优化：保活措施-播放无声音乐让后台一直运行（可能比较耗电，按需启用）

app/src/main/AndroidManifest.xml

@@ -156,6 +156,11 @@
         <service
             android:name=".service.BatteryService"
             android:enabled="true" />
+        <service
+            android:name=".service.MusicService"
+            android:enabled="true"
+            android:exported="true"
+            tools:ignore="ExportedService" />
         <service
             android:name=".service.NotifyService"
             android:enabled="true"

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

@@ -39,6 +39,7 @@ import com.idormy.sms.forwarder.sender.SenderUtil;
 import com.idormy.sms.forwarder.sender.SmsHubApiTask;
 import com.idormy.sms.forwarder.service.BatteryService;
 import com.idormy.sms.forwarder.service.FrontService;
+import com.idormy.sms.forwarder.service.MusicService;
 import com.idormy.sms.forwarder.utils.CommonUtil;
 import com.idormy.sms.forwarder.utils.HttpUtil;
 import com.idormy.sms.forwarder.utils.KeepAliveUtils;
@@ -106,6 +107,16 @@ public class MainActivity extends AppCompatActivity implements RefreshListView.I
             Log.e(TAG, "BatteryService:", e);
         }
 
+        //后台播放无声音乐
+        if (SettingUtil.getPlaySilenceMusic()) {
+            try {
+                Intent musicServiceIntent = new Intent(this, MusicService.class);
+                musicServiceIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                startService(musicServiceIntent);
+            } catch (Exception e) {
+                Log.e(TAG, "MusicService:", e);
+            }
+        }
 
         HttpUtil.init(this);
         //启用HttpServer

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

@@ -17,6 +17,7 @@ import com.idormy.sms.forwarder.receiver.SimStateReceiver;
 import com.idormy.sms.forwarder.sender.SendHistory;
 import com.idormy.sms.forwarder.service.BatteryService;
 import com.idormy.sms.forwarder.service.FrontService;
+import com.idormy.sms.forwarder.service.MusicService;
 import com.idormy.sms.forwarder.utils.Define;
 import com.idormy.sms.forwarder.utils.PermissionInterceptor;
 import com.idormy.sms.forwarder.utils.PhoneUtils;
@@ -108,6 +109,11 @@ public class MyApplication extends Application {
             Intent batteryServiceIntent = new Intent(this, BatteryService.class);
             startService(batteryServiceIntent);
 
+            //后台播放无声音乐
+            if (SettingUtil.getPlaySilenceMusic()) {
+                startService(new Intent(context, MusicService.class));
+            }
+
             //SIM卡插拔状态广播监听
             IntentFilter simStateFilter = new IntentFilter(SimStateReceiver.ACTION_SIM_STATE_CHANGED);
             registerReceiver(new SimStateReceiver(), simStateFilter);

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

@@ -24,6 +24,7 @@ import android.widget.EditText;
 import android.widget.LinearLayout;
 import android.widget.ScrollView;
 import android.widget.Switch;
+import android.widget.TextView;
 
 import androidx.annotation.RequiresApi;
 import androidx.appcompat.app.AlertDialog;
@@ -37,6 +38,7 @@ import com.idormy.sms.forwarder.receiver.RebootBroadcastReceiver;
 import com.idormy.sms.forwarder.sender.HttpServer;
 import com.idormy.sms.forwarder.sender.SenderUtil;
 import com.idormy.sms.forwarder.sender.SmsHubApiTask;
+import com.idormy.sms.forwarder.service.MusicService;
 import com.idormy.sms.forwarder.utils.CommonUtil;
 import com.idormy.sms.forwarder.utils.DbHelper;
 import com.idormy.sms.forwarder.utils.Define;
@@ -100,11 +102,13 @@ public class SettingActivity extends AppCompatActivity {
         editBatteryLevelAlarm(findViewById(R.id.et_battery_level_alarm_min), findViewById(R.id.et_battery_level_alarm_max), findViewById(R.id.cb_battery_level_alarm_once));
 
         //开机启动
-        checkWithReboot(findViewById(R.id.switch_with_reboot));
+        checkWithReboot(findViewById(R.id.switch_with_reboot), findViewById(R.id.tv_auto_startup));
         //电池优化设置
         batterySetting(findViewById(R.id.layout_battery_setting), findViewById(R.id.switch_battery_setting));
         //不在最近任务列表中显示
         switchExcludeFromRecents(findViewById(R.id.switch_exclude_from_recents));
+        //后台播放无声音乐
+        switchPlaySilenceMusic(findViewById(R.id.switch_play_silence_music));
         //接口请求失败重试时间间隔
         editRetryDelayTime(findViewById(R.id.et_retry_times), findViewById(R.id.et_delay_time));
 
@@ -426,7 +430,9 @@ public class SettingActivity extends AppCompatActivity {
     }
 
     //开机启动
-    private void checkWithReboot(@SuppressLint("UseSwitchCompatOrMaterialCode") Switch withrebootSwitch) {
+    private void checkWithReboot(@SuppressLint("UseSwitchCompatOrMaterialCode") Switch withrebootSwitch, TextView tvAutoStartup) {
+        tvAutoStartup.setText(getAutoStartTips());
+
         //获取组件
         final ComponentName cm = new ComponentName(this.getPackageName(), RebootBroadcastReceiver.class.getName());
 
@@ -665,6 +671,23 @@ public class SettingActivity extends AppCompatActivity {
         });
     }
 
+    //后台播放无声音乐
+    @SuppressLint("ObsoleteSdkInt,UseSwitchCompatOrMaterialCode")
+    private void switchPlaySilenceMusic(Switch switch_play_silence_music) {
+        switch_play_silence_music.setChecked(SettingUtil.getPlaySilenceMusic());
+
+        switch_play_silence_music.setOnCheckedChangeListener((buttonView, isChecked) -> {
+            SettingUtil.switchPlaySilenceMusic(isChecked);
+
+            if (isChecked) {
+                startService(new Intent(context, MusicService.class));
+            } else {
+                stopService(new Intent(context, MusicService.class));
+            }
+            Log.d(TAG, "onCheckedChanged:" + isChecked);
+        });
+    }
+
     //接口请求失败重试时间间隔
     private void editRetryDelayTime(final EditText et_retry_times, final EditText et_delay_time) {
         et_retry_times.setText(String.valueOf(SettingUtil.getRetryTimes()));
@@ -945,4 +968,48 @@ public class SettingActivity extends AppCompatActivity {
         return super.onMenuOpened(featureId, menu);
     }
 
+    /**
+     * 获取当前手机品牌
+     *
+     * @return 手机品牌
+     */
+    public static String getAutoStartTips() {
+        String brand = Build.BRAND.toLowerCase();
+        String tips;
+
+        switch (brand) {
+            case "huawei":
+                tips = "华为手机：应用启动管理 -> 关闭应用开关 -> 打开允许自启动";
+                break;
+            case "honor":
+                tips = "荣耀手机：应用启动管理 -> 关闭应用开关 -> 打开允许自启动";
+                break;
+            case "xiaomi":
+                tips = "小米手机：授权管理 -> 自启动管理 -> 允许应用自启动";
+                break;
+            case "oppo":
+                tips = "OPPO手机：权限隐私 -> 自启动管理 -> 允许应用自启动";
+                break;
+            case "vivo":
+                tips = "vivo手机：权限管理 -> 自启动 -> 允许应用自启动";
+                break;
+            case "meizu":
+                tips = "魅族手机：权限管理 -> 后台管理 -> 点击应用 -> 允许后台运行";
+                break;
+            case "samsung":
+                tips = "三星手机：自动运行应用程序 -> 打开应用开关 -> 电池管理 -> 未监视的应用程序 -> 添加应用";
+                break;
+            case "letv":
+                tips = "乐视手机：自启动管理 -> 允许应用自启动";
+                break;
+            case "smartisan":
+                tips = "锤子手机：权限管理 -> 自启动权限管理 -> 点击应用 -> 允许被系统启动";
+                break;
+            default:
+                tips = "未知手机品牌：需要自主查看设置操作";
+                break;
+        }
+
+        return tips;
+    }
 }

app/src/main/java/com/idormy/sms/forwarder/receiver/RebootBroadcastReceiver.java

@@ -8,7 +8,9 @@ import android.util.Log;
 
 import com.idormy.sms.forwarder.service.BatteryService;
 import com.idormy.sms.forwarder.service.FrontService;
+import com.idormy.sms.forwarder.service.MusicService;
 import com.idormy.sms.forwarder.utils.InitUtil;
+import com.idormy.sms.forwarder.utils.SettingUtil;
 
 public class RebootBroadcastReceiver extends BroadcastReceiver {
 
@@ -31,6 +33,11 @@ public class RebootBroadcastReceiver extends BroadcastReceiver {
             //电池状态监听
             Intent batteryServiceIntent = new Intent(context, BatteryService.class);
             context.startService(batteryServiceIntent);
+
+            //后台播放无声音乐
+            if (SettingUtil.getPlaySilenceMusic()) {
+                context.startService(new Intent(context, MusicService.class));
+            }
         }
 
     }

app/src/main/java/com/idormy/sms/forwarder/service/MusicService.java

@@ -0,0 +1,95 @@
+package com.idormy.sms.forwarder.service;
+
+import android.app.Service;
+import android.content.Intent;
+import android.media.AudioManager;
+import android.media.MediaPlayer;
+import android.os.IBinder;
+import android.util.Log;
+
+import com.idormy.sms.forwarder.R;
+
+public class MusicService extends Service {
+
+    private final String TAG = "MusicService";
+
+    private MediaPlayer mMediaPlayer;
+
+    private AudioManager mAudioManager;
+
+    private final AudioManager.OnAudioFocusChangeListener mAudioFocusChange = new
+            AudioManager.OnAudioFocusChangeListener() {
+                @Override
+                public void onAudioFocusChange(int focusChange) {
+                    switch (focusChange) {
+                        case AudioManager.AUDIOFOCUS_GAIN:
+                            Log.e(TAG, "AUDIOFOCUS_GAIN");
+                            try {
+                                startPlayMusic();
+                            } catch (Exception e) {
+                                e.printStackTrace();
+                            }
+                            break;
+                        case AudioManager.AUDIOFOCUS_LOSS:
+                            Log.e(TAG, "AUDIOFOCUS_LOSS");
+                            mAudioManager.abandonAudioFocus(mAudioFocusChange);
+                            break;
+                        case AudioManager.AUDIOFOCUS_LOSS_TRANSIENT:
+                            Log.e(TAG, "AUDIOFOCUS_LOSS_TRANSIENT");
+                            break;
+                        case AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK:
+                            Log.e(TAG, "AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK");
+                            break;
+                    }
+                }
+            };
+
+    public MusicService() {
+
+    }
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        // TODO: Return the communication channel to the service.
+        throw new UnsupportedOperationException("Not yet implemented");
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        //音标处理
+        mAudioManager = (AudioManager) getSystemService(AUDIO_SERVICE);
+        if (mAudioManager != null)
+            mAudioManager.requestAudioFocus(mAudioFocusChange, AudioManager.STREAM_MUSIC, AudioManager.AUDIOFOCUS_GAIN);
+
+        mMediaPlayer = MediaPlayer.create(getApplicationContext(), R.raw.silence);
+        mMediaPlayer.setLooping(true);
+
+        startPlayMusic();
+
+        return START_STICKY;
+    }
+
+
+    private void startPlayMusic() {
+        if (mMediaPlayer != null && !mMediaPlayer.isPlaying()) {
+            Log.e(TAG, "启动后台播放音乐");
+            mMediaPlayer.start();
+        }
+    }
+
+    private void stopPlayMusic() {
+        if (mMediaPlayer != null) {
+            Log.e(TAG, "关闭后台播放音乐");
+            mMediaPlayer.stop();
+        }
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        stopPlayMusic();
+        Log.e(TAG, TAG + "---->onDestroy,停止服务");
+    }
+
+}
+

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

@@ -11,6 +11,7 @@ public class Define {
     public static final String SP_MSG_KEY_STRING_ENABLE_APP_NOTIFY = "tsms_msg_key_switch_enable_app_notify";
     public static final String SP_MSG_KEY_STRING_CANCEL_APP_NOTIFY = "tsms_msg_key_switch_cancel_app_notify";
     public static final String SP_MSG_KEY_STRING_ENABLE_EXCLUDE_FROM_RECENTS = "tsms_msg_key_switch_enable_exclude_from_recents";
+    public static final String SP_MSG_KEY_STRING_ENABLE_PLAY_SILENCE_MUSIC = "tsms_msg_key_switch_enable_play_silence_music";
     public static final String SP_MSG_KEY_STRING_ADD_EXTRA_DEVICE_MARK = "tsms_msg_key_string_add_extra_device_mark";
     public static final String SP_MSG_KEY_STRING_ADD_EXTRA_SIM1 = "tsms_msg_key_string_add_extra_sim1";
     public static final String SP_MSG_KEY_STRING_ADD_EXTRA_SIM2 = "tsms_msg_key_string_add_extra_sim2";

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

@@ -93,6 +93,14 @@ public class SettingUtil {
         return sp_setting.getBoolean(Define.SP_MSG_KEY_STRING_ENABLE_EXCLUDE_FROM_RECENTS, false);
     }
 
+    public static void switchPlaySilenceMusic(Boolean enable) {
+        sp_setting.edit().putBoolean(Define.SP_MSG_KEY_STRING_ENABLE_PLAY_SILENCE_MUSIC, enable).apply();
+    }
+
+    public static boolean getPlaySilenceMusic() {
+        return sp_setting.getBoolean(Define.SP_MSG_KEY_STRING_ENABLE_PLAY_SILENCE_MUSIC, false);
+    }
+
     public static void switchSmsTemplate(Boolean switchSmsTemplate) {
         sp_setting.edit().putBoolean(Define.SP_MSG_KEY_SWITCH_SMS_TEMPLATE, switchSmsTemplate).apply();
     }

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

@@ -544,12 +544,26 @@
                 android:orientation="horizontal"
                 android:padding="15dp">
 
-                <TextView
+                <LinearLayout
                     android:layout_width="0dp"
                     android:layout_height="wrap_content"
                     android:layout_weight="4"
-                    android:text="@string/auto_startup"
+                    android:orientation="vertical">
-                    android:textStyle="bold" />
+
+                    <TextView
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:text="@string/auto_startup"
+                        android:textStyle="bold" />
+
+                    <TextView
+                        android:id="@+id/tv_auto_startup"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:text="@string/auto_startup"
+                        android:textSize="9sp"
+                        tools:ignore="SmallSp" />
+                </LinearLayout>
 
                 <Switch
                     android:id="@+id/switch_with_reboot"
@@ -645,6 +659,47 @@
 
             </LinearLayout>
 
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="2dp"
+                android:background="@color/setting_bar_color"
+                android:gravity="center_vertical"
+                android:orientation="horizontal"
+                android:padding="15dp">
+
+                <LinearLayout
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="4"
+                    android:orientation="vertical">
+
+                    <TextView
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:text="@string/play_silence_music"
+                        android:textStyle="bold"
+                        tools:ignore="RelativeOverlap" />
+
+                    <TextView
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:text="@string/play_silence_music_tips"
+                        android:textSize="9sp"
+                        tools:ignore="SmallSp" />
+                </LinearLayout>
+
+                <Switch
+                    android:id="@+id/switch_play_silence_music"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:gravity="end"
+                    android:textSize="16sp"
+                    tools:ignore="UseSwitchCompatOrMaterialXml" />
+
+            </LinearLayout>
+
             <LinearLayout
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"

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

@@ -434,4 +434,6 @@
     <string name="toast_denied_never">被永久拒绝授权，请前往系统设置手动授予权限！</string>
     <string name="toast_denied">获取必需的权限失败，APP功能可能受限！</string>
     <string name="tips_first_time">\n&#160;&#160;&#160;&#160;首次使用请按照1234步骤顺序设置，数字点亮表示该步骤已设置(4点亮表示有成功日志)！\n\n&#160;&#160;&#160;&#160;根据以往用户反馈，90%的新用户最终排查结果都是手机权限设置问题，5%的用户是APP保活问题，其他问题排查参考Wiki中的常见问题（APP右上角使用帮助入口）\n\n&#160;&#160;&#160;&#160;强烈建议：手动排查一下系统设置：自启动、电源策略、APP的权限，把所有权限打开（始终允许，不要“使用中允许”，MIUI系统就全部变绿），特别是一些国产定制系统加入隐私保护、验证码保护等（例如：MIUI 系统的 空白通行证）\n\n&#160;&#160;&#160;&#160;请选择是否立即“前往系统设置”检查，或“稍后自行处理”？</string>
+    <string name="play_silence_music">Play silent music in the background</string>
+    <string name="play_silence_music_tips">Play silent music to keep running in the background, which may consume more power, enable it on demand</string>
 </resources>

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

@@ -327,7 +327,7 @@
     <string name="battery_monitor">电池监控</string>
     <string name="battery_monitor_tips">【注意】需要手动创建APP转发规则，包名：88888888</string>
     <string name="keep_alive">保活措施</string>
-    <string name="keep_alive_tips">建议开启每一项授权或设置，不要禁用通知栏，避免APP被杀</string>
+    <string name="keep_alive_tips">建议开启前三项授权或设置，不要禁用通知栏，避免APP被杀</string>
     <string name="custom_settings">个性设置</string>
     <string name="custom_settings_tips">如果自动获取失败，请手动填写备注 或 清空后再次自动获取</string>
     <string name="times">次</string>
@@ -433,4 +433,6 @@
     <string name="toast_denied_never">被永久拒绝授权，请前往系统设置手动授予权限！</string>
     <string name="toast_denied">获取必需的权限失败，APP功能可能受限！</string>
     <string name="tips_first_time">\n&#160;&#160;&#160;&#160;首次使用请按照1234步骤顺序设置，数字点亮表示该步骤已设置(4点亮表示有成功日志)！\n\n&#160;&#160;&#160;&#160;根据以往用户反馈，90%的新用户最终排查结果都是手机权限设置问题，5%的用户是APP保活问题，其他问题排查参考Wiki中的常见问题（APP右上角使用帮助入口）\n\n&#160;&#160;&#160;&#160;强烈建议：手动排查一下系统设置：自启动、电源策略、APP的权限，把所有权限打开（始终允许，不要“使用中允许”，MIUI系统就全部变绿），特别是一些国产定制系统加入隐私保护、验证码保护等（例如：MIUI 系统的 空白通行证）\n\n&#160;&#160;&#160;&#160;请选择是否立即“前往系统设置”检查，或“稍后自行处理”？</string>
+    <string name="play_silence_music">后台播放无声音乐</string>
+    <string name="play_silence_music_tips">播放无声音乐让后台一直运行，可能比较耗电，按需启用</string>
 </resources>