“无法解析符号"使用android:id =“" @ + android:id/my_id“时出错 [英] "Cannot Resolve Symbol" Error when using android:id="@+android:id/my_id"

问题描述

当我向名称空间添加android:id/background时，Lint抱怨它无法解析符号"，即使我请求添加它而不是调用它.该代码按编写的方式工作，但错误仍然存​​在.当我更改<item android:id="@+android:id/background" to <item android:id="@+id/background"时，应用程序停止工作(另一个调用中断).我的问题是:为什么Lint不能识别我将android:id/background添加到名称空间，即使对其的调用功能正常?有什么更好的方法可以为该商品提供不会掉毛的ID?

When I am adding android:id/background to the namespace, Lint complains that it "Cannot Resolve Symbol" even though I am requesting to add it rather than call it. The code works as written, but the error persists. When I change <item android:id="@+android:id/background" to <item android:id="@+id/background", the application stops working (another call breaks). My question is: why does Lint not recognize me adding android:id/background to the namespace even though a call to it functions well? Is there some better way to give this item an id that won't have Lint throw an error?

下面的层列表中所有三个名称空间项的定义都引发了lint错误:

All three of the namespace definitions for the items in the layer-list below throw a lint error:

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@+android:id/background"
        android:drawable="@drawable/custom_ratingbar_empty" />
    <item android:id="@+android:id/secondaryProgress"
        android:drawable="@drawable/custom_ratingbar_empty" />
    <item android:id="@+android:id/progress"
        android:drawable="@drawable/custom_ratingbar_filled" />
</layer-list>

我发现了此，并尝试运行build-> clean没有成功.

I found this and tried running build->clean as suggested with no success.

推荐答案

如果要创建自己的ID:

If you are creating your own id:

"@+id/your_new_id"

如果您正在访问已创建的ID

if you are accessing your already created id

"@id/your_old_id"

如果您尝试访问Android系统创建的ID

if you are trying to access Android's system created id

"@android:id/system_id"

您可以看到区别，如果您要创建自己的ID，则必须添加+.由于您正在访问系统ID，因此不必添加+

you can see the difference, if you are creating your own id then you have to add +. Since you are accessing system ID so you don't have to add +

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