Android TelephonyManager详解及实现代码

JAVA的反射机制,探秘TelephonyManager在Framework里包含却在SDK隐藏的几项功能。先来看看本文程序运行的效果图:

  本文程序演示了以下功能:

       1.所有来电自动接听;

       2.所有来电自动挂断;

       3.开启/关闭Radio;

       4.开启/关闭数据连接(WAP or NET的连接)。

       调用TelephonyManager的隐藏API是先参考Framework的/base/telephony/java/com/android/internal/telephony/ITelephony.aidl,然后自己实现一个ITelephony.aidl,最后在TelephonyManager中通过反射机制实例化自定义的ITelephony,实例化之后就可以调用ITelephony里面的函数了。

       本文程序需要在AndroidManifest.xml添加以下两行代码,以获得权限:

XML/HTML代码:

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

  main.xml源码如下:

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
  android:orientation="vertical" android:layout_width="fill_parent" 
  android:layout_height="fill_parent"> 
  <RadioGroup android:layout_height="wrap_content" 
    android:layout_width="fill_parent" android:id="@+id/rGrpSelect"> 
    <RadioButton android:layout_height="wrap_content" 
      android:layout_width="fill_parent" android:id="@+id/rbtnAutoAccept" 
      android:text="所有来电自动接听"></RadioButton> 
    <RadioButton android:layout_height="wrap_content" 
      android:layout_width="fill_parent" android:id="@+id/rbtnAutoReject" 
      android:text="所有来电自动挂断"></RadioButton> 
  </RadioGroup> 
  <ToggleButton android:layout_height="wrap_content" 
    android:layout_width="fill_parent" android:id="@+id/tbtnRadioSwitch" 
    android:textOn="Radio已经启动" android:textOff="Radio已经关闭" 
    android:textSize="24dip" android:textStyle="normal"></ToggleButton> 
  <ToggleButton android:layout_height="wrap_content" 
    android:layout_width="fill_parent" android:id="@+id/tbtnDataConn" 
    android:textSize="24dip" android:textStyle="normal" android:textOn="允许数据连接" 
    android:textOff="禁止数据连接"></ToggleButton> 
</LinearLayout> 

 PhoneUtils.java是手机功能类,从TelephonyManager中实例化ITelephony并返回,源码如下:

package com.testTelephony; 
 
import java.lang.reflect.Field; 
import java.lang.reflect.Method; 
import com.android.internal.telephony.ITelephony; 
import android.telephony.TelephonyManager; 
import android.util.Log; 
 
public class PhoneUtils { 
  /** 
   * 从TelephonyManager中实例化ITelephony,并返回 
   */ 
  static public ITelephony getITelephony(TelephonyManager telMgr) throws Exception { 
    Method getITelephonyMethod = telMgr.getClass().getDeclaredMethod("getITelephony"); 
    getITelephonyMethod.setAccessible(true);//私有化函数也能使用 
    return (ITelephony)getITelephonyMethod.invoke(telMgr); 
  } 
   
  static public void printAllInform(Class clsShow) {  
    try {  
      // 取得所有方法  
      Method[] hideMethod = clsShow.getDeclaredMethods();  
      int i = 0;  
      for (; i < hideMethod.length; i++) {  
        Log.e("method name", hideMethod[i].getName());  
      }  
      // 取得所有常量  
      Field[] allFields = clsShow.getFields();  
      for (i = 0; i < allFields.length; i++) {  
        Log.e("Field name", allFields[i].getName());  
      }  
    } catch (SecurityException e) {  
      // throw new RuntimeException(e.getMessage());  
      e.printStackTrace();  
    } catch (IllegalArgumentException e) {  
      // throw new RuntimeException(e.getMessage());  
      e.printStackTrace();  
    } catch (Exception e) {  
      // TODO Auto-generated catch block  
      e.printStackTrace();  
    }  
  }  
} 

testTelephony.java是主类,使用PhoneStateListener监听通话状态,以及实现上述4种电话控制功能,源码如下:

package com.testTelephony; 
 
import android.app.Activity; 
import android.os.Bundle; 
import android.telephony.PhoneStateListener; 
import android.telephony.TelephonyManager; 
import android.util.Log; 
import android.view.View; 
import android.widget.RadioGroup; 
import android.widget.ToggleButton; 
 
public class testTelephony extends Activity { 
  /** Called when the activity is first created. */ 
  RadioGroup rg;//来电操作单选框 
  ToggleButton tbtnRadioSwitch;//Radio开关 
  ToggleButton tbtnDataConn;//数据连接的开关 
  TelephonyManager telMgr; 
  CallStateListener stateListner; 
  int checkedId=0; 
  @Override 
  public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 
     
    telMgr= (TelephonyManager)getSystemService(TELEPHONY_SERVICE); 
    telMgr.listen(new CallStateListener(), CallStateListener.LISTEN_CALL_STATE); 
     
    PhoneUtils.printAllInform(TelephonyManager.class); 
     
    rg = (RadioGroup)findViewById(R.id.rGrpSelect); 
    rg.setOnCheckedChangeListener(new CheckEvent()); 
    tbtnRadioSwitch=(ToggleButton)this.findViewById(R.id.tbtnRadioSwitch); 
    tbtnRadioSwitch.setOnClickListener(new ClickEvent()); 
    try { 
      tbtnRadioSwitch.setChecked(PhoneUtils.getITelephony(telMgr).isRadioOn()); 
    } catch (Exception e) { 
      Log.e("error",e.getMessage()); 
    } 
    tbtnDataConn=(ToggleButton)this.findViewById(R.id.tbtnDataConn); 
    tbtnDataConn.setOnClickListener(new ClickEvent()); 
    try { 
      tbtnDataConn.setChecked(PhoneUtils.getITelephony(telMgr).isDataConnectivityPossible()); 
    } catch (Exception e) { 
      Log.e("error",e.getMessage()); 
    } 
  } 
   
  /** 
   * 来电时的操作 
   * @author GV 
   * 
   */ 
  public class CheckEvent implements RadioGroup.OnCheckedChangeListener{ 
 
    @Override 
    public void onCheckedChanged(RadioGroup group, int checkedId) { 
      testTelephony.this.checkedId=checkedId; 
    } 
  } 
   
  /** 
   * Radio和数据连接的开关 
   * @author GV 
   * 
   */ 
  public class ClickEvent implements View.OnClickListener{ 
 
    @Override 
    public void onClick(View v) { 
      if (v == tbtnRadioSwitch) { 
        try { 
          PhoneUtils.getITelephony(telMgr).setRadio(tbtnRadioSwitch.isChecked()); 
        } catch (Exception e) { 
          Log.e("error", e.getMessage()); 
        } 
      } 
      else if(v==tbtnDataConn){ 
        try { 
          if(tbtnDataConn.isChecked()) 
            PhoneUtils.getITelephony(telMgr).enableDataConnectivity(); 
          else if(!tbtnDataConn.isChecked()) 
            PhoneUtils.getITelephony(telMgr).disableDataConnectivity(); 
        } catch (Exception e) { 
          Log.e("error", e.getMessage()); 
        }   
      } 
    } 
  } 
   
  /** 
   * 监视电话状态 
   * @author GV 
   * 
   */ 
  public class CallStateListener extends PhoneStateListener { 
    @Override 
    public void onCallStateChanged(int state, String incomingNumber) { 
      if(state==TelephonyManager.CALL_STATE_IDLE)//挂断 
      { 
        Log.e("IDLE",incomingNumber); 
      } 
      else if(state==TelephonyManager.CALL_STATE_OFFHOOK)//接听 
      { 
        Log.e("OFFHOOK",incomingNumber); 
      } 
      else if(state==TelephonyManager.CALL_STATE_RINGING)//来电 
      { 
        if(testTelephony.this.checkedId==R.id.rbtnAutoAccept) 
        { 
          try { 
            //需要<uses-permission android:name="android.permission.MODIFY_PHONE_STATE" />  
            PhoneUtils.getITelephony(telMgr).silenceRinger();//静铃 
            PhoneUtils.getITelephony(telMgr).answerRingingCall();//自动接听 
             
          } catch (Exception e) { 
            Log.e("error",e.getMessage()); 
          }   
        } 
        else if(testTelephony.this.checkedId==R.id.rbtnAutoReject) 
        { 
          try { 
            PhoneUtils.getITelephony(telMgr).endCall();//挂断 
            PhoneUtils.getITelephony(telMgr).cancelMissedCallsNotification();//取消未接显示 
          } catch (Exception e) { 
            Log.e("error",e.getMessage());  
          } 
        } 
      } 
      super.onCallStateChanged(state, incomingNumber); 
    } 
  } 
} 

以上就是Android TelephonyManager的介绍和简单示例,希望能帮助有需要的同学,谢谢大家对本站的支持!