Android MTK平臺 客製化系統來電介面(遮蔽 InCallUI 提供介面給客戶自行展示來電去電頁面)

cczheng發表於2020-08-03

OS: Android 8.1

需求分析

1、禁止系統來電鈴聲,提供介面給客戶自己播放鈴聲

2、禁止系統拉起來去電頁面(InCallActivity),訊息通知客戶拉起自己的來去電頁面

3、禁止來電訊息 Notification 顯示(包括未接來電),點選跳轉至 InCallActivity(未接來電訊息可通知客戶或者將 PendingIntent 改成客戶的)

上程式碼

1、系統來電鈴聲播放在 Telecomm 應用中,我們發現一般都是先聽到鈴聲才看到 UI 被拉起,那是因為鈴聲在 Telecomm 中,UI 需要通過 InCallService 通知到 Dialer 中。

vendor\mediatek\proprietary\packages\services\Telecomm\src\com\android\server\telecom\Ringer.java

	public boolean startRinging(Call foregroundCall, boolean isHfpDeviceAttached) {

		//cczhegn add return for customer self control ringing, system ignore
         if (true) {
            return ;
         }
		
        if (foregroundCall == null) {
            /// M: ALPS03787956 Fix wtf log warning. @{
            /// Hand up the call immediately when ringing. Then the foreground call will
            /// change to null, but call audio is start ringing at the same time.
            /// Log.wtf will occur in this case.
            /// Solution:
            /// Call audio can handle this case, so change Log.wtf to Log.i here.
            Log.i(this, "startRinging called with null foreground call.");
            /// @}
            return false;
        }

        AudioManager audioManager =
                (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
        boolean isVolumeOverZero = audioManager.getStreamVolume(AudioManager.STREAM_RING) > 0;
        boolean shouldRingForContact = shouldRingForContact(foregroundCall.getContactUri());
        boolean isRingtonePresent = !(mRingtoneFactory.getRingtone(foregroundCall) == null);
        boolean isSelfManaged = foregroundCall.isSelfManaged();

			....
}

public void stopRinging() {
        //cczheng add return for customer self control ringing, system ignore
         if (true) {
            return ;
         }

        if (mRingingCall != null) {
            Log.addEvent(mRingingCall, LogUtils.Events.STOP_RINGER);
            mRingingCall = null;
        }

        if (mIsVibrating) {
            Log.addEvent(mVibratingCall, LogUtils.Events.STOP_VIBRATOR);
            mVibrator.cancel();
            mIsVibrating = false;
            mVibratingCall = null;
        }
    }

只需要將 startRinging() 和 stopRinging() 直接 return 即可,系統就不會響鈴了。

2、提供播放鈴聲工具類 RingUtil 給客戶

public class RingUtil {
    private static final String TAG = "RingUtil";
    private static Ringtone ringtone;
    private static Ringtone getRing(Context context){
        if (null == ringtone){
            Uri defaultRingtoneUri = RingtoneManager.getActualDefaultRingtoneUri(context, RingtoneManager.TYPE_RINGTONE);
            ringtone = RingtoneManager.getRingtone(context, defaultRingtoneUri);
        }
        return ringtone;
    }
    public static void startRing(Context context){
        getRing(context);
        if (!ringtone.isPlaying()){
            ringtone.play();
        }
    }
    public static void stopRing(Context context){
        getRing(context);
        if (ringtone.isPlaying()){
            ringtone.stop();
        }
    }
}

3、禁止系統拉起來去電頁面

剛剛上面說到 Telecom 和 Dialer 主要通過 InCallService 通訊,重要的兩個方法 onCallAdded、onCallRemoved,從字面意思很容易理解,當 call 加入和移除時回撥。

InCallPresenter 可以說是 Call 的管理中心,來電去電都經過這處理,所以我們在此處修改比較容易

vendor\mediatek\proprietary\packages\apps\Dialer\java\com\android\incallui\InCallPresenter.java

//來電拉起 InCallActivity 的地方
public void showInCall(boolean showDialpad, boolean newOutgoingCall) {
    LogUtil.d("InCallPresenter.showInCall", "Showing InCallActivity");
    //cczheng  annotaion don't show sysytem InCallActivity
    //mContext.startActivity(
        //InCallActivity.getIntent(
            //mContext, showDialpad, newOutgoingCall, false /* forFullScreen */));
  }

//去電拉起 InCallActivity 的地方
public void maybeStartRevealAnimation(Intent intent) {
    LogUtil.e("InCallPresenter.OutgoingCall", "maybeStartRevealAnimation");
    if (intent == null || mInCallActivity != null) {
      return;
    }
    final Bundle extras = intent.getBundleExtra(TelecomManager.EXTRA_OUTGOING_CALL_EXTRAS);
    if (extras == null) {
      // Incoming call, just show the in-call UI directly.
      return;
    }

    if (extras.containsKey(android.telecom.Call.AVAILABLE_PHONE_ACCOUNTS)) {
      // Account selection dialog will show up so don't show the animation.
      return;
    }

    final PhoneAccountHandle accountHandle =
        intent.getParcelableExtra(TelecomManager.EXTRA_PHONE_ACCOUNT_HANDLE);
    final Point touchPoint = extras.getParcelable(TouchPointManager.TOUCH_POINT);

    InCallPresenter.getInstance().setBoundAndWaitingForOutgoingCall(true, accountHandle);

    //cczheng  annotaion don't show sysytem InCallActivity
    LogUtil.e("InCallPresenter.OutgoingCall", "OutgoingCall is preper start inCallActivity.");
    //final Intent activityIntent =
        //InCallActivity.getIntent(mContext, false, true, false /* forFullScreen */);
    //activityIntent.putExtra(TouchPointManager.TOUCH_POINT, touchPoint);
    //mContext.startActivity(activityIntent);
  }

4、訊息通知客戶來去電訊息

為了簡單我們採用廣播的方式,由於 8.1 中靜態註冊廣播有限制,為了突破限制,我們需要在傳送廣播時加上 intent.addFlags(0x01000000);

vendor\mediatek\proprietary\packages\apps\Dialer\java\com\android\incallui\InCallPresenter.java

 String number;
  public void onCallAdded(final android.telecom.Call call) {
    LatencyReport latencyReport = new LatencyReport(call);
    if (shouldAttemptBlocking(call)) {
      maybeBlockCall(call, latencyReport);
    } else {
      if (call.getDetails().hasProperty(CallCompat.Details.PROPERTY_IS_EXTERNAL_CALL)) {
        mExternalCallList.onCallAdded(call);
      } else {
        latencyReport.onCallBlockingDone();
        mCallList.onCallAdded(mContext, call, latencyReport);
      }
    }

    // Since a call has been added we are no longer waiting for Telecom to send us a call.
    setBoundAndWaitingForOutgoingCall(false, null);
    call.registerCallback(mCallCallback);

    //cczheng add when incall or outcall added notify user can start there incallui
    number = TelecomCallUtil.getNumber(call);
    if (isOutGoingCall) {
      LogUtil.e("InCallPresenter.OutgoingCall", "OutgoingCall number=="+number);
      Intent intent = new Intent("com.android.outgoingcall.wireless");
      intent.putExtra("outgoingNumber", number);
      intent.addFlags(0x01000000);
      mContext.sendBroadcast(intent);
    }else{
      LogUtil.i("InCallPresenter.IncomingCall", "IncomingCall number=="+number);
      Intent intentcc = new Intent("com.android.incomingcall.wireless");
      intentcc.putExtra("incomingNumber", number);
      intentcc.addFlags(0x01000000);
      mContext.sendBroadcast(intentcc);
    }
  }

在 onCallAdded() 方法中,可以看到我們新增了 isOutGoingCall 變數判讀是來電還是去電,分別對應不用的 action,通過 TelecomCallUtil 獲取當前 call 的 number 順帶傳送

5、來去電型別 isOutGoingCall 區分

回到剛剛的遮蔽去電拉起頁面的方法 maybeStartRevealAnimation() 中,其中有獲取 EXTRA_OUTGOING_CALL_EXTRAS 引數,經過驗證確實來電不帶此引數,去電帶引數

vendor\mediatek\proprietary\packages\apps\Dialer\java\com\android\incallui\InCallPresenter.java

//cczheng add for distinguish incall or outgogingcall
  private boolean isOutGoingCall;

  public void maybeStartRevealAnimation(Intent intent) {
    LogUtil.e("InCallPresenter.OutgoingCall", "maybeStartRevealAnimation");
    if (intent == null || mInCallActivity != null) {
      return;
    }
    final Bundle extras = intent.getBundleExtra(TelecomManager.EXTRA_OUTGOING_CALL_EXTRAS);
    if (extras == null) {
      // Incoming call, just show the in-call UI directly.
      isOutGoingCall = false;//cczheng add for incomingcall
      return;
    }

    if (extras.containsKey(android.telecom.Call.AVAILABLE_PHONE_ACCOUNTS)) {
      // Account selection dialog will show up so don't show the animation.
      return;
    }

    final PhoneAccountHandle accountHandle =
        intent.getParcelableExtra(TelecomManager.EXTRA_PHONE_ACCOUNT_HANDLE);
    final Point touchPoint = extras.getParcelable(TouchPointManager.TOUCH_POINT);

    InCallPresenter.getInstance().setBoundAndWaitingForOutgoingCall(true, accountHandle);

    LogUtil.e("InCallPresenter.OutgoingCall", "OutgoingCall is preper start inCallActivity.");
    isOutGoingCall = true;//cczhegn add for outgongcall
    //final Intent activityIntent =
        //InCallActivity.getIntent(mContext, false, true, false /* forFullScreen */);
    //activityIntent.putExtra(TouchPointManager.TOUCH_POINT, touchPoint);
    //mContext.startActivity(activityIntent);
  }

6、禁止來電訊息 Notification 顯示

vendor\mediatek\proprietary\packages\apps\Dialer\java\com\android\incallui\StatusBarNotifier.java

@RequiresPermission(Manifest.permission.READ_PHONE_STATE)
  public void updateNotification(CallList callList) {
    ///cczheng annotaion for don't show incallnotification when pstnoverlayactivity in font
    //updateInCallNotification(callList);
  }

直接註釋 updateInCallNotification()

7、未接來電訊息處理

回到 Telecomm 中,MissedCallNotifierImpl 負責管理未接來電訊息,如果將 android 自己的 Notification 遮蔽,通知客戶自己去顯示,略微麻煩,使用者需要自己建資料庫儲存通知已讀未讀狀態,
因為重啟需要查詢判斷是否需要再次顯示。這樣你可以在 showMissedCallNotification() 中直接傳送通知後 return。我們此處採用第二種方式,修改系統 Notification 的 PendingIntent 為客戶

vendor\mediatek\proprietary\packages\services\Telecomm\src\com\android\server\telecom\ui\MissedCallNotifierImpl.java

private PendingIntent createCallLogPendingIntent(UserHandle userHandle) {
		//cczheng add for jump to customer app
		try {
            Intent intentc = mContext.getPackageManager().getLaunchIntentForPackage("your customer app packageName");
	        return PendingIntent.getActivity(mContext, 11, intentc, 0);
        }catch (Exception e){
             e.printStackTrace();
			Intent intent = new Intent(Intent.ACTION_VIEW, null);
	        intent.setType(Calls.CONTENT_TYPE);
	
	        TaskStackBuilder taskStackBuilder = TaskStackBuilder.create(mContext);
	        taskStackBuilder.addNextIntent(intent);
	
	        return taskStackBuilder.getPendingIntent(0, 0, null, userHandle);
        }
    }

8、按下音量鍵和電源鍵靜音

系統播放來電鈴聲時,此時按下音量鍵或電源鍵,預設都會停止播放鈴聲。但這是系統播放鈴聲的情況下,現在我們已經開發給

客戶自己去播放鈴聲了,所以原來的邏輯就會失效,只能客戶自己去停止鈴聲,但是來電頁面響鈴中,客戶是監聽不到音量鍵或

電源鍵事件的,只能在系統通知了。

vendor\mediatek\proprietary\packages\services\Telecomm\src\com\android\server\telecom\TelecomServiceImpl.java

@Override
      public void silenceRinger(String callingPackage) {
          try {
              Log.startSession("TSI.sR");
              synchronized (mLock) {
                  enforcePermissionOrPrivilegedDialer(MODIFY_PHONE_STATE, callingPackage);

                  long token = Binder.clearCallingIdentity();
                  try {
                      Log.i(this, "Silence Ringer requested by %s", callingPackage);
                      //cczheng add for notify custmer press valume/power need silence ringer
                      mContext.sendBroadcast(new Intent("com.android.key.silence.ringer")); 
                      mCallsManager.getCallAudioManager().silenceRingers();
                      mCallsManager.getInCallController().silenceRinger();
                  } finally {
                      Binder.restoreCallingIdentity(token);
                  }
              }
          } finally {
              Log.endSession();
          }
      }

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