feature: add leanback for android tv compatiblity

V2rayNG/app/build.gradle

@@ -87,6 +87,7 @@ android {
 
     buildFeatures {
         viewBinding true
+        buildConfig true
     }
     namespace 'com.v2ray.ang'
     testNamespace 'com.v2ray.angTest'

V2rayNG/app/src/androidTest/java/com/v2ray/ang/ApplicationTest.java

@@ -1,13 +0,0 @@
-package com.v2ray.ang;
-
-import android.app.Application;
-import android.test.ApplicationTestCase;
-
-/**
- * <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
- */
-public class ApplicationTest extends ApplicationTestCase<Application> {
-    public ApplicationTest() {
-        super(Application.class);
-    }
-}

V2rayNG/app/src/main/AndroidManifest.xml

@@ -11,6 +11,8 @@
 
     <uses-feature android:name="android.hardware.camera" android:required="false"/>
     <uses-feature android:name="android.hardware.camera.autofocus" android:required="false"/>
+    <uses-feature android:name="android.software.leanback" android:required="false" />
+    <uses-feature android:name="android.hardware.touchscreen" android:required="false" />
 
     <!-- https://developer.android.com/about/versions/11/privacy/package-visibility -->
     <uses-permission android:name="android.permission.QUERY_ALL_PACKAGES"
@@ -31,6 +33,7 @@
         android:name=".AngApplication"
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
+        android:banner="@mipmap/ic_banner"
         android:label="@string/app_name"
         android:supportsRtl="true"
         android:theme="@style/AppThemeDayNight"
@@ -45,6 +48,7 @@
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
+                <category android:name="android.intent.category.LEANBACK_LAUNCHER"/>
             </intent-filter>
             <intent-filter>
                 <action android:name="android.service.quicksettings.action.QS_TILE_PREFERENCES" />

V2rayNG/app/src/main/kotlin/com/v2ray/ang/ui/MainActivity.kt

@@ -613,13 +613,14 @@ class MainActivity : BaseActivity(), NavigationView.OnNavigationItemSelectedList
 //    }
 
     override fun onKeyDown(keyCode: Int, event: KeyEvent): Boolean {
-        if (keyCode == KeyEvent.KEYCODE_BACK) {
+        if (keyCode == KeyEvent.KEYCODE_BACK || keyCode == KeyEvent.KEYCODE_BUTTON_B) {
             moveTaskToBack(false)
             return true
         }
         return super.onKeyDown(keyCode, event)
     }
 
+
     fun showCircle() {
         binding.fabProgressCircle.show()
     }

V2rayNG/app/src/main/kotlin/com/v2ray/ang/util/Utils.kt

@@ -7,6 +7,7 @@ import android.util.Base64
 import java.util.*
 import android.content.ClipData
 import android.content.Intent
+import android.content.pm.PackageManager
 import android.content.res.Configuration.UI_MODE_NIGHT_MASK
 import android.content.res.Configuration.UI_MODE_NIGHT_YES
 import android.net.Uri
@@ -399,5 +400,9 @@ object Utils {
         return URL(url.protocol, IDN.toASCII(url.host, IDN.ALLOW_UNASSIGNED), url.port, url.file)
             .toExternalForm()
     }
+
+    fun isTv(context: Context): Boolean =
+        context.packageManager.hasSystemFeature(PackageManager.FEATURE_LEANBACK)
+
 }
 

V2rayNG/app/src/main/res/mipmap-anydpi-v26/ic_banner.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_banner_background"/>
+    <foreground>
+        <inset android:drawable="@mipmap/ic_banner_foreground" android:inset="10%"/>
+    </foreground>
+</adaptive-icon>

V2rayNG/app/src/main/res/values/ic_banner_background.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_banner_background">#FFFFFF</color>
+</resources>