Play store reports “Your device isn't compatible with this version” but it installs via adb just fine on Nexus7

问题

I have an app I released to a private Google Play beta. I can install this exact same APK to my Nexus 7 just fine with

adb pm install

but through the Google Play store it is marked for this exact same Nexus7 as

Your device isn't compatible with this version.

This is the same apk. I can't figure out how to get any information on why the play store thinks it's not compatible.

My manifest looks like this:

<uses-sdk android:minSdkVersion="10" />

<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.CAMERA"></uses-permission>
<uses-permission android:name="android.permission.RECORD_AUDIO"></uses-permission>
<uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>
<uses-permission android:name="android.permission.WAKE_LOCK"></uses-permission>
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.GET_TASKS" />

<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />

<application android:icon="@drawable/icon" android:label="@string/app_name">
    <activity android:name=".foobar"
              android:label="@string/app_name"
              android:screenOrientation="portrait">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

    <service android:name=".fooservice" android:exported="false" android:enabled="true" android:label="@string/app_name" android:icon="@drawable/icon">
    </service>

</application>

Any help on determining why Google Play thinks it is not compatible?

回答1:

That's completely correct this behavior: please refer to the official documentation here http://developer.android.com/guide/topics/manifest/uses-feature-element.html.

That's the relevant part:

Declared <uses-feature> elements are informational only, meaning that the Android system itself does not check for matching feature support on the device before installing an application. However, other services (such as Google Play) or applications may check your application's <uses-feature> declarations as part of handling or interacting with your application. For this reason, it's very important that you declare all of the features (from the list below) that your application uses.

So the fact you're able to install the apk through adb is not a proof for a particular device to be filtered off or not.

Also, check here: http://developer.android.com/guide/topics/manifest/uses-permission-element.html

In some cases, the permissions that you request through can affect how your application is filtered by Google Play.

If you request a hardware-related permission — CAMERA, for example — Google Play assumes that your application requires the underlying hardware feature and filters the application from devices that do not offer it.

Update: you've confirmed you're using the Nexus 7 2012, so please refer to this official blog post: http://android-developers.blogspot.ch/2012/07/getting-your-app-ready-for-jelly-bean.html.

Google states "apps requiring the android.hardware.camera feature will not be available on Nexus 7".

If you need that permission because you use the camera in your app, you can do it programmatically as explained in http://developer.android.com/guide/topics/media/camera.html#detect-camera.

回答2:

This happened to my app a couple of times. It turned out the camera requirement was causing this error when the device user had never used the camera since purchase.

I change the camera requirement to not be required by the following:

<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" android:required="false" />
<uses-feature android:name="android.hardware.camera.autofocus" android:required="false" />

回答3:

You should read/follow this link from Reto Meier.

As said in the link from now on you need to specify your app features.

Basically a quick solution is to run aapt dump badging {your apk} and verify which features your app is using. Then add the ones that do not affect your app usability to your manifest with required field set to false. e.g. <uses-feature android:name="android.hardware.camera" android:required="false" />

That should be enough.