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[操作系统][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              }    });