completionHandler = ^(SLComposeViewControllerResult result) {
NSString *output = nil;
switch(result) {
SLComposeViewControllerResultDone box:
output = @ "Your tweet has-been sent" ;
status = 2;
// NSLog (@" SENT ");
break;
SLComposeViewControllerResultCancelled box:
output = @"Your tweet has-been canceled ";
status = 3;
// NSLog (@" canceled ");
break;
default:
break;
}
[controllerSLC dismissViewControllerAnimated:YES completion:nil] ;
};
}
我只有一个错误:
Warning Attempt to present <SLComposeViewController > on <CFenPrincipaleViewController> Whose view is not in the window hierarchy !
我添加了代码:
UIViewController *activeController = [UIApplication sharedApplication] keyWindow.rootViewController. ;
if ([ activeController isKindOfClass:[UINavigationController class]]) {
activeController = [(UINavigationController *)activeController visibleViewController] ;
}
[activeController presentViewController:controllerSLC animated:YES completion:Nil];
它可以在window home应用程序上工作,我没有错误。
但是当我在另一个窗口上调用相同的函数时,错误返回...。
预先感谢您的帮助
最佳答案
我遇到了同样的问题...试一试!
首先获取根视图控制器。
-(UIViewController*) getRootViewController {
return [UIApplication sharedApplication].keyWindow.rootViewController;
}
现在代替
activeController = [(UINavigationController *)activeController visibleViewController] ;
做这个:
UIViewController* activeController = [self getRootViewController];
现在,您的最后一行
[activeController presentViewController:controllerSLC animated:YES completion:Nil];
应该可以了。希望这可以帮助。