【发布时间】：2015-04-11 16:06:03
【问题描述】：
应用程序检测来电并在来电时显示祝酒词。内部类CallStateListener负责检测调用：
private class CallStateListener extends PhoneStateListener {
@Override
public void onCallStateChanged(int state, String incomingNumber) {
switch (state) {
case TelephonyManager.CALL_STATE_RINGING:
// called when someone is ringing to this phone
Toast.makeText(ctx, "Incoming: " + incomingNumber, Toast.LENGTH_LONG).show();
break;
}
}
}
但是现在在显示 Toast 之后我想取消/拒绝这个来电（任何）。 如何取消这个来电？
整个类看起来像这样：
package com.example.a;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.widget.Toast;
public class CallHelper {
/**
* Listener to detect incoming calls.
*/
private class CallStateListener extends PhoneStateListener {
@Override
public void onCallStateChanged(int state, String incomingNumber) {
switch (state) {
case TelephonyManager.CALL_STATE_RINGING:
// called when someone is ringing to this phone
Toast.makeText(ctx, "Incoming: " + incomingNumber, Toast.LENGTH_LONG).show();
break;
}
}
}
/**
* Broadcast receiver to detect the outgoing calls.
*/
public class OutgoingReceiver extends BroadcastReceiver {
public OutgoingReceiver() {
}
@Override
public void onReceive(Context context, Intent intent) {
String number = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
Toast.makeText(ctx, "Outgoing: " + number, Toast.LENGTH_LONG).show();
}
}
private Context ctx;
private TelephonyManager tm;
private CallStateListener callStateListener;
private OutgoingReceiver outgoingReceiver;
public CallHelper(Context ctx) {
this.ctx = ctx;
callStateListener = new CallStateListener();
outgoingReceiver = new OutgoingReceiver();
}
/**
* Start calls detection.
*/
public void start() {
tm = (TelephonyManager) ctx.getSystemService(Context.TELEPHONY_SERVICE);
tm.listen(callStateListener, PhoneStateListener.LISTEN_CALL_STATE);
IntentFilter intentFilter = new IntentFilter(Intent.ACTION_NEW_OUTGOING_CALL);
ctx.registerReceiver(outgoingReceiver, intentFilter);
}
/**
* Stop calls detection.
*/
/* public void stop() {
tm.listen(callStateListener, PhoneStateListener.LISTEN_NONE);
ctx.unregisterReceiver(outgoingReceiver);
}*/
}
编辑：
EDIT2 也许我没有权限：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.a"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="17"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" />
<uses-permission android:name="android.permission.CALL_PHONE" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service
android:name=".CallDetectService"
android:enabled="true"
android:exported="false" >
</service>
</application>
</manifest>
更新课程
包 com.example.a;
import java.lang.reflect.Method;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.widget.Toast;
public class CallHelper {
/**
* Listener to detect incoming calls.
*/
private class CallStateListener extends PhoneStateListener {
@Override
public void onCallStateChanged(int state, String incomingNumber) {
switch (state) {
case TelephonyManager.CALL_STATE_RINGING:
// called when someone is ringing to this phone
Toast.makeText(ctx, "Incoming: " + incomingNumber, Toast.LENGTH_LONG).show();
try{
TelephonyManager tm = (TelephonyManager) ctx.getSystemService(Context.TELEPHONY_SERVICE);
Class c = Class.forName(tm.getClass().getName());
Method m = c.getDeclaredMethod("getITelephony");
com.android.internal.telephony.ITelephony telephonyService = (com.android.internal.telephony.ITelephony) m.invoke(tm);
telephonyService = (com.android.internal.telephony.ITelephony) m.invoke(tm);
telephonyService.silenceRinger();
telephonyService.endCall();
}catch (Exception e) {
e.printStackTrace();
}
break;
}
}
}
/**
* Broadcast receiver to detect the outgoing calls.
*/
public class OutgoingReceiver extends BroadcastReceiver {
public OutgoingReceiver() {
}
@Override
public void onReceive(Context context, Intent intent) {
String number = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
Toast.makeText(ctx, "Outgoing: " + number, Toast.LENGTH_LONG).show();
}
}
private Context ctx;
private TelephonyManager tm;
private CallStateListener callStateListener;
private OutgoingReceiver outgoingReceiver;
public CallHelper(Context ctx) {
this.ctx = ctx;
callStateListener = new CallStateListener();
outgoingReceiver = new OutgoingReceiver();
}
/**
* Start calls detection.
*/
public void start() {
tm = (TelephonyManager) ctx.getSystemService(Context.TELEPHONY_SERVICE);
tm.listen(callStateListener, PhoneStateListener.LISTEN_CALL_STATE);
IntentFilter intentFilter = new IntentFilter(Intent.ACTION_NEW_OUTGOING_CALL);
ctx.registerReceiver(outgoingReceiver, intentFilter);
}
/**
* Stop calls detection.
*/
/*
* public void stop() { tm.listen(callStateListener,
* PhoneStateListener.LISTEN_NONE);
* ctx.unregisterReceiver(outgoingReceiver); }
*/
}
编辑 3 项目链接：http://www.speedyshare.com/ccY6T/A1.zip
【问题讨论】：
标签： android