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)
阿新 • • 發佈：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**
```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
```java
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**
```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**
```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，可以看到我們添加了 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**
```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**
```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**
```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**
```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();
}