Question

我有应用程序，我已经录制了声音文件，我希望我可以检查，如果我需要或现有的文件应该上传到服务器其他明智不

我有类型数组，其中有像重要等的值我想要如果这个文件退出我有[自上传]的方法然后它应该被调用，否则不是

    int i=0;
    for (i=0; i<[types count]; i++) {


    NSString*type=[types objectAtIndex:i];

   NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
   NSString *documentsDirectory = [paths objectAtIndex:0]; 




   NSString * filePath = [NSString stringWithFormat:@"%@/Documents/%@_%@_%@_%@.wav", NSHomeDirectory(),theCellData.firstName,theCellData.lasttName,theCellData.patientId,type];




  BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:filePath];

   }

Answer 1

int i=0;
for (i=0; i<[types count]; i++) 
{
NSString*type=[types objectAtIndex:i];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];  
NSString *filePath = [NSString stringWithFormat:@"%@/%@_%@_%@_%@.wav",documentsDirectory,theCellData.firstName,theCellData.lasttName,theCellData.patientId,type];
 BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:filePath];
if (fileExists == 0) 
{
    NSLog(@"File is Not exists");
}
else
{
   NSLog(@"File exists");
 }
}

Answer 2

与上面的答案非常相似，但为了完整起见，根据您的问题，您的代码应该是什么样子。（我猜你对Cocoa有些新鲜......）

NSString* documentsPath1 = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString* foofile = [documentsPath1 stringByAppendingFormat:@"/%@_%@_%@_%@.wav", theCellData.firstName, theCellData.lasttName, theCellData.patientId, type];
BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath: foofile];
if (fileExists == NO) 
{
     NSLog(@"File does not exist");
}
else
{
     NSLog(@"File exists");
}

如何在iPhone中查看应用程序文档文件夹中是否存在此文件

2 个答案: