clean up drag2d (#809)

Author: jafu888

demoProjects/Drag2D/app/build.gradle

@@ -32,8 +32,4 @@ dependencies {
 
     implementation 'androidx.appcompat:appcompat:1.6.1'
     implementation 'com.google.android.material:material:1.8.0'
-    implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
-    testImplementation 'junit:junit:4.13.2'
-    androidTestImplementation 'androidx.test.ext:junit:1.1.5'
-    androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
 }

demoProjects/Drag2D/app/src/androidTest/java/android/support/drag2d/ExampleInstrumentedTest.java

@@ -4,10 +4,8 @@
 
     <application
         android:allowBackup="true"
-        android:dataExtractionRules="@xml/data_extraction_rules"
-        android:fullBackupContent="@xml/backup_rules"
         android:icon="@mipmap/ic_launcher"
-        android:label="@string/app_name"
+        android:label="Drag2D Motion"
         android:supportsRtl="true"
         android:theme="@style/Theme.Drag2D"
         tools:targetApi="31">
@@ -20,6 +18,15 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity
+            android:name=".DragCardActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+<!--                <category android:name="android.intent.category.LAUNCHER" />-->
+            </intent-filter>
+        </activity>
     </application>
 
 </manifest>