拦截来电（来电挂断）

来源：互联网发布：java二进制输出中文编辑：程序博客网时间：2024/04/28 17:05

通过监听系统通话状态的改变，来实现拦截来电，但这种拦截方式存在缺陷，会有来电界面显示（包括来电声音和来电界面），原因是时机过晚；并且只有系统apk才能挂断电话。

1.MainActivity.java

package com.tdc.endphone;import android.os.Bundle;import android.app.Activity;import android.view.Menu;public class MainActivity extends Activity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.main, menu);        return true;    }    }

2.PhoneStatReceiver.java

package com.tdc.endphone;import java.lang.reflect.Method;import android.app.Service;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.telephony.TelephonyManager;import com.android.internal.telephony.ITelephony;  public class PhoneStatReceiver extends BroadcastReceiver {TelephonyManager telMgr;  @Overridepublic void onReceive(Context context, Intent intent) {// TODO Auto-generated method stubtelMgr = (TelephonyManager) context.getSystemService(Service.TELEPHONY_SERVICE);          switch (telMgr.getCallState()) {              case TelephonyManager.CALL_STATE_RINGING:                  endCall();                  break;              case TelephonyManager.CALL_STATE_OFFHOOK:                                                 break;              case TelephonyManager.CALL_STATE_IDLE:                                                 break;          }  } private void endCall()      {          Class<TelephonyManager> c = TelephonyManager.class;                   try          {              Method getITelephonyMethod = c.getDeclaredMethod("getITelephony", (Class[]) null);              getITelephonyMethod.setAccessible(true);              ITelephony iTelephony = null;              iTelephony = (ITelephony) getITelephonyMethod.invoke(telMgr, (Object[]) null);              iTelephony.endCall();          }          catch (Exception e)          {                     }              }  }

3.AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.tdc.endphone"    android:versionCode="1"    android:versionName="1.0" >    <uses-sdk        android:minSdkVersion="8"        android:targetSdkVersion="17" /><uses-permission android:name="android.permission.CALL_PHONE"/>      <!-- 读取手机状态的权限 -->      <uses-permission android:name="android.permission.READ_PHONE_STATE" />      <!-- 读contact的权限 -->      <uses-permission android:name="android.permission.READ_CONTACTS" />      <application        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@style/AppTheme" >        <activity            android:name="com.tdc.endphone.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>                 <!-- 注册监听手机状态 -->          <receiver android:name=".PhoneStatReceiver">              <intent-filter android:priority="1000" >                  <action android:name="android.intent.action.PHONE_STATE" />              </intent-filter>          </receiver>    </application></manifest>

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