編輯:關於Android編程
本文實例講述了Android編程中黑名單的實現方法。分享給大家供大家參考,具體如下:
說明:由於掛斷電話android api不是對外開放的,所以需要使用反射的方法得到撥打電話的服務。
1.將android源代碼中的"aidl"文件拷貝到項目中
這樣項目中會生成兩個包:android.telephony;此包中文件為:NeighboringCellInfo.aidl
com.android.internal.telephony;此包中文件為:ITelephony.aidl
2.通過反射掛斷電話;代碼如下:
/** * 掛斷電話 */ 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.刪除通話記錄中的記錄
/** * 刪除呼叫記錄 */ 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.直接這樣調用是不能刪除電話記錄的,因為生成電話記錄的過程是一個異步的過程,在掛斷電話之後不能立即刪除電話記錄,所以這裡要使用ContentObserver(內容觀察者)
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.最後把整個service代碼貼到下面
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; } /** * 服務第一次被創建的時候調用的方法 * 服務被初始化時調用的方法 */ @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); // //定義通知欄展現的內容信息 // int icon = R.drawable.icon5; // CharSequence tickerText = "我的通知欄標題"; // long when = System.currentTimeMillis(); // Notification notification = new Notification(icon, tickerText, when); // //定義下拉通知欄時要展現的內容信息 // Context context = getApplicationContext(); // CharSequence contentTitle = "我的通知欄標展開標題"; // CharSequence contentText = "我的通知欄展開詳細內容"; // 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方法通知用戶生成標題欄消息通知 // mNotificationManager.notify(1, notification); // } } /** * 服務停止的時候調用 */ @Override public void onDestroy() { super.onDestroy(); manager.listen(listener, PhoneStateListener.LISTEN_NONE); listener = null; } private class MyPhoneListener extends PhoneStateListener{ /** * 電話狀態發生改變的時候調用的方法 */ @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: // 零響狀態 //判斷number是否在黑名單中 if(dao.find(incomingNumber)){ //掛斷電話 endCall(); //刪除呼叫記錄 // deleteCallLog(incomingNumber); ContentResolver resolver = getContentResolver(); resolver.registerContentObserver(CallLog.Calls.CONTENT_URI, true, new MyObserver(new Handler(),incomingNumber)); } Log.i(TAG,"來電號碼為"+ incomingNumber); String address = NumberAddressService.getAddress(incomingNumber); Log.i(TAG,"歸屬地為"+ address); showLocation(address); //獲取當前系統的時間 startTime = System.currentTimeMillis(); break; case TelephonyManager.CALL_STATE_OFFHOOK: //接通電話狀態 break; } } } /** * 在窗體上顯示出來位置信息 * @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); } /** * 刪除呼叫記錄 */ 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}); } } /** * 掛斷電話 */ 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); } } }
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