android之广播(二)

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textStyle="bold"
        android:textSize="25sp"
        android:text="需要拦截的号码"/>
    <EditText
        android:id="@+id/phoneNum"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
    <Button
        android:id="@+id/sure"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="18sp"
        android:text="确认"/>
</LinearLayout>

package xidian.dy.com.chujia;

import android.content.Context;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    SharedPreferences sp;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        sp = getSharedPreferences("hate", Context.MODE_PRIVATE);
        Button button = (Button) findViewById(R.id.sure);
        if(button != null)
            button.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    EditText et = (EditText) findViewById(R.id.phoneNum);
                    if(et != null){
                        sp.getString("num", et.getText().toString());
                        Toast.makeText(MainActivity.this, "保存成功", Toast.LENGTH_SHORT).show();
                    }
                }
            });
    }
}

package xidian.dy.com.chujia;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.provider.Telephony;
import android.telephony.SmsMessage;
import android.util.Log;

/**
 * Created by dy on 2016/7/11.
 */
public class SmsReciever extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
    //短信的信息封装在Intent中
        Bundle bundle = intent.getExtras();
        Object[] objects = (Object[]) bundle.get("pdus");
        SmsMessage sms;
        int currentApiVversion = Build.VERSION.SDK_INT;
        //拿到广播中的所有短信(有可能短信太长在发送时被拆分成多条进行发送)
        for (Object obj : objects) {
            if(currentApiVversion >= Build.VERSION_CODES.LOLLIPOP)
                sms =  SmsMessage.createFromPdu((byte[])obj, Telephony.Sms.Intents.SMS_RECEIVED_ACTION);
            else
                sms = SmsMessage.createFromPdu((byte[])obj);
            Log.i(this.getClass().getName(), sms.getOriginatingAddress());
            Log.i(this.getClass().getName(), sms.getMessageBody());

            //广播拦截
            //来自1243的短信将会被拦截掉
            if(sms.getOriginatingAddress().equals("1243")){
                abortBroadcast();
            }
        }
    }
}

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="xidian.dy.com.chujia">
    <uses-permission android:name="android.permission.RECEIVE_SMS"/>
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity
            android:name=".MainActivity"
            android:label="主界面">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <receiver android:name=".SmsReciever">
            <intent-filter android:priority="1000">
                <action android:name="android.provider.Telephony_SMS_RECIEVED"/>
            </intent-filter>
        </receiver>
    </application>
</manifest>