Issues to be aware of when Android creates custom View properties (attrs)

Customizing View properties is not difficult, you can refer to the official documentation

Https://developer.android.com/training/custom-views/create-view.html

But you need to pay attention to a problem, otherwise you may waste a lot of time.

<resources>    <declare-styleable name= "Appscontrollerblock" >        <attr name= "Lettercase" format= "Enum" >            <enum name= "defaultcase" value= "0"/>            <enum name= "uppercase" value= "1"/>            < Enum name= "lowercase" value= "2"/>        </attr>    </declare-styleable></resources>

The name of the parameter cannot be the same as the reserved word. For example, you can't call Case,return,default.

Otherwise will be in compile times wrong, processreleaseresources faild ...

Issues to be aware of when Android creates custom View properties (attrs)