Android项目实现黑名单拦截效果

本文实例讲述了android编程中黑名单的实现方法。分享给大家供大家参考，具体如下：

1,黑名单数据库创建

三个字段(_id 自增长字段 phone 黑名单号码 mode 拦截类型)

创建表的sql语句

create table blacknumber (_id integer primary key autoincrement , phone varchar(20), mode varchar(5));

结合项目,去创建数据库,以及相应的表

2.blacknumberdao

blacknumberdao单例模式

package com.itheima.mobilesafe74.db.dao;

import java.util.arraylist;
import java.util.list;

import android.content.contentvalues;
import android.content.context;
import android.database.cursor;
import android.database.sqlite.sqlitedatabase;

import com.itheima.mobilesafe74.db.blacknumberopenhelper;
import com.itheima.mobilesafe74.db.domain.blacknumberinfo;

public class blacknumberdao {
  private blacknumberopenhelper blacknumberopenhelper;
  //blacknumberdao单例模式
  //1,私有化构造方法
  private blacknumberdao(context context){
    //创建数据库已经其表机构
    blacknumberopenhelper = new blacknumberopenhelper(context);
  }
  //2,声明一个当前类的对象
  private static blacknumberdao blacknumberdao = null;
  //3,提供一个静态方法,如果当前类的对象为空,创建一个新的
  public static blacknumberdao getinstance(context context){
    if(blacknumberdao == null){
      blacknumberdao = new blacknumberdao(context);
    }
    return blacknumberdao;
  }
  
  /**增加一个条目
   * @param phone  拦截的电话号码
   * @param mode  拦截类型(1:短信  2:电话  3:拦截所有(短信+电话))
   */
  public void insert(string phone,string mode){
    //1,开启数据库,准备做写入操作
    sqlitedatabase db = blacknumberopenhelper.getwritabledatabase();

    contentvalues values = new contentvalues();
    values.put("phone", phone);
    values.put("mode", mode);
    db.insert("blacknumber", null, values);
    
    db.close();
  }
  
  /**从数据库中删除一条电话号码
   * @param phone  删除电话号码
   */
  public void delete(string phone){
    sqlitedatabase db = blacknumberopenhelper.getwritabledatabase();

    db.delete("blacknumber", "phone = ?", new string[]{phone});
    
    db.close();
  }
  
  /**
   * 根据电话号码去,更新拦截模式
   * @param phone  更新拦截模式的电话号码
   * @param mode  要更新为的模式(1:短信  2:电话  3:拦截所有(短信+电话)
   */
  public void update(string phone,string mode){
    sqlitedatabase db = blacknumberopenhelper.getwritabledatabase();

    contentvalues contentvalues = new contentvalues();
    contentvalues.put("mode", mode);
    
    db.update("blacknumber", contentvalues, "phone = ?", new string[]{phone});
    
    db.close();
  }
  
  /**
   * @return  查询到数据库中所有的号码以及拦截类型所在的集合
   */
  public list<blacknumberinfo> findall(){
    sqlitedatabase db = blacknumberopenhelper.getwritabledatabase();

    cursor cursor = db.query("blacknumber", new string[]{"phone","mode"}, null, null, null, null, "_id desc");
    list<blacknumberinfo> blacknumberlist = new arraylist<blacknumberinfo>();
    while(cursor.movetonext()){
      blacknumberinfo blacknumberinfo = new blacknumberinfo();
      blacknumberinfo.phone = cursor.getstring(0);
      blacknumberinfo.mode = cursor.getstring(1);
      blacknumberlist.add(blacknumberinfo);
    }
    cursor.close();
    db.close();
    
    return blacknumberlist;
  }
  
  /**
   * 每次查询20条数据
   * @param index  查询的索引值
   */
  public list<blacknumberinfo> find(int index){
    sqlitedatabase db = blacknumberopenhelper.getwritabledatabase();

    cursor cursor = db.rawquery("select phone,mode from blacknumber order by _id desc limit ?,20;", new string[]{index+""});
    
    list<blacknumberinfo> blacknumberlist = new arraylist<blacknumberinfo>();
    while(cursor.movetonext()){
      blacknumberinfo blacknumberinfo = new blacknumberinfo();
      blacknumberinfo.phone = cursor.getstring(0);
      blacknumberinfo.mode = cursor.getstring(1);
      blacknumberlist.add(blacknumberinfo);
    }
    cursor.close();
    db.close();
    
    return blacknumberlist;
  }
  
  /**
   * @return  数据库中数据的总条目个数,返回0代表没有数据或异常
   */
  public int getcount(){
    sqlitedatabase db = blacknumberopenhelper.getwritabledatabase();
    int count = 0;
    cursor cursor = db.rawquery("select count(*) from blacknumber;", null);
    if(cursor.movetonext()){
      count = cursor.getint(0);
    }
    
    cursor.close();
    db.close();
    return count;
  }
  
  /**
   * @param phone  作为查询条件的电话号码
   * @return  传入电话号码的拦截模式  1:短信  2:电话  3:所有  0:没有此条数据
   */
  public int getmode(string phone){
    sqlitedatabase db = blacknumberopenhelper.getwritabledatabase();
    int mode = 0;
    cursor cursor = db.query("blacknumber", new string[]{"mode"}, "phone = ?", new string[]{phone}, null, null,null);
    if(cursor.movetonext()){
      mode = cursor.getint(0);
    }
    
    cursor.close();
    db.close();
    return mode;
  }
}

3,加载更多的触发条件

1. 监听状态改变
2. 滚动到最底部,最后一个listview的条目可见
3. 滚动状态发生改变 滚动------>停止(空闲)

加载下一页数据完成后,需要添加到上一页数据的最后面

//监听其滚动状态
lv_blacknumber.setonscrolllistener(new onscrolllistener() {
  //滚动过程中,状态发生改变调用方法()
  @override
  public void onscrollstatechanged(abslistview view, int scrollstate) {
//       onscrolllistener.scroll_state_fling 飞速滚动
//       onscrolllistener.scroll_state_idle  空闲状态
//       onscrolllistener.scroll_state_touch_scroll 拿手触摸着去滚动状态
     
    if(mblacknumberlist!=null){
      //条件一:滚动到停止状态
      //条件二:最后一个条目可见(最后一个条目的索引值>=数据适配器中集合的总条目个数-1)
      if(scrollstate == onscrolllistener.scroll_state_idle
          && lv_blacknumber.getlastvisibleposition()>=mblacknumberlist.size()-1
          && !misload){
        /*misload防止重复加载的变量
        如果当前正在加载misload就会为true,本次加载完毕后,再将misload改为false
        如果下一次加载需要去做执行的时候,会判断上诉misload变量,是否为false,如果为true,就需要等待上一次加载完成,将其值
        改为false后再去加载*/
         
        //如果条目总数大于集合大小的时,才可以去继续加载更多
        if(mcount>mblacknumberlist.size()){
          //加载下一页数据
          new thread(){
            public void run() {
              //1,获取操作黑名单数据库的对象
              mdao = blacknumberdao.getinstance(getapplicationcontext());
              //2,查询部分数据
              list<blacknumberinfo> moredata = mdao.find(mblacknumberlist.size());
              //3,添加下一页数据的过程
              mblacknumberlist.addall(moredata);
              //4,通知数据适配器刷新
              mhandler.sendemptymessage(0);
            }
          }.start();
        }
      }
    }
     
  }
   
  //滚动过程中调用方法
  @override
  public void onscroll(abslistview view, int firstvisibleitem,
      int visibleitemcount, int totalitemcount) {
     
  }
});

4.拦截短信

短信在接受的时候,广播发送,监听广播接受者,拦截短信(有序)
将广播的优先级级别提高到最高 (1000)

5.拦截电话

有电话拨入,处于响铃状态,响铃状态通过代码去挂断电话(aidl,反射),拦截电话
挂断电话号码的方法,放置在了aidl文件中名称为endcall

在此处去查看telephonemanager源码,去查找获取itelephony对象的方法

servicemanager此类android对开发者隐藏,所以不能去直接调用其方法,所以需要反射调用

itelephony.stub.asinterface(servicemanager.getservice(context.telephony_service));

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

//1,获取servicemanager字节码文件
class<?> clazz = class.forname("android.os.servicemanager");
//2,获取方法
method method = clazz.getmethod("getservice", string.class);
//3,反射调用此方法
ibinder ibinder = (ibinder) method.invoke(null, context.telephony_service);
//4,调用获取aidl文件对象方法
itelephony itelephony = itelephony.stub.asinterface(ibinder);
//5,调用在aidl中隐藏的endcall方法

blacknumberservice

itelephony.endcall();
package com.itheima.mobilesafe74.service;

import java.lang.reflect.invocationtargetexception;
import java.lang.reflect.method;

import com.android.internal.telephony.itelephony;
import com.itheima.mobilesafe74.db.dao.blacknumberdao;
import com.itheima.mobilesafe74.service.addressservice.myphonestatelistener;
import android.app.service;
import android.content.broadcastreceiver;
import android.content.context;
import android.content.intent;
import android.content.intentfilter;
import android.os.ibinder;
import android.telephony.phonestatelistener;
import android.telephony.smsmessage;
import android.telephony.telephonymanager;
import android.util.log;
import android.view.windowmanager;

public class blacknumberservice extends service {
  private innersmsreceiver minnersmsreceiver;
  private blacknumberdao mdao;
  private telephonymanager mtm;
  private myphonestatelistener mphonestatelistener;
  @override
  public void oncreate() {
    mdao = blacknumberdao.getinstance(getapplicationcontext());
    
    //拦截短信
    intentfilter intentfilter = new intentfilter();
    intentfilter.addaction("android.provider.telephony.sms_received");
    intentfilter.setpriority(1000);
    
    minnersmsreceiver = new innersmsreceiver();
    registerreceiver(minnersmsreceiver, intentfilter);
    
    //监听电话的状态
    //1,电话管理者对象
    mtm = (telephonymanager) getsystemservice(context.telephony_service);
    //2,监听电话状态
    mphonestatelistener = new myphonestatelistener();
    mtm.listen(mphonestatelistener, phonestatelistener.listen_call_state);
    
    super.oncreate();
  }
  
  class myphonestatelistener extends phonestatelistener{
    //3,手动重写,电话状态发生改变会触发的方法
    @override
    public void oncallstatechanged(int state, string incomingnumber) {
      switch (state) {
      case telephonymanager.call_state_idle:
        break;
      case telephonymanager.call_state_offhook:
        break;
      case telephonymanager.call_state_ringing:
        //挂断电话   aidl文件中去了
//        mtm.endcall();
        endcall(incomingnumber);
        break;
      }
      super.oncallstatechanged(state, incomingnumber);
    }
  }
  class innersmsreceiver extends broadcastreceiver{
    @override
    public void onreceive(context context, intent intent) {
      //获取短信内容,获取发送短信电话号码,如果此电话号码在黑名单中,并且拦截模式也为1(短信)或者3(所有),拦截短信
      //1,获取短信内容
      object[] objects = (object[]) intent.getextras().get("pdus");
      //2,循环遍历短信过程
      for (object object : objects) {
        //3,获取短信对象
        smsmessage sms = smsmessage.createfrompdu((byte[])object);
        //4,获取短信对象的基本信息
        string originatingaddress = sms.getoriginatingaddress();
        string messagebody = sms.getmessagebody();
        
        int mode = mdao.getmode(originatingaddress);
        
        if(mode == 1 || mode == 3){
          //拦截短信(android 4.4版本失效  短信数据库,删除)
          abortbroadcast();
        }
      }
    }
  }
  
  @override
  public ibinder onbind(intent arg0) {
    return null;
  }
  public void endcall(string phone) {
    int mode = mdao.getmode(phone);
    
    if(mode == 2 || mode == 3){
//      itelephony.stub.asinterface(servicemanager.getservice(context.telephony_service));
      //servicemanager此类android对开发者隐藏,所以不能去直接调用其方法,需要反射调用
      try {
        //1,获取servicemanager字节码文件
        class<?> clazz = class.forname("android.os.servicemanager");
        //2,获取方法
        method method = clazz.getmethod("getservice", string.class);
        //3,反射调用此方法
        ibinder ibinder = (ibinder) method.invoke(null, context.telephony_service);
        //4,调用获取aidl文件对象方法
        itelephony itelephony = itelephony.stub.asinterface(ibinder);
        //5,调用在aidl中隐藏的endcall方法
        itelephony.endcall();
      } catch (exception e) {
        e.printstacktrace();
      }
    }
  }
  @override
  public void ondestroy() {
    if(minnersmsreceiver!=null){
      unregisterreceiver(minnersmsreceiver);
    }
    super.ondestroy();
  }
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。