Wrong View Id Format

ID

java.android_wrong_view_id_format

Severity

info

Remediation Complexity

trivial

Remediation Risk

medium

Remediation Effort

low

Resource

Naming Convention

Language

Java

Tags

android, naming

Description

Flags android:id attribute values whose bare id name does not follow the recommended @+id/snake_case_lowercase convention.

Rationale

A consistent id naming convention keeps R.id.* references discoverable and avoids inconsistencies between layouts written by different developers. The Android tooling and the community-standard ribot guidelines recommend lowercase snake_case ids that start with a letter.

The rule rejects id names that:

  • contain an uppercase letter (e.g. @+id/myView)

  • contain a dash (e.g. @+id/my-view)

  • start with a digit (e.g. @+id/1stItem)

<!-- Bad: camelCase id -->
<TextView android:id="@+id/myTitleView" />

Remediation

Rename the id to use lowercase letters, digits and underscores.

<!-- Good: snake_case lowercase id -->
<TextView android:id="@+id/my_title_view" />

Remember to update any matching R.id.myTitleView references in source code after renaming.

References