用户名及密码登陆界面的代码.docxVIP

- (void)viewDidLoad { [super viewDidLoad]; //加载窗口的时候把从文件里读出用户名。 NSString *filePath = [self documentsPath:@user.txt]; //读出文件存到数组username中 NSArray *username = [NSArray arrayWithContentsOfFile:filePath]; self.TXF1.text = [username objectAtIndex:0]; self.Txtpwd.text = [username objectAtIndex:1]; //文本显示设为安全。星号 self.Txtpwd.secureTextEntry = YES; } //登陆验证 - (IBAction)loginpage:(id)sender { NSLog(@login...\n); NSString *filePath = [self documentsPath:@user.txt]; //从user这个文件里读出用户名和密码是否与输入的相同 NSArray *username = [NSArray arrayWithContentsOfFile:filePath]; if([TXF1.text isEqualToString:[username objectAtIndex:0]] [Txtpwd.text isEqualToString:[username objectAtIndex:1]]) { //如果验证正确，则重新打开一个窗口 if(self.loginhome ==nil) { NSLog(@loginhome); loginhome *homepage = [[loginhome alloc]initWithNibName:@loginhome bundle:nil]; self.loginhome = [homepage autorelease]; [self.view addSubview:self.loginhome.view]; } else { [self.view addSubview:self.loginhome.view]; } NSLog(@登陆成功！\n); } else { NSLog(@用户名或密码错误！\n); judgelogin = [[UIAlertView alloc]initWithTitle:@提示 message:@用户名或密码错误！ delegate:self cancelButtonTitle:@取消 otherButtonTitles:@确定,nil]; [judgelogin show]; [judgelogin release]; } } //读程序目录而准备 -(NSString *)bundlePath:(NSString *)fileName { return [[[NSBundle mainBundle] bundlePath] stringByAppendingPathComponent:fileName]; } -(NSString *)documentsPath:(NSString *)fileName { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; return [documentsDirectory stringByAppendin