更新2

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

app/src/main/AndroidManifest.xml

@@ -24,7 +24,6 @@
         </activity>
         <activity android:name=".second"/>
 
-        <activity android:name=".third"/>
         <activity android:name=".four"/>
         <activity android:name=".collection"/>
         <provider

app/src/main/java/com/baidu/ai/aip/AuthService.java

@@ -0,0 +1,87 @@
+package com.baidu.ai.aip;
+
+import org.json.JSONObject;
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 获取token类
+ */
+public class AuthService {
+
+    /**
+     * 获取权限token
+     * @return 返回示例：
+     * {
+     * "access_token": "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567",
+     * "expires_in": 2592000
+     * }
+     */
+    public static String getAuth() {
+        // 官网获取的 API Key 更新为你注册的
+//        String clientId = "百度云应用的AK";
+        String clientId = "6H2WBMm7uYGYD2dKqH46EMrM";
+        // 官网获取的 Secret Key 更新为你注册的
+//        String clientSecret = "百度云应用的SK";
+        String clientSecret = "BoSgG8lqIcHfprxnNa2saHiwI5x3o1vP";
+        System.out.println(getAuth(clientId, clientSecret));
+        return getAuth(clientId, clientSecret);
+    }
+
+    /**
+     * 获取API访问token
+     * 该token有一定的有效期，需要自行管理，当失效时需重新获取.
+     * @param ak - 百度云官网获取的 API Key
+     * @param sk - 百度云官网获取的 Securet Key
+     * @return assess_token 示例：
+     * "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567"
+     */
+    public static String getAuth(String ak, String sk) {
+        // 获取token地址
+        String authHost = "https://aip.baidubce.com/oauth/2.0/token?";
+        String getAccessTokenUrl = authHost
+                // 1. grant_type为固定参数
+                + "grant_type=client_credentials"
+                // 2. 官网获取的 API Key
+                + "&client_id=" + ak
+                // 3. 官网获取的 Secret Key
+                + "&client_secret=" + sk;
+        try {
+            URL realUrl = new URL(getAccessTokenUrl);
+            // 打开和URL之间的连接
+            HttpURLConnection connection = (HttpURLConnection) realUrl.openConnection();
+            connection.setRequestMethod("GET");
+            connection.connect();
+            // 获取所有响应头字段
+            Map<String, List<String>> map = connection.getHeaderFields();
+            // 遍历所有的响应头字段
+            for (String key : map.keySet()) {
+                System.err.println(key + "--->" + map.get(key));
+            }
+            // 定义 BufferedReader输入流来读取URL的响应
+            BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
+            String result = "";
+            String line;
+            while ((line = in.readLine()) != null) {
+                result += line;
+            }
+            /**
+             * 返回结果示例
+             */
+            System.err.println("result:" + result);
+            JSONObject jsonObject = new JSONObject(result);
+            String access_token = jsonObject.getString("access_token");
+            return access_token;
+        } catch (Exception e) {
+            System.err.printf("获取token失败！");
+            e.printStackTrace(System.err);
+        }
+        return null;
+    }
+
+}

app/src/main/java/com/baidu/ai/aip/ImgCombination.java

@@ -20,7 +20,7 @@ public class ImgCombination {
      * https://ai.baidu.com/file/470B3ACCA3FE43788B5A963BF0B625F3
      * 下载
      */
-    public static String imgCombination() {
+    public String imgCombination() {
         // 请求url
         String url = "https://aip.baidubce.com/api/v1/solution/direct/imagerecognition/combination";
         try {

app/src/main/java/com/baidu/ai/aip/Ingredient.java

@@ -0,0 +1,54 @@
+
+package com.baidu.ai.aip;
+
+import com.baidu.ai.aip.utils.Base64Util;
+import com.baidu.ai.aip.utils.FileUtil;
+import com.baidu.ai.aip.utils.HttpUtil;
+
+import java.net.URLEncoder;
+
+/**
+ * 细粒度图像识别
+ */
+public class Ingredient {
+
+    /**
+     * 重要提示代码中所需工具类
+     * FileUtil,Base64Util,HttpUtil,GsonUtils请从
+     * https://ai.baidu.com/file/658A35ABAB2D404FBF903F64D47C1F72
+     * https://ai.baidu.com/file/C8D81F3301E24D2892968F09AE1AD6E2
+     * https://ai.baidu.com/file/544D677F5D4E4F17B4122FBD60DB82B3
+     * https://ai.baidu.com/file/470B3ACCA3FE43788B5A963BF0B625F3
+     * 下载
+     */
+    public static String ingredient() {
+        // 请求url
+        String url = "https://aip.baidubce.com/rest/2.0/image-classify/v1/classify/ingredient";
+        try {
+            // 本地文件路径
+            String filePath = "D:/li.jpg";
+            byte[] imgData = FileUtil.readFileByBytes(filePath);
+            String imgStr = Base64Util.encode(imgData);
+            String imgParam = URLEncoder.encode(imgStr, "UTF-8");
+
+            String param = "image=" + imgParam;
+
+            // 注意这里仅为了简化编码每一次请求都去获取access_token，线上环境access_token有过期时间， 客户端可自行缓存，过期后重新获取。
+            String accessToken = "24.bb5baa6f79502180928d105dd8ea46c8.2592000.1668576873.282335-27944955";
+
+//            AuthService auth = new AuthService();
+//            String accessToken = auth.getAuth();
+
+            String result = HttpUtil.post(url, accessToken, param);
+            System.out.println(result);
+            return result;
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    public static void main(String[] args) {
+        Ingredient.ingredient();
+    }
+}

app/src/main/java/com/baidu/ai/aip/ToIngredient.java

@@ -3,18 +3,15 @@ package com.baidu.ai.aip;
 import com.baidu.ai.aip.ImgCombination;
 import com.example.ceshi.four;
 
-public class ToIngredient extends ImgCombination{
+public class ToIngredient{
 
-    //public static void main(String[] args) {
-    public static String x(){
+    public static void main(String[] args) {
         ImgCombination img=new ImgCombination();
         String str =  img.imgCombination();
         String name=str.substring(str.indexOf("name")+7,str.indexOf("\"}"));
         String odds=str.substring(str.indexOf("score")+7,str.indexOf(","));
         String name_odds="有"+odds.substring(0,4)+"的概率是"+name;
-        return name_odds;
+        System.out.println("有"+odds.substring(0,4)+"的概率是"+name);
     }
-        //System.out.println("有"+odds.substring(0,4)+"的概率是"+name);
-    //}
 }
 

app/src/main/java/com/example/ceshi/first.java

@@ -15,7 +15,7 @@ public class first extends AppCompatActivity {
 
         //获取按钮
         Button button = findViewById(R.id.button);
-        Button button2 = findViewById(R.id.button2);
+//        Button button2 = findViewById(R.id.button2);
         Button button3 = findViewById(R.id.button3);
         Button button4 = findViewById(R.id.button4);
         //按钮进行监听
@@ -29,16 +29,16 @@ public class first extends AppCompatActivity {
                 startActivity(intent);
             }
         });
-        button2.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                //监听按钮，如果点击，就跳转
-                Intent intent = new Intent();
-                //前一个（MainActivity.this）是目前页面，后面一个是要跳转的下一个页面
-                intent.setClass(first.this,third.class);
-                startActivity(intent);
-            }
-        });
+//        button2.setOnClickListener(new View.OnClickListener() {
+//            @Override
+//            public void onClick(View v) {
+//                //监听按钮，如果点击，就跳转
+//                Intent intent = new Intent();
+//                //前一个（MainActivity.this）是目前页面，后面一个是要跳转的下一个页面
+//                intent.setClass(first.this,third.class);
+//                startActivity(intent);
+//            }
+//        });
         button3.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {

app/src/main/java/com/example/ceshi/four.java

@@ -79,13 +79,13 @@ public class four extends AppCompatActivity {
 
                         //ToIngredient to_in=new ToIngredient();
 
-//                        ImgCombination img1=new ImgCombination();
-//                        String str1 =img1.imgCombination();
+                        ImgCombination img1=new ImgCombination();
+                        String str1 =img1.imgCombination();
 ////                        ToIngredient ii= new ToIngredient();
 //                        String aa=ii.x();
                         //String name=str.substring(str.indexOf("name")+7,str.indexOf("\"}"));
                         TextView t1=findViewById(R.id.textView11);
-                        t1.setText("*"+ImgCombination.imgCombination()+"A");
+                        t1.setText(str1);
                     }catch (FileNotFoundException e){
                         e.printStackTrace();
                     }

app/src/main/java/com/example/ceshi/third.java

@@ -1,15 +0,0 @@
-package com.example.ceshi;
-
-import android.content.Intent;
-import android.view.View;
-import android.widget.Button;
-import androidx.appcompat.app.AppCompatActivity;
-import android.os.Bundle;
-public class third extends AppCompatActivity {
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.thirdview);
-    }
-}

app/src/main/res/layout/firstview.xml

@@ -9,17 +9,16 @@
     <RelativeLayout
             android:layout_width="match_parent"
             android:layout_height="match_parent">
-        <RelativeLayout
-                android:layout_width="match_parent"
-                android:layout_height="match_parent">
 
-            <TextView
-                    android:id="@+id/one"
-                    android:layout_width="200dp"
-                    android:layout_height="100dp"
-                    android:text="果识"
-                    android:textSize="75dp"
-            />
+        <TextView
+            android:id="@+id/one"
+            android:layout_width="200dp"
+            android:layout_height="100dp"
+
+            android:layout_marginStart="137dp"
+            android:layout_marginTop="50dp"
+            android:text="果识"
+            android:textSize="75dp" />
 
             <Button
                     android:id="@+id/button3"
@@ -28,30 +27,23 @@
                     tools:ignore="MissingConstraints"
                     android:text="水果鉴定"
                     android:layout_below="@+id/one"
-                    android:layout_marginTop="343dp" app:backgroundTint="#4CAF50"/>
-            <Button
-                    android:id="@+id/button2"
-                    android:layout_width="match_parent"
-                    android:layout_height="50dp"
-                    tools:ignore="MissingConstraints"
-                    android:text="水果处理"
-                    android:layout_below="@+id/one"
-                    android:layout_marginTop="267dp" app:backgroundTint="#4CAF50"/>
-            <Button
+                    android:layout_marginTop="170dp" app:backgroundTint="#4CAF50"/>
+
+        <Button
                     android:id="@+id/button"
                     android:layout_width="match_parent"
                     android:layout_height="50dp"
                     tools:ignore="MissingConstraints"
                     android:text="水果百科"
                     android:layout_below="@+id/one"
-                    android:layout_marginTop="188dp" app:backgroundTint="#4CAF50"/>
+                    android:layout_marginTop="100dp" app:backgroundTint="#4CAF50"/>
             <Button
                     android:text="我的收藏"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content" android:id="@+id/button4" app:backgroundTint="#FFB13B"
-                    android:insetBottom="6dp"
-                    android:layout_marginTop="520dp"/>
+                    android:layout_below="@+id/one"
+                    android:layout_marginTop="240dp"/>
         </RelativeLayout>
 
-    </RelativeLayout>
+
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/thirdview.xml

@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout
-        xmlns:android="http://schemas.android.com/apk/res/android"
-        xmlns:app="http://schemas.android.com/apk/res-auto"
-        xmlns:tools="http://schemas.android.com/tools"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        tools:context=".first">
-
-    <TextView
-            android:id="@+id/five"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:text="水果处理"
-            android:textSize="25dp"
-            android:textColor="#663399"
-            app:layout_constraintBottom_toBottomOf="parent"
-            app:layout_constraintLeft_toLeftOf="parent"
-            app:layout_constraintRight_toRightOf="parent"
-            app:layout_constraintTop_toTopOf="parent"/>
-    <SearchView
-            android:layout_width="408dp"
-            android:layout_height="96dp"
-            android:background="@drawable/green" tools:layout_editor_absoluteY="1dp" tools:layout_editor_absoluteX="2dp"
-            tools:ignore="MissingConstraints"/>
-</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/values/themes.xml

@@ -2,15 +2,15 @@
     <!-- Base application theme. -->
     <style name="Theme.Ceshi" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
         <!-- Primary brand color. -->
-        <item name="colorPrimary">@color/purple_500</item>
-        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorPrimary">#B792FA</item>
+        <item name="colorPrimaryVariant">#BFAFE1</item>
         <item name="colorOnPrimary">@color/white</item>
         <!-- Secondary brand color. -->
-        <item name="colorSecondary">@color/teal_200</item>
-        <item name="colorSecondaryVariant">@color/teal_700</item>
+        <item name="colorSecondary">#98D6D0</item>
+        <item name="colorSecondaryVariant">#58C1C0</item>
         <item name="colorOnSecondary">@color/black</item>
         <!-- Status bar color. -->
-        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
+        <item name="android:statusBarColor" tools:targetApi="l">#CCBBF1</item>
         <!-- Customize your theme here. -->
     </style>
 </resources>