您好!
我從Xcode開始(我是法語,所以我的英語不完全對不起),我需要你的幫助。
我的項目是製作一個應用程序,它可以計算每個學校課程(五)的課堂平均分數。我用變量NSUserDefaults
來保存我的標記,但它不起作用,我不知道爲什麼。按鈕保存數據NSUserDefaults不起作用
此附上我ViewController.h
一個主題學校(其他都還一樣的,只是變量的變化)
#import <UIKit/UIKit.h>
@interface INF231ViewController : UIViewController{
IBOutlet UITextField *INF231CC1;
IBOutlet UITextField *INF231CC2;
IBOutlet UITextField *INF231ET1;
IBOutlet UITextField *INF231ET2;
IBOutlet UILabel *INF231moyenne;}
@property(nonatomic,retain) UITextField *INF231CC1;
@property(nonatomic,retain) UITextField *INF231CC2;
@property(nonatomic,retain) UITextField *INF231ET1;
@property(nonatomic,retain) UITextField *INF231ET2;
@property(nonatomic,retain) UILabel *INF231moyenne;
- (IBAction)INF231save:(id)sender;
- (IBAction)INF231calculer:(id)sender;
@end
這是ViewController.m:
#import "INF231ViewController.h"
@interface INF231ViewController()
@end
@implementation INF231ViewController
- (void)viewDidLoad {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
int INF231noteCC1 = [defaults integerForKey:@"INF231noteCC1"];
int INF231noteCC2 = [defaults integerForKey:@"INF231noteCC2"];
int INF231noteET1 = [defaults integerForKey:@"INF231noteET1"];
int INF231noteET2 = [defaults integerForKey:@"INF231noteET2"];
NSString *INF231noteCC1String = [NSString stringWithFormat:@"%i",INF231noteCC1];
NSString *INF231noteCC2String = [NSString stringWithFormat:@"%i",INF231noteCC2];
NSString *INF231noteET1String = [NSString stringWithFormat:@"%i",INF231noteET1];
NSString *INF231noteET2String = [NSString stringWithFormat:@"%i",INF231noteET2];
INF231CC1.text = INF231noteCC1String;
INF231CC2.text = INF231noteCC2String;
INF231ET1.text = INF231noteET1String;
INF231ET2.text = INF231noteET2String;
[super viewDidLoad];}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];}
- (IBAction)INF231save:(id)sender {
[INF231CC1 resignFirstResponder];
[INF231CC2 resignFirstResponder];
[INF231ET1 resignFirstResponder];
[INF231ET2 resignFirstResponder];
int INF231noteCC1 = [[INF231CC1 text] integerValue];
int INF231noteCC2 = [[INF231CC2 text] integerValue];
int INF231noteET1 = [[INF231ET1 text] integerValue];
int INF231noteET2 = [[INF231ET2 text] integerValue];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setInteger:INF231noteCC1 forKey:@"INF231noteCC1"];
[defaults setInteger:INF231noteCC2 forKey:@"INF231noteCC2"];
[defaults setInteger:INF231noteET1 forKey:@"INF231noteET1"];
[defaults setInteger:INF231noteET2 forKey:@"INF231noteET2"];
[defaults synchronize];
NSLog(@"Data saved");}
@end
當我推「保存」按鈕將其寫入控制檯「數據保存」中,但鍵盤未禁用且數據消失。
我也放了一張Main.Storyboard
的圖片,這樣你就可以看到更好的1。如果你需要其他的東西來確定問題出在哪裏,並幫助我解決問題,請不要猶豫。
我在想太多,如果我應該
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
「*默認」雖然我有其他的數據在其他
ViewController
保存爲我其他科目的學校
使用不同的變量。
非常感謝,如果你花時間幫助我!
版本的Xcode 7.3.1
的iOS版本:9.3.3
當你將'INF231noteCC1'登錄到控制檯時,輸出是什麼? – FelixSFD
我不知道如何將INF231noteCC1記錄到控制檯中。 – edajv
如果我的答案有效,則不需要記錄它。 – FelixSFD