整理：code review

app/src/main/AndroidManifest.xml

@@ -55,7 +55,7 @@
         android:supportsRtl="true"
         android:theme="@style/AppTheme"
         android:usesCleartextTraffic="true"
-        tools:targetApi="m">
+        tools:ignore="UnusedAttribute">
 
         <activity
             android:name=".MainActivity"

app/src/main/java/com/idormy/sms/forwarder/MainActivity.java

@@ -229,31 +229,31 @@ public class MainActivity extends AppCompatActivity implements RefreshListView.I
     protected void onResume() {
         super.onResume();
 
-        //是否同意隐私协议
-        if (!MyApplication.allowPrivacyPolicy) return;
+        try {
+            //是否同意隐私协议
+            if (!MyApplication.allowPrivacyPolicy) return;
 
-        //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();
-        }
-        Log.d(TAG, "SimInfoList = " + MyApplication.SimInfoList.size());
+            //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();
+            }
+            Log.d(TAG, "SimInfoList = " + MyApplication.SimInfoList.size());
 
-        //省电优化设置为无限制
-        if (MyApplication.showHelpTip && Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {
-            if (!KeepAliveUtils.isIgnoreBatteryOptimization(this)) {
-                Toast.makeText(this, R.string.tips_battery_optimization, Toast.LENGTH_LONG).show();
+            //省电优化设置为无限制
+            if (MyApplication.showHelpTip && Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {
+                if (!KeepAliveUtils.isIgnoreBatteryOptimization(this)) {
+                    Toast.makeText(this, R.string.tips_battery_optimization, Toast.LENGTH_LONG).show();
+                }
             }
-        }
 
-        //开启读取通知栏权限
-        if (SettingUtil.getSwitchEnableAppNotify() && !CommonUtil.isNotificationListenerServiceEnabled(this)) {
-            CommonUtil.toggleNotificationListenerService(this);
-            SettingUtil.switchEnableAppNotify(false);
-            Toast.makeText(this, R.string.tips_notification_listener, Toast.LENGTH_LONG).show();
-            return;
-        }
+            //开启读取通知栏权限
+            if (SettingUtil.getSwitchEnableAppNotify() && !CommonUtil.isNotificationListenerServiceEnabled(this)) {
+                CommonUtil.toggleNotificationListenerService(this);
+                SettingUtil.switchEnableAppNotify(false);
+                Toast.makeText(this, R.string.tips_notification_listener, Toast.LENGTH_LONG).show();
+                return;
+            }
 
-        try {
             if (serviceIntent != null) startService(serviceIntent);
         } catch (Exception e) {
             Log.e(TAG, "onResume:", e);

app/src/main/java/com/idormy/sms/forwarder/utils/BackupDbTask.java

@@ -12,7 +12,7 @@ import java.io.IOException;
 import java.io.InterruptedIOException;
 import java.nio.channels.FileChannel;
 
-@SuppressWarnings("ResultOfMethodCallIgnored")
+@SuppressWarnings({"ResultOfMethodCallIgnored", "CommentedOutCode"})
 public class BackupDbTask {
     private static final String TAG = "BackupDbTask";
     public static final String COMMAND_BACKUP = "backupDatabase";
@@ -88,7 +88,6 @@ public class BackupDbTask {
                 Log.d(TAG, "restore success! 数据库文件名：" + dbFile.getName() + "\t" + backup_version);
 
                 try {
-                    //noinspection BusyWait
                     Thread.sleep(1000);
                 } catch (final InterruptedException e) {
                     Thread.currentThread().interrupt();

app/src/main/java/com/idormy/sms/forwarder/utils/DownloadUtil.java

@@ -1,9 +1,12 @@
 package com.idormy.sms.forwarder.utils;
 
+import androidx.annotation.NonNull;
+
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.Objects;
 
 import okhttp3.Call;
 import okhttp3.Callback;
@@ -37,16 +40,17 @@ public class DownloadUtil {
         Request request = new Request.Builder().url(url).addHeader("Connection", "close").build();
         okHttpClient.newCall(request).enqueue(new Callback() {
             @Override
-            public void onFailure(Call call, IOException e) {
+            public void onFailure(@NonNull Call call, @NonNull IOException e) {
                 // 下载失败监听回调
                 listener.onDownloadFailed(e);
             }
 
+            @SuppressWarnings("ResultOfMethodCallIgnored")
             @Override
-            public void onResponse(Call call, Response response) throws IOException {
+            public void onResponse(@NonNull Call call, @NonNull Response response) throws IOException {
                 InputStream is = null;
                 byte[] buf = new byte[2048];
-                int len = 0;
+                int len;
                 FileOutputStream fos = null;
 
                 // 储存下载文件的目录
@@ -57,8 +61,8 @@ public class DownloadUtil {
                 if (file.exists()) file.delete();
 
                 try {
-                    is = response.body().byteStream();
-                    long total = response.body().contentLength();
+                    is = Objects.requireNonNull(response.body()).byteStream();
+                    long total = Objects.requireNonNull(response.body()).contentLength();
                     fos = new FileOutputStream(file);
                     long sum = 0;
                     while ((len = is.read(buf)) != -1) {
@@ -78,6 +82,7 @@ public class DownloadUtil {
                         if (is != null) is.close();
                         if (fos != null) fos.close();
                     } catch (IOException e) {
+                        e.printStackTrace();
                     }
                 }
             }

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

@@ -85,6 +85,6 @@
         android:layout_alignParentEnd="true"
         android:layout_alignParentBottom="true"
         app:current_step="rule"
-        app:help_tip="@string/log_tips" />
+        app:help_tip="@string/rule_tips" />
 
 </RelativeLayout>

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

@@ -30,7 +30,7 @@
                 android:importantForAutofill="no"
                 android:inputType="text"
                 android:singleLine="true"
-                tools:ignore="LabelFor" />
+                tools:ignore="LabelFor,TextFields" />
 
             <Switch
                 android:id="@+id/switchEmailEnable"

app/src/main/res/values-en/strings.xml

@@ -201,7 +201,6 @@
     <string name="battery_setting">Battery Optimization</string>
     <string name="battery_setting_tips">Set it to manual management, including automatic startup, associated startup, and background running</string>
     <string name="unknown_number">Unknown Number</string>
-    <string name="calling">Incoming telegram</string>
     <string name="unsupport">Your phone does not support this setting</string>
     <string name="isIgnored">Set successfully!</string>
     <string name="isIgnored2">Can not directly operate the system power saving optimization Settings</string>
@@ -232,7 +231,6 @@
     <string name="sender_cannot_receive">This mobile phone is the SOURCE and cannot receive files.</string>
     <string name="no_wifi_network">Http Server does NOT work without Wi-Fi connection.</string>
     <string name="invalid_server_ip">Please enter a valid server IP address</string>
-    <string name="download_success">Download Success</string>
     <string name="on_wireless_network">A Wireless network connected.</string>
     <string name="on_mobile_network">A Mobile network connected.</string>
     <string name="no_network">Not connected to a network.</string>

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

@@ -201,7 +201,6 @@
     <string name="battery_setting">忽略电池优化设置</string>
     <string name="battery_setting_tips">请设置为手动管理：允许自启动、允许关联启动、允许后台运行</string>
     <string name="unknown_number">未知号码</string>
-    <string name="calling">的来电未接</string>
     <string name="unsupport">您的手机不支持此设置</string>
     <string name="isIgnored">已将省电优化设置为无限制(不优化)！</string>
     <string name="isIgnored2">本界面无法直接操作系统的省电优化设置</string>
@@ -231,7 +230,6 @@
     <string name="sender_cannot_receive">本手机是发送端，不可接收文件，请先停止服务端！</string>
     <string name="no_wifi_network">未接入Wifi网络，不可使用 HttpServer 功能!</string>
     <string name="invalid_server_ip">请输入服务端IP</string>
-    <string name="download_success">下载成功</string>
     <string name="on_wireless_network">当前处于无线网络</string>
     <string name="on_mobile_network">当前处于移动网络</string>
     <string name="no_network">当前没有网络</string>
@@ -382,10 +380,10 @@
     <string name="tips_compatible_solution">兼容方案</string>
     <string name="tips_wait_3_seconds">点击启动后请等待3秒</string>
     <string name="tips_clone_done">一键克隆操作完成！\n请检查·通用设置·各项开关是否已开启！</string>
-    <string name="tips_download_done">下载完成，正准备还原数据...</string>
+    <string name="tips_download_done">下载完成，正准备还原数据…</string>
     <string name="tips_download_failed">下载失败：</string>
     <string name="tips_downloading">正在下载</string>
-    <string name="tips_please_wait">请稍后...</string>
+    <string name="tips_please_wait">请稍后…</string>
     <string name="tips_clone_failed">一键克隆失败：</string>
     <string name="tips_versions_inconsistent">发送端与接收端的APP版本不一致，无法一键克隆！</string>
     <string name="tips_get_info_failed">从发送端获取一键克隆信息失败</string>

app/src/main/res/xml/network_security_config.xml

@@ -1,6 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
-<network-security-config>
-    <base-config cleartextTrafficPermitted="true" />
+<network-security-config xmlns:tools="http://schemas.android.com/tools">
+    <base-config
+        cleartextTrafficPermitted="true"
+        tools:ignore="InsecureBaseConfiguration" />
     <debug-overrides>
         <trust-anchors>
             <!-- Trust user added CAs while debuggable only -->