BroadcastReceiver 小案例

我们阻止所有的拨号。

获取所拨的数据。

package org.china.lee.receiver;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;public class OutPhoneReceiver extends BroadcastReceiver {@Overridepublic void onReceive(Context context, Intent intent) {System.out.println(getResultData());abortBroadcast();}}

 <receiver             android:name="org.china.lee.receiver.OutPhoneReceiver"            >            <intent-filter                 android:priority="1000"                >                <action android:name="android.intent.action.NEW_OUTGOING_CALL"/>            </intent-filter>        </receiver> <uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS"/>

以下不管我们拨啥都拨10086

log

阻止你所有的拨号。

package org.china.lee.receiver;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;public class OutPhoneReceiver extends BroadcastReceiver {@Overridepublic void onReceive(Context context, Intent intent) {setResultData(null);}}

最后一个是在视频学习中的ip拨号器。

首先我们将我们的前缀存在文件中，当拨号的时候，我们将这个数据取出来，加在号码前面。

布局文件：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="wrap_content"    android:layout_height="match_parent"    android:orientation="vertical"    tools:context=".BroadcastActivity" >    <EditText         android:id="@+id/et_ip"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        />    <Button         android:id="@+id/btn"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="ip前缀"        /></LinearLayout>

activity保存前缀代码

package org.china.lee.broadcastdemo;import android.app.Activity;import android.content.Context;import android.content.SharedPreferences;import android.content.SharedPreferences.Editor;import android.os.Bundle;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;public class BroadcastActivity extends Activity {private EditText et_ip;private Button btn;private SharedPreferences sp;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);super.setContentView(R.layout.activity_broadcast);sp=getSharedPreferences("config",Context.MODE_PRIVATE);et_ip=(EditText) super.findViewById(R.id.et_ip);btn=(Button) super.findViewById(R.id.btn);btn.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {String number=et_ip.getText().toString().trim();if(number==null || "".equals(number)){Toast.makeText(getApplicationContext(),"ip号码为空",Toast.LENGTH_SHORT).show();return ;}Editor editor=sp.edit();editor.putString("number",number);editor.commit();}});}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.broadcast, menu);return true;}}

广播接受者代码：

package org.china.lee.receiver;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.content.SharedPreferences;public class OutPhoneReceiver extends BroadcastReceiver {@Overridepublic void onReceive(Context context, Intent intent) {System.out.println("初始化数据:"+getResultData());SharedPreferences sp=context.getSharedPreferences("config",Context.MODE_PRIVATE);String number=sp.getString("number","");setResultData(number+getResultData());}}

系统清单文件配置。

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="org.china.lee.broadcastdemo"    android:versionCode="1"    android:versionName="1.0" >    <uses-sdk        android:minSdkVersion="8"        android:targetSdkVersion="18" />    <uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS"/>    <application        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@style/AppTheme" >        <activity            android:name="org.china.lee.broadcastdemo.BroadcastActivity"            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="org.china.lee.receiver.OutPhoneReceiver"            >            <intent-filter                 android:priority="1000"                >                <action android:name="android.intent.action.NEW_OUTGOING_CALL"/>            </intent-filter>        </receiver>    </application></manifest>