在一个布局文件里。假设定义了非常多非常多id，代码中一个个findview是一件非常枯燥而且浪费时间的事情。

所以这里向大家推荐一个必备插件android layout id converter。

配置完毕后仅仅须要在xml文件右键点击Convert android layout xml,然后在你activity中仅仅须要粘贴，就能够帮助你自己主动生成代码。例如以下这些就是自己主动生成的：

private WheelView wheelview;

private ScrollView scrollView1;

private LinearLayout vName;

private EditText etName;

private LinearLayout vMobile;

private EditText etMobile;

private EditText etCard;

private EditText etCarOwnerName;

private LinearLayout vCarOwnerMobile;

private EditText etCarOwnerMobile;

private EditText etInsuranceCompany;

private EditText etInsuranceNum;

private EditText etBank;

private EditText etBankNumber;

private RelativeLayout vCarType;

private AppCompatSpinner spCarType;

private EditText etCarTonnage;

private TextView tvCarNum;

private EditText etCarNum;

private LinearLayout vTrailerCarNum;

private TextView tvTrailerCarNum;

private EditText etTrailerCarNum;

private ImageView iv1;

private ImageView iv3;

private ImageView iv5;

private ImageView iv2;

private ImageView iv4;

private EditText etFamilyName;

private EditText etFamilyTel;

private EditText etRelation;

private Button btnSubmit;

private void assignViews() {

    wheelview = (WheelView) findViewById(R.id.wheelview);

    scrollView1 = (ScrollView) findViewById(R.id.scrollView1);

    vName = (LinearLayout) findViewById(R.id.v_name);

    etName = (EditText) findViewById(R.id.et_name);

    vMobile = (LinearLayout) findViewById(R.id.v_mobile);

    etMobile = (EditText) findViewById(R.id.et_mobile);

    etCard = (EditText) findViewById(R.id.et_card);

    etCarOwnerName = (EditText) findViewById(R.id.et_carOwnerName);

    vCarOwnerMobile = (LinearLayout) findViewById(R.id.v_carOwnerMobile);

    etCarOwnerMobile = (EditText) findViewById(R.id.et_carOwnerMobile);

    etInsuranceCompany = (EditText) findViewById(R.id.et_insuranceCompany);

    etInsuranceNum = (EditText) findViewById(R.id.et_insuranceNum);

    etBank = (EditText) findViewById(R.id.et_bank);

    etBankNumber = (EditText) findViewById(R.id.et_bankNumber);

    vCarType = (RelativeLayout) findViewById(R.id.v_carType);

    spCarType = (AppCompatSpinner) findViewById(R.id.sp_carType);

    etCarTonnage = (EditText) findViewById(R.id.et_car_tonnage);

    tvCarNum = (TextView) findViewById(R.id.tv_carNum);

    etCarNum = (EditText) findViewById(R.id.et_carNum);

    vTrailerCarNum = (LinearLayout) findViewById(R.id.v_trailerCarNum);

    tvTrailerCarNum = (TextView) findViewById(R.id.tv_trailerCarNum);

    etTrailerCarNum = (EditText) findViewById(R.id.et_trailerCarNum);

    iv1 = (ImageView) findViewById(R.id.iv1);

    iv3 = (ImageView) findViewById(R.id.iv3);

    iv5 = (ImageView) findViewById(R.id.iv5);

    iv2 = (ImageView) findViewById(R.id.iv2);

    iv4 = (ImageView) findViewById(R.id.iv4);

    etFamilyName = (EditText) findViewById(R.id.et_family_name);

    etFamilyTel = (EditText) findViewById(R.id.et_family_tel);

    etRelation = (EditText) findViewById(R.id.et_relation);

    btnSubmit = (Button) findViewById(R.id.btn_submit);

}