diff --git a/app/src/main/java/com/idormy/sms/forwarder/MainActivity.java b/app/src/main/java/com/idormy/sms/forwarder/MainActivity.java
index 94299315..d2669696 100644
--- a/app/src/main/java/com/idormy/sms/forwarder/MainActivity.java
+++ b/app/src/main/java/com/idormy/sms/forwarder/MainActivity.java
@@ -31,6 +31,7 @@ import com.idormy.sms.forwarder.utils.PhoneUtils;
 import com.idormy.sms.forwarder.utils.SettingUtil;
 import com.idormy.sms.forwarder.utils.SmsUtil;
 import com.idormy.sms.forwarder.utils.TimeUtil;
+import com.umeng.analytics.MobclickAgent;
 
 import java.lang.reflect.Method;
 import java.util.ArrayList;
@@ -67,9 +68,13 @@ public class MainActivity extends AppCompatActivity implements RefreshListView.I
         NetUtil.init(this);
 
         //前台服务
-        serviceIntent = new Intent(MainActivity.this, FrontService.class);
-        serviceIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-        startService(serviceIntent);
+        try {
+            serviceIntent = new Intent(MainActivity.this, FrontService.class);
+            serviceIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            startService(serviceIntent);
+        } catch (Exception e) {
+            Log.e(TAG, "onCreate:", e);
+        }
     }
 
     @Override
@@ -147,6 +152,8 @@ public class MainActivity extends AppCompatActivity implements RefreshListView.I
     @Override
     protected void onResume() {
         super.onResume();
+        MobclickAgent.onResume(this);
+
         //第一次打开，未授权无法获取SIM信息，尝试在此重新获取
         if (MyApplication.SimInfoList.isEmpty()) {
             MyApplication.SimInfoList = PhoneUtils.getSimMultiInfo();
@@ -156,7 +163,7 @@ public class MainActivity extends AppCompatActivity implements RefreshListView.I
         //省电优化设置为无限制
         if (Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {
             if (!KeepAliveUtils.isIgnoreBatteryOptimization(this)) {
-                Toast.makeText(this, "请将省电优化设置为无限制(不优化)，有利于《短信转发器》保活！", Toast.LENGTH_LONG).show();
+                Toast.makeText(this, R.string.tips_battery_optimization, Toast.LENGTH_LONG).show();
             }
         }
 
@@ -164,22 +171,36 @@ public class MainActivity extends AppCompatActivity implements RefreshListView.I
         if (SettingUtil.getSwitchEnableAppNotify() && !CommonUtil.isNotificationListenerServiceEnabled(this)) {
             CommonUtil.toggleNotificationListenerService(this);
             SettingUtil.switchEnableAppNotify(false);
-            Toast.makeText(this, "请先授予《短信转发器》通知使用权，否则无法转发APP通知，已经自动关闭转发!", Toast.LENGTH_LONG).show();
+            Toast.makeText(this, R.string.tips_notification_listener, Toast.LENGTH_LONG).show();
             return;
         }
-        startService(serviceIntent);
+
+        try {
+            if (serviceIntent != null) startService(serviceIntent);
+        } catch (Exception e) {
+            Log.e(TAG, "onResume:", e);
+        }
     }
 
     @Override
     protected void onDestroy() {
         super.onDestroy();
-        startService(serviceIntent);
+        try {
+            if (serviceIntent != null) startService(serviceIntent);
+        } catch (Exception e) {
+            Log.e(TAG, "onDestroy:", e);
+        }
     }
 
     @Override
     protected void onPause() {
         super.onPause();
-        startService(serviceIntent);
+        MobclickAgent.onPause(this);
+        try {
+            if (serviceIntent != null) startService(serviceIntent);
+        } catch (Exception e) {
+            Log.e(TAG, "onPause:", e);
+        }
     }
 
     @Override
@@ -187,10 +208,10 @@ public class MainActivity extends AppCompatActivity implements RefreshListView.I
         super.onActivityResult(requestCode, resultCode, data);
         if (requestCode == CommonUtil.NOTIFICATION_REQUEST_CODE) {
             if (CommonUtil.isNotificationListenerServiceEnabled(this)) {
-                Toast.makeText(this, "通知服务已开启", Toast.LENGTH_SHORT).show();
+                Toast.makeText(this, R.string.notification_listener_service_enabled, Toast.LENGTH_SHORT).show();
                 CommonUtil.toggleNotificationListenerService(this);
             } else {
-                Toast.makeText(this, "通知服务未开启", Toast.LENGTH_SHORT).show();
+                Toast.makeText(this, R.string.notification_listener_service_disabled, Toast.LENGTH_SHORT).show();
             }
         }
     }
diff --git a/app/src/main/java/com/idormy/sms/forwarder/MyApplication.java b/app/src/main/java/com/idormy/sms/forwarder/MyApplication.java
index 72b05bee..96b4558c 100644
--- a/app/src/main/java/com/idormy/sms/forwarder/MyApplication.java
+++ b/app/src/main/java/com/idormy/sms/forwarder/MyApplication.java
@@ -75,27 +75,31 @@ public class MyApplication extends Application {
     public void onCreate() {
         Log.d(TAG, "onCreate");
         super.onCreate();
-        //初始化组件化基础库, 所有友盟业务SDK都必须调用此初始化接口。
-        //建议在宿主App的Application.onCreate函数中调用基础组件库初始化函数。
-        UMConfigure.init(this, "60254fc7425ec25f10f4293e", getChannelName(this), UMConfigure.DEVICE_TYPE_PHONE, "");
-        // 选用LEGACY_AUTO页面采集模式
-        MobclickAgent.setPageCollectionMode(MobclickAgent.PageMode.LEGACY_MANUAL);
-        //pro close log
-        UMConfigure.setLogEnabled(true);
 
-        Intent intent = new Intent(this, FrontService.class);
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            startForegroundService(intent);
-        } else {
-            startService(intent);
-        }
-        SendHistory.init(this);
-        SettingUtil.init(this);
+        try {
+            //初始化组件化基础库, 所有友盟业务SDK都必须调用此初始化接口。
+            //建议在宿主App的Application.onCreate函数中调用基础组件库初始化函数。
+            UMConfigure.init(this, "60254fc7425ec25f10f4293e", getChannelName(this), UMConfigure.DEVICE_TYPE_PHONE, "");
+            // 选用LEGACY_AUTO页面采集模式
+            MobclickAgent.setPageCollectionMode(MobclickAgent.PageMode.LEGACY_MANUAL);
+            //pro close log
+            UMConfigure.setLogEnabled(true);
 
-        EmailKit.initialize(this);
+            Intent intent = new Intent(this, FrontService.class);
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                startForegroundService(intent);
+            } else {
+                startService(intent);
+            }
+            SendHistory.init(this);
+            SettingUtil.init(this);
 
-        SharedPreferences sp = MyApplication.this.getSharedPreferences(Define.SP_CONFIG, Context.MODE_PRIVATE);
-        showHelpTip = sp.getBoolean(Define.SP_CONFIG_SWITCH_HELP_TIP, true);
+            EmailKit.initialize(this);
 
+            SharedPreferences sp = MyApplication.this.getSharedPreferences(Define.SP_CONFIG, Context.MODE_PRIVATE);
+            showHelpTip = sp.getBoolean(Define.SP_CONFIG_SWITCH_HELP_TIP, true);
+        } catch (Exception e) {
+            Log.e(TAG, "onCreate:", e);
+        }
     }
 }
diff --git a/app/src/main/java/com/idormy/sms/forwarder/SettingActivity.java b/app/src/main/java/com/idormy/sms/forwarder/SettingActivity.java
index 8bf22e96..7a0e57f0 100644
--- a/app/src/main/java/com/idormy/sms/forwarder/SettingActivity.java
+++ b/app/src/main/java/com/idormy/sms/forwarder/SettingActivity.java
@@ -361,7 +361,7 @@ public class SettingActivity extends AppCompatActivity {
         if (!CommonUtil.isNotificationListenerServiceEnabled(this)) {
             CommonUtil.openNotificationAccess(this);
         } else {
-            Toast.makeText(this, "通知服务已开启", Toast.LENGTH_SHORT).show();
+            Toast.makeText(this, R.string.notification_listener_service_enabled, Toast.LENGTH_SHORT).show();
             CommonUtil.toggleNotificationListenerService(this);
         }
     }
@@ -371,11 +371,16 @@ public class SettingActivity extends AppCompatActivity {
         super.onActivityResult(requestCode, resultCode, data);
         if (requestCode == CommonUtil.NOTIFICATION_REQUEST_CODE) {
             if (CommonUtil.isNotificationListenerServiceEnabled(this)) {
-                Toast.makeText(this, "通知服务已开启", Toast.LENGTH_SHORT).show();
+                Toast.makeText(this, R.string.notification_listener_service_enabled, Toast.LENGTH_SHORT).show();
                 CommonUtil.toggleNotificationListenerService(this);
+                SettingUtil.switchEnableAppNotify(true);
             } else {
-                Toast.makeText(this, "通知服务未开启", Toast.LENGTH_SHORT).show();
+                Toast.makeText(this, R.string.notification_listener_service_disabled, Toast.LENGTH_SHORT).show();
+                SettingUtil.switchEnableAppNotify(false);
             }
+
+            @SuppressLint("UseSwitchCompatOrMaterialCode") Switch switch_enable_app_notify = findViewById(R.id.switch_enable_app_notify);
+            switch_enable_app_notify.setChecked(SettingUtil.getSwitchEnableAppNotify());
         }
     }
 
diff --git a/app/src/main/java/com/idormy/sms/forwarder/adapter/AppAdapter.java b/app/src/main/java/com/idormy/sms/forwarder/adapter/AppAdapter.java
index 574353a8..5bc17325 100644
--- a/app/src/main/java/com/idormy/sms/forwarder/adapter/AppAdapter.java
+++ b/app/src/main/java/com/idormy/sms/forwarder/adapter/AppAdapter.java
@@ -1,5 +1,6 @@
 package com.idormy.sms.forwarder.adapter;
 
+import android.annotation.SuppressLint;
 import android.content.Context;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -40,6 +41,7 @@ public class AppAdapter extends ArrayAdapter<AppInfo> {
         return 0;
     }
 
+    @SuppressLint("SetTextI18n")
     @Override
     public View getView(int position, View convertView, ViewGroup parent) {
         AppInfo appInfo = getItem(position); //获取当前项的TLog实例
diff --git a/app/src/main/java/com/idormy/sms/forwarder/model/AppInfo.java b/app/src/main/java/com/idormy/sms/forwarder/model/AppInfo.java
index 190a7c7a..0c4ed732 100644
--- a/app/src/main/java/com/idormy/sms/forwarder/model/AppInfo.java
+++ b/app/src/main/java/com/idormy/sms/forwarder/model/AppInfo.java
@@ -3,6 +3,8 @@ package com.idormy.sms.forwarder.model;
 import android.content.Intent;
 import android.graphics.drawable.Drawable;
 
+import androidx.annotation.NonNull;
+
 import lombok.Data;
 
 @Data
@@ -34,6 +36,7 @@ public class AppInfo {
         this.verCode = verCode;
     }
 
+    @NonNull
     @Override
     public String toString() {
         return "AppInfo{" +
diff --git a/app/src/main/java/com/idormy/sms/forwarder/service/NotifyService.java b/app/src/main/java/com/idormy/sms/forwarder/service/NotifyService.java
index 9bd65e23..1866db15 100644
--- a/app/src/main/java/com/idormy/sms/forwarder/service/NotifyService.java
+++ b/app/src/main/java/com/idormy/sms/forwarder/service/NotifyService.java
@@ -41,38 +41,47 @@ public class NotifyService extends NotificationListenerService {
         //自身通知跳过
         if ("com.idormy.sms.forwarder".equals(packageName)) return;
 
-        //通知标题
-        String title = sbn.getNotification().extras.get("android.title").toString();
-        //通知内容
-        String text = sbn.getNotification().extras.get("android.text").toString();
-        if (text.isEmpty() && sbn.getNotification().tickerText != null) {
-            text = sbn.getNotification().tickerText.toString();
+        try {
+            //通知标题
+            String title = "";
+            if (sbn.getNotification().extras.get("android.title") != null) {
+                title = sbn.getNotification().extras.get("android.title").toString();
+            }
+            //通知内容
+            String text = "";
+            if (sbn.getNotification().extras.get("android.text") != null) {
+                text = sbn.getNotification().extras.get("android.text").toString();
+            }
+            if (text.isEmpty() && sbn.getNotification().tickerText != null) {
+                text = sbn.getNotification().tickerText.toString();
+            }
+            //不处理空消息（标题跟内容都为空）
+            if (title.isEmpty() && text.isEmpty()) return;
+
+            //通知时间
+            String time = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.CHINESE).format(new Date(sbn.getPostTime()));
+            Log.d(TAG, String.format(
+                    Locale.getDefault(),
+                    "onNotificationPosted：\n应用包名：%s\n消息标题：%s\n消息内容：%s\n消息时间：%s\n",
+                    packageName, title, text, time)
+            );
+
+            //重复通知不再处理
+            String prevHash = SettingUtil.getPrevNoticeHash(packageName);
+            String currHash = CommonUtil.MD5(packageName + title + text + time);
+            Log.d(TAG, "prevHash=" + prevHash + " currHash=" + currHash);
+            if (prevHash != null && prevHash.equals(currHash)) {
+                Log.w(TAG, "重复通知不再处理");
+                return;
+            }
+            SettingUtil.setPrevNoticeHash(packageName, currHash);
+
+            SmsVo smsVo = new SmsVo(packageName, text, new Date(), title);
+            Log.d(TAG, "send_msg" + smsVo.toString());
+            SendUtil.send_msg(this, smsVo, 1, "app");
+        } catch (Exception e) {
+            Log.e(TAG, "onNotificationPosted:", e);
         }
-        //不处理空消息（标题跟内容都为空）
-        if (title.isEmpty() && text.isEmpty()) return;
-
-        //通知时间
-        String time = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.CHINESE).format(new Date(sbn.getPostTime()));
-        Log.d(TAG, String.format(
-                Locale.getDefault(),
-                "onNotificationPosted：\n应用包名：%s\n消息标题：%s\n消息内容：%s\n消息时间：%s\n",
-                packageName, title, text, time)
-        );
-
-        //重复通知不再处理
-        String prevHash = SettingUtil.getPrevNoticeHash(packageName);
-        String currHash = CommonUtil.MD5(packageName + title + text + time);
-        Log.d(TAG, "prevHash=" + prevHash + " currHash=" + currHash);
-        if (prevHash != null && prevHash.equals(currHash)) {
-            Log.w(TAG, "重复通知不再处理");
-            return;
-        }
-        SettingUtil.setPrevNoticeHash(packageName, currHash);
-
-        SmsVo smsVo = new SmsVo(packageName, text, new Date(), title);
-        Log.d(TAG, "send_msg" + smsVo.toString());
-        SendUtil.send_msg(this, smsVo, 1, "app");
-
         //NotifyHelper.getInstance().onReceive(sbn);
     }
 
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 40275c9a..bb06ead4 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -74,7 +74,7 @@
                 android:background="@color/colorPrimary"
                 android:onClick="cleanLog"
                 android:text="@string/bt_refresh_log"
-                tools:ignore="ButtonStyle,NestedWeights" />
+                tools:ignore="ButtonStyle,NestedWeights,UsingOnClickInXml" />
 
             <Button
                 android:layout_width="match_parent"
@@ -86,7 +86,7 @@
                 android:background="@color/colorPrimary"
                 android:onClick="toRuleSetting"
                 android:text="@string/rule_setting"
-                tools:ignore="ButtonStyle,NestedWeights" />
+                tools:ignore="ButtonStyle,NestedWeights,UsingOnClickInXml" />
 
             <Button
                 android:layout_width="match_parent"
@@ -99,7 +99,7 @@
                 android:background="@color/colorPrimary"
                 android:onClick="toSendSetting"
                 android:text="@string/sender_setting"
-                tools:ignore="ButtonStyle" />
+                tools:ignore="ButtonStyle,UsingOnClickInXml" />
         </LinearLayout>
     </LinearLayout>
 
diff --git a/app/src/main/res/mipmap-hdpi/sim1.png b/app/src/main/res/mipmap-hdpi/sim1.png
deleted file mode 100644
index 5cb04097..00000000
Binary files a/app/src/main/res/mipmap-hdpi/sim1.png and /dev/null differ
diff --git a/app/src/main/res/mipmap-hdpi/sim2.png b/app/src/main/res/mipmap-hdpi/sim2.png
deleted file mode 100644
index d03b9fc7..00000000
Binary files a/app/src/main/res/mipmap-hdpi/sim2.png and /dev/null differ
diff --git a/app/src/main/res/mipmap-mdpi/sim1.png b/app/src/main/res/mipmap-mdpi/sim1.png
deleted file mode 100644
index f757e479..00000000
Binary files a/app/src/main/res/mipmap-mdpi/sim1.png and /dev/null differ
diff --git a/app/src/main/res/mipmap-mdpi/sim2.png b/app/src/main/res/mipmap-mdpi/sim2.png
deleted file mode 100644
index d6e41ae6..00000000
Binary files a/app/src/main/res/mipmap-mdpi/sim2.png and /dev/null differ
diff --git a/app/src/main/res/mipmap-xhdpi/sim1.png b/app/src/main/res/mipmap-xhdpi/sim1.png
deleted file mode 100644
index 840cfb15..00000000
Binary files a/app/src/main/res/mipmap-xhdpi/sim1.png and /dev/null differ
diff --git a/app/src/main/res/mipmap-xhdpi/sim2.png b/app/src/main/res/mipmap-xhdpi/sim2.png
deleted file mode 100644
index e48bddd8..00000000
Binary files a/app/src/main/res/mipmap-xhdpi/sim2.png and /dev/null differ
diff --git a/app/src/main/res/mipmap-xxhdpi/sim1.png b/app/src/main/res/mipmap-xxhdpi/sim1.png
deleted file mode 100644
index a23a728b..00000000
Binary files a/app/src/main/res/mipmap-xxhdpi/sim1.png and /dev/null differ
diff --git a/app/src/main/res/mipmap-xxhdpi/sim2.png b/app/src/main/res/mipmap-xxhdpi/sim2.png
deleted file mode 100644
index a96425f4..00000000
Binary files a/app/src/main/res/mipmap-xxhdpi/sim2.png and /dev/null differ
diff --git a/app/src/main/res/mipmap-xxxhdpi/sim1.png b/app/src/main/res/mipmap-xxxhdpi/sim1.png
deleted file mode 100644
index 64633d1d..00000000
Binary files a/app/src/main/res/mipmap-xxxhdpi/sim1.png and /dev/null differ
diff --git a/app/src/main/res/mipmap-xxxhdpi/sim2.png b/app/src/main/res/mipmap-xxxhdpi/sim2.png
deleted file mode 100644
index a0470c1c..00000000
Binary files a/app/src/main/res/mipmap-xxxhdpi/sim2.png and /dev/null differ
diff --git a/app/src/main/res/values-en/strings.xml b/app/src/main/res/values-en/strings.xml
index f91bcbc5..58c899b6 100644
--- a/app/src/main/res/values-en/strings.xml
+++ b/app/src/main/res/values-en/strings.xml
@@ -217,4 +217,8 @@
     <string name="appicon">App Icon</string>
     <string name="user_app">User App</string>
     <string name="system_app">System App</string>
+    <string name="tips_battery_optimization">请将省电优化设置为无限制(不优化)，有利于《短信转发器》保活！</string>
+    <string name="tips_notification_listener">请先授予《短信转发器》通知使用权，否则无法转发APP通知，已经自动关闭转发!</string>
+    <string name="notification_listener_service_enabled">通知服务已开启</string>
+    <string name="notification_listener_service_disabled">通知服务未开启</string>
 </resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 70135fd8..039550aa 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -216,4 +216,8 @@
     <string name="appicon">应用图标</string>
     <string name="user_app">用户应用</string>
     <string name="system_app">系统应用</string>
+    <string name="tips_battery_optimization">请将省电优化设置为无限制(不优化)，有利于《短信转发器》保活！</string>
+    <string name="tips_notification_listener">请先授予《短信转发器》通知使用权，否则无法转发APP通知，已经自动关闭转发!</string>
+    <string name="notification_listener_service_enabled">通知服务已开启</string>
+    <string name="notification_listener_service_disabled">通知服务未开启</string>
 </resources>