added android demo

WORKSPACE

@@ -415,6 +415,7 @@ maven_install(
         "com.google.guava:listenablefuture:1.0",
         "junit:junit:4.12",
         "org.hamcrest:hamcrest-library:1.3",
+        "com.afollestad.material-dialogs:core:0.9.6.0",
     ],
     fetch_sources = True,
     repositories = [

mediapipe/examples/android/solutions/posetracking-lindera/src/main/BUILD

@@ -25,7 +25,7 @@ android_binary(
         "applicationId": "com.google.mediapipe.examples.posetracking_lindera",
     },
     multidex = "native",
-    resource_files = ["//mediapipe/examples/android/solutions:resource_files"],
+    resource_files = [":resource_files"],
     deps = [
         "//mediapipe/framework/formats:detection_java_proto_lite",
         "//mediapipe/framework/formats:landmark_java_proto_lite",
@@ -48,5 +48,12 @@ android_binary(
         "@maven//:androidx_exifinterface_exifinterface",
         "@maven//:androidx_fragment_fragment",
         "@maven//:com_google_guava_guava",
+        "@maven//:com_afollestad_material_dialogs_core",
     ],
 )
+
+filegroup(
+    name = "resource_files",
+    srcs = glob(["res/**"]),
+    #    visibility = ["//mediapipe/examples/android/solutions:__subpackages__"],
+)

mediapipe/examples/android/solutions/posetracking-lindera/src/main/java/com/google/mediapipe/examples/posetracking_lindera/MainActivity.java

@@ -15,17 +15,24 @@
 package com.google.mediapipe.examples.posetracking_lindera;
 
 import android.os.Bundle;
+import android.os.Handler;
+import android.os.Looper;
 import android.view.View;
 import android.widget.Button;
 import android.widget.FrameLayout;
+import android.widget.ProgressBar;
 
 import androidx.appcompat.app.AppCompatActivity;
 
+import com.afollestad.materialdialogs.MaterialDialog;
 import com.google.mediapipe.solutions.lindera.CameraRotation;
 import com.google.mediapipe.solutions.lindera.ComputerVisionPlugin;
 import com.google.mediapipe.solutions.lindera.Lindera;
 
+import java.util.Arrays;
 import java.util.List;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
 
 
 /**
@@ -47,8 +54,8 @@ public class MainActivity extends AppCompatActivity {
         setContentView(R.layout.activity_main);
 
 
-        disableRedundantUI();
+        findViewById(R.id.button_set_model).setVisibility(View.GONE);
-
+        findViewById(R.id.button_toggle_landmarks).setVisibility(View.GONE);
         setupLiveDemoUiComponents();
         plugin = new ComputerVisionPluginImpl();
         lindera = new Lindera(plugin);
@@ -65,45 +72,125 @@ public class MainActivity extends AppCompatActivity {
      */
     private void setupLiveDemoUiComponents() {
 
-        Button startCameraButton = findViewById(R.id.button_start_camera);
+        Button startDetectionButton = findViewById(R.id.button_start_detection);
+        Button toggleLandmarks = findViewById(R.id.button_toggle_landmarks);
+        Button modelComplexity = findViewById(R.id.button_set_model);
         FrameLayout frameLayout = findViewById(R.id.preview_display_layout);
-
+        startDetectionButton.setOnClickListener(
-        startCameraButton.setOnClickListener(
                 v -> {
 //                    startCameraButton.setVisibility(View.GONE);
                     if (!isLinderaInitialized) {
-                        lindera.initialize(frameLayout, MainActivity.this);
+                        modelLoadAsyncDialogue(()->{
-                        isLinderaInitialized = true;
+                            lindera.initialize(frameLayout, MainActivity.this);
-                        startCameraButton.setText("STOP CAMERA");
+                            isLinderaInitialized = true;
+                            startDetectionButton.setVisibility(View.GONE);
+                            findViewById(R.id.button_set_model).setVisibility(View.VISIBLE);
+                            findViewById(R.id.button_toggle_landmarks).setVisibility(View.VISIBLE);
+                            updateLandmarkButtonText();
+                            updateModelComplexityButtonText();
+                        });
 
-                    } else {
-
-                        if (isDetectionStarted) {
-                            startCameraButton.setText(R.string.start_camera);
-
-
-                            lindera.stopDetection();
-                        } else {
-                            lindera.startDetection();
-                            startCameraButton.setText("STOP CAMERA");
-
-                        }
 
                     }
                     isDetectionStarted = !isDetectionStarted;
 
 
                 });
-    }
 
-    /**
+        toggleLandmarks.setOnClickListener(
-     * Disables unecesary UI buttons
+                v ->{
-     */
+                    this.lindera.setLandmarksVisibility(!this.lindera.getLandmarkVisibility());
-    private void disableRedundantUI() {
+                    updateLandmarkButtonText();
-        findViewById(R.id.button_load_picture).setVisibility(View.GONE);
+                }
-        findViewById(R.id.button_load_video).setVisibility(View.GONE);
+        );
+
+        modelComplexity.setOnClickListener(v->{
+            int modelComplexityVal = lindera.getModelComplexity();
+
+            new MaterialDialog.Builder(this)
+                    .title("Choose Model Complexity")
+                    .items(Arrays.asList("Lite","Full","Heavy"))
+                    .itemsCallbackSingleChoice(modelComplexityVal, new MaterialDialog.ListCallbackSingleChoice() {
+                        @Override
+                        public boolean onSelection(MaterialDialog dialog, View view, int which, CharSequence text) {
+                            /**
+                             * If you use alwaysCallSingleChoiceCallback(), which is discussed below,
+                             * returning false here won't allow the newly selected radio button to actually be selected.
+                             **/
+                            if (which != modelComplexityVal){
+                                modelLoadAsyncDialogue(()-> {
+                                    lindera.setModelComplexity(which);
+                                    lindera.restartDetection();
+                                    updateModelComplexityButtonText();
+                                });
+                            }
+                            return true;
+                        }
+                    })
+                    .positiveText("choose")
+                    .show();
+//                listItemsSingleChoice(R.array.my_items, initialSelection = 1);
+
+
+
+        });
 
     }
+    void updateLandmarkButtonText(){
+        Button toggleLandmarks = findViewById(R.id.button_toggle_landmarks);
+
+        if (this.lindera.getLandmarkVisibility()) {
+            toggleLandmarks.setText("Show Landmarks (On)");
+        }else{
+            toggleLandmarks.setText("Show Landmarks (Off)");
+
+        }
+    }
+
+    void updateModelComplexityButtonText(){
+        String text = "Select Model ";
+        switch (this.lindera.getModelComplexity()){
+            case 0:
+                text += "(lite)";
+                break;
+            case 1:
+                text += "(full)";
+                break;
+            case 2:
+                text += "(heavy)";
+                break;
+
+        }
+        Button setModel = findViewById(R.id.button_set_model);
+        setModel.setText(text);
+
+    }
+
+    void modelLoadAsyncDialogue(Runnable loader){
+        ProgressBar pbar = new ProgressBar(this);
+        MaterialDialog dialog = new MaterialDialog.Builder(this)
+                .title("Loading Model")
+                .customView(pbar, false)
+                .build();
+        dialog.show();
+        ExecutorService executor = Executors.newSingleThreadExecutor();
+        Handler handler = new Handler(Looper.getMainLooper());
+
+        executor.execute(new Runnable() {
+            @Override
+            public void run() {
+                //Background work here
+                handler.post(loader);
+                dialog.dismiss();
+            }
+        });
+    }
+
+
+
+
+
+
 
 
 }

mediapipe/examples/android/solutions/posetracking-lindera/src/main/res

@@ -1 +0,0 @@
-../../../res

mediapipe/examples/android/solutions/posetracking-lindera/src/main/res/drawable-v24/ic_launcher_foreground.xml

@@ -0,0 +1,34 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportHeight="108"
+    android:viewportWidth="108">
+    <path
+        android:fillType="evenOdd"
+        android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="78.5885"
+                android:endY="90.9159"
+                android:startX="48.7653"
+                android:startY="61.0927"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1" />
+</vector>

mediapipe/examples/android/solutions/posetracking-lindera/src/main/res/drawable/ic_launcher_background.xml

@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector
+    android:height="108dp"
+    android:width="108dp"
+    android:viewportHeight="108"
+    android:viewportWidth="108"
+    xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#26A69A"
+          android:pathData="M0,0h108v108h-108z"/>
+    <path android:fillColor="#00000000" android:pathData="M9,0L9,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M19,0L19,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M29,0L29,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M39,0L39,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M49,0L49,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M59,0L59,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M69,0L69,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M79,0L79,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M89,0L89,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M99,0L99,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,9L108,9"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,19L108,19"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,29L108,29"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,39L108,39"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,49L108,49"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,59L108,59"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,69L108,69"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,79L108,79"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,89L108,89"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,99L108,99"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M19,29L89,29"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M19,39L89,39"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M19,49L89,49"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M19,59L89,59"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M19,69L89,69"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M19,79L89,79"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M29,19L29,89"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M39,19L39,89"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M49,19L49,89"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M59,19L59,89"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M69,19L69,89"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M79,19L79,89"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+</vector>

mediapipe/examples/android/solutions/posetracking-lindera/src/main/res/layout/activity_main.xml

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+    <LinearLayout
+        android:id="@+id/buttons"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        style="?android:attr/buttonBarStyle" android:gravity="center"
+        android:orientation="horizontal">
+
+        <Button
+            android:id="@+id/button_start_detection"
+            style="?android:attr/buttonBarButtonStyle"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="Start Detection" />
+
+        <Button
+            android:id="@+id/button_toggle_landmarks"
+            style="?android:attr/buttonBarButtonStyle"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="Show Landmarks" />
+
+        <Button
+            android:id="@+id/button_set_model"
+            style="?android:attr/buttonBarButtonStyle"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="Set Model" />
+    </LinearLayout>
+    <FrameLayout
+        android:id="@+id/preview_display_layout"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+        <TextView
+            android:id="@+id/no_view"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:gravity="center"
+            android:text="@string/instruction" />
+    </FrameLayout>
+</LinearLayout>

mediapipe/examples/android/solutions/posetracking-lindera/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background"/>
+    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+</adaptive-icon>

mediapipe/examples/android/solutions/posetracking-lindera/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background"/>
+    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+</adaptive-icon>

mediapipe/examples/android/solutions/posetracking-lindera/src/main/res/values/colors.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#008577</color>
+    <color name="colorPrimaryDark">#00574B</color>
+    <color name="colorAccent">#D81B60</color>
+</resources>

mediapipe/examples/android/solutions/posetracking-lindera/src/main/res/values/strings.xml

@@ -0,0 +1,6 @@
+<resources>
+    <string name="load_picture" translatable="false">Load Picture</string>
+    <string name="load_video" translatable="false">Load Video</string>
+    <string name="start_camera" translatable="false">Start Camera</string>
+    <string name="instruction" translatable="false">Please press any button above to start</string>
+</resources>

mediapipe/examples/android/solutions/posetracking-lindera/src/main/res/values/styles.xml

@@ -0,0 +1,11 @@
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+
+</resources>

mediapipe/java/com/google/mediapipe/solutions/lindera/Lindera.java

@@ -37,6 +37,33 @@ public class Lindera {
         this.plugin = plugin;
     }
 
+    public void setLandmarksVisibility(boolean visible){
+        this.poseTracking.options = PoseTrackingOptions.builder().withPoseTrackingOptions(this.poseTracking
+                .options).setLandmarkVisibility(visible).build();
+    }
+    public boolean getLandmarkVisibility(){
+        return this.poseTracking.options.landmarkVisibility();
+    }
+
+    public int getModelComplexity(){
+        return this.poseTracking.options.modelComplexity();
+
+    }
+    public void setModelComplexity(int complexity){
+        this.poseTracking.options = PoseTrackingOptions.builder().withPoseTrackingOptions(this.poseTracking
+                .options).setModelComplexity(complexity).build();
+    }
+
+    public void restartDetection(){
+        if (poseTracking!=null) {
+            stopDetection();
+            startDetection(poseTracking.options);
+        }else{
+            startDetection();
+        }
+
+    }
+
     public void initialize (ViewGroup computerVisionContainerView , AppCompatActivity appCompatActivity){
 
         this.computerVisionContainerView = computerVisionContainerView;
@@ -101,6 +128,7 @@ public class Lindera {
                 );    
     }
 
+
     public void startDetection(PoseTrackingOptions options){
         // ensure that class is initalized
         assert (appCompatActivity != null);

mediapipe/java/com/google/mediapipe/solutions/posetracking/PoseTracking.java

@@ -53,14 +53,15 @@ public class PoseTracking extends ImageSolutionBase {
   private static final int OUTPUT_IMAGE_INDEX = 2;
   private static final int LANDMARKS_INDEX = 3;
   private final OutputHandler<PoseTrackingResult> outputHandler;
-
+  public PoseTrackingOptions options;
   /**
    * Initializes MediaPipe Face Detection solution.
    *
    * @param context an Android {@link Context}.
-   * @param options the configuration options defined in {@link PoseTrackingOptions}.
+   * @param poseTrackingOptions the configuration options defined in {@link PoseTrackingOptions}.
    */
-  public PoseTracking(Context context, PoseTrackingOptions options) {
+  public PoseTracking(Context context, PoseTrackingOptions poseTrackingOptions) {
+    options = poseTrackingOptions;
     outputHandler = new OutputHandler<>();
     outputHandler.setOutputConverter(
         packets -> {

mediapipe/java/com/google/mediapipe/solutions/posetracking/PoseTrackingOptions.java

@@ -56,6 +56,13 @@ public abstract class PoseTrackingOptions {
               .setMinDetectionConfidence(0.5f)
               .setSmoothLandmarks(true);
     }
+    public Builder withPoseTrackingOptions(PoseTrackingOptions options){
+      return setStaticImageMode(options.staticImageMode())
+              .setModelComplexity(options.modelComplexity())
+              .setMinDetectionConfidence(options.minDetectionConfidence())
+              .setSmoothLandmarks(options.smoothLandmarks())
+              .setLandmarkVisibility(options.landmarkVisibility());
+    }
 
     public abstract Builder setStaticImageMode(boolean value);