Question

我的代码的目标是：当我输入密码用户名和密码时，按Enter按钮，打开一个Activity3。否则，打开Activity2。这是我的代码：
包edcomp.terraraimoveis;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.design.widget.TextInputLayout;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.inputmethod.EditorInfo;
import android.widget.AutoCompleteTextView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class Principal extends Activity implements OnClickListener {

    // UI references.
    private AutoCompleteTextView userName;
    private EditText mPasswordView;
    private TextInputLayout nameLayout;
    private TextInputLayout passLayout;

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

        userName = (AutoCompleteTextView) findViewById(R.id.username);
        //populateAutoComplete();
        mPasswordView = (EditText) findViewById(R.id.password);
        nameLayout = (TextInputLayout) findViewById(R.id.namelayout);
        passLayout = (TextInputLayout) findViewById(R.id.passlayout);
        Button entrarBtn = (Button) findViewById(R.id.entrarbtn);
        entrarBtn.setOnClickListener(this);

    }

    @Override
    public void onClick(View view) {

        if(validateData() == true){
            if(vipPass() == true){
                Intent myintent = new Intent(Principal.this, AdicionarCredenciais.class);
                Principal.this.startActivity(myintent);
            }else {
                Intent myintent = new Intent(Principal.this, DoisAtividade.class);
                Principal.this.startActivity(myintent);
            }
        }
    }

    public boolean validateData(){
        String nome = userName.getText().toString();
        String pass = mPasswordView.getText().toString();

        boolean result = true;

        if(nome == null){
            nameLayout.setError(getString(R.string.error_invalid_name));
            result = false;
        }else{
            nameLayout.setErrorEnabled(false);
        }

        if(pass == null || pass.length() < 8){
            passLayout.setError((getString(R.string.error_invalid_password)));
        result = false;
        }
        return result;
    }

    public boolean vipPass() {
        String nome = userName.getText().toString();
        String pass = mPasswordView.getText().toString();

        boolean vip_mode = false;
        if (nome == "VIPUSER" && pass == "987654321") {
            vip_mode = true;
        }
        return vip_mode;
    }
}

我在manifest.xml中添加了（活动android：name =＆＃34; .AdicionarCredenciais＆＃34;）和（activity android：name =＆＃34; .DoisAtividade＆＃34;）。但是，当我输入秘密用户名和密码，然后按Enter键，下一个活动就不是我想要的了。

Answer 1

问题略微在你的if语句中，试试这个：

 import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.design.widget.TextInputLayout;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.inputmethod.EditorInfo;
import android.widget.AutoCompleteTextView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class Principal extends Activity implements OnClickListener {

    // UI references.
    private AutoCompleteTextView userName;
    private EditText mPasswordView;
    private TextInputLayout nameLayout;
    private TextInputLayout passLayout;

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

        userName = (AutoCompleteTextView) findViewById(R.id.username);
        //populateAutoComplete();
        mPasswordView = (EditText) findViewById(R.id.password);
        nameLayout = (TextInputLayout) findViewById(R.id.namelayout);
        passLayout = (TextInputLayout) findViewById(R.id.passlayout);
        Button entrarBtn = (Button) findViewById(R.id.entrarbtn);
        entrarBtn.setOnClickListener(this);

    }

    @Override
    public void onClick(View view) {

        if(validateData() == true){
                          Intent myintent = new Intent(Principal.this, AdicionarCredenciais.class);
                Principal.this.startActivity(myintent);
            }else  
if(vipPass() == true){
                Intent myintent = new Intent(Principal.this, DoisAtividade.class);
                Principal.this.startActivity(myintent);
            }
        }
    }

    public boolean validateData(){
        String nome = userName.getText().toString();
        String pass = mPasswordView.getText().toString();

        boolean result = true;

        if(nome == null){
            nameLayout.setError(getString(R.string.error_invalid_name));
            result = false;
        }else{
            nameLayout.setErrorEnabled(false);
        }

        if(pass == null || pass.length() < 8){
            passLayout.setError((getString(R.string.error_invalid_password)));
        result = false;
        }
        return result;
    }

    public boolean vipPass() {
        String nome = userName.getText().toString();
        String pass = mPasswordView.getText().toString();

        boolean vip_mode = false;
        if (nome == "VIPUSER" && pass == "987654321") {
            vip_mode = true;
        }
        return vip_mode;
    }
}

方法2：

转到这两个活动并检查是否确实将内容视图设置为正确的布局，您可能已为这两个活动使用相同的布局。

Answer 2

尝试使用此代码

public boolean vipPass() {
        String nome = userName.getText().toString();
        String pass = mPasswordView.getText().toString();

        if (nome.equals("VIPUSER") && pass.equals("987654321")) {
            return true;
        }
        return false;
    }

秘密登录密码 - Android

2 个答案: