Android实现短信加密功能（发送加密短信、解密本地短信）

import android.app.Activity; 
import android.content.Intent; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.Button; 
 
public class MainActivity extends Activity { 
 
 @Override 
 protected void onCreate(Bundle savedInstanceState) { 
 super.onCreate(savedInstanceState); 
 setContentView(R.layout.activity_main); 
 
 InitView(); 
 } 
 
 private void InitView() { 
 Button send=(Button)findViewById(R.id.bt_send); 
 Button receive=(Button)findViewById(R.id.bt_receive); 
 
 send.setOnClickListener(new View.OnClickListener() { 
  @Override 
  public void onClick(View view) { 
  Intent intent=new Intent(MainActivity.this,SendActivity.class); 
  startActivity(intent); 
  } 
 }); 
 
 receive.setOnClickListener(new View.OnClickListener() { 
  @Override 
  public void onClick(View view) { 
  Intent intent=new Intent(MainActivity.this,ReceiveActivity.class); 
  startActivity(intent); 
  } 
 }); 
 } 
} 

import android.app.Activity; 
import android.app.PendingIntent; 
import android.content.BroadcastReceiver; 
import android.content.Context; 
import android.content.Intent; 
import android.content.IntentFilter; 
import android.os.Bundle; 
import android.telephony.SmsManager; 
import android.util.Log; 
import android.view.View; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.Toast; 
 
/** 
 * Created by 佳佳 on 2015/12/21. 
 */ 
public class SendActivity extends Activity { 
 
 private IntentFilter sendFilter; 
 private SendStatusReceiver sendStatusReceiver; 
 
 @Override 
 protected void onCreate(Bundle savedInstanceState) { 
 super.onCreate(savedInstanceState); 
 setContentView(R.layout.activity_send); 
 
 InitView(); 
 } 
 
 private void InitView() { 
 Button cancel = (Button) findViewById(R.id.cancel_edit); 
 Button send = (Button) findViewById(R.id.send_edit); 
 final EditText phOne= (EditText) findViewById(R.id.phone_edit_text); 
 final EditText msgInput = (EditText) findViewById(R.id.content_edit_text); 
 
 //为发送短信设置要监听的广播 
 sendFilter = new IntentFilter(); 
 sendFilter.addAction("SENT_SMS_ACTION"); 
 sendStatusReceiver = new SendStatusReceiver(); 
 registerReceiver(sendStatusReceiver, sendFilter); 
 
 send.setOnClickListener(new View.OnClickListener() { 
  @Override 
  public void onClick(View v) { 
  Toast.makeText(SendActivity.this, "加密发送中，请稍后...", Toast.LENGTH_SHORT).show(); 
  //接收edittext中的内容,并且进行加密 
  //倘若char+8超出了表示范围，则把原字符发过去 
  String address = phone.getText().toString(); 
  String cOntent= msgInput.getText().toString(); 
  String cOntents= ""; 
  for (int i = 0; i 

import android.app.Activity; 
import android.content.Intent; 
import android.database.Cursor; 
import android.net.Uri; 
import android.os.Bundle; 
import android.util.Log; 
import android.view.View; 
import android.widget.AdapterView; 
import android.widget.ListView; 
import android.widget.SimpleAdapter; 
import android.widget.TextView; 
 
import java.text.SimpleDateFormat; 
import java.util.ArrayList; 
import java.util.Date; 
import java.util.HashMap; 
import java.util.List; 
import java.util.Map; 


public class ReceiveActivity extends Activity implements AdapterView.OnItemClickListener{ 
 private TextView Tv_address; 
 private TextView Tv_body; 
 private TextView Tv_time; 
 private ListView listview; 
 private List> dataList; 
 private SimpleAdapter simple_adapter; 
 
 @Override 
 protected void onCreate(Bundle savedInstanceState) { 
 super.onCreate(savedInstanceState); 
 setContentView(R.layout.activity_receive); 
 
 InitView(); 
 } 
 
 @Override 
 protected void onStart() { 
 super.onStart(); 
 RefreshList(); 
 } 
 
 
 private void InitView() { 
 Tv_address = (TextView) findViewById(R.id.tv_address); 
 Tv_body = (TextView) findViewById(R.id.tv_body); 
 Tv_time = (TextView) findViewById(R.id.tv_time); 
 listview = (ListView) findViewById(R.id.list_receive); 
 dataList = new ArrayList>(); 
 
 listview.setOnItemClickListener(this); 
 } 
 
 private void RefreshList() { 
 //从短信数据库读取信息 
 Uri uri = Uri.parse("content://sms/"); 
 String[] projection = new String[]{"address", "body", "date"}; 
 Cursor cursor = getContentResolver().query(uri, projection, null, null, "date desc"); 
 startManagingCursor(cursor); 
 
 //此处为了简化代码提高效率，仅仅显示20条最近短信 
 for (int i = 0; i <20; i++) { 
  //从手机短信数据库获取信息 
  if(cursor.moveToNext()) { 
  String address = cursor.getString(cursor.getColumnIndex("address")); 
  String body = cursor.getString(cursor.getColumnIndex("body")); 
  long lOngDate= cursor.getLong(cursor.getColumnIndex("date")); 
  //将获取到的时间转换为我们想要的方式 
  SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss"); 
  Date d = new Date(longDate); 
  String time = dateFormat.format(d); 
 
 
  Map map = new HashMap(); 
  map.put("address", address); 
  map.put("body", body+"body"); 
  map.put("time", time+" time"); 
  dataList.add(map); 
  } 
 } 
 
 simple_adapter = new SimpleAdapter(this, dataList, R.layout.activity_receive_list_item, 
  new String[]{"address", "body", "time"}, new int[]{ 
  R.id.tv_address, R.id.tv_body, R.id.tv_time}); 
 listview.setAdapter(simple_adapter); 
 } 
 
 @Override 
 public void onItemClick(AdapterView<&＃63;> adapterView, View view, int i, long l) { 
 //获取listview中此个item中的内容 
 //content的内容格式如下 
 //{body=[B@43c2da70body, address=+8615671562394address, time=2015-12-24 11:55:50time} 
 String cOntent= listview.getItemAtPosition(i) + ""; 
 String body = content.substring(content.indexOf("body=") + 5, 
  content.indexOf("body,")); 
 //Log.i("hahaha",body); 
 String address = content.substring(content.indexOf("address=") + 8, 
  content.lastIndexOf(",")); 
 //Log.i("hahaha",address); 
 String time = content.substring(content.indexOf("time=") + 5, 
  content.indexOf(" time}")); 
 //Log.i("hahaha",time); 
 
 //使用bundle存储数据发送给下一个Activity 
 Intent intent=new Intent(ReceiveActivity.this,ReceiveActivity_show.class); 
 Bundle bundle = new Bundle(); 
 bundle.putString("body", body); 
 bundle.putString("address", address); 
 bundle.putString("time", time); 
 intent.putExtras(bundle); 
 startActivity(intent); 
 
 } 
} 

import android.app.Activity; 
import android.os.Bundle; 
import android.widget.TextView; 
 
public class ReceiveActivity_show extends Activity { 
 private TextView Address_show; 
 private TextView Time_show; 
 private TextView Early_body_show; 
 private TextView Late_body_show; 
 
 @Override 
 protected void onCreate(Bundle savedInstanceState) { 
 super.onCreate(savedInstanceState); 
 setContentView(R.layout.activity_receive_show); 
 
 InitView(); 
 } 
 
 private void InitView() { 
 
 Address_show = (TextView) findViewById(R.id.address_show); 
 Time_show = (TextView) findViewById(R.id.time_show); 
 Early_body_show = (TextView) findViewById(R.id.early_body_show); 
 Late_body_show = (TextView) findViewById(R.id.late_body_show); 
 
 //接收内容和id 
 Bundle bundle = this.getIntent().getExtras(); 
 String body = bundle.getString("body"); 
 String time = bundle.getString("time"); 
 String address = bundle.getString("address"); 
 
 
 Address_show.setText(address); 
 Early_body_show.setText(body); 
 Time_show.setText(time); 
 
 //对短信消息进行解密后显示在textview中 
 //倘若char+8超出了表示范围，则直接按照原字符解析 
 String real_cOntent= ""; 
 for (int i = 0; i 

<&＃63;xml version="1.0" encoding="utf-8"&＃63;> 
 
 
 
  
  
  
 
 

<&＃63;xml version="1.0" encoding="utf-8"&＃63;> 
 
 
 
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
   
 
   
  
  
 

<&＃63;xml version="1.0" encoding="utf-8"&＃63;> 
 
 
  
 
  
 
 

<&＃63;xml version="1.0" encoding="utf-8"&＃63;>