Android ：短信验证码自动填写-v2

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.jikexueyuan.validatecode" >

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

<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>

</manifest>

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

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

<resources>
<!-- Default screen margins, per the Android Design guidelines. -->
<dimen name="activity_horizontal_margin">16dp</dimen>
<dimen name="activity_vertical_margin">16dp</dimen>
</resources>

<resources>
<string name="app_name">ValidateCode</string>

<string name="hello_world">Hello world!</string>
<string name="action_settings">Settings</string>
</resources>

<resources>

<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
</style>

</resources>

package com.baidu.validatecode;

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

public class MainActivity extends AppCompatActivity {

public static final int MSG_RECEIVED_CODE = 1;

private EditText et_ValidateCode = null;

private SmsObserver mObserver;
private Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
if (msg.what == MSG_RECEIVED_CODE) {
String code = (String)msg.obj;
//update the UI
et_ValidateCode.setText(code);
}
}
};

@Override
protected void onPause() {
super.onPause();
getContentResolver().unregisterContentObserver(mObserver);
}

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

et_ValidateCode = (EditText)findViewById(R.id.et_validateCode);

mObserver = new SmsObserver(MainActivity.this, mHandler);
Uri uri = Uri.parse("content://sms");
getContentResolver().registerContentObserver(uri, true, mObserver);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();

//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}

return super.onOptionsItemSelected(item);
}
}

package com.baidu.validatecode;

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;

public class SmsObserver extends ContentObserver {

private Context mContext;
private Handler mHandler;

public SmsObserver(Context context, Handler handler) {
super(handler);
mContext = context;
mHandler = handler;
}

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

Log.e("DEBUG", "SMS has changed!");
Log.e("DEBUG", uri.toString());

String code = "";

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

Uri inboxUri = Uri.parse("content://sms/inbox");
Cursor c = mContext.getContentResolver().query(inboxUri, null, null, null, "date desc");
if (c != null) {
if (c.moveToFirst()) {
String address = c.getString(c.getColumnIndex("address"));
String body = c.getString(c.getColumnIndex("body"));

if (!address.equals("15555215556")) {
return;
}

Log.e("DEBUG", "发件人为：" + address + " " + "短信内容为：" + body);

Pattern pattern = Pattern.compile("(\\d{6})");
Matcher matcher = pattern.matcher(body);

if (matcher.find()) {
code = matcher.group(0);
Log.e("DEBUG", "code is " + code);

mHandler.obtainMessage(MainActivity.MSG_RECEIVED_CODE, code).sendToTarget();
}

}
c.close();
}

}
}