增加配置背景图的按钮，修订以前的错误

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

@@ -33,6 +33,13 @@ import org.json.JSONObject
 import com.squareup.moshi.Moshi
 import com.squareup.moshi.kotlin.reflect.KotlinJsonAdapterFactory
 
+import android.graphics.Bitmap
+import android.graphics.BitmapFactory
+import android.graphics.drawable.BitmapDrawable
+import android.net.Uri
+import android.widget.LinearLayout
+import java.io.InputStream
+
 // 定义请求体数据类
 data class ChatRequest(
     val model: String,
@@ -88,7 +95,6 @@ fun extractLabels(responseBody: String): List<String>? {
 }
 
 class MainActivity : AppCompatActivity() {
-
     private lateinit var inputEditText: EditText
     private lateinit var configButton: Button
     private lateinit var submitToZhiPuAIButton: Button
@@ -351,6 +357,23 @@ class MainActivity : AppCompatActivity() {
                 tabLayout.addTab(this)
             }
         }
+
+        // 创建背景图
+        val mainLinearLayout: LinearLayout = findViewById(R.id.mainLinearLayout)
+
+        // 从Intent中获取Uri
+        val selectedImageUri: Uri? = intent.data
+        selectedImageUri?.let { uri ->
+            val bitmap = getBitmapFromUri(uri)
+            bitmap?.let {
+                mainLinearLayout.background = BitmapDrawable(resources, it)
+            }
+        }
+    }
+
+    private fun getBitmapFromUri(uri: Uri): Bitmap? {
+        val inputStream: InputStream? = contentResolver.openInputStream(uri)
+        return BitmapFactory.decodeStream(inputStream)
     }
 
     @SuppressLint("SetTextI18n")