赋值使指针来自整数而不进行强制转换
我不明白这里有什么问题！ 编译后，总是显示：“赋值使指针来自整数而不进行强制转换” 我不知道是什么问题！请让我一下，谢谢。
节省
NSUserDefaults *percentChecker = [NSUserDefaults standardUserDefaults];
[percentChecker setInteger:0 forKey:percentCheckerSaveKey];
负载
NSUserDefaults *percentChecker = [NSUserDefaults standardUserDefaults];
NSString *percentString;
//Alert!
percentString = [percentChecker integerForKey:percentCheckerSaveKey];
I don't understand what is problem here!
after I compile it, always show me: "assignment makes pointer from integer without a cast"
I don't know what is the problem! Please let me, thanks.
SAVE
NSUserDefaults *percentChecker = [NSUserDefaults standardUserDefaults];
[percentChecker setInteger:0 forKey:percentCheckerSaveKey];
LOAD
NSUserDefaults *percentChecker = [NSUserDefaults standardUserDefaults];
NSString *percentString;
//Alert!
percentString = [percentChecker integerForKey:percentCheckerSaveKey];
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这正是它告诉你的。
percentString是一个指针，但integerForKey:返回一个整数。将该整数分配给指针就是“从没有强制转换的整数生成指针”。为什么要保存一个整数并稍后尝试将其作为字符串加载？It's exactly what it's telling you.
percentStringis a pointer, butintegerForKey:returns an integer. Assigning that integer to a pointer is making a "pointer from an integer without a cast". Why are you saving an integer and trying to load it later as a string?