Twitterkit TWTRComposer崩溃

Question

我用TwitterKit发推文，用这个代码。

TWTRComposer *twitterComposer = [[TWTRComposer alloc] init];
[twitterComposer setText:string];
[twitterComposer setURL:[NSURL URLWithString:url]];
[twitterComposer setImage:image];
[twitterComposer showFromViewController:viewController completion:^(TWTRComposerResult result) {
  if (result == TWTRComposerResultDone) {

  }else {

}
}];

但在代码中崩溃

[twitterComposer showFromViewController:viewController completion:^(TWTRComposerResult result) {

我已经获得了Twitter登录会话

使用同样的SLComposerViewController来崩溃

崩溃信息:应用程序试图在目标<>上呈现空模式视图控制器

在ios 10.0.2中

我在https://twittercommunity.com中找不到任何答案

Answer 1

在call TWTRComposer.Otherwise应用程序崩溃之前检查会话。试试这个：

[[Twitter sharedInstance] logInWithCompletion:^(TWTRSession * _Nullable session, NSError * _Nullable error) {
    if (session) {
        TWTRComposer *composer = [[TWTRComposer alloc] init];
        [composer setText:@"just setting up my Fabric"];
        [composer setImage:[UIImage imageNamed:@"fabric"]];
        [composer setURL:[NSURL URLWithString:@"http://www.toshow.com"]];
        [composer showFromViewController:[UIApplication sharedApplication].keyWindow.rootViewController completion:^(TWTRComposerResult result) {

        }];
    } else {
        [CustomToast makeToast:@"get session failed"];
    }
}];