[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() {

            @Override
            public 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);
            }

            @Override
            public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
                    int arg3) {
                // TODO Auto-generated method stub

            }

            @Override
            public void afterTextChanged(Editable arg0) {
                // TODO Auto-generated method stub

            }
        });