IOS：复制文档文件夹中的文件
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时间：2020-08-30 20:36:03 来源:igfitidea点击:
IOS: copy a file in documents folder
提问by cyclingIsBetter
In my project I have two file .txt (in Resources folder), how can I copy them inside documents folder?
在我的项目中，我有两个文件 .txt（在 Resources 文件夹中），如何将它们复制到文档文件夹中？
回答by taskinoor
Copies txtFilefrom resource to document if not already present.
txtFile如果不存在，则从资源复制到文档。
NSFileManager *fileManager = [NSFileManager defaultManager];
NSError *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *txtPath = [documentsDirectory stringByAppendingPathComponent:@"txtFile.txt"];
if ([fileManager fileExistsAtPath:txtPath] == NO) {
NSString *resourcePath = [[NSBundle mainBundle] pathForResource:@"txtFile" ofType:@"txt"];
[fileManager copyItemAtPath:resourcePath toPath:txtPath error:&error];
}
If you want to overwrite every time then try this:
如果您想每次都覆盖，请尝试以下操作：
if ([fileManager fileExistsAtPath:txtPath] == YES) {
[fileManager removeItemAtPath:txtPath error:&error];
}
NSString *resourcePath = [[NSBundle mainBundle] pathForResource:@"txtFile" ofType:@"txt"];
[fileManager copyItemAtPath:resourcePath toPath:txtPath error:&error];
回答by Ilesh P
Swift 3
斯威夫特 3
code for file is exist or not, if not then copy.
文件的代码是否存在，如果不存在则复制。
func CheckFileisExistOrNot(strPath:String) {
let filemgr = FileManager.default
if !filemgr.fileExists(atPath: strPath) {
let resorcePath = Bundle.main.path(forResource: "\(Global.g_databaseName)", ofType: ".db")
do {
try filemgr.copyItem(atPath: resorcePath!, toPath: strPath)
}catch{
print("Error for file write")
}
}
}
回答by sagar modi
NSFileManager *fileManager = [NSFileManager defaultManager];
NSError *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [[paths objectAtIndex:0]stringByAppendingString:@"csvfile"];
NSString *txtPath = [documentsDirectory stringByAppendingPathComponent:@"sample.csv"];
if ([fileManager fileExistsAtPath:txtPath] == NO) {
NSString *resourcePath = [[NSBundle mainBundle] pathForResource:@"sample" ofType:@".csv"];
[fileManager copyItemAtPath:resourcePath toPath:txtPath error:&error];
