Android实现短信验证码自动拦截读取功能

import android.net.Uri;
import android.os.bundle;
import android.os.Handler;
import android.os.message;
import android.support.v7.app.AppCompatActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.EditText;

public class MainActivity extends AppCompatActivity {

public static final int MSG_RECEIVER_CODE = 1;
private EditText smsEt;
private Handler handler = new Handler() {
  @Override
  public void handlemessage(message msg) {
    switch (msg.what) {
      case MSG_RECEIVER_CODE:
        String message= (String) msg.obj;
        smsEt.setText(messagE);
        smsEt.setSELEction(message.length());
        break;
      default:
        break;
    }
  }
};
private MySmsObserver mySmsObserver;

@Override
protected void onCreate(Bundle savedInstanceStatE) {
  super.onCreate(savedInstanceStatE);
  setContentView(R.layout.activity_main);
  smsEt = (EditText) findViewById(R.id.smsEt);
  mySmsObserver = new MySmsObserver(this,handler);
  Uri uri=Uri.parse("content://sms");
  getContentResolver().registerContentObserver(uri,true,mySmsObserver);
}

@Override
public Boolean onCreateOptionsMenu(Menu menu) {
  getMenuInflater().inflate(R.menu.menu_main,menu);
  return true;
}


@Override
protected void onDestroy() {
  super.onDestroy();
  getContentResolver().unregisterContentObserver(mySmsObserver);
}

@Override
public Boolean onOptionsItemSELEcted(MenuItem item) {
  int id = item.getItemId();

  if (id == R.id.action_setTings) {
    return true;
  }

  return super.onOptionsItemSELEcted(item);
}
}

import android.content.Context;
import android.database.ContentObserver;
import android.database.cursor;
import android.net.Uri;
import android.os.Handler;
import android.util.Log;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
* Created by Nate on 2015/9/28.
*/
public class MySmsObserver extends ContentObserver {

private Context mContext;
private Handler mHandler;


public MySmsObserver(Context context,Handler handler) {
  super(handler);
  this.mContext = context;
  this.mHandler = handler;
}

@Override
public void onChange(Boolean selfChange,Uri uri) {
  super.onChange(selfChange,uri);

  if (uri.toString().equals("content://sms/raw")) {
    return;
  }

  Uri queryUri = Uri.parse("content://sms/inBox");
  String code = "";
  cursor cursor = mContext.getContentResolver().query(queryUri,null,"date desc");
  if (cursor != null) {
    if (cursor.moveToFirst()) {
      String address = cursor.getString(cursor.getcolumnIndex("address"));
      String message = cursor.getString(cursor.getcolumnIndex("body"));

      // TODO: 2015/9/28 这里可以根据address做一些自己的判断，比如只有特定的手机号才做判断

      Log.e("guxuewu","address:==>" + address + " message:==>" + messagE);

      // TODO: 2015/9/28 这里可以根据自己的项目进行特定的正则表达式的编写 
      Pattern pattern = Pattern.compile("(\\d{6})");
      Matcher matcher = pattern.matcher(messagE);

      if (matcher.find()) {
        code = matcher.group(0);
        mHandler.obtainmessage(MainActivity.MSG_RECEIVER_CODE,codE).send@R_53_10586@rget();
      }
    }

    cursor.close();
  }


}
}

<RelativeLayout xmlns:android="http://scheR_381_11845@as.android.com/apk/res/android"
xmlns:tools="http://scheR_381_11845@as.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity">


<EditText
  android:id="@+id/smsEt"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:layout_centerHorizontal="true"
  android:ems="10" />

</RelativeLayout>