UITextView文本不更新

Question

我有顯示文章的UIWebview。我需要選擇一些文本併發送到另一個viewcontroller UITextView。但是，當我安裝應用程序我選擇文本，並加載到viewcontroller1。但是當我去viewcontroller1時，我選擇另一些文本，只顯示以前的文本。它不更新新文本。

代碼：

視圖 - 控制：

NSString *selection = [wbCont stringByEvaluatingJavaScriptFromString:@"window.getSelection().toString()"]; 

NSUserDefaults *userData1 = [NSUserDefaults standardUserDefaults]; 
    [userData1 setObject:selection forKey:@"preferenceName"]; 
    [userData1 synchronize]; 

[self.navigationController pushViewController:viewcontroller1 animated:YES]; 

viewcontroller1：

NSString *savedValue = [[NSUserDefaults standardUserDefaults] 
          stringForKey:@"preferenceName"]; 

textView.text = [NSString stringWithFormat:@"%@", savedValue]; 
[self.view addSubview:textView]; 

Answer 1

在viewcontroller1嘗試做這樣

NSUserDefaults *userData1 = [NSUserDefaults standardUserDefaults]; 
NSString *savedValue = [userData1 valueForKey:@"preferenceName"]; 

textView.text = [NSString stringWithFormat:@"%@", savedValue]; 
[self.view addSubview:textView]; 

Answer 2

試試這個：

NSString *selection = [wbCont stringByEvaluatingJavaScriptFromString:@"window.getSelection().toString()"]; 

    NSUserDefaults *userData1 = [NSUserDefaults standardUserDefaults]; 
    [userData1 setValue:selection forKey:@"preferenceName"]; 
    [NSUserDefaults standardUserDefaults] synchronize]; 
    [self.navigationController pushViewController:viewcontroller1 animated:YES]; 

//瀏覽器

NSString *savedValue = [[NSUserDefaults standardUserDefaults] 
           valueForKey:@"preferenceName"]; 
UITextView *textView = [UITextView alloc] initWithFrame : cgRectMake(0,0,200,50)]//if not created textview 
[self.view addSubview:textView]; 
textView.text = [NSString stringWithFormat:@"%@", savedValue];