Android编程中黑名单的实现方法

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：

说明：由于挂断电话android   api不是对外开放的，所以需要使用反射的方法得到拨打电话的服务。

1.将android源代码中的"aidl"文件拷贝到项目中

这样项目中会生成两个包：android.telephony；此包中文件为：NeighboringCellInfo.aidl

com.android.internal.telephony;此包中文件为：ITelephony.aidl

2.通过反射挂断电话；代码如下：

/**
* 挂断电话
*/
public void endCall() {
try {
Method method = Class.forName("android.os.ServiceManager").getMethod("getService", String.class);
IBinder binder = (IBinder) method.invoke(null, new Object[]{TELEPHONY_SERVICE});
ITelephony telephony = ITelephony.Stub.asInterface(binder);
telephony.endCall();
} catch (Exception e) {
e.printStackTrace();
}
}

3.删除通话记录中的记录

/**
* 删除呼叫记录
*/
public void deleteCallLog(String incomingNumber) {
ContentResolver resolver = getContentResolver();
Cursor cursor = resolver.query(CallLog.Calls.CONTENT_URI, null,"number=?", new String[]{incomingNumber}, null);
if(cursor.moveToNext()){
String id = cursor.getString(cursor.getColumnIndex("_id"));
resolver.delete(CallLog.Calls.CONTENT_URI, "_id=?", new String[]{id});
}
}

4.直接这样调用是不能删除电话记录的，因为生成电话记录的过程是一个异步的过程，在挂断电话之后不能立即删除电话记录，所以这里要使用ContentObserver（内容观察者）

private class MyObserver extends ContentObserver{
private String incomingNumber;
public MyObserver(Handler handler,String incomingNumber) {
super(handler);
this.incomingNumber = incomingNumber;
}
@Override
public void onChange(boolean selfChange) {
super.onChange(selfChange);
deleteCallLog(incomingNumber);
getContentResolver().unregisterContentObserver(this);
}
}

6.最后把整个service代码贴到下面

public class AddressService extends Service{
private static final String TAG = "AddressService";
private TelephonyManager manager;
private MyPhoneListener listener;
private WindowManager wManager;
private View view;
private SharedPreferences sp;
long startTime = 0;
long endTime = 0;
private BlackNumberDao dao;
@Override
public IBinder onBind(Intent arg0) {
return null;
}
/**
* 服务第一次被创建的时候调用的方法
* 服务被初始化时调用的方法
*/
@Override
public void onCreate() {
super.onCreate();
listener = new MyPhoneListener();
manager = (TelephonyManager) getSystemService(TELEPHONY_SERVICE);
wManager = (WindowManager) this.getSystemService(WINDOW_SERVICE);
manager.listen(listener, PhoneStateListener.LISTEN_CALL_STATE);
sp = getSharedPreferences("config", MODE_PRIVATE);
dao = new BlackNumberDao(this);
//   if(3000>(endTime - startTime)){
//     String ns = Context.NOTIFICATION_SERVICE;
//     NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns);
//     //定义通知栏展现的内容信息
//     int icon = R.drawable.icon5;
//     CharSequence tickerText = "我的通知栏标题";
//     long when = System.currentTimeMillis();
//     Notification notification = new Notification(icon, tickerText, when);
//     //定义下拉通知栏时要展现的内容信息
//     Context context = getApplicationContext();
//     CharSequence contentTitle = "我的通知栏标展开标题";
//     CharSequence contentText = "我的通知栏展开详细内容";
//     Intent notificationIntent = new Intent(AddressService.this,BootStartDemo.class);
//     PendingIntent contentIntent = PendingIntent.getActivity(AddressService.this, 0,notificationIntent, 0);
//     notification.setLatestEventInfo(context, contentTitle, contentText,contentIntent);
//     //用mNotificationManager的notify方法通知用户生成标题栏消息通知
//     mNotificationManager.notify(1, notification);
//   }
}
/**
* 服务停止的时候调用
*/
@Override
public void onDestroy() {
super.onDestroy();
manager.listen(listener, PhoneStateListener.LISTEN_NONE);
listener = null;
}
private class MyPhoneListener extends PhoneStateListener{
/**
* 电话状态发生改变的时候调用的方法
*/
@Override
public void onCallStateChanged(int state, String incomingNumber) {
super.onCallStateChanged(state, incomingNumber);
switch (state) {
case TelephonyManager.CALL_STATE_IDLE:
if(null != view){
wManager.removeView(view);
view = null;
}
endTime = System.currentTimeMillis();
break;
case TelephonyManager.CALL_STATE_RINGING: // 零响状态
//判断number是否在黑名单中
if(dao.find(incomingNumber)){
//挂断电话
endCall();
//删除呼叫记录
//         deleteCallLog(incomingNumber);
ContentResolver resolver = getContentResolver();
resolver.registerContentObserver(CallLog.Calls.CONTENT_URI, true, new MyObserver(new Handler(),incomingNumber));
}
Log.i(TAG,"来电号码为"+ incomingNumber);
String address = NumberAddressService.getAddress(incomingNumber);
Log.i(TAG,"归属地为"+ address);
showLocation(address);
//获取当前系统的时间
startTime = System.currentTimeMillis();
break;
case TelephonyManager.CALL_STATE_OFFHOOK: //接通电话状态
break;
}
}
}
/**
* 在窗体上显示出来位置信息
* @param address
*/
public void showLocation(String address) {
WindowManager.LayoutParams params = new WindowManager.LayoutParams();
params.height = WindowManager.LayoutParams.WRAP_CONTENT;
params.width = WindowManager.LayoutParams.WRAP_CONTENT;
params.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
| WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE
| WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;
params.format = PixelFormat.TRANSLUCENT;
params.type = WindowManager.LayoutParams.TYPE_TOAST;
params.setTitle("Toast");
params.gravity = Gravity.LEFT | Gravity.TOP;
int x = sp.getInt("lastx", 0);
int y = sp.getInt("lasty", 0);
params.x = x;
params.y = y;
view = View.inflate(getApplicationContext(), R.layout.show_location, null);
LinearLayout ll_location = (LinearLayout) view.findViewById(R.id.ll_location);
TextView tv_location = (TextView) view.findViewById(R.id.tv_location);
int background = sp.getInt("background", 0);
if(0 == background){
ll_location.setBackgroundResource(R.drawable.call_locate_gray);
}else if(1 == background){
ll_location.setBackgroundResource(R.drawable.call_locate_orange);
}else {
ll_location.setBackgroundResource(R.drawable.call_locate_green);
}
tv_location.setText(address);
tv_location.setTextSize(24);
wManager.addView(view, params);
}
/**
* 删除呼叫记录
*/
public void deleteCallLog(String incomingNumber) {
ContentResolver resolver = getContentResolver();
Cursor cursor = resolver.query(CallLog.Calls.CONTENT_URI, null,"number=?", new String[]{incomingNumber}, null);
if(cursor.moveToNext()){
String id = cursor.getString(cursor.getColumnIndex("_id"));
resolver.delete(CallLog.Calls.CONTENT_URI, "_id=?", new String[]{id});
}
}/**
* 挂断电话
*/
public void endCall() {
try {
Method method = Class.forName("android.os.ServiceManager").getMethod("getService", String.class);
IBinder binder = (IBinder) method.invoke(null, new Object[]{TELEPHONY_SERVICE});
ITelephony telephony = ITelephony.Stub.asInterface(binder);
telephony.endCall();
} catch (Exception e) {
e.printStackTrace();
}
}private class MyObserver extends ContentObserver{
private String incomingNumber;
public MyObserver(Handler handler,String incomingNumber) {
super(handler);
this.incomingNumber = incomingNumber;
}
@Override
public void onChange(boolean selfChange) {
super.onChange(selfChange);
deleteCallLog(incomingNumber);
getContentResolver().unregisterContentObserver(this);
}
}
}

更多关于Android相关内容感兴趣的读者可查看本站专题：《Android开发入门与进阶教程》、《Android通信方式总结》、《Android基本组件用法总结》、《Android视图View技巧总结》、《Android布局layout技巧总结》及《Android控件用法总结》

希望本文所述对大家Android程序设计有所帮助。

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