(#) Using deprecated resources !!! WARNING: Using deprecated resources This is a warning. Id : `Deprecated` Summary : Using deprecated resources Severity : Warning Category : Correctness Platform : Android Vendor : Android Open Source Project Feedback : https://issuetracker.google.com/issues/new?component=192708 Since : Initial Affects : Kotlin and Java files, manifest files and resource files Editing : This check runs on the fly in the IDE editor Implementation : [Source Code](https://cs.android.com/android-studio/platform/tools/base/+/mirror-goog-studio-main:lint/libs/lint-checks/src/main/java/com/android/tools/lint/checks/DeprecationDetector.kt) Tests : [Source Code](https://cs.android.com/android-studio/platform/tools/base/+/mirror-goog-studio-main:lint/libs/lint-tests/src/test/java/com/android/tools/lint/checks/DeprecationDetectorTest.kt) Copyright Year : 2011 Deprecated views, attributes and so on are deprecated because there is a better way to do something. Do it that new way. You've been warned. !!! 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 res/layout/deprecation.xml:1:Warning: AbsoluteLayout is deprecated [Deprecated] <AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android" -------------- res/layout/deprecation.xml:15:Warning: android:autoText is deprecated: Use inputType instead [Deprecated] android:autoText="true" ----------------------- res/layout/deprecation.xml:16:Warning: android:capitalize is deprecated: Use inputType instead [Deprecated] android:capitalize="true" ------------------------- res/layout/deprecation.xml:17:Warning: android:editable is deprecated: Use an to make it editable [Deprecated] android:editable="true" ----------------------- res/layout/deprecation.xml:19:Warning: android:inputMethod is deprecated: Use inputType instead [Deprecated] android:inputMethod="@+id/foo" ------------------------------ res/layout/deprecation.xml:20:Warning: android:numeric is deprecated: Use inputType instead [Deprecated] android:numeric="true" ---------------------- res/layout/deprecation.xml:21:Warning: android:password is deprecated: Use inputType instead [Deprecated] android:password="true" ----------------------- res/layout/deprecation.xml:22:Warning: android:phoneNumber is deprecated: Use inputType instead [Deprecated] android:phoneNumber="true" -------------------------- res/layout/deprecation.xml:25:Warning: android:editable is deprecated: is already editable [Deprecated] <EditText android:editable="true" /> ----------------------- res/layout/deprecation.xml:26:Warning: android:editable is deprecated: Use inputType instead [Deprecated] <EditText android:editable="false" /> ------------------------ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Here is the source file referenced above: `res/layout/deprecation.xml`: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~xml linenumbers <AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" > <Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_x="5dp" android:layout_y="100dp" android:text="Button" /> <!-- Deprecated attributes --> <TextView android:autoText="true" android:capitalize="true" android:editable="true" android:enabled="true" android:inputMethod="@+id/foo" android:numeric="true" android:password="true" android:phoneNumber="true" android:singleLine="true" /> <EditText android:editable="true" /> <EditText android:editable="false" /> </AbsoluteLayout> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ You can also visit the [source code](https://cs.android.com/android-studio/platform/tools/base/+/mirror-goog-studio-main:lint/libs/lint-tests/src/test/java/com/android/tools/lint/checks/DeprecationDetectorTest.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, `DeprecationDetector.testApi4`. To report a problem with this extracted sample, visit https://issuetracker.google.com/issues/new?component=192708. (##) Suppressing You can suppress false positives using one of the following mechanisms: * Adding the suppression attribute `tools:ignore="Deprecated"` on the problematic XML element (or one of its enclosing elements). You may also need to add the following namespace declaration on the root element in the XML file if it's not already there: `xmlns:tools="http://schemas.android.com/tools"`. ```xml <?xml version="1.0" encoding="UTF-8"?> <manifest xmlns:tools="http://schemas.android.com/tools"> ... <AbsoluteLayout sharedUserId="..." tools:ignore="Deprecated" .../> ... </manifest> ``` * Using a suppression annotation like this on the enclosing element: ```kt // Kotlin @Suppress("Deprecated") fun method() { getInstance(...) } ``` or ```java // Java @SuppressWarnings("Deprecated") void method() { getInstance(...); } ``` * Using a suppression comment like this on the line above: ```kt //noinspection Deprecated 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="Deprecated" 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 'Deprecated' } ``` In Android projects this should be nested inside an `android { }` block. * For manual invocations of `lint`, using the `--ignore` flag: ``` $ lint --ignore Deprecated ...` ``` * Last, but not least, using baselines, as discussed [here](https://googlesamples.github.io/android-custom-lint-rules/usage/baselines.md.html).