Question

主要活动代码。 BroadcastExample.java

package com.example.broadcast;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;

public class BroadcastExaple extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Log.d("PHONE", "Main Activity...Called");
        setContentView(R.layout.main);
        Log.d("PHONE", "After Mainf Activity...");
    }
}

MyBroadCastReceiver.java

package com.example.broadcast;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.util.Log;


public class MyBroadcastReceiver extends BroadcastReceiver {
 @Override
 /*public void onReceive(Context context, Intent intent) {
  try{
  Log.d("Call BroadCAST","Calling Broad CAST");
  MyPhoneStateListener phoneListener = new MyPhoneStateListener();
  TelephonyManager telephony = (TelephonyManager) context
    .getSystemService(Context.TELEPHONY_SERVICE);
  telephony.listen(phoneListener, PhoneStateListener.LISTEN_CALL_STATE);
  }
  catch(Exception e)
  {

  }

 }*/
  public void onReceive(Context context, Intent intent) {

       Log.d("Message", "Message Received");
    }


}

的AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
 package="com.example.broadcast" android:versionCode="1"
 android:versionName="1.0">
 <uses-prmission android:name="android.permission.READ_PHONE_STATE" />
 <uses-permission android:name="android.permission.CALL_PHONE"/>
 <application android:icon="@drawable/icon" android:label="@string/app_name">
  <activity android:name=".BroadcastExaple" android:label="@string/app_name">
   <intent-filter>
    <action android:name="android.intent.action.MAIN" />
    <category android:name="android.intent.category.LAUNCHER" />
   </intent-filter>
  </activity>
  <receiver android:name=".MyBroadcastReceiver">
   <intent-filter>
    <action android:name="android.intent.action.PHONE_STATE" />
   </intent-filter>
   </receiver>

 </application>


 <uses-sdk android:minSdkVersion="7" />

</manifest>

程序不会进入MyBroadCastReceiver类的onReceive Mathod。

Answer 1

首先，我建议您在此处格式化代码。这样人们就会很高兴阅读您的问题代码。上面的代码列表不会将任何BroadcastReceiver注册到系统。您最好查看ApiDemo了解更多详情。

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