diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 6dca9bf..09bf560 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -61,11 +61,6 @@
             android:name="org.apache.http.legacy"
             android:required="false" />
 
-        <!-- 百度地图开发者 Key -->
-        <meta-data
-            android:name="com.baidu.lbsapi.API_KEY"
-            android:value="${MAPS_API_KEY}" />
-
         <!-- 百度地图 间隔定位必须配置此service否则功能无效 -->
         <service
             android:name="com.baidu.location.f"
diff --git a/app/src/main/java/com/zcshou/gogogo/FragmentSettings.java b/app/src/main/java/com/zcshou/gogogo/FragmentSettings.java
index d6af450..38600ca 100644
--- a/app/src/main/java/com/zcshou/gogogo/FragmentSettings.java
+++ b/app/src/main/java/com/zcshou/gogogo/FragmentSettings.java
@@ -78,8 +78,6 @@ public class FragmentSettings extends PreferenceFragmentCompat {
                         return false;
                     } else {
                         pfMapKey.setSummary(newValue.toString());
-                        SDKInitializer.setApiKey(newValue.toString());
-                        SDKInitializer.initialize(requireContext().getApplicationContext());
                         return true;
                     }
                 }
diff --git a/app/src/main/java/com/zcshou/gogogo/GoApplication.java b/app/src/main/java/com/zcshou/gogogo/GoApplication.java
index bef167d..c930680 100644
--- a/app/src/main/java/com/zcshou/gogogo/GoApplication.java
+++ b/app/src/main/java/com/zcshou/gogogo/GoApplication.java
@@ -1,12 +1,13 @@
 package com.zcshou.gogogo;
 
 import android.app.Application;
+import android.content.SharedPreferences;
+import androidx.preference.PreferenceManager;
 
 import com.baidu.location.LocationClient;
 import com.baidu.mapapi.CoordType;
 import com.baidu.mapapi.SDKInitializer;
 
-import com.baidu.mapapi.common.BaiduMapSDKException;
 import com.elvishew.xlog.LogConfiguration;
 import com.elvishew.xlog.LogLevel;
 import com.elvishew.xlog.XLog;
@@ -30,18 +31,26 @@ public class GoApplication extends Application {
 
         initXlog();
 
+        // 参数生成默认值
+        PreferenceManager.setDefaultValues(this, R.xml.preferences_main, false);
+        // 获取参数实例
+        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
+
+        // 获取地图的 KEY 用来初始化地图 SDK
+        String key = preferences.getString("setting_map_key", BuildConfig.MAPS_API_KEY);
+        // 从参数区取地图 key
+        if (key != null && !key.equals(getResources().getString(R.string.setting_map_key_default))) {
+            SDKInitializer.setApiKey(key);
+        } else {
+            SDKInitializer.setApiKey(BuildConfig.MAPS_API_KEY);
+        }
         // 百度地图 7.5 开始，要求必须同意隐私政策，默认为false
         SDKInitializer.setAgreePrivacy(this, true);
         // 百度定位 7.5 开始，要求必须同意隐私政策，默认为false(官方说可以统一为以上接口，但实际测试并不行，定位还是需要单独设置)
         LocationClient.setAgreePrivacy(true);
-
-        try {
-            // 在使用 SDK 各组间之前初始化 context 信息，传入 ApplicationContext
-            SDKInitializer.initialize(this);
-            SDKInitializer.setCoordType(CoordType.BD09LL);
-        } catch (BaiduMapSDKException e) {
-            XLog.e("ERROR init baidu sdk");
-        }
+        // 在使用 SDK 各组间之前初始化 context 信息，传入 ApplicationContext
+        SDKInitializer.initialize(this);
+        SDKInitializer.setCoordType(CoordType.BD09LL);
     }
 
     /**
diff --git a/app/src/main/java/com/zcshou/gogogo/MainActivity.java b/app/src/main/java/com/zcshou/gogogo/MainActivity.java
index 7603907..c5d11bc 100644
--- a/app/src/main/java/com/zcshou/gogogo/MainActivity.java
+++ b/app/src/main/java/com/zcshou/gogogo/MainActivity.java
@@ -53,7 +53,6 @@ import com.baidu.location.BDAbstractLocationListener;
 import com.baidu.location.BDLocation;
 import com.baidu.location.LocationClient;
 import com.baidu.location.LocationClientOption;
-import com.baidu.mapapi.SDKInitializer;
 import com.baidu.mapapi.map.BaiduMap;
 import com.baidu.mapapi.map.BitmapDescriptor;
 import com.baidu.mapapi.map.BitmapDescriptorFactory;
@@ -455,13 +454,6 @@ public class MainActivity extends BaseActivity implements SensorEventListener {
 
     /*============================== 主界面地图 相关 ==============================*/
     private void initMap() {
-        // 从参数区取地图key
-        String key = sharedPreferences.getString("setting_map_key", BuildConfig.MAPS_API_KEY);
-        if (key != null && !key.equals(getResources().getString(R.string.setting_map_key_default))) {
-            SDKInitializer.setApiKey(key);
-            SDKInitializer.initialize(getApplicationContext());
-        }
-
         // 地图初始化
         mMapView = findViewById(R.id.bdMapView);
         mMapView.showZoomControls(false);
diff --git a/app/src/main/java/com/zcshou/gogogo/WelcomeActivity.java b/app/src/main/java/com/zcshou/gogogo/WelcomeActivity.java
index 8d822a5..2c7b320 100644
--- a/app/src/main/java/com/zcshou/gogogo/WelcomeActivity.java
+++ b/app/src/main/java/com/zcshou/gogogo/WelcomeActivity.java
@@ -23,7 +23,6 @@ import android.widget.TextView;
 
 import androidx.annotation.NonNull;
 import androidx.appcompat.app.AppCompatActivity;
-import androidx.preference.PreferenceManager;
 
 import com.zcshou.utils.GoUtils;
 
@@ -48,9 +47,6 @@ public class WelcomeActivity extends AppCompatActivity {
 
         setContentView(R.layout.activity_welcome);
 
-        // 生成默认参数的值（一定要尽可能早的调用，因为后续有些界面可能需要使用参数）
-        PreferenceManager.setDefaultValues(this, R.xml.preferences_main, false);
-
         Button startBtn = findViewById(R.id.startButton);
         startBtn.setOnClickListener(v -> startMainActivity());
 
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 91bc7bf..ee878b1 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -64,10 +64,10 @@
     <string name="setting_altitude">海拔高度(米)</string>
     <string name="setting_altitude_default">55.0</string>
     <!-- 地图相关参数 -->
-    <string name="setting_group_map">地图</string>
+    <string name="setting_group_map">地图(重启后生效)</string>
     <string name="setting_map_type">地图类型</string>
     <string name="setting_map_key">地图 KEY</string>
-    <string name="setting_map_key_default">无自定义 KEY</string>
+    <string name="setting_map_key_default">内置 KEY</string>
     <!-- 位置偏移相关参数 -->
     <string name="setting_group_location_offset">位置偏移</string>
     <string name="setting_random_offset">随机偏移</string>