如何将信息保存为Json

Question

我有一些信息显示在屏幕上的几个标签上，如时间，按钮坐标，总视频录制时间等。
而不是在标签中显示一些信息？如何使用json文件将这些信息本地保存在内存中？

- (IBAction)firstButton:(UIButton *)sender {
sender.selected  = !sender.selected;
[self starting];
[self allButtonsSelected];

_startTimer = [NSTimer scheduledTimerWithTimeInterval:1.0f
                                               target:self
                                             selector:@selector(firtBtnCount)
                                             userInfo:nil
                                              repeats:YES];

self.lblForInfo.text = NSStringFromCGRect(_firstButton.frame);
NSLog(@"STOP RECORDING");
    [_startTimer invalidate];

Answer 1

你可以做到

NSMutableArray *dicArray = [[NSMutableArray alloc]init];

[dicArray addObject:@{@"frame":NSStringFromCGRect(button1.frame)}];
[dicArray addObject:@{@"frame":NSStringFromCGRect(button2.frame)}];
[dicArray addObject:@{@"frame":NSStringFromCGRect(button3.frame)}];
[dicArray addObject:@{@"frame":NSStringFromCGRect(button4.frame)}];
[dicArray addObject:@{@"frame":NSStringFromCGRect(button5.frame)}];

NSLog(@"dicArray:%@",dicArray);

NSData *data = [NSJSONSerialization dataWithJSONObject:dicArray options:kNilOptions error:nil];

NSArray *retDicArray = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:nil];

NSLog(@"retDicArray:%@",retDicArray);