(#) Wrong usage of repeatOnLifecycle !!! ERROR: Wrong usage of repeatOnLifecycle This is an error. Id : `RepeatOnLifecycleWrongUsage` Summary : Wrong usage of repeatOnLifecycle Severity : Error Category : Correctness Platform : Android Vendor : Android Open Source Project Identifier : androidx.lifecycle Feedback : https://issuetracker.google.com/issues/new?component=413132 Min : Lint 8.0 and 8.1 Compiled : Lint 8.7+ Artifact : [androidx.lifecycle:lifecycle-runtime-android](androidx_lifecycle_lifecycle-runtime-android.md.html) Since : 2.4.0 Affects : Kotlin and Java files Editing : This check runs on the fly in the IDE editor Implementation : [Source Code](https://cs.android.com/androidx/platform/frameworks/support/+/androidx-main:/lifecycle/lifecycle-runtime-lint/src/main/java/androidx/lifecycle/lint/RepeatOnLifecycleDetector.kt) Tests : [Source Code](https://cs.android.com/androidx/platform/frameworks/support/+/androidx-main:/lifecycle/lifecycle-runtime-lint/src/test/java/androidx/lifecycle/runtime/lint/RepeatOnLifecycleDetectorTest.kt) Copyright Year : 2021 The repeatOnLifecycle APIs should be used when the View is created, that is in the `onCreate` lifecycle method for Activities, or `onViewCreated` in case you're using Fragments. (##) Repackaged This lint check appears to have been packaged in other artifacts as well. Issue id's must be unique, so you cannot combine these libraries. Also defined in: * RepeatOnLifecycleWrongUsage: Wrong usage of repeatOnLifecycle (this issue) * [RepeatOnLifecycleWrongUsage from androidx.lifecycle:lifecycle-runtime-android:2.9.0-alpha08](RepeatOnLifecycleWrongUsage.md.html) * [RepeatOnLifecycleWrongUsage from androidx.lifecycle:lifecycle-runtime-ktx:2.8.0-alpha01](RepeatOnLifecycleWrongUsage-2.md.html) (##) Including !!! This is not a built-in check. To include it, add the below dependency to your project. ``` // build.gradle.kts implementation("androidx.lifecycle:lifecycle-runtime-android:2.9.0-alpha08") // build.gradle implementation 'androidx.lifecycle:lifecycle-runtime-android:2.9.0-alpha08' // build.gradle.kts with version catalogs: implementation(libs.lifecycle.runtime.android) # libs.versions.toml [versions] lifecycle-runtime-android = "2.9.0-alpha08" [libraries] # For clarity and text wrapping purposes the following declaration is # shown split up across lines, but in TOML it needs to be on a single # line (see https://github.com/toml-lang/toml/issues/516) so adjust # when pasting into libs.versions.toml: lifecycle-runtime-android = { module = "androidx.lifecycle:lifecycle-runtime-android", version.ref = "lifecycle-runtime-android" } ``` 2.9.0-alpha08 is the version this documentation was generated from; there may be newer versions available. [Additional details about androidx.lifecycle:lifecycle-runtime-android](androidx_lifecycle_lifecycle-runtime-android.md.html). (##) Suppressing You can suppress false positives using one of the following mechanisms: * Using a suppression annotation like this on the enclosing element: ```kt // Kotlin @Suppress("RepeatOnLifecycleWrongUsage") fun method() { problematicStatement() } ``` or ```java // Java @SuppressWarnings("RepeatOnLifecycleWrongUsage") void method() { problematicStatement(); } ``` * Using a suppression comment like this on the line above: ```kt //noinspection RepeatOnLifecycleWrongUsage problematicStatement() ``` * Using a special `lint.xml` file in the source tree which turns off the check in that folder and any sub folder. A simple file might look like this: ```xml <?xml version="1.0" encoding="UTF-8"?> <lint> <issue id="RepeatOnLifecycleWrongUsage" severity="ignore" /> </lint> ``` Instead of `ignore` you can also change the severity here, for example from `error` to `warning`. You can find additional documentation on how to filter issues by path, regular expression and so on [here](https://googlesamples.github.io/android-custom-lint-rules/usage/lintxml.md.html). * In Gradle projects, using the DSL syntax to configure lint. For example, you can use something like ```gradle lintOptions { disable 'RepeatOnLifecycleWrongUsage' } ``` In Android projects this should be nested inside an `android { }` block. * For manual invocations of `lint`, using the `--ignore` flag: ``` $ lint --ignore RepeatOnLifecycleWrongUsage ...` ``` * Last, but not least, using baselines, as discussed [here](https://googlesamples.github.io/android-custom-lint-rules/usage/baselines.md.html).