uiview |
2012-10-16 15:03 |
31,警告: warning: Semantic Issue: Incompatible integer to pointer conversion assigning to ‘BOOL *‘ (aka ‘signed char *‘) from ‘BOOL‘ (aka ‘signed char‘) 解决办法: 检查 BOOL *换为BOOL就可以了,检查是不是多写一个 * 号。
32:Jsonkit中的警告 Direct access to objective-c‘s isa is deprecated in favor of object_setClass() and object_getClass() object->isa 替换为 object_getClass(object) keyObject->isa 替换为 object_getClass(keyObject) (id)keys[idx]->isa 替换为 object_getClass((id)keys[idx]) format specifies type ‘unsigned long‘ but the argument has type ‘nsuinteger‘ (aka ‘unsigned int‘) 给变量增加(unsigned long)进行类型转换
33:md5加密(iOS SDK中自带了CommonCrypto Implicit declaration of function ‘CC_MD5‘ is invalid in C99 [plain] view plaincopy #define CC_MD5_DIGEST_LENGTH 16 +(NSString *)MD5HashForString:(NSString *)input { const char *cStr = [input UTF8String]; unsigned char result[CC_MD5_DIGEST_LENGTH]; CC_MD5(cStr, strlen(cStr), result); return [NSString stringWithFormat: @"%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x", result[0], result[1], result[2], result[3], result[4], result[5], result[6], result[7], result[8], result[9], result[10], result[11], result[12], result[13], result[14], result[15]]; } 引入函数定义的头文件 #import <CommonCrypto/CommonDigest.h>
34:ASIDataDecompressor中的警告 format specifies type ‘short‘ but the argument has type ‘int‘ 在+ (NSError *)deflateErrorWithCode:(int)code 和 +(NSError *)inflateErrorWithCode:(int)code中 [NSString stringWithFormat:@"Compression of data failed with code %hi",code] 中 将code改为 (short)code,类型转换
35:Reachability中警告 Using ‘stringWithString:‘ with a literal is redundant statusString = [NSString stringWithString: @"Not Reachable"]; 改为:statusString = @"Not Reachable";
36.format specifies type ‘id‘ but the argument has type ‘const char *‘ NSCAssert(NO, @"Unhandled error encountered during SAX parse. msg is %@", msg); 改为:NSCAssert(NO, @"Unhandled error encountered during SAX parse. msg is %@", [NSString stringWithUTF8String:msg]);
37 Using ‘stringWithString:‘ with a literal is redundant 改为:self.locationInput.text = @"captured change";
38 在项目中设置控件的layer属性时,会发生错误, "Property ‘c‘ cannot be found in forward class object ‘CALayer *", 这时需要引入 #import <QuartzCore/CALayer.h>。
39 在项目中变量未初始化会报警告, "Variable ‘type‘ may be uninitialized when used here", 这时需要初始化相应的变量即可 。 |
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