# TRTCNetworkQosParam class Null safety

网络流控相关参数

该设置决定 SDK 在各种网络环境下的调控方向（例如弱网下选择“保清晰”或“保流畅”）

## Constructors

TRTCNetworkQosParam({int preference = 2, int controlMode = 1})

## Properties

controlMode ↔ int
  【字段含义】视频分辨率（云端控制 - 客户端控制） [...]
  read / write
hashCode → int
  The hash code for this object. [...]
  read-only, inherited
preference ↔ int
  【字段含义】弱网下选择“保清晰”或“保流畅” [...]
  read / write
runtimeType → Type
  A representation of the runtime type of the object.
  read-only, inherited

## Methods

noSuchMethod(Invocation invocation) → dynamic
  Invoked when a non-existent method or property is accessed. [...]
  inherited
toJson() → Map<String, dynamic>
toString() → String
  A string representation of this object. [...]
  inherited

## Operators

operator ==(Object other) → bool
  The equality operator. [...]
  inherited