V2NIMMessageSource.java

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package com.netease.nimlib.sdk.v2.message.enums;

import androidx.annotation.IntDef;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;

@IntDef({
    V2NIMMessageSource.V2NIM_MESSAGE_SOURCE_UNKNOWN,
    V2NIMMessageSource.V2NIM_MESSAGE_SOURCE_ONLINE,
    V2NIMMessageSource.V2NIM_MESSAGE_SOURCE_OFFLINE,
    V2NIMMessageSource.V2NIM_MESSAGE_SOURCE_ROAMING
})
@Retention(RetentionPolicy.SOURCE)
public @interface V2NIMMessageSource {
    
    // 可以定义常量
    int V2NIM_MESSAGE_SOURCE_UNKNOWN = 0;
    int V2NIM_MESSAGE_SOURCE_ONLINE = 1;
    int V2NIM_MESSAGE_SOURCE_OFFLINE = 2;
    int V2NIM_MESSAGE_SOURCE_ROAMING = 3;
}