Android电话拦截实现以及TelephonyManager监听的取消
jopen
9年前
本篇博客目的：实现电话的拦截
会遇到的问题：android studio下AIDL的使用，TelephonyManager.Listen()的监听取消。
首先，电话状态监听需要涉及到系统服务TelephonyManager，我们需要获取到他的实例
mTelephonyManager = (TelephonyManager)getSystemService(TELEPHONY_SERVICE);
之后我们就可以向他添加状态改变的监听，需要重写监听器PhoneStateListener
他的state值有如下几种
TelephonyManager.CALL_STATE_IDLE: 空闲状态
TelephonyManager.CALL_STATE_RINGING: 响铃状态
TelephonyManager.CALL_STATE_OFFHOOK: 挂掉电话
class MyPhoneListener extends PhoneStateListener{ @Override public void onCallStateChanged(int state, String incomingNumber) { if(state==TelephonyManager.CALL_STATE_RINGING){ endCall(); super.onCallStateChanged(state,incomingNumber); } } }这里我给他加了个模式来设置监听与取消。 我们需要用一个FLAG ： PhoneStateListener.LISTEN_NONE来取消监听。如果新加监听器，会同时监听
private void setTelephonyListener(int mode){ if(mode==INTERRUPTED){ mTelephonyManager.listen(mMyPhoneListener,PhoneStateListener.LISTEN_CALL_STATE); }else{ mTelephonyManager.listen(mMyPhoneListener,PhoneStateListener.LISTEN_NONE); } }好了，以上就是状态监听的步骤。 那么如何实现电话的拦截呢?由于安卓隐藏了PHONE类的API，所以我们需要用AIDL将它的方法反射出来。
1，新建AIDL文件,ITelephony.aidl。注意包名为com.android.internal.telephony，不可更改，此时需要rebuild project才能正常使用。
内容如下：
package com.android.internal.telephony; /** * Interface used to interact with the phone. Mostly this is used by the * TelephonyManager class. A few places are still using this directly. * Please clean them up if possible and use TelephonyManager instead. * {@hide} */ interface ITelephony { /** * End call or go to the Home screen * @return whether it hung up */ boolean endCall(); /** * Answer the currently-ringing call. * * If there's already a current active call, that call will be * automatically put on hold. If both lines are currently in use, the * current active call will be ended. * * TODO: provide a flag to let the caller specify what policy to use * if both lines are in use. (The current behavior is hardwired to * "answer incoming, end ongoing", which is how the CALL button * is specced to behave.) * * TODO: this should be a oneway call (especially since it's called * directly from the key queue thread). */ void answerRingingCall(); /** * Allow mobile data connections. */ boolean enableDataConnectivity(); /** * Disallow mobile data connections. */ boolean disableDataConnectivity(); /** * Report whether data connectivity is possible. */ boolean isDataConnectivityPossible(); }之后来反射出来endcall方法，当来电的时候 即可对电话进行拦截 private void endCall() { Class<TelephonyManager> c = TelephonyManager.class; try { Method getITelephonyMethod = c.getDeclaredMethod("getITelephony", (Class[]) null); getITelephonyMethod.setAccessible(true); ITelephony iTelephony = null; iTelephony = (ITelephony) getITelephonyMethod.invoke(mTelephonyManager, (Object[]) null); iTelephony.endCall(); Log.i("wing", "iTelePhony endcall"); } catch (Exception e) { Log.i("wing", "iTelePhony endcall failed"+e.getMessage() ); } }以上就是我的经验和总结，欢迎大家讨论。