以下是我使用反射访问 com.android.internal.telephony.CallManager 的代码。我正在使用它的函数 GetActiveFGCallState() 来获取不同的状态,例如 Alerting 拨出电话,但它会继续返回我的空闲状态,即使状态是OFF_HOOK或RINGING。所以我从中了解到我的呼叫不在前台,因为如果没有活动的前台呼叫,则活动前台呼叫的状态返回IDLE。那么我的理解正确吗?如果是,那么如何将呼叫活动带到前台,如果不是,那么可能是什么问题?
主要活动代码:
package com.example.misscall;
import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.view.Menu;
public class MainActivity extends Activity {
final Context context = this;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Intent callIntent = new Intent(Intent.ACTION_CALL,
Uri.parse("tel:" + "03365188508"));
callIntent.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
startActivity(callIntent);
}
@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;
}
}
主要文件:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.misscall"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<uses-feature android:name="android.hardware.telephony">
</uses-feature>
<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS"/>
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="android.permission.CALL_PHONE" />
<uses-permission android:name="android.permission.MODIFY_PHONE_STATE"/>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<receiver android:name="com.example.misscall.DataConnection">
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE"/>
</intent-filter>
</receiver>
<activity
android:name="com.example.misscall.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>
</application>
</manifest>
数据连接类
import android.os.RemoteException;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.widget.Toast;
public class DataConnection extends BroadcastReceiver {
TelephonyManager Tm;
ITelephony telephonyService;
Class c = null;
Method methodGetInstance = null;
Method methodGetActiveFgCallState=null;
String TAG="Tag";
Object objectCallManager=null;
@Override
public void onReceive(final Context context, Intent intent) {
Tm=(TelephonyManager)context.getSystemService(Context.TELEPHONY_SERVICE);
final ClassLoader classLoader = this.getClass().getClassLoader();
try {
final Class<?> classCallManager = classLoader.loadClass("com.android.internal.telephony.CallManager");
Log.e(TAG, "CallManager: Class loaded " + classCallManager.toString());
methodGetInstance = classCallManager.getDeclaredMethod("getInstance");
methodGetInstance.setAccessible(true);
Log.e(TAG, "CallManager: Method loaded " + methodGetInstance.getName());
objectCallManager = methodGetInstance.invoke(null);
Log.e(TAG, "CallManager: Object loaded " + objectCallManager.getClass().getName());
Method[] aClassMethods = classCallManager.getDeclaredMethods();
for(Method m : aClassMethods)
{
Log.e("MEthods",m.getName());
}
methodGetActiveFgCallState = classCallManager.getDeclaredMethod("getActiveFgCallState");
Log.e(TAG, "CallManager: Method loaded " + methodGetActiveFgCallState.getName());
Log.e(TAG, "CallManager: What is the Call state = " + methodGetActiveFgCallState.invoke(objectCallManager));
}
catch (ClassNotFoundException e) {
Log.e(TAG, e.getClass().getName() + e.toString());
}
catch (NoSuchMethodException e) {
Log.e(TAG, e.getClass().getName() + e.toString());
}
catch (InvocationTargetException e) {
Log.e(TAG, e.getClass().getName() + e.toString());
}
catch (IllegalAccessException e) {
Log.e(TAG, e.getClass().getName() + e.toString());
}
Tm.listen(new PhoneStateListener(){
public void onCallStateChanged(int state,String number) {
super.onCallStateChanged(state, number);
try {
if (methodGetActiveFgCallState.invoke(objectCallManager).toString().toLowerCase() .equals("idle"))
{
Toast.makeText(context, "I am in idle state", Toast.LENGTH_LONG).show();
}
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InvocationTargetException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
},PhoneStateListener.LISTEN_CALL_STATE);
}
}