6.数据处理
6.1 plsit
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| NSString* filePath = [[NSBundle mainBundle] pathForResource:@"dict_data" ofType:@"plist"];
if (!isEmpty(filePath)) {
NSDictionary* dict = [NSDictionary dictionaryWithContentsOfFile:filePath];
NSLog(@"%@", dict[@"name"]);
NSArray* arr = (NSArray*)dict[@"favor"];
[arr enumerateObjectsUsingBlock:^(id _Nonnull obj, NSUInteger idx, BOOL* _Nonnull stop) {
NSLog(@"%@", obj);
}];
}
NSString *filePath2 = [[NSBundle mainBundle] pathForResource:@"arr_plist" ofType:@"plist"];
NSArray *arr2 = [NSArray arrayWithContentsOfFile:filePath2];
NSLog(@"%@", arr2);
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- 修改数据，注意工程中的arr_plist文件内容没变，但是实际上安装包里面的文件数据是变了的，可以通过open命令打开filePath2路径下的文件。
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| + (void)writePlistData
{
NSString* filePath2 = [[NSBundle mainBundle] pathForResource:@"arr_plist" ofType:@"plist"];
NSMutableArray* arr2 = [NSMutableArray arrayWithContentsOfFile:filePath2];
NSLog(@"1 : %@", arr2);
[arr2 addObject:@"new obj"];
[arr2 writeToFile:filePath2 atomically:YES];
NSMutableArray* arr3 = [NSMutableArray arrayWithContentsOfFile:filePath2];
NSLog(@"2 : %@", arr3);
[arr3 enumerateObjectsUsingBlock:^(id _Nonnull obj, NSUInteger idx, BOOL* _Nonnull stop) {
NSLog(@"%@", obj);
}];
}
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6.2 xml
6.2 JSON
创建json文件
数据读写
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| NSError* error;
NSString* path = [[NSBundle mainBundle] pathForResource:@"data" ofType:@"json"];
// 1.iOS自己的API解析
NSData* data = [NSData dataWithContentsOfFile:path];
NSDictionary* jsonDict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:&error];
NSLog(@"%@", jsonDict);
NSLog(@"name = %@", [jsonDict objectForKey:@"name"]);
// 2.JSONKit解析
NSString* jsonStr = [NSString stringWithContentsOfFile:path encoding:NSUTF8StringEncoding error:&error];
NSLog(@"%@", jsonStr);
NSDictionary* jsonDict2 = [jsonStr objectFromJSONString];
NSLog(@"%@", jsonDict2);
//3.反向生成JSON
NSDictionary* dict = @{ @"age" : @1,
@"xx" : @"2",
@"favor" : @[ @"cai", @"hua" ] };
NSData* jsonData = [NSJSONSerialization dataWithJSONObject:dict options:NSJSONWritingPrettyPrinted error:nil];
NSString* jsonStr = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
NSLog(@"%@", jsonStr);
NSString* jsonStr2 = [dict JSONString];
NSLog(@"%@", jsonStr2);
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注意：目前的JSONKit是MRC的，需要在编译选项里面加入-fno-objc-arc,并且修正两个简单的bug。
