沙盒路径，NSBund的使用，plist文件的使用沙盒路径，NSBund的使用，plis

第一种方法：获取本地documents路径，library路径，temp路径

NSString*documentsPath=[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES)objectAtIndex:0]; NSString*libraryPath=[NSSearchPathForDirectoriesInDomains(NSLibraryDirectory,NSUserDomainMask,YES)objectAtIndex:0]; NSString*tempPath=NSTemporaryDirectory();

第二种方法：

NSString*DocumentsPath = [NSHomeDirectory()stringByAppendingPathComponent:@"/Documents"]; NSString*LibraryPath = [NSHomeDirectory()stringByAppendingPathComponent:@"/Library"]; NSString*tmpPath = [NSHomeDirectory()stringByAppendingPathComponent:@"/tmp"];

保存一张图片到documents下的ios文件夹中

NSString*imageDir = [NSStringstringWithFormat:@"%@/documents/%@",NSHomeDirectory(),@"ios"]; NSFileManager*fileManager = [NSFileManagerdefaultManager]; if([fileManagerfileExistsAtPath:imageDir]){NSLog(@"存在"); }else{NSLog(@"不存在"); //创建文件夹路径[[NSFileManagerdefaultManager]createDirectoryAtPath:imageDirwithIntermediateDirectories:YESattributes:nilerror:nil]; }UIImage*image = [UIImageimageNamed:@"1.png"]; //设置一个图片的存储路径NSString*imagePath = [imageDirstringByAppendingString:@"/aa.png"]; //设置一个图片的存储路径[UIImagePNGRepresentation(image)writeToFile:imagePathatomically:YES]; //写入到ios文件夹中

保存 .txt 文件到documents下的ios文件夹中

NSString*imageDir = [NSStringstringWithFormat:@"%@/documents/%@",NSHomeDirectory(),@"ios"]; NSFileManager*fileManager = [NSFileManagerdefaultManager]; if([fileManagerfileExistsAtPath:imageDir]){NSLog(@"存在"); }else{NSLog(@"不存在"); //创建文件夹路径[[NSFileManagerdefaultManager]createDirectoryAtPath:imageDirwithIntermediateDirectories:YESattributes:nilerror:nil]; } NSDictionary*dic =@{@"content":@"我是测试的",@"name":@"林毛家"}; NSString*filePath = [imageDirstringByAppendingPathComponent:@"aa.txt"]; NSLog(@"%@",filePath); if([dicwriteToFile:filePathatomically:YES]) {NSLog(@"保存成功"); }else{NSLog(@"保存失败"); }

从Documents读取图片图片

NSString*imgPath = [NSHomeDirectory()stringByAppendingPathComponent:@"/Documents/ios/aa.png"]; UIImage*img = [UIImageimageWithContentsOfFile:imgPath];

遍历Documents下的所有文件名称

NSFileManager*fileManager = [NSFileManagerdefaultManager]; NSString*DocumentsPath = [NSHomeDirectory()stringByAppendingPathComponent:@"/Documents"]; //获取本地Documents路径NSError*error =nil; NSArray*fileList = [[NSArrayalloc]init]; fileList=[fileManagercontentsOfDirectoryAtPath:DocumentsPatherror:&error]; NSLog(@"%@",fileList);

取出plist文件中的数据

NSString*plistPath = [[NSBundlemainBundle]pathForResource:@"phone"ofType:@"plist"]; NSArray*array = [NSArrayarrayWithContentsOfFile:plistPath]; NSMutableArray*dataSource = [NSMutableArrayarrayWithArray:array]; NSLog(@"%@",dataSource); NSUserDefaults的使用NSUserDefaults*UserDefaults=[NSUserDefaultsstandardUserDefaults]; //保存用户头像UIImage*image=[UIImageimageNamed:@"aa.png"]; [UserDefaultssetObject:UIImagePNGRepresentation(image)forKey:@"image"]; UIImage*Newimage=[UIImageimageWithData:[UserDefaultsobjectForKey:@"image"]]; //保存用户名[UserDefaultssetObject:@"林毛家"forKey:@"name"]; NSString*name=[UserDefaultsobjectForKey:@"name"]; //判断是否第一次登陆[UserDefaultssetBool:YESforKey:@"isFirst"];

从bundel获取文件路径