继续增加配置背景图的按钮，修订以前的错误。发生了新的bug

app/src/main/java/com/example/flomo_ai/SecondActivity.kt

@@ -1,26 +1,27 @@
 package com.example.flomo_ai
 
 import android.annotation.SuppressLint
-import android.os.Bundle
-import android.graphics.Color
-import android.widget.Button
-import android.widget.EditText
-import android.widget.LinearLayout
-import android.widget.TextView
-import androidx.appcompat.app.AppCompatActivity
-import com.google.gson.Gson
-import com.google.gson.reflect.TypeToken
-
 import android.app.Activity
 import android.content.Intent
 import android.graphics.Bitmap
 import android.graphics.BitmapFactory
+import android.graphics.Color
 import android.net.Uri
+import android.os.Bundle
 import android.provider.MediaStore
+import android.util.Log
+import android.widget.Button
+import android.widget.EditText
+import android.widget.LinearLayout
+import android.widget.TextView
 import androidx.activity.result.ActivityResultLauncher
 import androidx.activity.result.contract.ActivityResultContracts
+import androidx.appcompat.app.AppCompatActivity
+import com.google.gson.Gson
+import com.google.gson.reflect.TypeToken
 import java.io.InputStream
 
+
 class SecondActivity : AppCompatActivity() {
     private lateinit var etApiButtonName: EditText
     private lateinit var etApiName: EditText
@@ -39,16 +40,18 @@ class SecondActivity : AppCompatActivity() {
     }
 
     override fun onCreate(savedInstanceState: Bundle?) {
-        setTheme(androidx.appcompat.R.style.Theme_AppCompat)
         super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_second)  // 确认布局文件正确
 
         initViews()
         loadConfigs()
         displayConfigs()
 
-        val btnGoBack: Button = findViewById(R.id.btnGoBack)
+        val btnGoBack: Button = findViewById(R.id.btnGoBack);
         btnGoBack.setOnClickListener {
-            finish()
+            val intent = Intent(this, MainActivity::class.java);
+            startActivity(intent);
+            finish();
         }
 
         btnSave.setOnClickListener {
@@ -85,14 +88,14 @@ class SecondActivity : AppCompatActivity() {
     }
 
     private fun initViews() {
-        etApiButtonName = findViewById(R.id.etApiButtonName)
-        etApiName = findViewById(R.id.etApiName)
-        etApiUrl = findViewById(R.id.etApiUrl)
-        etApiKey = findViewById(R.id.etApiKey)
-        etApiSecretKey = findViewById(R.id.etApiSecretKey)
-        etApiModel = findViewById(R.id.etApiModel)
-        btnSave = findViewById(R.id.btnSave)
-        llConfigList = findViewById(R.id.llConfigList)
+        etApiName = findViewById(R.id.etApiName) ?: throw IllegalStateException("etApiName is not found")
+        etApiUrl = findViewById(R.id.etApiUrl) ?: throw IllegalStateException("etApiUrl is not found")
+        etApiKey = findViewById(R.id.etApiKey) ?: throw IllegalStateException("etApiKey is not found")
+        etApiSecretKey = findViewById(R.id.etApiSecretKey) ?: throw IllegalStateException("etApiSecretKey is not found")
+        etApiModel = findViewById(R.id.etApiModel) ?: throw IllegalStateException("etApiModel is not found")
+        etApiButtonName = findViewById(R.id.etApiButtonName) ?: throw IllegalStateException("etApiButtonName is not found")
+        btnSave = findViewById(R.id.btnSave) ?: throw IllegalStateException("btnSave is not found")
+        llConfigList = findViewById(R.id.llConfigList) ?: throw IllegalStateException("llConfigList is not found")
     }
 
     private fun loadConfigs() {
@@ -106,8 +109,16 @@ class SecondActivity : AppCompatActivity() {
 
     private fun saveConfigs() {
         val sharedPrefs = getSharedPreferences("APIConfigs", MODE_PRIVATE)
-        val json = Gson().toJson(configs)
-        sharedPrefs.edit().putString("configs", json).apply()
+        val editor = sharedPrefs.edit()
+        if (editor != null) {
+            val gson = Gson()
+            val json = gson.toJson(configs)
+            Log.d("ConfigDebug", "Saving configs: $json")
+            editor.putString("configs", json)
+            editor.apply()
+        } else {
+            Log.e("ConfigDebug", "Failed to get SharedPreferences.Editor")
+        }
     }
 
     private fun addConfig() {

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

@@ -31,10 +31,8 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_marginTop="16dp"
-            android:autofillHints=""
             android:hint="API 按钮显示名称"
-            android:minHeight="48dp"
-            tools:ignore="HardcodedText,TextFields" />
+            android:minHeight="48dp" />
 
         <EditText
             android:id="@+id/etApiName"
@@ -82,29 +80,28 @@
             android:id="@+id/btnSave"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:text="@string/save_config"
-            android:layout_marginTop="16dp" />
+            android:layout_marginTop="16dp"
+            android:text="@string/save_config" />
 
         <LinearLayout
             android:id="@+id/llConfigList"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:orientation="vertical"
-            android:layout_marginTop="16dp" />
-        android:background="#background_color"> <!-- 设置背景色 -->
+            android:layout_marginTop="16dp"
+            android:orientation="vertical" />
 
         <TextView
-            android:text="设置背景图片"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
+            android:text="设置背景图片"
             tools:ignore="HardcodedText" />
 
         <Button
             android:id="@+id/chooseButton"
-            android:text="选择图片"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_centerInParent="true"/>
+            android:layout_centerInParent="true"
+            android:text="选择图片" />
 
     </LinearLayout>