1.問題

專案中有自己企業的通訊錄，但是在應用中撥打公司通訊錄的聯絡人，由於手機通訊錄中沒有相應的資訊，只顯示一串電話號

2 .目的

監聽系統來電，獲取到電話號碼，通過呼叫介面，查詢出來相應電話號碼的詳細資訊，並彈出系統懸浮框，給使用者提示。

3.實現

首先 註冊廣播監聽系統來電。監聽系統來電需要、註冊相應的許可權

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

自定義廣播去監聽系統來電

 public class PhoneReceiver extends BroadcastReceiver {

    private Context mcontext;


    @Override
    public void onReceive(Context context, Intent intent){
        mcontext=context;
        System.out.println("action"+intent.getAction());
        if(intent.getAction().equals(Intent.ACTION_NEW_OUTGOING_CALL)){
            //如果是去電（撥出）
 

            Log.e("TAG","撥出");
        }else{

            Log.e("TAG","來電");
            TelephonyManager tm = (TelephonyManager)context.getSystemService(Service.TELEPHONY_SERVICE);
            tm.listen(listener, PhoneStateListener.LISTEN_CALL_STATE);
            //設定一個監聽器
        }
    }


    private
 
 PhoneStateListener listener=new PhoneStateListener(){

        @Override
        public void onCallStateChanged(int state, final String incomingNumber) {
            // TODO Auto-generated method stub
            //state 當前狀態 incomingNumber,貌似沒有去電的API
            super.onCallStateChanged(state, incomingNumber);
            switch(state){
                case TelephonyManager.CALL_STATE_IDLE:
                    Log.e("TAG","結束通話");

                    break;
                case TelephonyManager.CALL_STATE_OFFHOOK:
                    Log.e("TAG","接聽");

                    break;
                case TelephonyManager.CALL_STATE_RINGING:

                    //輸出來電號碼
                    Log.e("TAG","響鈴:來電號碼"+incomingNumber);
                    Log.e("TAG","響鈴:======"+Thread.currentThread().getName());

                    break;
            }
        }
    };
    };

需要靜態註冊廣播

 <receiver android:name="com.cloud.adapter.myview.PhoneReceiver">
            <intent-filter>
                <action android:name="android.intent.action.PHONE_STATE"/>
                <action android:name="android.provider.Telephony.SMS_RECEIVED"/>
                <action android:name="android.intent.action.NEW_OUTGOING_CALL" />
            </intent-filter>
        </receiver>

其次在註冊完，廣播之後我們需要在監聽到系統的來電之後，後獲取到電話號之後去請求介面，獲取資料。並彈出系統懸浮框。

注意：在彈出系統懸浮框的時候需要註冊許可權，並且檢查應用的允許彈出懸浮框許可權是否開啟。

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

在監聽中的 TelephonyManager.CALL_STATE_RINGING中操作

        inflate= LayoutInflater.from(mcontext);
                            wm = (WindowManager)mcontext.getApplicationContext().getSystemService(Context.WINDOW_SERVICE);
                            WindowManager.LayoutParams params = new WindowManager.LayoutParams();
                            params.type = WindowManager.LayoutParams.TYPE_PHONE;
                            params.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;
                            params.gravity= Gravity.CENTER;
                            params.width = WindowManager.LayoutParams.MATCH_PARENT;
                            params.height = 600;
                            params.format = PixelFormat.RGBA_8888;
                            phoneView=inflate.inflate(R.layout.phone_alert,null);
                            wm.addView(phoneView, params);

自定義一個佈局檔案，作為要新增的View，佈局檔案如下

 <?xml version="1.0" encoding="utf-8"?>
    <com.cloud.adapter.myview.MyLinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="300dp"
    android:layout_height="200dp"
    android:orientation="vertical"
    android:layout_gravity="center"
    android:id="@+id/rootview"

    >
    <LinearLayout
    android:background="@drawable/top_background"
    android:layout_width="300dp"
    android:layout_height="100dp"
    android:orientation="vertical"
    android:layout_gravity="center"
    android:gravity="center"

    >
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="陸XX"
        android:textSize="26sp"
        />
    <TextView
        android:layout_marginTop="5dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="16sp"
        android:text="系統執行科科長"
        />
    </LinearLayout>
    <LinearLayout
        android:background="@drawable/bottom_background"
        android:layout_width="300dp"
        android:layout_height="100dp"
        android:orientation="vertical"
        android:layout_gravity="center"
        android:gravity="center"
        >
        <TextView
            android:textColor="#fff"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="公司本部-資訊中心-系統運營科"
            android:textSize="20sp"
            />
        <TextView
            android:layout_marginTop="10dp"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textSize="20sp"
            android:textColor="#fff"
            android:text="XXX有限公司"
            android:layout_marginBottom="10dp"
            />
    </LinearLayout>

    </com.cloud.adapter.myview.MyLinearLayout>

使用到兩個背景shape

 <?xml version="1.0" encoding="utf-8"?>
    <shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <corners android:topLeftRadius="20dp"
        android:topRightRadius="20dp"
        />
    <solid android:color="@color/colorPrimary"/>
    </shape>

------------------------------------------

    <?xml version="1.0" encoding="utf-8"?>
    <shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <corners android:bottomLeftRadius="20dp"
        android:bottomRightRadius="20dp"
        />
    <solid android:color="#f44"/>
    </shape>

廣播中完整程式碼

 package com.cloud.adapter.myview;

    import android.app.Activity;
    import android.app.Service;
    import android.content.BroadcastReceiver;
    import android.content.Context;
    import android.content.Intent;
    import android.graphics.PixelFormat;
    import android.os.Handler;
    import android.os.Looper;
    import android.telephony.PhoneStateListener;
    import android.telephony.TelephonyManager;
    import android.util.Log;
    import android.view.Gravity;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.view.WindowManager;
    import android.widget.TextView;

    /**
     * Created by zhang on 2017/10/10.
     */

    public class PhoneReceiver extends BroadcastReceiver {

    private Context mcontext;
    private WindowManager wm;

    @Override
    public void onReceive(Context context, Intent intent){
        mcontext=context;
        System.out.println("action"+intent.getAction());
        if(intent.getAction().equals(Intent.ACTION_NEW_OUTGOING_CALL)){
            //如果是去電（撥出）
            Log.e("TAG","撥出");
        }else{
            //查了下android文件，貌似沒有專門用於接收來電的action,所以，非去電即來電
            Log.e("TAG","來電");
            TelephonyManager tm = (TelephonyManager)context.getSystemService(Service.TELEPHONY_SERVICE);
            tm.listen(listener, PhoneStateListener.LISTEN_CALL_STATE);
            //設定一個監聽器
        }
    }

    private TextView tv;
    private LayoutInflater inflate;
    private View phoneView;
    private PhoneStateListener listener=new PhoneStateListener(){

        @Override
        public void onCallStateChanged(int state, final String incomingNumber) {
            // TODO Auto-generated method stub
            //state 當前狀態 incomingNumber,貌似沒有去電的API
            super.onCallStateChanged(state, incomingNumber);
            switch(state){
                case TelephonyManager.CALL_STATE_IDLE:
                    Log.e("TAG","結束通話");
                    wm.removeView(tv);
                    break;
                case TelephonyManager.CALL_STATE_OFFHOOK:
                    Log.e("TAG","接聽");
                    wm.removeView(tv);
                    break;
                case TelephonyManager.CALL_STATE_RINGING:

                    inflate= LayoutInflater.from(mcontext);
                    wm = (WindowManager)mcontext.getApplicationContext().getSystemService(Context.WINDOW_SERVICE);
                    WindowManager.LayoutParams params = new WindowManager.LayoutParams();
                    params.type = WindowManager.LayoutParams.TYPE_PHONE;
                    params.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;
                    params.gravity= Gravity.CENTER;
                    params.width = WindowManager.LayoutParams.MATCH_PARENT;
                    params.height = 600;
                    params.format = PixelFormat.RGBA_8888;
                    phoneView=inflate.inflate(R.layout.phone_alert,null);
                    wm.addView(phoneView, params);
                    Log.e("TAG","響鈴:來電號碼"+incomingNumber);
                    Log.e("TAG","響鈴:======"+Thread.currentThread().getName());
                    //輸出來電號碼
                    break;
            }
        }
    };
    };

效果圖