如何在活动中访问String-array以进行用户名验证？

Question

我想创建一个android studio登录页面，使用存储在数组列表中的多个帐户。如何验证写入的用户名和密码是否与存储在arraylist中的用户名和密码相同继承我在res中的数组列表：<string-array name="user">     <item>admin</item>     <item>jhon</item></string-array><string-array name="pass">     <item>admin</item>     <item>littlejhon</item></string-array>这里是我的活动代码：import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.support.v7.widget. CardView;import android.view.View;import android.widget.EditText;import android.widget.Toast;     import java.util.HashMap;import java.util.Objects;public class PassActivity extends AppCompatActivity {     EditText username;     EditText password;     CardView card;     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_pass);         final String[] use = getResources().getStringArray(R.array.user);         final String[] pas = getResources().getStringArray(R.array.pass);         username = findViewById(R.id.username);         password = findViewById(R.id.password);         card     = findViewById(R.id.card);         card.setOnClickListener(new View.OnClickListener() {             @Override             public void onClick(View view) {                 if (Objects.equals(username.getText().toString(), use)                     &&                     Objects.equals(password.getText().toString(),pas))                 {                     Toast.makeText(                         PassActivity.this,                         "You have Authenticated Successfully",                         Toast.LENGTH_LONG)                     .show();                 }                 else {                     Toast.makeText(                         PassActivity.this,                         "Authentication Failed",                         Toast.LENGTH_LONG)                     .show();                 }             }         });     }}谢谢你的帮助，希望有人有这方面的经验。谢谢..

Answer 1

尝试下面的代码，

 public void onClick(View view) {

  final String[] UserArray= getResources().getStringArray(R.array.user);
  final String[] passArray= getResources().getStringArray(R.array.pas);

  String Username = username.getText().toString();
  String Password = password.getText().toString();

  if (Arrays.asList(UserArray).contains(Username) && Arrays.asList(passArray).contains(Password )) {
    // authenticate successfully
  }else{
     // authentication failed
   }}