JMessage-iOS-SDK
Jump To… Overview Tasks extras - addStringExtra:forKey: - addNumberExtra:forKey: - toJsonString - isEqualToContent:
| Inherits from | NSObject |
|---|---|
| Conforms to | NSCopying |
| Declared in | JMSGAbstractContent.h |
###
// 转移到子类举例JMSGAbstractContent content = oneMessage.content;if (oneMessage.contentType == kJMSGContentTypeText) {JMSGTextContent textContent = (JMSGTextContent )content;String text = textContent.text;}
extras
附加参数
@property (nonatomic, strong, readonly) NSDictionary \extras
#### Discussion
对某个类型的消息, 比如 VoiceContent, 可以附加参数以便用于业务逻辑
#### Declared In
JMSGAbstractContent.h
### – addStringExtra:forKey:
增加一个字符串值类型的字段
- (BOOL)addStringExtra:(NSString *)value forKey:(NSString *)key
#### Parameters
value | 新增键值对的值. String 类型. |
|---|---|
key | 新增键值对的键 |
JMSGAbstractContent.h
### – addNumberExtra:forKey:
增加一个数字值类型的字段
- (BOOL)addNumberExtra:(NSNumber *)value forKey:(NSString *)key
#### Parameters
value | 新增键值对的值. Number 类型. |
|---|---|
key | 新增键值对的键 |
JMSGAbstractContent.h
### – toJsonString
调用此方法得到 JSON 格式描述的 Message Content
- (NSString *)toJsonString
#### Declared In
JMSGAbstractContent.h
### – isEqualToContent:
判断消息内容是否相等
- (BOOL)isEqualToContent:(JMSGAbstractContent *JMSG_NULLABLE)content
#### Parameters
content | 比较的内容对象 |
|---|
JMSGAbstractContent.h
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