[android] 手机卫士号码归属地查询完成

 

正则表达式完成号码验证，

^以某开头，[] 字符集（匹配中括号里面的任意字符），\d是任意一个数字，{n}表示出现了多少次，$结尾

 

手机号的正则 ^1[34568]\d{9}$，以1开头，第二个数字是34568，剩下九个都是数字，数字结尾

 

调用String对象的match()方法，参数：正则（里面的斜杠\需要转义）

        if (phone.matches("^1[34568]\\d{9}$")) {SQLiteDatabase db = SQLiteDatabase.openDatabase(path, null,SQLiteDatabase.OPEN_READONLY);Cursor cursor = db.rawQuery("select location from data2 where id=(select outkey from data1 where id=?)",new String[] { phone.substring(0, 7) });while (cursor.moveToNext()) {String address = cursor.getString(0);return address;}cursor.close();}

 

 

文本输入直接查询

调用EditText对象的addTextChangedListener()方法，添加监听器，参数：TextWatcher对象

匿名内部类实现TextWatcher接口，重写onTextChanged方法，传递进来CharSequence对象

查询数据库，并展示出结果

 

//自动完成et_phone.addTextChangedListener(new TextWatcher() {@Overridepublic void onTextChanged(CharSequence s, int arg1, int arg2, int arg3) {phone = et_phone.getText().toString().trim();String result = NumberQueryAddressUtil.queryAddress(phone);tv_address.setText(result);}@Overridepublic void beforeTextChanged(CharSequence arg0, int arg1, int arg2,int arg3) {// TODO Auto-generated method stub
                }@Overridepublic void afterTextChanged(Editable arg0) {// TODO Auto-generated method stub
                }});