四大组件之一 BroadcastReceiver （短信拦截）

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >
    <TextView
         android:layout_width="fill_parent"
         android:layout_height="wrap_content"
         android:id="@+id/tv"
         android:text="@string/hello" />
</LinearLayout>

SMSReceiver.java

package com.puyotech.sms;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.telephony.SmsMessage;
import android.util.Log;
import android.widget.Toast;

public class SMSReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
    Object[]sms=(Object[]) intent.getExtras().get("pdus");
    SmsMessage[] msg=new SmsMessage[sms.length];
     StringBuilder sb = new StringBuilder();
     Log.i("@@", "短信内容已经获得");
     for (int i = 0; i < sms.length; i++) {
         msg[i] = SmsMessage.createFromPdu((byte[]) sms[i]);
     }
         for (SmsMessage currMsg : msg) {
         sb.append("您收到了来自:【");
         sb.append(currMsg.getDisplayOriginatingAddress());
         sb.append("】的信息，内容：");
         sb.append(currMsg.getDisplayMessageBody());
         }
         Log.i("@@", sb.toString());
         Toast toast = Toast.makeText(context, "收到了短消息: " + sb.toString(),Toast.LENGTH_LONG);
         toast.show();
    }

}

SMSTestActivity.java

package com.puyotech.sms;

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;

public class SMSTestActivity extends Activity {
    private TextView tv;
    
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        new Thread(new Runnable() {
            
            @Override
            public void run() {
                tv=(TextView) findViewById(R.id.tv);
            
                tv.post(new Runnable() {
                    @Override
                    public void run() {
                        tv.setText("你妹的，在子线程也可以实例化啊");
                    }
                });
                
            }
        }).start();
    }
}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.puyotech.sms"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="8" />
    <uses-permission android:name="android.permission.RECEIVE_SMS"/>
    <uses-permission android:name="android.permission.READ_SMS"/>
    <application android:icon="@drawable/ic_launcher" android:label="@string/app_name" >
        <activity
            android:name=".SMSTestActivity"
            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=".SMSReceiver" android:permission="android.permission.BROADCAST_SMS">
            <intent-filter android:priority="2147483648" >
                <action android:name="android.provider.Telephony.SMS_RECEIVED"/>
                  <category android:name="android.intent.category.DEFAULT"/>
                  <category android:name="android.intent.category.HOME"/>
                  <category android:name="android.intent.category.LAUNCHER"/>
                  <category android:name="android.intent.category.ALTERNATIVE"/>
            </intent-filter>
        </receiver>
        
    </application>

</manifest>