androidのMMS短信发送过程（一）
16lz
2022-04-09
androidのMMS短信发送过程（一）
1. 在短信编辑界面 ComposeMessageActivity.java 中按下发送按钮，就开始信息的发送。从ComposeMessageActivity.java的onclick（）开始，
首先看下流程图，然后对比看代码。
代码如下
public void onClick(View v) { /// M: Code analyze 028, Before sending message,check the recipients count /// and add sim card selection dialog if multi sim cards exist.@{ // confirmSendMessageIfNeeded(); if (v == mSendButtonSms || v == mSendButtonMms || v == mSendButtonIpMessage) { if (mSendButtonCanResponse) { mSendButtonCanResponse = false; if (isPreparedForSending()) { /// M: add for ip message, unread divider mShowUnreadDivider = false; /// M: Since sending message here, why not disable button 'Send'?? updateSendButtonState(false); checkRecipientsCount(); mUiHandler.sendEmptyMessageDelayed(MSG_RESUME_SEND_BUTTON, RESUME_BUTTON_INTERVAL); } else { mSendButtonCanResponse = true; unpreparedForSendingAlert(); } } 以前版本中 - if((v==mSendButtonSms||v==mSendButtonMms)&&isPreparedForSending()){
- confirmSendMessageIfNeeded();
- }
private boolean isPreparedForSending() { if (isRecipientsEditorVisible()) { String recipientText = mRecipientsEditor.getText() == null ? "" : mRecipientsEditor.getText().toString(); /// M: add for ip message return mSimCount > 0 && !TextUtils.isEmpty(recipientText) && mIsSmsEnabled && (mWorkingMessage.hasAttachment() || mWorkingMessage.hasText() || mWorkingMessage.hasSubject() || mIpMessageDraft != null); } else { return mSimCount > 0 && mIsSmsEnabled && (mWorkingMessage.hasAttachment() || mWorkingMessage.hasText() || mWorkingMessage.hasSubject() || mIpMessageDraft != null); } } 这里isRecipientsEditorVisible()用于判断RecipientsEditor mRecipientsEditor; 这个添加联系人输入框是否可见，
isPreparedForSending()这个方法决定是否可发送，方法里需要判断 sim卡数目大于0，发送联系人输入框不为空，当前SIM卡可用，
以及判断当前编辑内容是否有附件，主题，内容，草稿
--继续回到onclick（）方法中，看到 updateSendButtonState（）这个方法，用来更新发送按钮状态的。代码如下：
private void updateSendButtonState(final boolean enabled) { if (!mWorkingMessage.hasSlideshow()) { View sendButton = showSmsOrMmsSendButton(mWorkingMessage.requiresMms()); /// M: for OP09 if (MmsConfig.isDualSendButtonEnable()) { // mMmsComposePlugin.setCTSendButtonType(); if (mSimCount < 1) { sendButton.setEnabled(enabled); sendButton.setFocusable(enabled); } mMmsComposePlugin.updateDualSendButtonStatue(enabled, mWorkingMessage.requiresMms()); return; } sendButton.setEnabled(enabled); sendButton.setFocusable(enabled); } else { mAttachmentEditor.setCanSend(enabled); } } mWorkingMessage.hasSlideshow() 判断是否含有幻灯片， 这里用来设置发送按钮是否可以点击的状态。
---继续onclick（）中，checkRecipientsCount();检查接受信息的号码数目。
mUiHandler.sendEmptyMessageDelayed(MSG_RESUME_SEND_BUTTON, RESUME_BUTTON_INTERVAL); 利用handler发送一个消息。
可以看到关于mUiHandler 的代码：
private Handler mUiHandler = new Handler() { @Override public void handleMessage(Message msg) { switch (msg.what) { 。。。。 case MSG_RESUME_SEND_BUTTON: mSendButtonCanResponse = true; break; 。。。。。 可以看到 handler中仅仅处理一个值：mSendButtonCanResponse = true;
然而关键发送流程，还要看checkRecipientsCount（）方法中，代码如下：
private void checkRecipientsCount() { 。。。。。 if (mWorkingMessage.requiresMms() && (recipientCount() > mmsLimitCount || isRecipientsCcTooMany())) { ............. } else { ..... if (isRecipientsEditorVisible() && "".equals(mRecipientsEditor.getText().toString().replaceAll(";", "").replaceAll(",", "").trim())) { 。。。。 } else if (!isRecipientsEditorVisible() && "".equals(mConversation.getRecipients().serialize().replaceAll(";", "").replaceAll(",", ""))) { 。。。。 } else { System.out.println("blueberry_EncapsulatedFeatureOption.MTK_GEMINI_SUPPORT="+EncapsulatedFeatureOption.MTK_GEMINI_SUPPORT); System.out.println("blueberry_MmsConfig.getFolderModeEnabled()="+MmsConfig.getFolderModeEnabled()); /// M: cmcc feature, reply message with the card directly if only one card related in conversation if (EncapsulatedFeatureOption.MTK_GEMINI_SUPPORT && MmsConfig.getFolderModeEnabled()) { /// M: modify in op09; The Folder mode and dual send button can not coexist in this code block; if (!MmsConfig.isDualSendButtonEnable() || MmsConfig.isSupportAutoSelectSimId()) { send_sim_id = getAutoSelectSimId(); MmsLog.d(TAG, "send_sim_id="+send_sim_id); // -1 } } simSelection();// 这里是对sim 选择做的判断 } } } 选择好SIM卡后，还要看 simSelection()中 ， 这里省略了方法内容 ，继续看关键的方法confirmSendMessageIfNeeded（），代码如下：
private void confirmSendMessageIfNeeded() { if (MmsConfig.isChangeLengthRequiredMmsToSmsEnable()) { <span style="font-family: Arial, Helvetica, sans-serif;">/// M: for length required MMS for op09@{</span> if (mMmsComposePlugin.needConfirmMmsToSms()) { confirmForChangeMmsToSms(); //<span style="color: rgb(85, 85, 85); line-height: 18px;">切换短彩信模式</span> return; } else { mMmsComposePlugin.setConfirmMmsToSms(true); } } if (!isRecipientsEditorVisible()) { //<span style="color: rgb(85, 85, 85); line-height: 18px;">// 接受方编辑框是否可见</span> checkConditionsAndSendMessage(true); <span style="font-family: Arial, Helvetica, sans-serif;">/// M: Code analyze 030, Check condition before sending message.@{</span> return; } boolean isMms = mWorkingMessage.requiresMms(); //判断当前是否发送是彩信 if (mRecipientsEditor.hasInvalidRecipient(isMms)) { <span style="color: rgb(85, 85, 85); line-height: 18px;">//检查是否有不合法接受方</span> /// M: Code analyze 054, Even if there are some invalid recipients , we also try to /// send messag.Now, We do not disgingush there are some or all invalid recipients. @{ updateSendButtonState(); //更新发送按钮状态 String title = getResourcesString(R.string.has_invalid_recipient, mRecipientsEditor.formatInvalidNumbers(isMms)); new AlertDialog.Builder(this) .setCancelable(false) .setIconAttribute(android.R.attr.alertDialogIcon) .setTitle(title) .setMessage(R.string.invalid_recipient_message) .setPositiveButton(R.string.try_to_send, new SendIgnoreInvalidRecipientListener()) .setNegativeButton(R.string.no, new CancelSendingListenerForInvalidRecipient()) .setOnKeyListener(new DialogInterface.OnKeyListener() { @Override public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_BACK) { dialog.dismiss(); } return false; } }) .show(); /** M: support mms cc feature. CT requested. here use simple logic. * check to and cc only show one dialog, if users ignore To invalid address, * don't show cc invalid too. */ } else if (isRecipientsCcEditorVisible() && mRecipientsCcEditor.hasInvalidRecipient(true)) { //updateSendButtonState(); String title = getResourcesString(R.string.has_invalid_cc, mRecipientsCcEditor .formatInvalidNumbers(true)); new AlertDialog.Builder(this) .setCancelable(false) .setIconAttribute(android.R.attr.alertDialogIcon) .setTitle(title).setMessage(R.string.invalid_recipient_message) .setPositiveButton( R.string.try_to_send, new SendIgnoreInvalidRecipientListener()) .setNegativeButton(R.string.no, new OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { dialog.dismiss(); updateSendButtonState(true); } }).show(); } else { /// M: Code analyze 030, Check condition before sending message.(All recipients are valid.)@{ checkConditionsAndSendMessage(true); } } 以下讲讲方法中所走的流程，省略方法内容。。。
然后 在checkConditionsAndSendMessage（）方法中，进行发送前对环境监测，将simID转为卡槽id等。这里省略了方法checkConditionsAndSendMessage的内容
继续关注checkIpMessageBeforeSendMessage（）这个方法中， sendMessage(bCheckEcmMode);这个方法开始进入发送关键地方。
private void sendMessage(boolean bCheckEcmMode) { /// M:the method is extend to support gemini @{ mWorkingMessage.send(mDebugRecipients, mSelectedSimId); MmsLog.d(TAG, "Compose.sendMessage(): after sendMessage. mConversation.ThreadId=" + mConversation.getThreadId() + ", MessageCount=" + mConversation.getMessageCount());} 可以看到这里，调用了 mWorkingMessage.send(mDebugRecipients, mSelectedSimId); 下文详见androidのMMS短信发送过程（二）
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