(#) Use getLayoutInflater() to get the LayoutInflater instead of calling LayoutInflater.from(Context) !!! WARNING: Use getLayoutInflater() to get the LayoutInflater instead of calling LayoutInflater.from(Context) This is a warning. Id : `UseGetLayoutInflater` Summary : Use getLayoutInflater() to get the LayoutInflater instead of calling LayoutInflater.from(Context) Severity : Warning Category : Correctness Platform : Android Vendor : Android Open Source Project Identifier : androidx.fragment Feedback : https://issuetracker.google.com/issues/new?component=460964 Min : Lint 7.0 Compiled : Lint 8.0 and 8.1 Artifact : [androidx.fragment:fragment](androidx_fragment_fragment.md.html) Since : 1.4.0 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:/fragment/fragment-lint/src/main/java/androidx/fragment/lint/UseGetLayoutInflater.kt) Tests : [Source Code](https://cs.android.com/androidx/platform/frameworks/support/+/androidx-main:/fragment/fragment-lint/src/test/java/androidx/fragment/lint/UseGetLayoutInflaterTest.kt) Copyright Year : 2021 Using LayoutInflater.from(Context) can return a LayoutInflater that does not have the correct theme. !!! Tip This lint check has an associated quickfix available in the IDE. (##) Example Here is an example of lint warnings produced by this check: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~text src/foo/TestFragment.java:16:Warning: Use of LayoutInflater.from(requireContext()) detected. Consider using getLayoutInflater() instead [UseGetLayoutInflater] LayoutInflater li = LayoutInflater.from(requireContext()); ------------------------------------- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Here is the source file referenced above: `src/foo/TestFragment.java`: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~java linenumbers package foo; import android.os.Bundle; import android.view.LayoutInflater; import android.view.LayoutInflater123; import android.view.View; import android.view.ViewGroup; import androidx.annotation.NonNull; import androidx.annotation.Nullable; import androidx.fragment.app.DialogFragment; public class TestFragment extends DialogFragment { @Nullable @Override public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { LayoutInflater li = LayoutInflater.from(requireContext()); // this will not be triggered LayoutInflater123 li123 = LayoutInflater123.from(requireContext()); return super.onCreateView(inflater, container, savedInstanceState); } } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ You can also visit the [source code](https://cs.android.com/androidx/platform/frameworks/support/+/androidx-main:/fragment/fragment-lint/src/test/java/androidx/fragment/lint/UseGetLayoutInflaterTest.kt) for the unit tests for this check to see additional scenarios. The above example was automatically extracted from the first unit test found for this lint check, `UseGetLayoutInflater.java expect fail dialog fragment with fix`. To report a problem with this extracted sample, visit https://issuetracker.google.com/issues/new?component=460964. (##) Including !!! This is not a built-in check. To include it, add the below dependency to your project. ``` // build.gradle.kts implementation("androidx.fragment:fragment:1.8.5") // build.gradle implementation 'androidx.fragment:fragment:1.8.5' // build.gradle.kts with version catalogs: implementation(libs.fragment) # libs.versions.toml [versions] fragment = "1.8.5" [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: fragment = { module = "androidx.fragment:fragment", version.ref = "fragment" } ``` 1.8.5 is the version this documentation was generated from; there may be newer versions available. [Additional details about androidx.fragment:fragment](androidx_fragment_fragment.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("UseGetLayoutInflater") fun method() { from(...) } ``` or ```java // Java @SuppressWarnings("UseGetLayoutInflater") void method() { from(...); } ``` * Using a suppression comment like this on the line above: ```kt //noinspection UseGetLayoutInflater 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="UseGetLayoutInflater" 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 'UseGetLayoutInflater' } ``` In Android projects this should be nested inside an `android { }` block. * For manual invocations of `lint`, using the `--ignore` flag: ``` $ lint --ignore UseGetLayoutInflater ...` ``` * Last, but not least, using baselines, as discussed [here](https://googlesamples.github.io/android-custom-lint-rules/usage/baselines.md.html).