此处用例举一个plist文件的Demo,只是对plist文件简单的读写操作
新建工程命名plistFile,class Prefix 填写PF,然后next
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开始的时候并没有加入plist文件,除了工程自动生成的plistFile-Info.plist,然后直接在PFViewContoller.m文件中的viewDidLoad添加代码:
- (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. // 读取plist文件 NSString *plistPath = [[NSBundle mainBundle] pathForResource:@"testInfo" ofType:@"plist"]; NSMutableDictionary *data=[[NSMutableDictionary alloc] initWithContentsOfFile:plistPath]; // 打印出plist文件 NSLog(@"%@",data); // 写入plist文件 [data setObject:@"test1" forKey:@"key1" ]; [data setObject:@"test2" forKey:@"key2"]; [data writeToFile:@"testInfo.plist" atomically:YES]; NSLog(@"%@",data); NSLog(@"%@",[data objectForKey:@"key2"]); }
这样做的目的只是想测试一下如果我们没有手工创建一个plist文件,当我们读取的时候系统会不会自动创建一个plist文件,测试结果是系统不会生成plist文件,输出plist文件内容为nil,运行结果截图:
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![](http://dl.iteye.com/upload/attachment/0079/2875/4e9e082b-620e-3f7a-b570-9a3b0af16d30.png)
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然后我们在手动创建一个plist文件,命名为testInfo.plist
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通过手动创建了plist文件后再次运行,可以读取数据:
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![](http://dl.iteye.com/upload/attachment/0079/2883/a6eb1b55-22e2-3689-a0a5-56ba1329142e.png)
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但是当我们打开testInfo.plist文件时,发现没有内容,这个有些不理解:
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![](http://dl.iteye.com/upload/attachment/0079/2885/b0b81698-6eb9-352a-a368-6111da08afe3.png)
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然后我们在testInfo.plist文件右键Add Row,就可在里面添加数据;
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手动在testInfo.plist中添加了如下数据,然后点击运行:
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从结果中我们可以看出,Key1,和key2在第一个NSLog打印中没有,因为key1和key2是在第一个NSLog后在写入testInfo.plist之中;
怎样用代码在向testInfo.plist中添加一个数组呢,在ViewDidLoad后面添加如下代码,即可以实现:
NSArray *array = [[NSArray alloc] initWithObjects:@"tes11",@"test12",@"test13",@"test14", nil];//数组初始化 [data setObject:array forKey:@"arraytest"];//设置数组键值 [data writeToFile:@"customInfo.plist" atomically:YES];//将数组数据写入testInfo.plist文件中 NSLog(@"%@",data);
运行结果截图如下:
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![](http://dl.iteye.com/upload/attachment/0079/2893/886dad31-ac84-306f-a5ff-cfd6bd9fe28c.png)
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