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我覺得寫文章就得寫得有用一些的,必須要有自己的思想,關(guān)于來電去電監(jiān)聽將按照下面三個(gè)問題展開
1、監(jiān)聽來電去電有什么用?
2、怎么監(jiān)聽,來電去電監(jiān)聽方式一樣嗎?
3、實(shí)戰(zhàn),有什么需要特別注意地方?
監(jiān)聽來電去電能干什么
1、能夠?qū)ΡO(jiān)聽到的電話做個(gè)標(biāo)識(shí),告訴用戶這個(gè)電話是詐騙、推銷、廣告什么的
2、能夠針對那些特殊的電話進(jìn)行自動(dòng)掛斷,避免打擾到用戶
來電去電的監(jiān)聽方式(不一樣的方式)
1、來電監(jiān)聽(PhoneStateListener)
來電監(jiān)聽是使用PhoneStateListener類,使用方式是,將PhoneStateListener對象(一般是自己繼承PhoneStateListener類完成一些封裝)注冊到系統(tǒng)電話管理服務(wù)中去(TelephonyManager)
然后通過PhoneStateListener的回調(diào)方法onCallStateChanged(int state, String incomingNumber) 實(shí)現(xiàn)來電的監(jiān)聽 (詳細(xì)實(shí)現(xiàn)可以參考后面給出的拓展閱讀部分)
注冊監(jiān)聽
// phoneServiceName是服務(wù)名,一般是 "phone" --> Context.TELEPHONY_SERVICE TelephonyManager telephonyManager = (TelephonyManager) mContext.getSystemService(phoneServiceName); if(telephonyManager != null) { try { // 注冊來電監(jiān)聽 telephonyManager.listen(mTelephonyListener, PhoneStateListener.LISTEN_CALL_STATE); } catch(Exception e) { // 異常捕捉 } }
PhoneStateListener的onCallStateChanged方法監(jiān)聽來電狀態(tài)
@Override public void onCallStateChanged(int state, String incomingNumber) { switch (state) { case TelephonyManager.CALL_STATE_IDLE: // 電話掛斷 break; case TelephonyManager.CALL_STATE_OFFHOOK: // 來電響鈴 break; case TelephonyManager.CALL_STATE_RINGING: // 來電接通 break; default: break; } }
三種狀態(tài)源碼解釋
/** Device call state: No activity. */ public static final int CALL_STATE_IDLE = 0; // 電話掛斷 /** Device call state: Ringing. A new call arrived and is * ringing or waiting. In the latter case, another call is * already active. */ public static final int CALL_STATE_RINGING = 1; // 來電響鈴 /** Device call state: Off-hook. At least one call exists * that is dialing, active, or on hold, and no calls are ringing * or waiting. */ public static final int CALL_STATE_OFFHOOK = 2; // 來電接通
2、去電監(jiān)聽(通過廣播來實(shí)現(xiàn))
// OutgoingCallListener繼承一個(gè)BroadcastReceiver <receiver android:name="com.test.OutgoingCallListener" > <intent-filter> <action android:name="android.intent.action.PHONE_STATE"/> <action android:name="android.intent.action.NEW_OUTGOING_CALL" /> </intent-filter> </receiver>
實(shí)戰(zhàn),有什么需要特別注意地方
1、雙卡雙待的手機(jī)怎么獲取
對于雙卡手機(jī),每張卡都對應(yīng)一個(gè)Service和一個(gè)PhoneStateListener,需要給每個(gè)服務(wù)注冊自己的PhoneStateListener,服務(wù)的名稱還會(huì)有點(diǎn)變化,廠商可能會(huì)修改
public ArrayList<String> getMultSimCardInfo() { // 獲取雙卡的信息,這個(gè)也是經(jīng)驗(yàn)嘗試出來的,不知道其他廠商有什么坑 ArrayList<String> phoneServerList = new ArrayList<String>(); for(int i = 1; i < 3; i++) { try { String phoneServiceName; if (MiuiUtils.isMiuiV6()) { phoneServiceName = "phone." + String.valueOf(i-1); } else { phoneServiceName = "phone" + String.valueOf(i); } // 嘗試獲取服務(wù)看是否能獲取到 IBinder iBinder = ServiceManager.getService(phoneServiceName); if(iBinder == null) continue; ITelephony iTelephony = ITelephony.Stub.asInterface(iBinder); if(iTelephony == null) continue; phoneServerList.add(phoneServiceName); } catch(Exception e) { e.printStackTrace(); } } // 這個(gè)是默認(rèn)的 phoneServerList.add(Context.TELEPHONY_SERVICE); return phoneServerList; }
2、掛斷電話
掛斷電話使用系統(tǒng)服務(wù)提供的接口去掛斷,但是掛斷電話是個(gè)并不能保證成功的方法,所以會(huì)有多種方式掛斷同時(shí)使用,下面提供
public boolean endCall() { boolean callSuccess = false; ITelephony telephonyService = getTelephonyService(); try { if (telephonyService != null) { callSuccess = telephonyService.endCall(); } } catch (RemoteException e) { e.printStackTrace(); } catch (Exception e){ e.printStackTrace(); } if (callSuccess == false) { Executor eS = Executors.newSingleThreadExecutor(); eS.execute(new Runnable() { @Override public void run() { disconnectCall(); } }); callSuccess = true; } return callSuccess; } private boolean disconnectCall() { Runtime runtime = Runtime.getRuntime(); try { runtime.exec("service call phone 5 \n"); } catch (Exception exc) { exc.printStackTrace(); return false; } return true; } // 使用endCall掛斷不了,再使用killCall反射調(diào)用再掛一次 public static boolean killCall(Context context) { try { // Get the boring old TelephonyManager TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); // Get the getITelephony() method Class classTelephony = Class.forName(telephonyManager.getClass().getName()); Method methodGetITelephony = classTelephony.getDeclaredMethod("getITelephony"); // Ignore that the method is supposed to be private methodGetITelephony.setAccessible(true); // Invoke getITelephony() to get the ITelephony interface Object telephonyInterface = methodGetITelephony.invoke(telephonyManager); // Get the endCall method from ITelephony Class telephonyInterfaceClass = Class.forName(telephonyInterface.getClass().getName()); Method methodEndCall = telephonyInterfaceClass.getDeclaredMethod("endCall"); // Invoke endCall() methodEndCall.invoke(telephonyInterface); } catch (Exception ex) { // Many things can go wrong with reflection calls return false; } return true; }
3、掛斷電話需要權(quán)限
<uses-permission android:name="android.permission.CALL_PHONE" />
以上所述是小編給大家介紹的Android來電監(jiān)聽和去電監(jiān)聽,希望對大家有所幫助,如果大家有任何疑問請給我留言,小編會(huì)及時(shí)回復(fù)大家的。在此也非常感謝大家對億速云網(wǎng)站的支持!
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