!8274 himindspore add net that can download new version apk and install

From: @sishuikang
Reviewed-by: @zhang_xue_tong
Signed-off-by:

model_zoo/official/lite/Himindspore/app/build.gradle

@@ -51,6 +51,11 @@ android {
     packagingOptions{
         pickFirst 'lib/arm64-v8a/libmlkit-label-MS.so'
     }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
 }
 
 // Before gradle build.
@@ -69,4 +74,15 @@ dependencies {
     implementation 'com.sun.mail:android-mail:1.6.5'
     implementation 'com.sun.mail:android-activation:1.6.5'
 
+
+    implementation 'com.trello.rxlifecycle2:rxlifecycle:2.2.2'
+    implementation 'com.trello.rxlifecycle2:rxlifecycle-components:2.2.2'
+    implementation 'io.reactivex.rxjava2:rxjava:2.1.1'
+    implementation 'io.reactivex.rxjava2:rxandroid:2.0.1'
+    implementation 'com.squareup.retrofit2:retrofit:2.9.0'
+    implementation 'com.squareup.retrofit2:converter-gson:2.9.0'
+    implementation 'com.squareup.retrofit2:adapter-rxjava2:2.9.0'
+
+    implementation 'com.squareup.okhttp3:logging-interceptor:4.9.0'
+    implementation 'org.greenrobot:eventbus:3.0.0'
 }

model_zoo/official/lite/Himindspore/app/src/main/AndroidManifest.xml

@@ -9,6 +9,8 @@
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEM" />
     <uses-permission android:name="android.permission.READ_PHONE_STATE" />
+    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
+
     <uses-permission android:name="android.permission.INTERNET" />
 
     <application
@@ -19,6 +21,10 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
+        <meta-data
+            android:name="com.google.android.actions"
+            android:resource="@xml/file_paths" />
+
         <activity
             android:name=".SplashActivity"
             android:screenOrientation="portrait"
@@ -32,7 +38,7 @@
         <activity
             android:name=".imageclassification.ui.ImageMainActivity"
             android:screenOrientation="portrait"
-            android:theme="@style/Theme.AppCompat.NoActionBar"/>
+            android:theme="@style/Theme.AppCompat.NoActionBar" />
         <activity
             android:name=".contract.ContractActivity"
             android:screenOrientation="portrait"
@@ -53,6 +59,16 @@
             android:name=".imageclassification.ui.ImageCameraActivity"
             android:screenOrientation="portrait"
             android:theme="@style/Theme.AppCompat.NoActionBar" />
+
+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="com.mindspore.himindspore.fileprovider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/file_paths" />
+        </provider>
     </application>
 
 </manifest>

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/SplashActivity.java

@@ -1,34 +1,51 @@
 package com.mindspore.himindspore;
 
 import android.Manifest;
+import android.app.ProgressDialog;
+import android.content.DialogInterface;
 import android.content.Intent;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
 import android.net.Uri;
-import android.os.Bundle;
+import android.os.Build;
+import android.os.Environment;
+import android.util.Log;
 import android.view.View;
 import android.widget.Button;
+import android.widget.Toast;
 
 import androidx.annotation.NonNull;
-import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.app.AlertDialog;
 import androidx.core.app.ActivityCompat;
+import androidx.core.content.FileProvider;
 
-import com.mindspore.himindspore.imageclassification.ui.ImageCameraActivity;
+import com.mindspore.himindspore.base.BaseActivity;
 import com.mindspore.himindspore.imageclassification.ui.ImageMainActivity;
+import com.mindspore.himindspore.mvp.MainContract;
+import com.mindspore.himindspore.mvp.MainPresenter;
+import com.mindspore.himindspore.net.FileDownLoadObserver;
+import com.mindspore.himindspore.net.UpdateInfoBean;
 import com.mindspore.himindspore.objectdetection.ui.ObjectDetectionMainActivity;
 
-public class SplashActivity extends AppCompatActivity implements View.OnClickListener {
+import java.io.File;
 
+public class SplashActivity extends BaseActivity<MainPresenter> implements MainContract.View, View.OnClickListener {
+
+    private static final String TAG = "SplashActivity";
     private static final int REQUEST_PERMISSION = 1;
 
-    private Button btnImage, btnObject, btnContract,btnAdvice;
+    private Button btnImage, btnObject, btnContract, btnAdvice;
     private boolean isHasPermssion;
 
-    private static final String CODE_URL ="https://gitee.com/mindspore/mindspore/tree/master/model_zoo/official/lite";
-    private static final String HELP_URL ="https://github.com/mindspore-ai/mindspore/issues";
+    private ProgressDialog progressDialog;
+
+    private static final String CODE_URL = "https://gitee.com/mindspore/mindspore/tree/master/model_zoo/official/lite";
+    private static final String HELP_URL = "https://github.com/mindspore-ai/mindspore/issues";
+
 
     @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_splash);
+    protected void init() {
+        presenter = new MainPresenter(this);
 
         btnImage = findViewById(R.id.btn_image);
         btnObject = findViewById(R.id.btn_object);
@@ -41,6 +58,12 @@ public class SplashActivity extends AppCompatActivity implements View.OnClickLis
         btnAdvice.setOnClickListener(this);
 
         requestPermissions();
+        getUpdateInfo();
+    }
+
+    @Override
+    public int getLayout() {
+        return R.layout.activity_splash;
     }
 
     private void requestPermissions() {
@@ -59,6 +82,11 @@ public class SplashActivity extends AppCompatActivity implements View.OnClickLis
         }
     }
 
+    private void getUpdateInfo() {
+        presenter.getUpdateInfo();
+    }
+
+
     @Override
     public void onClick(View view) {
         if (R.id.btn_image == view.getId()) {
@@ -75,7 +103,7 @@ public class SplashActivity extends AppCompatActivity implements View.OnClickLis
             }
         } else if (R.id.btn_contact == view.getId()) {
             openBrowser(CODE_URL);
-        }else if (R.id.btn_advice == view.getId()) {
+        } else if (R.id.btn_advice == view.getId()) {
             openBrowser(HELP_URL);
         }
     }
@@ -87,4 +115,134 @@ public class SplashActivity extends AppCompatActivity implements View.OnClickLis
         intent.setData(uri);
         startActivity(intent);
     }
+
+    @Override
+    public void showUpdateResult(UpdateInfoBean bean) {
+        showUpdate(bean);
+    }
+
+    @Override
+    public void showFail(String s) {
+
+    }
+
+    public void downSuccess() {
+        if (progressDialog != null && progressDialog.isShowing()) {
+            progressDialog.dismiss();
+        }
+        AlertDialog.Builder builder = new AlertDialog.Builder(this);
+        builder.setIcon(android.R.drawable.ic_dialog_info);
+        builder.setTitle("下载完成");
+        builder.setMessage("是否安装");
+        builder.setCancelable(false);
+        builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
+            @Override
+            public void onClick(DialogInterface dialog, int which) {
+                Intent intent = new Intent(Intent.ACTION_VIEW);
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                    intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+                    Uri contentUri = FileProvider.getUriForFile(SplashActivity.this, "com.mindspore.himindspore.fileprovider",
+                            new File(getApkPath(), "HiMindSpore.apk"));
+                    intent.setDataAndType(contentUri, "application/vnd.android.package-archive");
+                } else {
+                    intent.setDataAndType(Uri.fromFile(new File(getApkPath(), "HiMindSpore.apk")), "application/vnd.android.package-archive");
+                    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                }
+                startActivity(intent);
+            }
+        });
+        builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
+            @Override
+            public void onClick(DialogInterface dialog, int which) {
+            }
+        });
+        builder.create().show();
+    }
+
+
+    private int now_version;
+
+    public void showUpdate(final UpdateInfoBean updateInfo) {
+        try {
+            PackageManager packageManager = this.getPackageManager();
+            PackageInfo packageInfo = packageManager.getPackageInfo(this.getPackageName(), 0);
+            now_version = packageInfo.versionCode;
+        } catch (PackageManager.NameNotFoundException e) {
+            e.printStackTrace();
+        }
+
+        if (now_version == updateInfo.getVersionCode()) {
+            Toast.makeText(this, "已经是最新版本", Toast.LENGTH_SHORT).show();
+            Log.d(TAG + "版本号是", "onResponse: " + now_version);
+        } else {
+            AlertDialog.Builder builder = new AlertDialog.Builder(this);
+            builder.setIcon(android.R.drawable.ic_dialog_info);
+            builder.setTitle("请升级新版本" + updateInfo.getVersionName());
+            builder.setMessage(updateInfo.getMessage());
+            builder.setCancelable(false);
+            builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
+                @Override
+                public void onClick(DialogInterface dialog, int which) {
+                    Log.e(TAG, String.valueOf(Environment.MEDIA_MOUNTED));
+                    downFile();
+                }
+            });
+            builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
+                @Override
+                public void onClick(DialogInterface dialog, int which) {
+                }
+            });
+            builder.create().show();
+        }
+    }
+
+    public void downFile() {
+        progressDialog = new ProgressDialog(this);
+        progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
+        progressDialog.setTitle("正在下载");
+        progressDialog.setMessage("请稍候...");
+        progressDialog.setProgressNumberFormat("%1d Mb/%2d Mb");
+        progressDialog.setProgress(0);
+        progressDialog.show();
+        presenter.downloadApk(getApkPath(), "HiMindSpore.apk", new FileDownLoadObserver<File>() {
+            @Override
+            public void onDownLoadSuccess(File file) {
+                downSuccess();
+            }
+
+            @Override
+            public void onDownLoadFail(Throwable throwable) {
+                Toast.makeText(SplashActivity.this, "下载失败", Toast.LENGTH_LONG).show();
+            }
+
+            @Override
+            public void onProgress(final int progress, final long total) {
+                runOnUiThread(new Runnable() {
+                    @Override
+                    public void run() {
+                        progressDialog.setMax((int) total / 1024 / 1024);
+                        progressDialog.setProgress(progress);
+                    }
+                });
+
+            }
+        });
+        Log.d(TAG, "downFile: ");
+    }
+
+    public String getApkPath() {
+        String directoryPath = "";
+        if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) {
+            directoryPath = getExternalFilesDir("apk").getAbsolutePath();
+        } else {
+            directoryPath = getFilesDir() + File.separator + "apk";
+        }
+        File file = new File(directoryPath);
+        Log.e("测试路径", directoryPath);
+        if (!file.exists()) {
+            file.mkdirs();
+        }
+        return directoryPath;
+    }
+
 }

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/base/BaseActivity.java

@@ -0,0 +1,20 @@
+package com.mindspore.himindspore.base;
+
+import android.app.Activity;
+import android.os.Bundle;
+
+public abstract class BaseActivity<T extends BasePresenter> extends Activity {
+
+    protected T presenter;
+
+    @Override
+    public void onCreate(Bundle savedInstance) {
+        super.onCreate(savedInstance);
+        setContentView(getLayout());
+        init();
+    }
+
+    protected abstract void init();
+
+    public abstract int getLayout();
+}

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/base/BasePresenter.java

@@ -0,0 +1,5 @@
+package com.mindspore.himindspore.base;
+
+public abstract class BasePresenter<T extends BaseActivity> {
+    protected T view;
+}

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/base/TrackListener.java

@@ -0,0 +1,4 @@
+package com.mindspore.himindspore.base;
+
+public interface TrackListener {
+}

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/camera/CameraPreview.java

@@ -37,8 +37,8 @@ import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.core.app.ActivityCompat;
 
+import com.mindspore.himindspore.base.TrackListener;
 import com.mindspore.himindspore.imageclassification.help.GarbageTrackingMobile;
-import com.mindspore.himindspore.track.TrackListener;
 import com.mindspore.himindspore.imageclassification.help.ImageTrackingMobile;
 import com.mindspore.himindspore.objectdetection.help.ObjectTrackingMobile;
 
@@ -283,7 +283,7 @@ public class CameraPreview extends TextureView {
             if (null != track) {
                 garbageTrackingMobile = (GarbageTrackingMobile) track;
             }
-        }else if (OPEN_TYPE_OBJECT == openType) {
+        } else if (OPEN_TYPE_OBJECT == openType) {
             if (null != track) {
                 objectTrackingMobile = (ObjectTrackingMobile) track;
             }
@@ -308,7 +308,7 @@ public class CameraPreview extends TextureView {
         mBackgroundThread.start();
         mBackgroundHandler = new Handler(mBackgroundThread.getLooper());
 
-        if (OPEN_TYPE_IMAGE == openType || OPEN_TYPE_OBJECT == openType || OPEN_TYPE_IMAGE_CUSTOM == openType ) {
+        if (OPEN_TYPE_IMAGE == openType || OPEN_TYPE_OBJECT == openType || OPEN_TYPE_IMAGE_CUSTOM == openType) {
             mImageBackgroundThread = new HandlerThread("MINDSPORE");
             mImageBackgroundThread.start();
             mImageBackgroundHandler = new Handler(mImageBackgroundThread.getLooper());
@@ -330,12 +330,12 @@ public class CameraPreview extends TextureView {
                 if (bitmap != null) {
                     long startTime = System.currentTimeMillis();
                     // The current bitmap performs the sending request identification operation
-                    String ret ="";
-                    if (OPEN_TYPE_IMAGE == openType){
+                    String ret = "";
+                    if (OPEN_TYPE_IMAGE == openType) {
                         ret = null == imageTrackingMobile ? "" : imageTrackingMobile.MindSpore_runnet(bitmap);
-                    }else if(OPEN_TYPE_IMAGE_CUSTOM == openType){
+                    } else if (OPEN_TYPE_IMAGE_CUSTOM == openType) {
                         ret = null == garbageTrackingMobile ? "" : garbageTrackingMobile.MindSpore_runnet(bitmap);
-                    }else if(OPEN_TYPE_OBJECT == openType){
+                    } else if (OPEN_TYPE_OBJECT == openType) {
                         ret = null == objectTrackingMobile ? "" : objectTrackingMobile.MindSpore_runnet(bitmap);
                     }
                     long endTime = System.currentTimeMillis();
@@ -348,7 +348,7 @@ public class CameraPreview extends TextureView {
                     }
                 }
                 if (mImageBackgroundHandler != null && !isPreBackgroundThreadPause) {
-                    mImageBackgroundHandler.postDelayed(classifyRunnable,1000);
+                    mImageBackgroundHandler.postDelayed(classifyRunnable, 1000);
                 }
             }
         }

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/imageclassification/bean/RecognitionImageBean.java

@@ -1,12 +1,12 @@
 /**
  * Copyright 2020 Huawei Technologies Co., Ltd
- *
+ * <p>
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
- *
+ * <p>
  * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/imageclassification/help/GarbageTrackingMobile.java

@@ -1,12 +1,12 @@
 /**
  * Copyright 2020 Huawei Technologies Co., Ltd
- *
+ * <p>
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
- *
+ * <p>
  * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -17,11 +17,10 @@
 package com.mindspore.himindspore.imageclassification.help;
 
 import android.content.Context;
-import android.content.res.AssetManager;
 import android.graphics.Bitmap;
 import android.util.Log;
 
-import com.mindspore.himindspore.track.TrackListener;
+import com.mindspore.himindspore.base.TrackListener;
 
 import java.io.InputStream;
 import java.nio.ByteBuffer;
@@ -61,7 +60,7 @@ public class GarbageTrackingMobile implements TrackListener {
 
     /**
      * Running model.
-     * 
+     *
      * @param netEnv Inference environment address.
      * @param img A picture to be inferred.
      * @return Inference result
@@ -70,7 +69,7 @@ public class GarbageTrackingMobile implements TrackListener {
 
     /**
      * Unbind model data.
-     * 
+     *
      * @param netEnv Inference environment address.
      * @return Unbound state.
      */
@@ -78,14 +77,14 @@ public class GarbageTrackingMobile implements TrackListener {
 
     /**
      * The C++ side is encapsulated into a method of the MSNetWorks class
-     * 
+     *
      * @param modelPath Model file location
      * @return Load model file status
      */
     public boolean loadModelFromBuf(String modelPath) {
         ByteBuffer buffer = loadModelFile(modelPath);
         netEnv = loadModel(buffer, 2);  //numThread's default setting is 2.
-        if (netEnv == 0){ // Loading model failed.
+        if (netEnv == 0) { // Loading model failed.
             return false;
         }
 
@@ -112,7 +111,7 @@ public class GarbageTrackingMobile implements TrackListener {
     /**
      * Load model file stream.
      * @param modelPath Model file path.
-     * @return  Model ByteBuffer.
+     * @return Model ByteBuffer.
      */
     public ByteBuffer loadModelFile(String modelPath) {
         InputStream is = null;

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/imageclassification/help/ImageTrackingMobile.java

@@ -1,12 +1,12 @@
 /**
  * Copyright 2020 Huawei Technologies Co., Ltd
- *
+ * <p>
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
- *
+ * <p>
  * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -20,7 +20,7 @@ import android.content.Context;
 import android.graphics.Bitmap;
 import android.util.Log;
 
-import com.mindspore.himindspore.track.TrackListener;
+import com.mindspore.himindspore.base.TrackListener;
 
 import java.io.InputStream;
 import java.nio.ByteBuffer;
@@ -60,7 +60,7 @@ public class ImageTrackingMobile implements TrackListener {
 
     /**
      * Running model.
-     * 
+     *
      * @param netEnv Inference environment address.
      * @param img A picture to be inferred.
      * @return Inference result
@@ -69,7 +69,7 @@ public class ImageTrackingMobile implements TrackListener {
 
     /**
      * Unbind model data.
-     * 
+     *
      * @param netEnv Inference environment address.
      * @return Unbound state.
      */
@@ -77,14 +77,14 @@ public class ImageTrackingMobile implements TrackListener {
 
     /**
      * The C++ side is encapsulated into a method of the MSNetWorks class
-     * 
+     *
      * @param modelPath Model file location
      * @return Load model file status
      */
     public boolean loadModelFromBuf(String modelPath) {
         ByteBuffer buffer = loadModelFile(modelPath);
         netEnv = loadModel(buffer, 2);  //numThread's default setting is 2.
-        if (netEnv == 0){ // Loading model failed.
+        if (netEnv == 0) { // Loading model failed.
             return false;
         }
 
@@ -111,7 +111,7 @@ public class ImageTrackingMobile implements TrackListener {
     /**
      * Load model file stream.
      * @param modelPath Model file path.
-     * @return  Model ByteBuffer.
+     * @return Model ByteBuffer.
      */
     public ByteBuffer loadModelFile(String modelPath) {
         InputStream is = null;

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/imageclassification/ui/HorTextView.java

@@ -1,12 +1,12 @@
 /**
  * Copyright 2020 Huawei Technologies Co., Ltd
- *
+ * <p>
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
- *
+ * <p>
  * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/imageclassification/ui/ImageCameraActivity.java

@@ -23,9 +23,7 @@ import android.util.Log;
 import android.view.Gravity;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.CompoundButton;
 import android.widget.LinearLayout;
-import android.widget.Switch;
 import android.widget.TextView;
 
 import androidx.annotation.UiThread;
@@ -65,10 +63,10 @@ public class ImageCameraActivity extends AppCompatActivity implements CameraPrev
     private GarbageTrackingMobile garbageTrackingMobile;
 
     @Override
-    protected void onCreate( Bundle savedInstanceState) {
+    protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_image_camera);
-        enterType = getIntent().getIntExtra(OPEN_TYPE,TYPE_DEMO);
+        enterType = getIntent().getIntExtra(OPEN_TYPE, TYPE_DEMO);
 
         cameraPreview = findViewById(R.id.image_camera_preview);
         bottomLayout = findViewById(R.id.layout_bottom_content);
@@ -77,12 +75,12 @@ public class ImageCameraActivity extends AppCompatActivity implements CameraPrev
     }
 
     private void init() {
-        if(enterType == TYPE_DEMO) {
+        if (enterType == TYPE_DEMO) {
             mTrackingMobile = new ImageTrackingMobile(this);
             String modelPath = "model/mobilenetv2.ms";
             boolean ret = mTrackingMobile.loadModelFromBuf(modelPath);
             Log.d(TAG, "Loading model return value: " + ret);
-        }else {
+        } else {
             garbageTrackingMobile = new GarbageTrackingMobile(this);
             String garbageModelPath = "model/garbage_mobilenetv2.ms";
             boolean garbageRet = garbageTrackingMobile.loadModelFromBuf(garbageModelPath);
@@ -95,9 +93,9 @@ public class ImageCameraActivity extends AppCompatActivity implements CameraPrev
     @Override
     protected void onResume() {
         super.onResume();
-        if(enterType == TYPE_DEMO) {
+        if (enterType == TYPE_DEMO) {
             cameraPreview.onResume(this, CameraPreview.OPEN_TYPE_IMAGE, mTrackingMobile);
-        }else{
+        } else {
             cameraPreview.onResume(this, CameraPreview.OPEN_TYPE_IMAGE_CUSTOM, garbageTrackingMobile);
         }
     }
@@ -105,7 +103,7 @@ public class ImageCameraActivity extends AppCompatActivity implements CameraPrev
     @Override
     protected void onPause() {
         super.onPause();
-            cameraPreview.onPause();
+        cameraPreview.onPause();
     }
 
     @Override
@@ -124,7 +122,7 @@ public class ImageCameraActivity extends AppCompatActivity implements CameraPrev
 
     @Override
     public void onRecognitionDataCallBack(final String result, final String time) {
-         if(enterType == TYPE_DEMO) {
+        if (enterType == TYPE_DEMO) {
             if (recognitionObjectBeanList != null) {
                 recognitionObjectBeanList.clear();
             } else {
@@ -175,10 +173,10 @@ public class ImageCameraActivity extends AppCompatActivity implements CameraPrev
                 horTextView.setLeftTitle(bean.getName());
                 horTextView.setRightContent(String.format("%.2f", (100 * bean.getScore())) + "%");
                 horTextView.setBottomLineVisible(View.VISIBLE);
-                if (classNum == 1){
+                if (classNum == 1) {
                     horTextView.getTvLeftTitle().setTextColor(getResources().getColor(R.color.text_blue));
                     horTextView.getTvRightContent().setTextColor(getResources().getColor(R.color.text_blue));
-                }else{
+                } else {
                     horTextView.getTvLeftTitle().setTextColor(getResources().getColor(R.color.white));
                     horTextView.getTvRightContent().setTextColor(getResources().getColor(R.color.white));
                 }
@@ -212,7 +210,7 @@ public class ImageCameraActivity extends AppCompatActivity implements CameraPrev
         }
     }
 
-    private void showLoadView(){
+    private void showLoadView() {
         TextView textView = new TextView(this);
         textView.setLayoutParams(new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
         textView.setText("Keep moving.");

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/imageclassification/ui/ImageMainActivity.java

@@ -1,11 +1,11 @@
 package com.mindspore.himindspore.imageclassification.ui;
 
-import androidx.appcompat.app.AppCompatActivity;
-
 import android.content.Intent;
 import android.os.Bundle;
 import android.view.View;
 
+import androidx.appcompat.app.AppCompatActivity;
+
 import com.mindspore.himindspore.R;
 
 public class ImageMainActivity extends AppCompatActivity {
@@ -19,8 +19,8 @@ public class ImageMainActivity extends AppCompatActivity {
         findViewById(R.id.btn_demo).setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
-                Intent intent = new Intent(ImageMainActivity.this,ImageCameraActivity.class);
-                intent.putExtra(ImageCameraActivity.OPEN_TYPE,ImageCameraActivity.TYPE_DEMO);
+                Intent intent = new Intent(ImageMainActivity.this, ImageCameraActivity.class);
+                intent.putExtra(ImageCameraActivity.OPEN_TYPE, ImageCameraActivity.TYPE_DEMO);
                 startActivity(intent);
             }
         });
@@ -28,8 +28,8 @@ public class ImageMainActivity extends AppCompatActivity {
         findViewById(R.id.btn_custom).setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
-                Intent intent = new Intent(ImageMainActivity.this,ImageCameraActivity.class);
-                intent.putExtra(ImageCameraActivity.OPEN_TYPE,ImageCameraActivity.TYPE_CUSTOM);
+                Intent intent = new Intent(ImageMainActivity.this, ImageCameraActivity.class);
+                intent.putExtra(ImageCameraActivity.OPEN_TYPE, ImageCameraActivity.TYPE_CUSTOM);
                 startActivity(intent);
             }
         });

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/mvp/MainContract.java

@@ -0,0 +1,22 @@
+package com.mindspore.himindspore.mvp;
+
+import com.mindspore.himindspore.net.FileDownLoadObserver;
+import com.mindspore.himindspore.net.UpdateInfoBean;
+
+import java.io.File;
+
+public interface MainContract {
+
+    interface View {
+        void showUpdateResult(UpdateInfoBean object);
+
+        void showFail(String s);
+
+    }
+
+    interface Presenter {
+        void getUpdateInfo();
+
+        void downloadApk(String destDir, String fileName, FileDownLoadObserver<File> fileDownLoadObserver);
+    }
+}

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/mvp/MainPresenter.java

@@ -0,0 +1,65 @@
+package com.mindspore.himindspore.mvp;
+
+import android.util.Log;
+
+import com.mindspore.himindspore.SplashActivity;
+import com.mindspore.himindspore.base.BasePresenter;
+import com.mindspore.himindspore.net.FileDownLoadObserver;
+import com.mindspore.himindspore.net.RetrofitHelper;
+import com.mindspore.himindspore.net.UpdateInfoBean;
+
+import java.io.File;
+
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.annotations.NonNull;
+import io.reactivex.functions.Function;
+import io.reactivex.schedulers.Schedulers;
+import okhttp3.ResponseBody;
+import retrofit2.Call;
+import retrofit2.Callback;
+import retrofit2.Response;
+
+public class MainPresenter extends BasePresenter<SplashActivity> implements MainContract.Presenter {
+
+    private static final String TAG = "MainPresenter";
+    private RetrofitHelper retrofitHelper;
+
+    public MainPresenter(SplashActivity mainActivity) {
+        this.view = mainActivity;
+        retrofitHelper = new RetrofitHelper();
+    }
+
+    @Override
+    public void getUpdateInfo() {
+        retrofitHelper.getUpdateInfo().enqueue(new Callback<UpdateInfoBean>() {
+            @Override
+            public void onResponse(Call<UpdateInfoBean> call, Response<UpdateInfoBean> response) {
+                Log.i(TAG, "onResponse" + response.toString());
+                view.showUpdateResult(response.body());
+            }
+
+            @Override
+            public void onFailure(Call<UpdateInfoBean> call, Throwable t) {
+                Log.e(TAG, "onFailure" + t.toString());
+                view.showFail(call.toString());
+            }
+        });
+    }
+
+    @Override
+    public void downloadApk(final String destDir, final String fileName, final FileDownLoadObserver<File> fileDownLoadObserver) {
+        retrofitHelper.downlaodApk()
+                .subscribeOn(Schedulers.io())
+                .observeOn(Schedulers.io())
+                .observeOn(Schedulers.computation())
+                .map(new Function<ResponseBody, File>() {
+                    @Override
+                    public File apply(@NonNull ResponseBody responseBody) throws Exception {
+                        return fileDownLoadObserver.saveFile(responseBody, destDir, fileName);
+                    }
+                })
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe(fileDownLoadObserver);
+    }
+
+}

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/net/FileDownLoadObserver.java

@@ -0,0 +1,73 @@
+package com.mindspore.himindspore.net;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+import io.reactivex.observers.DefaultObserver;
+import okhttp3.ResponseBody;
+
+public abstract class FileDownLoadObserver<T> extends DefaultObserver<T> {
+
+    @Override
+    public void onNext(T t) {
+        onDownLoadSuccess(t);
+    }
+
+    @Override
+    public void onError(Throwable e) {
+        onDownLoadFail(e);
+    }
+
+    @Override
+    public void onComplete() {
+    }
+
+    public abstract void onDownLoadSuccess(T t);
+
+    public abstract void onDownLoadFail(Throwable throwable);
+
+    public abstract void onProgress(int progress, long total);
+
+
+    public File saveFile(ResponseBody responseBody, String destFileDir, String destFileName) throws IOException {
+        InputStream is = null;
+        byte[] buf = new byte[2048];
+        int len = 0;
+        FileOutputStream fos = null;
+        try {
+            is = responseBody.byteStream();
+            final long total = responseBody.contentLength();
+            long sum = 0;
+
+            File dir = new File(destFileDir);
+            if (!dir.exists()) {
+                dir.mkdirs();
+            }
+            File file = new File(dir, destFileName);
+            fos = new FileOutputStream(file);
+            while ((len = is.read(buf)) != -1) {
+                sum += len;
+                fos.write(buf, 0, len);
+                final long finalSum = sum;
+                onProgress((int) (finalSum * 100 / total), total);
+            }
+            fos.flush();
+
+            return file;
+
+        } finally {
+            try {
+                if (is != null) is.close();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+            try {
+                if (fos != null) fos.close();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+}

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/net/RetrofitHelper.java

@@ -0,0 +1,45 @@
+package com.mindspore.himindspore.net;
+
+import java.util.concurrent.TimeUnit;
+
+import io.reactivex.Observable;
+import okhttp3.OkHttpClient;
+import okhttp3.ResponseBody;
+import retrofit2.Call;
+import retrofit2.Retrofit;
+import retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory;
+import retrofit2.converter.gson.GsonConverterFactory;
+
+public class RetrofitHelper {
+    public static final String MS_BASE_HOST = "https://download.mindspore.cn/model_zoo/official/lite/apk/";
+
+    private RetrofitService retrofitService;
+
+
+    public RetrofitHelper() {
+
+        OkHttpClient httpClient = new OkHttpClient.Builder()
+                .retryOnConnectionFailure(true)
+                .connectTimeout(30, TimeUnit.SECONDS)
+                .build();
+
+        Retrofit retrofit = new Retrofit.Builder()
+                .baseUrl(MS_BASE_HOST)
+                .client(httpClient)
+                .addConverterFactory(GsonConverterFactory.create())
+                .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
+                .build();
+
+        retrofitService = retrofit.create(RetrofitService.class);
+    }
+
+
+    public Call<UpdateInfoBean> getUpdateInfo() {
+        return retrofitService.getUpdateInfo();
+    }
+
+    public Observable<ResponseBody> downlaodApk() {
+        return retrofitService.downloadApk();
+    }
+
+}

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/net/RetrofitService.java

@@ -0,0 +1,17 @@
+package com.mindspore.himindspore.net;
+
+import io.reactivex.Observable;
+import okhttp3.ResponseBody;
+import retrofit2.Call;
+import retrofit2.http.GET;
+import retrofit2.http.Streaming;
+
+public interface RetrofitService {
+
+    @GET("version.json")
+    Call<UpdateInfoBean> getUpdateInfo();
+
+    @Streaming
+    @GET("himindsporedemo.apk")
+    Observable<ResponseBody> downloadApk();
+}

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/net/UpdateInfoBean.java

@@ -0,0 +1,68 @@
+package com.mindspore.himindspore.net;
+
+public class UpdateInfoBean {
+
+    private int versionCode;
+    private String versionName;
+    private int forceUpdate;
+    private String create_time;
+    private String url;
+    private String md5;
+    private String message;
+
+    public int getVersionCode() {
+        return versionCode;
+    }
+
+    public void setVersionCode(int versionCode) {
+        this.versionCode = versionCode;
+    }
+
+    public String getVersionName() {
+        return versionName;
+    }
+
+    public void setVersionName(String versionName) {
+        this.versionName = versionName;
+    }
+
+    public int getForceUpdate() {
+        return forceUpdate;
+    }
+
+    public void setForceUpdate(int forceUpdate) {
+        this.forceUpdate = forceUpdate;
+    }
+
+    public String getCreate_time() {
+        return create_time;
+    }
+
+    public void setCreate_time(String create_time) {
+        this.create_time = create_time;
+    }
+
+    public String getUrl() {
+        return url;
+    }
+
+    public void setUrl(String url) {
+        this.url = url;
+    }
+
+    public String getMd5() {
+        return md5;
+    }
+
+    public void setMd5(String md5) {
+        this.md5 = md5;
+    }
+
+    public String getMessage() {
+        return message;
+    }
+
+    public void setMessage(String message) {
+        this.message = message;
+    }
+}

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/objectdetection/bean/RecognitionObjectBean.java

@@ -15,7 +15,7 @@ public class RecognitionObjectBean {
     private float right;
     private float bottom;
 
-    private RecognitionObjectBean(Builder builder){
+    private RecognitionObjectBean(Builder builder) {
         this.rectID = builder.rectID;
         this.imgID = builder.imgID;
         this.objectName = builder.objectName;
@@ -37,7 +37,7 @@ public class RecognitionObjectBean {
         private float right;
         private float bottom;
 
-        public RecognitionObjectBean build(){
+        public RecognitionObjectBean build() {
             return new RecognitionObjectBean(this);
         }
 

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/objectdetection/help/ObjectTrackingMobile.java

@@ -5,7 +5,7 @@ import android.content.res.AssetManager;
 import android.graphics.Bitmap;
 import android.util.Log;
 
-import com.mindspore.himindspore.track.TrackListener;
+import com.mindspore.himindspore.base.TrackListener;
 
 import java.io.FileNotFoundException;
 import java.io.InputStream;
@@ -40,24 +40,24 @@ public class ObjectTrackingMobile implements TrackListener {
      * jni Load model
      *
      * @param assetManager assetManager
-     * @param buffer buffer
-     * @param numThread numThread
+     * @param buffer       buffer
+     * @param numThread    numThread
      * @return Load model data
      */
     public native long loadModel(AssetManager assetManager, ByteBuffer buffer, int numThread);
 
     /**
      * jni Run model
-     * 
+     *
      * @param netEnv Load model data
-     * @param img Current picture
+     * @param img    Current picture
      * @return Run model data
      */
     public native String runNet(long netEnv, Bitmap img);
 
     /**
      * Unbind model data
-     * 
+     *
      * @param netEnv model data
      * @return Unbound state
      */
@@ -65,7 +65,7 @@ public class ObjectTrackingMobile implements TrackListener {
 
     /**
      * C++ encapsulated as a method of the msnetworks class
-     * 
+     *
      * @param assetManager Model file location
      * @return Loading model file status
      */
@@ -79,7 +79,7 @@ public class ObjectTrackingMobile implements TrackListener {
 
     /**
      * Run Mindspore
-     * 
+     *
      * @param img Current image recognition
      * @return Recognized text information
      */
@@ -90,6 +90,7 @@ public class ObjectTrackingMobile implements TrackListener {
 
     /**
      * Unbound model
+     *
      * @return true
      */
     public boolean unloadModel() {
@@ -99,8 +100,9 @@ public class ObjectTrackingMobile implements TrackListener {
 
     /**
      * Load model file stream
+     *
      * @param modelPath Model file path
-     * @return  Load model file stream
+     * @return Load model file stream
      */
     public ByteBuffer loadModelFile(String modelPath) {
         InputStream is = null;

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/objectdetection/ui/ObjectCameraActivity.java

@@ -8,7 +8,6 @@ import androidx.appcompat.app.AppCompatActivity;
 
 import com.mindspore.himindspore.R;
 import com.mindspore.himindspore.camera.CameraPreview;
-import com.mindspore.himindspore.imageclassification.help.ImageTrackingMobile;
 import com.mindspore.himindspore.objectdetection.bean.RecognitionObjectBean;
 import com.mindspore.himindspore.objectdetection.help.ObjectTrackingMobile;
 
@@ -20,7 +19,7 @@ import static com.mindspore.himindspore.objectdetection.bean.RecognitionObjectBe
 
 /**
  * main page of entrance
- *
+ * <p>
  * Pass in pictures to JNI, test mindspore model, load reasoning, etc
  */
 
@@ -29,7 +28,7 @@ public class ObjectCameraActivity extends AppCompatActivity implements CameraPre
     private final String TAG = "ObjectCameraActivity";
 
     private CameraPreview cameraPreview;
-    
+
     private ObjectTrackingMobile mTrackingMobile;
 
     private ObjectRectView mObjectRectView;
@@ -64,7 +63,7 @@ public class ObjectCameraActivity extends AppCompatActivity implements CameraPre
     @Override
     protected void onResume() {
         super.onResume();
-        cameraPreview.onResume(this,CameraPreview.OPEN_TYPE_OBJECT,mTrackingMobile);
+        cameraPreview.onResume(this, CameraPreview.OPEN_TYPE_OBJECT, mTrackingMobile);
 
     }
 
@@ -80,7 +79,7 @@ public class ObjectCameraActivity extends AppCompatActivity implements CameraPre
             mObjectRectView.clearCanvas();
             return;
         }
-        Log.d(TAG,result);
+        Log.d(TAG, result);
         recognitionObjectBeanList = getRecognitionList(result);
         mObjectRectView.setInfo(recognitionObjectBeanList);
     }

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/objectdetection/ui/ObjectPhotoActivity.java

@@ -17,11 +17,10 @@ import android.widget.ImageView;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AppCompatActivity;
 
-
 import com.mindspore.himindspore.R;
+import com.mindspore.himindspore.objectdetection.bean.RecognitionObjectBean;
 import com.mindspore.himindspore.objectdetection.help.BitmapUtils;
 import com.mindspore.himindspore.objectdetection.help.ObjectTrackingMobile;
-import com.mindspore.himindspore.objectdetection.bean.RecognitionObjectBean;
 import com.mindspore.himindspore.utils.DisplayUtil;
 
 import java.io.FileNotFoundException;
@@ -33,7 +32,7 @@ import static com.mindspore.himindspore.objectdetection.bean.RecognitionObjectBe
 public class ObjectPhotoActivity extends AppCompatActivity {
 
     private static final String TAG = "ObjectPhotoActivity";
-    private static final int[] COLORS ={R.color.white,R.color.text_blue,R.color.text_yellow,R.color.text_orange,R.color.text_green};
+    private static final int[] COLORS = {R.color.white, R.color.text_blue, R.color.text_yellow, R.color.text_orange, R.color.text_green};
 
     private static final int RC_CHOOSE_PHOTO = 1;
 
@@ -61,7 +60,7 @@ public class ObjectPhotoActivity extends AppCompatActivity {
 
     }
 
-    private void openGallay(){
+    private void openGallay() {
         Intent intentToPickPic = new Intent(Intent.ACTION_PICK, null);
         intentToPickPic.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*");
         startActivityForResult(intentToPickPic, RC_CHOOSE_PHOTO);
@@ -76,14 +75,16 @@ public class ObjectPhotoActivity extends AppCompatActivity {
                 this.imageUri = data.getData();
                 showOriginImage();
             }
+        } else {
+            finish();
         }
     }
 
-    private void showOriginImage(){
+    private void showOriginImage() {
         Pair<Integer, Integer> targetedSize = this.getTargetSize();
         int targetWidth = targetedSize.first;
         int maxHeight = targetedSize.second;
-         originBitmap = BitmapUtils.loadFromPath(ObjectPhotoActivity.this, imageUri, targetWidth, maxHeight);
+        originBitmap = BitmapUtils.loadFromPath(ObjectPhotoActivity.this, imageUri, targetWidth, maxHeight);
         // Determine how much to scale down the image.
         Log.i(ObjectPhotoActivity.TAG, "resized image size width:" + originBitmap.getWidth() + ",height: " + originBitmap.getHeight());
 
@@ -113,8 +114,8 @@ public class ObjectPhotoActivity extends AppCompatActivity {
         String result = trackingMobile.MindSpore_runnet(bitmap);
         long endTime = System.currentTimeMillis();
 
-        Log.d(TAG, "RUNNET CONSUMING："+(endTime-startTime)+"ms");
-        Log.d(TAG, "result："+ result);
+        Log.d(TAG, "RUNNET CONSUMING：" + (endTime - startTime) + "ms");
+        Log.d(TAG, "result：" + result);
 
         recognitionObjectBeanList = getRecognitionList(result);
 
@@ -126,29 +127,31 @@ public class ObjectPhotoActivity extends AppCompatActivity {
     private void drawRect(Bitmap bitmap) {
         Canvas canvas = new Canvas(bitmap);
         Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
-        mPaint.setTextSize(DisplayUtil.sp2px(this,16));
+        mPaint.setTextSize(DisplayUtil.sp2px(this, 16));
         //Draw only outline (stroke)
         mPaint.setStyle(Paint.Style.STROKE);
-        mPaint.setStrokeWidth(DisplayUtil.dip2px(this,2));
+        mPaint.setStrokeWidth(DisplayUtil.dip2px(this, 2));
 
         for (int i = 0; i < recognitionObjectBeanList.size(); i++) {
             RecognitionObjectBean objectBean = recognitionObjectBeanList.get(i);
             StringBuilder sb = new StringBuilder();
             sb.append(objectBean.getRectID()).append("_").append(objectBean.getObjectName()).append("_").append(String.format("%.2f", (100 * objectBean.getScore())) + "%");
 
-            int paintColor =getResources().getColor(COLORS[i % COLORS.length]);
+            int paintColor = getResources().getColor(COLORS[i % COLORS.length]);
             mPaint.setColor(paintColor);
 
             RectF rectF = new RectF(objectBean.getLeft(), objectBean.getTop(), objectBean.getRight(), objectBean.getBottom());
             canvas.drawRect(rectF, mPaint);
-            canvas.drawText(sb.toString(),objectBean.getLeft(), objectBean.getTop()-10,mPaint);
+            canvas.drawText(sb.toString(), objectBean.getLeft(), objectBean.getTop() - 10, mPaint);
         }
     }
 
     @Override
     protected void onDestroy() {
         super.onDestroy();
-        trackingMobile.unloadModel();
+        if (trackingMobile != null) {
+            trackingMobile.unloadModel();
+        }
         BitmapUtils.recycleBitmap(originBitmap);
     }
 

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/objectdetection/ui/ObjectRectView.java

@@ -2,7 +2,6 @@ package com.mindspore.himindspore.objectdetection.ui;
 
 import android.content.Context;
 import android.graphics.Canvas;
-import android.graphics.Color;
 import android.graphics.Paint;
 import android.graphics.Paint.Style;
 import android.graphics.RectF;
@@ -10,7 +9,6 @@ import android.util.AttributeSet;
 import android.util.Log;
 import android.view.View;
 
-
 import com.mindspore.himindspore.R;
 import com.mindspore.himindspore.objectdetection.bean.RecognitionObjectBean;
 import com.mindspore.himindspore.utils.DisplayUtil;
@@ -20,7 +18,7 @@ import java.util.List;
 
 /**
  * Rectangle drawing class for object detection
- *
+ * <p>
  * 1. Canvas：Represents the canvas attached to the specified view and uses its method to draw various graphics
  * 2. Paint：Represents the brush on canvas and is used to set brush color, brush thickness, fill style, etc
  */
@@ -38,31 +36,31 @@ public class ObjectRectView extends View {
     private Context context;
 
     public ObjectRectView(Context context) {
-        this(context,null);
+        this(context, null);
     }
 
     public ObjectRectView(Context context, AttributeSet attrs) {
-        this(context, attrs,0);
+        this(context, attrs, 0);
     }
 
     public ObjectRectView(Context context, AttributeSet attrs, int defStyleAttr) {
         super(context, attrs, defStyleAttr);
-        this.context =context;
+        this.context = context;
         initialize();
     }
 
 
-    private static final int[] MyColor ={R.color.white,R.color.text_blue,R.color.text_yellow,R.color.text_orange,R.color.text_green};
+    private static final int[] MyColor = {R.color.white, R.color.text_blue, R.color.text_yellow, R.color.text_orange, R.color.text_green};
 
 
     private void initialize() {
         mObjRectF = new RectF();
 
         mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
-        mPaint.setTextSize(DisplayUtil.sp2px(context,16));
+        mPaint.setTextSize(DisplayUtil.sp2px(context, 16));
         //Draw only outline (stroke)
         mPaint.setStyle(Style.STROKE);
-        mPaint.setStrokeWidth(DisplayUtil.dip2px(context,2));
+        mPaint.setStrokeWidth(DisplayUtil.dip2px(context, 2));
     }
 
     /**
@@ -71,14 +69,14 @@ public class ObjectRectView extends View {
      * @param recognitions
      */
     public void setInfo(List<RecognitionObjectBean> recognitions) {
-        Log.i(TAG, "setInfo: "+recognitions.size());
+        Log.i(TAG, "setInfo: " + recognitions.size());
 
         mRecognitions.clear();
         mRecognitions.addAll(recognitions);
         invalidate();
     }
 
-    public void clearCanvas(){
+    public void clearCanvas() {
         mRecognitions.clear();
         invalidate();
     }
@@ -90,7 +88,7 @@ public class ObjectRectView extends View {
         if (mRecognitions == null || mRecognitions.size() == 0) {
             return;
         }
-        for (int i = 0;i<mRecognitions.size();i++){
+        for (int i = 0; i < mRecognitions.size(); i++) {
             RecognitionObjectBean bean = mRecognitions.get(i);
             mPaint.setColor(context.getResources().getColor(MyColor[i % MyColor.length]));
             drawRect(bean, canvas);
@@ -98,14 +96,13 @@ public class ObjectRectView extends View {
     }
 
 
-
     public void drawRect(RecognitionObjectBean bean, Canvas canvas) {
         StringBuilder sb = new StringBuilder();
         sb.append(bean.getRectID()).append("_").append(bean.getObjectName()).append("_").append(String.format("%.2f", (100 * bean.getScore())) + "%");
 
         mObjRectF = new RectF(bean.getLeft(), bean.getTop(), bean.getRight(), bean.getBottom());
         canvas.drawRect(mObjRectF, mPaint);
-        canvas.drawText(sb.toString(), mObjRectF.left, mObjRectF.top - DisplayUtil.dip2px(context,10) , mPaint);
+        canvas.drawText(sb.toString(), mObjRectF.left, mObjRectF.top - DisplayUtil.dip2px(context, 10), mPaint);
     }
 
 }

model_zoo/official/lite/Himindspore/app/src/main/java/com/mindspore/himindspore/utils/DisplayUtil.java

@@ -5,9 +5,9 @@ import android.content.Context;
 public class DisplayUtil {
 
     private DisplayUtil() {
-    /* cannot be instantiated */
-    throw new UnsupportedOperationException("cannot be instantiated");
-}
+        /* cannot be instantiated */
+        throw new UnsupportedOperationException("cannot be instantiated");
+    }
 
 
     public static int px2dip(Context context, float pxValue) {

model_zoo/official/lite/Himindspore/app/src/main/res/xml/file_paths.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<paths>
+    <external-path path="Android/data/com.mindspore.himindspore/" name="files_root" />
+
+    <files-path
+        name="Android/data/com.mindspore.himindspore/"
+        path="files_root">
+    </files-path>
+</paths>