Unity UGUI adds Material (material)

1.  When adding Material  to UGUI , if the Shader in Material   does not do special processing, then this component will become pure black.
2. If you need to add Material  , you need to do UGUI-  specific processing in Shader  .

   	Properties 
       {
   	    //UI部分添加
   		[Header(UIProperties)]
   		_StencilComp("Stencil Comparison", Float) = 8
   		_Stencil("Stencil ID", Float) = 0
   		_StencilOp("Stencil Operation", Float) = 0
   		_StencilWriteMask("Stencil Write Mask", Float) = 255
   		_StencilReadMask("Stencil Read Mask", Float) = 255
   		//UI部分添加
   	}
   	SubShader 
       {
           //UI部分添加
   		Cull Off//剔除
   		Lighting Off//光照关闭
   		ZWrite Off//深度写入关闭
   		Blend One OneMinusSrcAlpha//混合模式
           //UI部分添加
       }

3. Add the above code in Shader  , then bind Material  to UGUI again .