(#) Missing MEDIA_PLAY_FROM_SEARCH intent-filter
!!! ERROR: Missing MEDIA_PLAY_FROM_SEARCH intent-filter
This is an error.
Id
: `MissingIntentFilterForMediaSearch`
Summary
: Missing MEDIA_PLAY_FROM_SEARCH intent-filter
Severity
: Error
Category
: Correctness
Platform
: Android
Vendor
: Android Open Source Project
Feedback
: https://issuetracker.google.com/issues/new?component=192708
Since
: 1.5.0 (November 2015)
Affects
: Kotlin and Java files, manifest files and resource files
Editing
: This check runs on the fly in the IDE editor
See
: https://developer.android.com/training/auto/audio/index.html#support_voice
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/AndroidAutoDetector.java)
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/AndroidAutoDetectorTest.java)
To support voice searches on Android Auto, you should also register an
`intent-filter` for the action
`android.media.action.MEDIA_PLAY_FROM_SEARCH`.
To do this, add
```xml
``
``
``
```
to your `` or ``.
(##) Example
Here is an example of lint warnings produced by this check:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~text
AndroidManifest.xml:6:Error: Missing intent-filter for action
android.media.action.MEDIA_PLAY_FROM_SEARCH.
[MissingIntentFilterForMediaSearch]
<application
^
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Here are the relevant source files:
`AndroidManifest.xml`:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~xml linenumbers
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.example.android.uamp">
<application
android:name=".UAMPApplication"
android:label="@string/app_name"
android:theme="@style/UAmpAppTheme">
<meta-data
android:name="com.google.android.gms.car.application"
android:resource="@xml/automotive_app_desc"/>
<service
android:name=".MusicService"
android:exported="true"
tools:ignore="ExportedService">
<intent-filter>
<action android:name="android.media.browse.MediaBrowserService"/>
</intent-filter>
</service>
</application>
</manifest>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
`res/xml/automotive_app_desc.xml`:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~xml linenumbers
<?xml version="1.0" encoding="utf-8"?>
<automotiveApp>
<uses name="media"/>
</automotiveApp>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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/AndroidAutoDetectorTest.java)
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, `AndroidAutoDetector.testMissingMediaSearchIntent`.
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="MissingIntentFilterForMediaSearch"` 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">
...
<automotiveApp tools:ignore="MissingIntentFilterForMediaSearch" .../>
...
</manifest>
```
* Using a suppression annotation like this on the enclosing
element:
```kt
// Kotlin
@Suppress("MissingIntentFilterForMediaSearch")
fun method() {
problematicStatement()
}
```
or
```java
// Java
@SuppressWarnings("MissingIntentFilterForMediaSearch")
void method() {
problematicStatement();
}
```
* Using a suppression comment like this on the line above:
```kt
//noinspection MissingIntentFilterForMediaSearch
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="MissingIntentFilterForMediaSearch" 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 'MissingIntentFilterForMediaSearch'
}
```
In Android projects this should be nested inside an `android { }`
block.
* For manual invocations of `lint`, using the `--ignore` flag:
```
$ lint --ignore MissingIntentFilterForMediaSearch ...`
```
* Last, but not least, using baselines, as discussed
[here](https://googlesamples.github.io/android-custom-lint-rules/usage/baselines.md.html).