Android 识别来电号码

识别来电号码

学习内容: 你将学会如何使用PhoneStateIntentReceiver来识别来电号码 . 可能出现的情况是, 当有来电时会使音乐播放关闭.

难度: 2 of 5

界面效果:

很不幸，没有

描述:
我们会创建一个PhoneStateIntentReceiver，当PhoneState 状态改变时它会发送消息 Handler. 请看一看 详细注释 的例子实现(实际上注册发生在onCreate()-方法):
同志们啊，恕我注释就不翻了哈。

Java:

package org.anddev.android.reactonincomingcall; import android.app.Activity; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.telephony.Phone; import android.telephony.PhoneStateIntentReceiver; import android.util.Log; public class ReactOnIncomingCall extends Activity { /** Used to recognize Messages from the * myPhoneStateChangedHandler. */ final int PHONECALLSTATE_RECONGNIZE_ID = 0x539; /** Will notify us on changes to the PhoneState*/ PhoneStateIntentReceiver myPsir = null; /** This Handler will react on the messages the * we made our PhoneStateIntentReceiver myPsir * notify us on. */ Handler myPhoneStateChangedHandler = new Handler(){ @Override public void handleMessage(Message msg) { // Recognize the Message by its what-ID if(msg.what == PHONECALLSTATE_RECONGNIZE_ID){ /* Our PhoneStateIntentReceiver myPsir * now contains some recent data, we can grab. */ Phone.State myState = myPsir.getPhoneState(); // Put the Info to the logger for debugging Log.d("PhoneCallStateNotified", myState.toString()); if(myState == Phone.State.RINGING){ // Celebrate =D } } } }; /** Called when the activity is first created. */ @Override public void onCreate(Bundle icicle) { // Set some simple layout super.onCreate(icicle); setContentView(R.layout.main); /* Create a new PhoneStateIntentReceiver * that will pass messages to the handler h * as it receives Intents we make it notify * us below*/ this.myPsir = new PhoneStateIntentReceiver(this, myPhoneStateChangedHandler); /* As we want to get notified on changes * to the Phones-State we tell our * PhoneStateIntentReceiver myPsir, * that we wan to get notified with the ID * (PHONECALLSTATE_RECONGNIZE_ID) we pass to him */ this.myPsir.notifyPhoneCallState(PHONECALLSTATE_RECONGNIZE_ID); /* Register the Intent with the system. */ this.myPsir.registerIntent(); } }