iOS 根據文件名獲取到文件路徑

根據文件名來獲取文件路徑（Document目錄下）

//根據文件名來獲取文件路徑  
- (NSString *)dataFilePath:(NSString *)sender {  
    NSArray *path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,  
                NSUserDomainMask,   
                YES);  
    NSString *documentDirectory = [path objectAtIndex:0];  
    return [documentDirectory stringByAppendingPathComponent:sender];  
}  
resource目錄下

NSString *defaultDBPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:filename];  

Cache目錄下

NSArray *cache = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);     
   NSString *cachePath = [cache objectAtIndex:0] ;     
        
   NSString *voiceName = [cachePath stringByAppendingPathComponent:[sender stringByAppendingString:@".wav"]];