我試圖保存高分,我有5個高分的文本框,我想要在他們遭到毆打時更換它們,顯然。但對我來說,它總是進入if語句:if ([hs.text floatValue] == 0)
,它只是取代了第一個高分區文本框,無論我運行多少次。我究竟做錯了什麼?保存高分不適用於我
- (void)viewDidLoad
{
[super viewDidLoad];
highscore = [[NSUserDefaults standardUserDefaults] floatForKey: @"highScore"];
highscore1 = [[NSUserDefaults standardUserDefaults] floatForKey: @"highScore1"];
highscore2 = [[NSUserDefaults standardUserDefaults] floatForKey: @"highScore2"];
highscore3 = [[NSUserDefaults standardUserDefaults] floatForKey: @"highScore3"];
highscore4 = [[NSUserDefaults standardUserDefaults] floatForKey: @"highScore4"];
if ([hs.text floatValue] == 0) {
hs.text = [NSString stringWithFormat:@"%.4f",finTime];
}
else if ([hs1.text floatValue] == 0) {
hs1.text = [NSString stringWithFormat:@"%.4f",finTime];
}
else if ([hs2.text floatValue] == 0) {
hs2.text = [NSString stringWithFormat:@"%.4f",finTime];
}
else if ([hs3.text floatValue] == 0) {
hs3.text = [NSString stringWithFormat:@"%.4f",finTime];
}
else if ([hs4.text floatValue] == 0) {
hs4.text = [NSString stringWithFormat:@"%.4f",finTime];
}
else if (finTime < highscore) {
hs4.text = hs3.text;
hs3.text = hs2.text;
hs2.text = hs1.text;
hs1.text = hs.text;
hs.text = [NSString stringWithFormat:@"%.4f",finTime];
}
else if (finTime < highscore1) {
hs4.text = hs3.text;
hs3.text = hs2.text;
hs2.text = hs1.text;
}
else if (finTime < highscore2) {
hs4.text = hs3.text;
hs3.text = hs2.text;
hs2.text = [NSString stringWithFormat:@"%.4f",finTime];
}
else if (finTime < highscore3) {
hs4.text = hs3.text;
hs3.text = [NSString stringWithFormat:@"%.4f",finTime];
}
else if (finTime < highscore4) {
hs4.text = [NSString stringWithFormat:@"%.4f",finTime];
}
[self saveScore];
}
-(void) saveScore
{
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setFloat:finTime forKey:@"highScore"];
[defaults setFloat:finTime forKey:@"highScore1"];
[defaults setFloat:finTime forKey:@"highScore2"];
[defaults setFloat:finTime forKey:@"highScore3"];
[defaults setFloat:finTime forKey:@"highScore4"];
[[NSUserDefaults standardUserDefaults] synchronize];
}
你可以包括'hs.text'設置的位置嗎? – bachonk
'hs'不是'nil'?文本已經放入文本字段了嗎?在'viewDidLoad'中很早就期望'hs.text'中有一些文本,這似乎很奇怪。如果沒有文本,或者文本不是數字,或者'hs'是'nil',則會得到'floatValue'爲'0'。在第一個if語句中,hs.text被設置爲 – rmaddy
。我試過了hs.text ==零,如果我這樣做,它不會進入if語句 –