我真的很抓狂,这一定是一个简单的问题,但我就是看不到。
我只是尝试从文本字段为变量分配一个值。
在我的 h 文件中,我有
NSString *currentPass;
@property (nonatomic, retain) NSString *currentPass;
我的 m 文件。
@synthesize currentPass;
- (void)alertView:(UIAlertView *)alertView willDismissWithButtonIndex:
(NSInteger)buttonIndex{
if (alertView.tag == AlertPasswordAsk) {
UITextField* theTextField = ((UITextField*)[alertView viewWithTag: 5]);
currentPass = [NSString stringWithFormat:@"%@", theTextField.text];
if ([theTextField isEditing]) {
[theTextField resignFirstResponder];
}
}
}
- (void)alertView:(UIAlertView *)alertView
didDismissWithButtonIndex:(NSInteger)buttonIndex{
NSLog(@"didDismissWithButtonIndex tag=%i", alertView.tag);
if (alertView.tag == AlertPasswordAsk) {
if(buttonIndex == 1){
NSUserDefaults *myDefaults = [NSUserDefaults standardUserDefaults];
NSString *strPassword = [NSString alloc];
strPassword = [myDefaults stringForKey:@"pass"];
// ######### ERROR OCCURS HERE #########
NSLog(@"currentPass=%@ strPassword=%@", currentPass, strPassword);
if (![currentPass isEqualToString:strPassword]) {
[6337:207] didDismissWithButtonIndex tag=10
Current language: auto; currently objective-c
(gdb) continue
Program received signal: “EXC_BAD_ACCESS”.
(gdb) bt
#0 0x02894903 in objc_msgSend ()
#1 0x00000000 in ?? ()
最佳答案
您需要保留分配给currentPass
的对象:
self.currentPass = [NSString stringWithFormat:@"%@", theTextField.text];
关于iphone - NSString 超出范围问题?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/4184323/