android: add android:exported="true"

samples/android/15-puzzle/gradle/AndroidManifest.xml

@@ -8,6 +8,7 @@
         android:label="@string/app_name">
 
         <activity
+            android:exported="true"
             android:name=".Puzzle15Activity"
             android:label="@string/app_name"
             android:screenOrientation="landscape"

samples/android/camera-calibration/gradle/AndroidManifest.xml

@@ -7,7 +7,9 @@
         android:label="@string/app_name"
         android:icon="@drawable/icon">
 
-        <activity android:name="CameraCalibrationActivity"
+        <activity
+                  android:exported="true"
+                  android:name="CameraCalibrationActivity"
                   android:label="@string/app_name"
                   android:screenOrientation="landscape"
                   android:configChanges="keyboardHidden|orientation">

samples/android/color-blob-detection/gradle/AndroidManifest.xml

@@ -8,7 +8,9 @@
         android:icon="@drawable/icon"
         android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
 
-        <activity android:name="ColorBlobDetectionActivity"
+        <activity
+                  android:exported="true"
+                  android:name="ColorBlobDetectionActivity"
                   android:label="@string/app_name"
                   android:screenOrientation="landscape"
                   android:configChanges="keyboardHidden|orientation">

samples/android/face-detection/gradle/AndroidManifest.xml

@@ -7,7 +7,9 @@
         android:label="@string/app_name"
         android:icon="@drawable/icon">
 
-        <activity android:name="FdActivity"
+        <activity
+                  android:exported="true"
+                  android:name="FdActivity"
                   android:label="@string/app_name"
                   android:screenOrientation="landscape"
                   android:configChanges="keyboardHidden|orientation">

samples/android/image-manipulations/gradle/AndroidManifest.xml

@@ -7,7 +7,9 @@
         android:label="@string/app_name"
         android:icon="@drawable/icon">
 
-        <activity android:name="ImageManipulationsActivity"
+        <activity
+                  android:exported="true"
+                  android:name="ImageManipulationsActivity"
                   android:label="@string/app_name"
                   android:screenOrientation="landscape"
                   android:configChanges="keyboardHidden|orientation">

samples/android/mobilenet-objdetect/gradle/AndroidManifest.xml

@@ -10,7 +10,9 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.AppCompat.NoActionBar">  <!--Full screen mode-->
-        <activity android:name=".MainActivity"
+        <activity
+                  android:exported="true"
+                  android:name=".MainActivity"
                   android:screenOrientation="landscape">  <!--Screen orientation-->
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

samples/android/tutorial-1-camerapreview/gradle/AndroidManifest.xml

@@ -8,7 +8,9 @@
         android:icon="@drawable/icon"
         android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
 
-        <activity android:name="Tutorial1Activity"
+        <activity
+                  android:exported="true"
+                  android:name="Tutorial1Activity"
                   android:label="@string/app_name"
                   android:screenOrientation="landscape"
                   android:configChanges="keyboardHidden|orientation">

samples/android/tutorial-2-mixedprocessing/gradle/AndroidManifest.xml

@@ -7,7 +7,9 @@
         android:label="@string/app_name"
         android:icon="@drawable/icon">
 
-        <activity android:name="Tutorial2Activity"
+        <activity
+                  android:exported="true"
+                  android:name="Tutorial2Activity"
                   android:label="@string/app_name"
                   android:screenOrientation="landscape"
                   android:configChanges="keyboardHidden|orientation">

samples/android/tutorial-3-cameracontrol/gradle/AndroidManifest.xml

@@ -7,7 +7,9 @@
         android:label="@string/app_name"
         android:icon="@drawable/icon">
 
-        <activity android:name="Tutorial3Activity"
+        <activity
+                  android:exported="true"
+                  android:name="Tutorial3Activity"
                   android:label="@string/app_name"
                   android:screenOrientation="landscape"
                   android:configChanges="keyboardHidden|orientation">

samples/android/tutorial-4-opencl/gradle/AndroidManifest.xml

@@ -17,6 +17,7 @@
         android:allowBackup="true"
         android:icon="@drawable/icon">
         <activity
+            android:exported="true"
             android:name=".Tutorial4Activity"
             android:label="@string/app_name"
             android:screenOrientation="landscape"