- html - 出于某种原因,IE8 对我的 Sass 文件中继承的 html5 CSS 不友好?
- JMeter 在响应断言中使用 span 标签的问题
- html - 在 :hover and :active? 上具有不同效果的 CSS 动画
- html - 相对于居中的 html 内容固定的 CSS 重复背景?
当我尝试显示字符串时,我的应用程序崩溃了:
NSLog(@"The start point is: %@",startPt);
这是 startPt
值:39-49%20Avenue%20d'Ivry,%2075013%20Paris,%20France
。实际上它是从 Google map 网络服务返回的。
有时,应用程序没有崩溃,但我在日志中发现了一些奇怪的东西:
The start point is: text/javascript
为什么我无法将字符串 39-49%20Avenue%20d'Ivry,%2075013%20Paris,%20France
分配给 NSString
变量?
编辑:
这是 JSON 响应解析:
NSString *responseString=[request responseString];
NSDictionary *responseDict=[responseString JSONValue];
NSArray *resultsArray = [responseDict objectForKey:@"results"];
location=[[resultsArray valueForKey:@"formatted_address"] objectAtIndex:0];
location=[location stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding];
NSLog(@"The location is : %@",location);//39-49%20Avenue%20d'Ivry,%2075013%20Paris,%20France
这是从 Google map API 返回的 JSON 响应:
{
"results" : [
{
"address_components" : [
{
"long_name" : "39-49",
"short_name" : "39-49",
"types" : [ "street_number" ]
},
{
"long_name" : "Avenue d'Ivry",
"short_name" : "Avenue d'Ivry",
"types" : [ "route" ]
},
{
"long_name" : "Quartier de la Gare",
"short_name" : "Quartier de la Gare",
"types" : [ "neighborhood", "political" ]
},
{
"long_name" : "13th arrondissement of Paris",
"short_name" : "13th arrondissement of Paris",
"types" : [ "sublocality", "political" ]
},
{
"long_name" : "Paris",
"short_name" : "Paris",
"types" : [ "locality", "political" ]
},
{
"long_name" : "Paris",
"short_name" : "75",
"types" : [ "administrative_area_level_2", "political" ]
},
{
"long_name" : "Île-de-France",
"short_name" : "IdF",
"types" : [ "administrative_area_level_1", "political" ]
},
{
"long_name" : "France",
"short_name" : "FR",
"types" : [ "country", "political" ]
},
{
"long_name" : "75013",
"short_name" : "75013",
"types" : [ "postal_code" ]
}
],
"formatted_address" : "39-49 Avenue d'Ivry, 75013 Paris, France",
"geometry" : {
"bounds" : {
"northeast" : {
"lat" : 48.82332110,
"lng" : 2.36638740
},
"southwest" : {
"lat" : 48.82296810,
"lng" : 2.36571090
}
},
"location" : {
"lat" : 48.82313960,
"lng" : 2.36602210
},
"location_type" : "RANGE_INTERPOLATED",
"viewport" : {
"northeast" : {
"lat" : 48.82449358029150,
"lng" : 2.367398130291502
},
"southwest" : {
"lat" : 48.82179561970850,
"lng" : 2.364700169708498
}
}
},
"types" : [ "street_address" ]
},
{
"address_components" : [
{
"long_name" : "Quartier de la Gare",
"short_name" : "Quartier de la Gare",
"types" : [ "neighborhood", "political" ]
},
{
"long_name" : "13th arrondissement of Paris",
"short_name" : "13th arrondissement of Paris",
"types" : [ "sublocality", "political" ]
},
{
"long_name" : "Paris",
"short_name" : "Paris",
"types" : [ "locality", "political" ]
},
{
"long_name" : "Paris",
"short_name" : "75",
"types" : [ "administrative_area_level_2", "political" ]
},
{
"long_name" : "Île-de-France",
"short_name" : "IdF",
"types" : [ "administrative_area_level_1", "political" ]
},
{
"long_name" : "France",
"short_name" : "FR",
"types" : [ "country", "political" ]
}
],
"formatted_address" : "Quartier de la Gare, Paris, France",
"geometry" : {
"bounds" : {
"northeast" : {
"lat" : 48.83810700000001,
"lng" : 2.3869610
},
"southwest" : {
"lat" : 48.8189240,
"lng" : 2.3556050
}
},
"location" : {
"lat" : 48.82807520,
"lng" : 2.36740680
},
"location_type" : "APPROXIMATE",
"viewport" : {
"northeast" : {
"lat" : 48.83810700000001,
"lng" : 2.3869610
},
"southwest" : {
"lat" : 48.8189240,
"lng" : 2.3556050
}
}
},
"types" : [ "neighborhood", "political" ]
},
{
"address_components" : [
{
"long_name" : "13th arrondissement of Paris",
"short_name" : "13th arrondissement of Paris",
"types" : [ "sublocality", "political" ]
},
{
"long_name" : "Paris",
"short_name" : "Paris",
"types" : [ "locality", "political" ]
},
{
"long_name" : "Paris",
"short_name" : "75",
"types" : [ "administrative_area_level_2", "political" ]
},
{
"long_name" : "Île-de-France",
"short_name" : "IdF",
"types" : [ "administrative_area_level_1", "political" ]
},
{
"long_name" : "France",
"short_name" : "FR",
"types" : [ "country", "political" ]
}
],
"formatted_address" : "13th arrondissement of Paris, Paris, France",
"geometry" : {
"bounds" : {
"northeast" : {
"lat" : 48.84496499999999,
"lng" : 2.3900530
},
"southwest" : {
"lat" : 48.8155730,
"lng" : 2.3411080
}
},
"location" : {
"lat" : 48.83222220,
"lng" : 2.35555560
},
"location_type" : "APPROXIMATE",
"viewport" : {
"northeast" : {
"lat" : 48.84496499999999,
"lng" : 2.3900530
},
"southwest" : {
"lat" : 48.8155730,
"lng" : 2.3411080
}
}
},
"types" : [ "sublocality", "political" ]
},
{
"address_components" : [
{
"long_name" : "75013",
"short_name" : "75013",
"types" : [ "postal_code" ]
},
{
"long_name" : "Paris",
"short_name" : "Paris",
"types" : [ "locality", "political" ]
},
{
"long_name" : "Paris",
"short_name" : "75",
"types" : [ "administrative_area_level_2", "political" ]
},
{
"long_name" : "Île-de-France",
"short_name" : "IdF",
"types" : [ "administrative_area_level_1", "political" ]
},
{
"long_name" : "France",
"short_name" : "FR",
"types" : [ "country", "political" ]
}
],
"formatted_address" : "75013 Paris, France",
"geometry" : {
"bounds" : {
"northeast" : {
"lat" : 48.84493089999999,
"lng" : 2.39026440
},
"southwest" : {
"lat" : 48.81587960,
"lng" : 2.34112720
}
},
"location" : {
"lat" : 48.8307590,
"lng" : 2.3592040
},
"location_type" : "APPROXIMATE",
"viewport" : {
"northeast" : {
"lat" : 48.84493089999999,
"lng" : 2.39026440
},
"southwest" : {
"lat" : 48.81587960,
"lng" : 2.34112720
}
}
},
"types" : [ "postal_code" ]
},
{
"address_components" : [
{
"long_name" : "Paris",
"short_name" : "Paris",
"types" : [ "locality", "political" ]
},
{
"long_name" : "Paris",
"short_name" : "75",
"types" : [ "administrative_area_level_2", "political" ]
},
{
"long_name" : "Île-de-France",
"short_name" : "IdF",
"types" : [ "administrative_area_level_1", "political" ]
},
{
"long_name" : "France",
"short_name" : "FR",
"types" : [ "country", "political" ]
}
],
"formatted_address" : "Paris, France",
"geometry" : {
"bounds" : {
"northeast" : {
"lat" : 48.9021450,
"lng" : 2.46992090
},
"southwest" : {
"lat" : 48.8155730,
"lng" : 2.2241990
}
},
"location" : {
"lat" : 48.8566140,
"lng" : 2.35222190
},
"location_type" : "APPROXIMATE",
"viewport" : {
"northeast" : {
"lat" : 48.9021450,
"lng" : 2.46992090
},
"southwest" : {
"lat" : 48.8155730,
"lng" : 2.2241990
}
}
},
"types" : [ "locality", "political" ]
},
{
"address_components" : [
{
"long_name" : "Paris",
"short_name" : "75",
"types" : [ "administrative_area_level_2", "political" ]
},
{
"long_name" : "Île-de-France",
"short_name" : "IdF",
"types" : [ "administrative_area_level_1", "political" ]
},
{
"long_name" : "France",
"short_name" : "FR",
"types" : [ "country", "political" ]
}
],
"formatted_address" : "Paris, France",
"geometry" : {
"bounds" : {
"northeast" : {
"lat" : 48.9021450,
"lng" : 2.46992090
},
"southwest" : {
"lat" : 48.8155730,
"lng" : 2.2241990
}
},
"location" : {
"lat" : 48.87633370,
"lng" : 2.34612070
},
"location_type" : "APPROXIMATE",
"viewport" : {
"northeast" : {
"lat" : 48.9021450,
"lng" : 2.46992090
},
"southwest" : {
"lat" : 48.8155730,
"lng" : 2.2241990
}
}
},
"types" : [ "administrative_area_level_2", "political" ]
},
{
"address_components" : [
{
"long_name" : "Île-de-France",
"short_name" : "IdF",
"types" : [ "administrative_area_level_1", "political" ]
},
{
"long_name" : "France",
"short_name" : "FR",
"types" : [ "country", "political" ]
}
],
"formatted_address" : "Île-de-France, France",
"geometry" : {
"bounds" : {
"northeast" : {
"lat" : 49.2415040,
"lng" : 3.5590070
},
"southwest" : {
"lat" : 48.1200810,
"lng" : 1.446170
}
},
"location" : {
"lat" : 48.84991980,
"lng" : 2.63704110
},
"location_type" : "APPROXIMATE",
"viewport" : {
"northeast" : {
"lat" : 49.2415040,
"lng" : 3.5590070
},
"southwest" : {
"lat" : 48.1200810,
"lng" : 1.446170
}
}
},
"types" : [ "administrative_area_level_1", "political" ]
},
{
"address_components" : [
{
"long_name" : "France",
"short_name" : "FR",
"types" : [ "country", "political" ]
}
],
"formatted_address" : "France",
"geometry" : {
"bounds" : {
"northeast" : {
"lat" : 51.08896180,
"lng" : 9.559956999999999
},
"southwest" : {
"lat" : 41.34232760,
"lng" : -5.1412280
}
},
"location" : {
"lat" : 46.2276380,
"lng" : 2.2137490
},
"location_type" : "APPROXIMATE",
"viewport" : {
"northeast" : {
"lat" : 51.08896180,
"lng" : 9.559956999999999
},
"southwest" : {
"lat" : 41.34232760,
"lng" : -5.1412280
}
}
},
"types" : [ "country", "political" ]
}
],
"status" : "OK"
}
最佳答案
我能想到两种可能性:
(1) 为什么假设字符串是 ASCII?尝试不同的编码:
location = [location stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
也许 Google 使用的是 unicode ',而不是 ASCII 集中的Unicode?如果您正在查看地址数据,那么您可以相当确定其中会放入奇怪的字符!
和 (2) (考虑到您已在问题中发布了 JSON,但这个可能性较小,但值得考虑)
当您第一次获取位置
时,您不会检查它实际上是一个字符串(您也不会检查“formatted_address”是否是一个数组!)
如果返回的 JSON 是这样的(假设服务器中有错误?)怎么办:
{
...
"formatted_address" : [ { } ]
...
}
在这里,[[resultsArray valueForKey:@"formatted_address"] objectAtIndex:0];
可以工作,但它不会返回 NSString
。
尝试添加这种检查:
location=[[resultsArray valueForKey:@"formatted_address"] objectAtIndex:0];
if (NO == [location isKindOfClass:[NSString class]]) {
NSLog(@"Location wasn't a string (%@) : %@", [location class], location);
} else {
location=[location stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding];
NSLog(@"The location is : %@",location);//39-49%20Avenue%20d'Ivry,%2075013%20Paris,%20France
}
关于objective-c - 我的应用程序在尝试获取包含特殊字符的字符串时崩溃,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/9114710/
我以一种特殊的方式收到以下错误。 The point at which the driver is attempting to click on the element was not scrolle
我有一些包含如下方法的编译库: public boolean foo(String userID) { Class ntSystemClass = Thread.currentThread()
假设我有下表 name | genre --------------------- book 1 | scifi book 2 | horror book 3
我正在用代码进行语言翻译。 self.title.text = [NSString stringWithFormat:NSLocalizedString(@"Q%ld", nil), (long)qu
我想这样做,但到目前为止,我所拥有的只是: print("Will you go out with me?") 我希望代码能够正常工作,以便人们可以回答“是/否”,如果回答是"is",则将返回一条消息
这个问题在这里已经有了答案: 关闭 11 年前。 Possible Duplicate: How can I decode html characters in c#? 我有来自 HTML 的字符,
我想在 JavaScript 中对以下形式的字符串执行 ucwords(),它应该返回 Test1_Test2_Test3。 我已经在 SO 上找到了一个 ucwords 函数,但它只需要空格作为新词
“任何长度的正数表示为数字字符数组,因此介于‘0’和‘9’之间。我们知道最重要的密码位于数组索引 0 的位置。 例子: - 号码是 10282 - 数组将是数字 = [1,0,2,8,2] 考虑到这一
我目前正在开发一个显示特殊 unicode 字符(例如 ꁴ)的应用 现在我遇到了在旧设备上无法显示这些符号的问题。我如何知道它是否适用于当前设备? 我是否必须为每个 SDK 版本创建一个虚拟 Andr
在 HTML、XML 和部分 DTD 中,有两种特殊的标记结构: 以感叹号开头的标签结束,例如 和 以问号开头的标签 ,例如 和 我的问题是,这些构造类型中的每一种是否都有不同的名称,或者我是否必
我目前正在用 python 构建一个 shell。shell 可以执行 python 文件,但我还需要添加使用 PIPE 的选项(例如“|”表示第一个命令的输出将是第二个命令的输入)。 为了做到这一点
我的 MVC 项目中的路由无法正常工作... 我希望我所有的 View 都在 Views > Shared 文件夹中,如下所示: Error.cshtml (default) Index.cshtml
我有一个函数: public static ImageIcon GetIconImageFromResource(String path){ URL url = ARMMain.class.g
好的,所以我想在我的 html 页面中包含下面的字符。看起来很简单,只是我找不到它们的 HTML 编码。 注意:我想在没有大小元素的情况下执行此操作,纯文本就可以了 ^_^。 干杯。 最佳答案 你可以
关闭。这个问题不符合Stack Overflow guidelines .它目前不接受答案。 我们不允许提问寻求书籍、工具、软件库等的推荐。您可以编辑问题,以便用事实和引用来回答。 关闭 3 年前。
我是 C# 的新手,正在尝试使用 ASP.Net GridView(框架 3.5),当 gridView 文本包含以下内容时,我发现了一个大问题: ñ/Ñ/á/Á/é/É/í/Í/ó/Ó/ú/Ú or
在 Java 中,我尝试编写一个正则表达式来匹配特殊类型的 HTTP URL: http:///# 所以字符串有 4 段: 字符串文字:“http://”;那么 任意 1 个以上字符的字符串;那么 字
当我写查询时,我在表中有“to”列 SELECT to FROM mytable mysql_error 返回错误,如果将单词to插入``引号,即 SELECT `to` FROM mytable 查
我遇到了一个问题。事实上,我使用越南语文本,我想找到每个包含大写字母(大写字母)的单词。当我使用“re”模块时,我的函数 (temp) 没有捕捉到像“Đà”这样的词。另一种方法 (temp2) 是一次
在我的文本中,我想用一个空格替换以下特殊字符: symbols = ["`", "~", "!", "@", "#", "$", "%", "^", "&", "*", "(", ")", "_",
我是一名优秀的程序员,十分优秀!