我们可以创建在 Android 电视、平板电脑和 Android 手机上运行的应用程序吗？

Question

I just want to know that can i create one android studio project which can run on Android TV, tablets, and Android smartphones?

Answer 1

Yes you can.While starting new project there is option for selecting template for Phone and tablet,Wear OS,Android TV etc like below image.

Answer 2

You need to implement the leanback support library in order for your app to support Android TV.

Check this for the implementation steps.

Answer 3

Yes, you can. Your app needs to declare the intent filter for both mobile and Android TV. Typically these should be different activities since the UI is usually different, but they can also point to the same activity if you're programmatically choosing the correct UI based on the device.

Here's an example of the manifest:

<application
  android:banner="@drawable/banner" >
  ...
  <activity
    android:name="com.example.android.MainActivity"
    android:label="@string/app_name" >

    <intent-filter>
      <action android:name="android.intent.action.MAIN" />
      <category android:name="android.intent.category.LAUNCHER" />
    </intent-filter>
  </activity>

  <activity
    android:name="com.example.android.TvActivity"
    android:label="@string/app_name"
    android:theme="@style/Theme.Leanback">

    <intent-filter>
      <action android:name="android.intent.action.MAIN" />
      <category android:name="android.intent.category.LEANBACK_LAUNCHER" />
    </intent-filter>

  </activity>
</application>

If you're starting a completely fresh Android Studio project, I'd recommend starting with a mobile template first and then manually updating the manifest. See the getting started guide for more info, including the intent filter, the banner, the "leanback" feature, and more.