如何编码url？

Question

我有一个textView1，当我键入内容并按下按钮URL打开。当我输入英文时一切正常，但我也必须输入俄语，它不起作用。所以我需要对它进行编码。有人可以帮助编码吗？

我SozdikViewerController.h文件

import <UIKit/UIKit.h> 
@interface SozdikViewController : UIViewController 
@property (strong, nonatomic) IBOutlet UITextView *textView1; 
@property (weak, nonatomic) IBOutlet UIButton *Button_Ask; 
-(IBAction)ask; 
@end 

我SozdikViewerController.m文件

#import "SozdikViewController.h" 
-(IBAction)ask{ 


NSString *urlString = [NSString stringWithFormat:@"http://www.audaru.kz/?product=SoylemMT&word=%@&app_request=true", [[self textView1] text]]; 

    NSString *newString; 
newString = [urlString stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; 
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:newString]]; 
} 
@end 

Answer 1

newString = [urlString stringByAddingPercentEscapesUsingEncoding：NSUTF8StringEncoding];