Validation 转到其他活动时单击验证错误

我对android编程很陌生，我不知道这里有什么问题。 我有一个注册表格，在发送注册信息和参加其他活动之前进行验证。若为false，则表单验证有效，但当输入所有字段时，当我单击按钮时会出现错误

Java代码：

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Patterns;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class registracijaLastnika extends AppCompatActivity {

EditText etName;
EditText etSurname;
EditText etPasswordL;
EditText etUsernameL;
EditText etEmailL;
EditText etRepeatPasswordL;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_registracija_lastnika);

    etName = (EditText) findViewById(R.id.etIme);
    etSurname = (EditText) findViewById(R.id.etPriimek);
    etPasswordL = (EditText) findViewById(R.id.etPasswordL);
    etUsernameL = (EditText) findViewById(R.id.etUsernameL);
    etEmailL = (EditText) findViewById(R.id.etEmailL);
    etRepeatPasswordL = (EditText) findViewById(R.id.etRepeatPasswordL);
    final Button bRegisterL = (Button) findViewById(R.id.bRegisterL);
    bRegisterL.setOnClickListener(new View.OnClickListener() {


        @Override
        public void onClick(View v) {
            String type = "regLas";
            String ime = etName.getText().toString();
            String priimek = etSurname.getText().toString();
            String uporabnisko_ime = etUsernameL.getText().toString();
            String geslo = etPasswordL.getText().toString();
            String email = etEmailL.getText().toString();



            validate();
            if(!validate()) {
                Toast.makeText(getApplicationContext(),  "Signup has     Failed",Toast.LENGTH_SHORT).show();
            }
            else {
                BackgroundWorker backgroundWorker = new     BackgroundWorker(getApplicationContext());
                backgroundWorker.execute(type, ime, priimek,   uporabnisko_ime, geslo, email);
                Intent registerIntent = new Intent(registracijaLastnika.this, registracijaKavarne.class);
                registracijaLastnika.this.startActivity(registerIntent);
            }

        }
    });}
 public boolean validate(){
    boolean valid = true;
    if(etName.length()<1 || etName.length()>32){
        etName.setError("Please enter valid name");
        valid = false;
    }
    if(etSurname.length()<1 || etSurname.length()>32){
        etSurname.setError("Please enter valid name");
        valid = false;
    }
    if(etEmailL.length()<1 || !Patterns.EMAIL_ADDRESS.matcher((CharSequence)   etEmailL).matches()){
        etEmailL.setError("Please enter valid email address");
        valid = false;
    }
    if(etPasswordL.length()<1){
        etPasswordL.setError("Please enter valid password");
        valid = false;
    }
    if(etRepeatPasswordL.length()<1){
        etRepeatPasswordL.setError("Please enter valid password");
        valid = false;
    }
    if(!etRepeatPasswordL.equals(etPasswordL)){
        etPasswordL.setError("Passwords don't match!");
        valid = false;
    }
    if(etUsernameL.length()<1 || etUsernameL.length()>32){
        etUsernameL.setError("Please enter valid name");
        valid = false;
    }
    return valid;
}
}

这里是错误

E/AndroidRuntime: FATAL EXCEPTION: main
              Process: com.example.lipic.coffeeaddict, PID: 3234
              java.lang.ClassCastException: android.support.v7.widget.AppCompatEditText cannot be cast to java.lang.CharSequence
                  at com.example.lipic.coffeeaddict.registracijaLastnika.validate(registracijaLastnika.java:76)
                  at  com.example.lipic.coffeeaddict.registracijaLastnika$1.onClick(registracijaLastnika.java:53)
                  at android.view.View.performClick(View.java:5610)
                  at android.view.View$PerformClick.run(View.java:22265)
                  at android.os.Handler.handleCallback(Handler.java:751)
                  at android.os.Handler.dispatchMessage(Handler.java:95)
                  at android.os.Looper.loop(Looper.java:154)
                  at android.app.ActivityThread.main(ActivityThread.java:6077)
                  at java.lang.reflect.Method.invoke(Native Method)
                  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
                  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)

申请终止

---

谢谢你的帮助

我认为问题在于验证方法

if(etName.length()<1 || etName.length()>32){
    etName.setError("Please enter valid name");
    valid = false;
}

---

查看验证方法中的所有其他if条件并进行更改。

我认为问题出在验证方法中

if(etName.length()<1 || etName.length()>32){
    etName.setError("Please enter valid name");
    valid = false;
}

检查验证方法和变更中的所有其他if条件

if(etName.length()<1 || etName.length()>32){
    etName.setError("Please enter valid name");
    valid = false;
}

etName.getText().length()