ANDROID 通过监听来电去电，并弹出悬浮窗

要监听android打电话和接电话，有一种的是通过新建一个Receiver继承自BroadcastReceiver。

还有一种也可通过PhoneStateListener来实现。今天就说说后面一种，废话不说了，直接上代码

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package com.webphone; import org.apache.http.message.BasicNameValuePair; import android.content.Context; import android.content.Intent; import android.graphics.PixelFormat; import android.telephony.PhoneStateListener; import android.telephony.TelephonyManager; import android.view.WindowManager; import android.widget.TextView;   public class TelListener extends PhoneStateListener {                   private Context context;         private WindowManager wm;//系统管理         private TextView tv;//悬浮窗文本         private Boolean isInComing=false;//标记是否为来电         public TelListener(Context context){                 this.context = context;         }         @Override         public void onCallStateChanged(int state, String incomingNumber) {                 switch(state)                 {                 case TelephonyManager.CALL_STATE_RINGING://此时为响铃状态                     {                         isInComing=true;//如果有响铃状态，则表示此时为来电                         //以下代码为悬浮窗显示来电号码                         //定义窗口布局                         wm = (WindowManager)context.getApplicationContext().getSystemService(Context.WINDOW_SERVICE);                          WindowManager.LayoutParams params = new WindowManager.LayoutParams();                          //设置窗口布局居于所有之上                         params.type = WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY;                          //使窗口失去焦点                         params.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;                         params.width = WindowManager.LayoutParams.WRAP_CONTENT;                          params.height = WindowManager.LayoutParams.WRAP_CONTENT;                          //背景透明                         params.format = PixelFormat.RGBA_8888;                         tv = new TextView(context);                         String comingNum=  GetInComingNumber();                         tv.setTextSize(40);                         tv.setText("来电"+comingNum);                         wm.addView(tv, params);//添加到系统窗口中。                     }break;                 case TelephonyManager.CALL_STATE_OFFHOOK: //如果处于忙时状态                     {                         if(!isInComing)//如果非来电状态，则标记为去电                         {                             if(wm != null)                                 wm.removeView(tv);                             //以下代码为悬浮窗显示去电号码                             wm = (WindowManager)context.getApplicationContext().getSystemService(Context.WINDOW_SERVICE);                              WindowManager.LayoutParams params = new WindowManager.LayoutParams();                              params.type = WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY;                              params.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;                             params.width = WindowManager.LayoutParams.WRAP_CONTENT;                              params.height = WindowManager.LayoutParams.WRAP_CONTENT;                              params.format = PixelFormat.RGBA_8888;                             tv = new TextView(context);                             tv.setTextSize(40);                             //获取实际去电号码，此处使用自定义方法，（这边去电号码自己想办法保存）                             String outcomingNum=AppData.getRealNum();                             tv.setText("去电" + outcomingNum);                             wm.addView(tv, params);                             isInComing=false;//标记为非来电                         }                     }break;                 case TelephonyManager.CALL_STATE_IDLE:                     {                         if(wm != null && tv!=null)                             wm.removeView(tv);                     }break;                 }                 super.onCallStateChanged(state, incomingNumber);         } }

当然了，虽然代码是OK了，但是记得配置好权限。

1	<uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>

虽然如此，既然是弹出悬浮窗，那也该配置下弹出悬浮窗的权限吧。

1	<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>

都好了，那最重要的一步可别忘记了，在启动的时候添加监听，并且注册广播。

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TelephonyManager telM = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);       //设置监听       telM.listen(new TelListener(this.getContext()), PhoneStateListener.LISTEN_CALL_STATE);

还要在AndroidManifest.xml中注册广播接收类

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<receiver android:name=".PhoneBootReceiver">             <intent-filter>                     <action android:name="android.intent.action.BOOT_COMPLETED" />             </intent-filter>     </receiver>

如果想要接收开机广播，然后在接收到广播后注册来电监听。接收开机广播需要有“RECEIVE_BOOT_COMPLETED”权限，AndroidManifest.xml 中申明如下

1	<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>

其实android API本身是无法监听去电的，这只是一种转弯的方法。。

PS：在转个弯，你就可以实现来电归属地查询了。。

目前我的处理方式是接收开机广播，然后在接收到广播后注册来电监听。接收开机广播需要有“android.permission.RECEIVE_BOOT_COMPLETED”权限，manifest中申明如下

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