android 接聽和結束通話實現方式
注意:android2.3版本及以上不支援下面的自動接聽方法。
(會拋異常:java.lang.SecurityException: Neither user xxxxx nor current process hasandroid.permission.MODIFY_PHONE_STATE.)
原因:android2.3版本及以上android.permission.MODIFY_PHONE_STATE許可權限制已經改為系統許可權。
普通應用程式已經無法呼叫,所以網上找到的那些如何使用android.permission.MODIFY_PHONE_STATE的文章均已失效,但仍有引用的辦法就是讓你的程式程式系統程式。一種就是預製到ROM中,另一種就是使用系統簽名。第一種我已經試驗通過,第二種還有待驗證。
言歸正傳,先說下如何使用對映機制實現自動接聽和結束通話。
第一步:準備應用環境需要的系統包和aidl檔案。
(1)在應用中建立包:android.telephony
將android系統框架下的\framework\telephony\java\android\telephony目錄中的NeighboringCellInfo.aidl檔案複製到上面建立的包(android.telephony
)中;
(2)在應用中建立包:com.android.internal.telephony
將android系統框架下的\framework\telephony\java\com\android
第二步:建立一個獲取ITelephony的方法
PhoneUtils.java
Java程式碼
package com.zhouzijing.android.demo;
import java.lang.reflect.Method;
import com.android.internal.telephony.ITelephony;
import android.telephony.TelephonyManager;
public class PhoneUtils {
public static ITelephony getITelephony(TelephonyManager telephony) throws Exception {
Method getITelephonyMethod = telephony.getClass().getDeclaredMethod("getITelephony");
getITelephonyMethod.setAccessible(true);//私有化函式也能使用
return (ITelephony)getITelephonyMethod.invoke(telephony);
}
}
第三步:建立電話廣播攔截器
MyPhoneBroadcastReceiver.java
Java程式碼
package com.zhouzijing.android
import com.android.internal.telephony.ITelephony;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.telephony.TelephonyManager;
import android.util.Log;
public class MyPhoneBroadcastReceiver extends BroadcastReceiver {
private final static String TAG = MyPhone.TAG;
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
Log.i(TAG, "[Broadcast]"+action);
//呼入電話
if(action.equals(MyPhone.B_PHONE_STATE)){
Log.i(TAG, "[Broadcast]PHONE_STATE");
doReceivePhone(context,intent);
}
}
public void doReceivePhone(Context context, Intent intent) {
String phoneNumber = intent.getStringExtra(
TelephonyManager.EXTRA_INCOMING_NUMBER);
TelephonyManager telephony = (TelephonyManager)context.getSystemService(
Context.TELEPHONY_SERVICE);
int state = telephony.getCallState();
switch(state){
case TelephonyManager.CALL_STATE_RINGING:
Log.i(TAG, "[Broadcast]等待接電話="+phoneNumber);
try {
ITelephony iTelephony = PhoneUtils.getITelephony(telephony);
iTelephony.answerRingingCall();//自動接通電話
//iTelephony.endCall();//自動結束通話電話
} catch (Exception e) {
Log.e(TAG, "[Broadcast]Exception="+e.getMessage(), e);
}
break;
case TelephonyManager.CALL_STATE_IDLE:
Log.i(TAG, "[Broadcast]電話結束通話="+phoneNumber);
break;
case TelephonyManager.CALL_STATE_OFFHOOK:
Log.i(TAG, "[Broadcast]通話中="+phoneNumber);
break;
}
}
}
第四部:註冊電話廣播攔截器
MyPhone.java
Java程式碼
package com.zhouzijing.android.demo;
import android.app.Activity;
import android.content.IntentFilter;
import android.os.Bundle;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.view.View;
public class MyPhone extends Activity {
public final static String TAG = "MyPhone";
public final static String B_PHONE_STATE = TelephonyManager.ACTION_PHONE_STATE_CHANGED;
private MyPhoneBroadcastReceiver mBroadcastReceiver;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.my_phone);
}
//按鈕1-註冊廣播
public void registerThis(View v) {
Log.i(TAG, "registerThis");
mBroadcastReceiver = new MyPhoneBroadcastReceiver();
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(B_PHONE_STATE);
intentFilter.setPriority(Integer.MAX_VALUE);
registerReceiver(mBroadcastReceiver, intentFilter);
}
//按鈕2-撤銷廣播
public void unregisterThis(View v) {
Log.i(TAG, "unregisterThis");
unregisterReceiver(mBroadcastReceiver);
}
}
第5步:在AndroidManifest.xml配置許可權
Xml程式碼
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.MODIFY_PHONE_STATE" />
<uses-permission android:name="android.permission.CALL_PHONE"/>
其中:
Java程式碼
iTelephony.answerRingingCall();//自動接通電話
必須有許可權 android.permission.MODIFY_PHONE_STATE
Java程式碼
iTelephony.endCall();//自動結束通話電話
必須有許可權 android.permission.CALL_PHONE
因為Android2.3以上增加了對permission android.permission.MODIFY_PHONE_STATE 的限制,2.3之前的通過反射機制呼叫ITelephone的能力的做法已經不適用。
2.3上實現方式:
public synchronized void answerRingingCall() {
查詢系統PhoneAPP應用(PhoneGlobals.java)實現了對耳機插入、多媒體按鍵等通知的接受和處理。其中未發現有特殊的地方,個人認為,如果系統接收到此廣播應該可以進行接聽或結束通話操作。
private void answerRingingCallWithBroadcast(Context context,TelephonyManager telmanager){
AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
//判斷是否插上了耳機
if (! audioManager.isWiredHeadsetOn()) {
//4.1以上系統限制了部分許可權, 使用三星4.1版本測試提示警告:Permission Denial: not allowed to send broadcast android.intent.action.HEADSET_PLUG from pid=1324, uid=10017
//這裡需要注意一點,傳送廣播時加了許可權“android.permission.CALL_PRIVLEGED”,則接受該廣播時也需要增加該許可權。但是4.1以上版本貌似這個許可權只能系統應用才可以得到。測試的時候,自定義的接收器無法接受到此廣播,後來去掉了這個許可權,設為NULL便可以監聽到了。
if(android.os.Build.VERSION.SDK_INT >=15 ){
Intent meidaButtonIntent = new Intent(Intent.ACTION_MEDIA_BUTTON);
KeyEvent keyEvent = new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_HEADSETHOOK);
meidaButtonIntent.putExtra(Intent.EXTRA_KEY_EVENT,keyEvent);
context.sendOrderedBroadcast(meidaButtonIntent, null);
}else{
// 以下適用於Android2.3及2.3以上的版本上 ,但測試發現4.1系統上不管用。
Intent localIntent1 = new Intent(Intent.ACTION_HEADSET_PLUG);
localIntent1.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
localIntent1.putExtra("state", 1);
localIntent1.putExtra("microphone", 1);
localIntent1.putExtra("name", "Headset");
context.sendOrderedBroadcast(localIntent1, "android.permission.CALL_PRIVILEGED");
Intent localIntent2 = new Intent(Intent.ACTION_MEDIA_BUTTON);
KeyEvent localKeyEvent1 = new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_HEADSETHOOK);
localIntent2.putExtra(Intent.EXTRA_KEY_EVENT, localKeyEvent1);
context. sendOrderedBroadcast(localIntent2, "android.permission.CALL_PRIVILEGED");
Intent localIntent3 = new Intent(Intent.ACTION_MEDIA_BUTTON);
KeyEvent localKeyEvent2 = new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_HEADSETHOOK);
localIntent3.putExtra(Intent.EXTRA_KEY_EVENT, localKeyEvent2);
context.sendOrderedBroadcast(localIntent3, "android.permission.CALL_PRIVILEGED");
Intent localIntent4 = new Intent(Intent.ACTION_HEADSET_PLUG);
localIntent4.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
localIntent4.putExtra("state", 0);
localIntent4.putExtra("microphone", 1);
localIntent4.putExtra("name", "Headset");
context.sendOrderedBroadcast(localIntent4, "android.permission.CALL_PRIVILEGED");
}
} else {
Intent meidaButtonIntent = new Intent(Intent.ACTION_MEDIA_BUTTON);
KeyEvent keyEvent = new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_HEADSETHOOK);
meidaButtonIntent.putExtra(Intent.EXTRA_KEY_EVENT,keyEvent);