Java if语句的计算结果从未为true
我有一个活动，要求用户输入用户名和密码，系统将比较用户的输入是否等于我输入的用户名和密码 但问题是，即使用户的输入正确，系统也总是显示一个toast，上面写着用户名和密码错误。如何解决这个问题 有人能帮我吗 SecondActivity.javaJava if语句的计算结果从未为true,java,android,android-intent,if-statement,Java,Android,Android Intent,If Statement,我有一个活动，要求用户输入用户名和密码，系统将比较用户的输入是否等于我输入的用户名和密码 但问题是，即使用户的输入正确，系统也总是显示一个toast，上面写着用户名和密码错误。如何解决这个问题 有人能帮我吗 SecondActivity.java public class SecondActivity extends Activity implements OnClickListener { // for test the username and password Strin
public class SecondActivity extends Activity implements OnClickListener {
// for test the username and password
String username = "georges";
String pass = "password";
String username1;
String pass1;
Button btn_sign, btn_register;
RadioGroup rdg;
RadioButton rd_s, rd_o;
EditText edit_txt_name, edit_txt_password, edit_txt_o_pass;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);
edit_txt_name = (EditText) findViewById(R.id.editTxtName);
username1 = edit_txt_name.getText().toString();
// Toast.makeText(this, username,Toast.LENGTH_SHORT).show();
edit_txt_password = (EditText) findViewById(R.id.editTxtPass);
pass1 = edit_txt_password.getText().toString();
// Toast.makeText(this, pass, Toast.LENGTH_SHORT).show();
edit_txt_o_pass = (EditText) findViewById(R.id.edittxtOPass);
btn_register = (Button) findViewById(R.id.btnRegister);
btn_register.setOnClickListener(this);
btn_sign = (Button) findViewById(R.id.btnSingIN);
btn_sign.setOnClickListener(this);
rdg = (RadioGroup) findViewById(R.id.rdg);
rdg.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup arg0, int arg1) {
// TODO Auto-generated method stub
if (rd_o.isChecked()) {
edit_txt_o_pass.setVisibility(View.VISIBLE);
}
}
});
rd_s = (RadioButton) findViewById(R.id.rdS);
rd_o = (RadioButton) findViewById(R.id.rdO);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.second, menu);
return true;
}
/*
* /if the user click button sign in and choose o the system will pop
* up a edit text that ask the user to enter the key to approve that he is
* an o and the the system will display the activities and pages that
* belong to the o, else the user choose so and the the system
* will display the activities and pages that belong to the so else the
* user click the register button and the system display the register
* layoyt.
*/
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if (v.getId() == R.id.btnSingIN) {
if (rdg.getCheckedRadioButtonId() == R.id.rdS) {
SignIn(username1, pass1);
/*
* if (username.equals("georges") && pass.equals("password")) {
*
* Log.e("username and pasword", username + pass); Intent
* i_sign_s = new Intent(this, SignSoldgerActivity.class);
* startActivity(i_sign_s);
*
* } else { Toast.makeText(this, username + pass,
* Toast.LENGTH_LONG).show(); }
}
private void SignIn(String username2, String pass2) { // TODO
// Auto-generated method stub
if (username2.equals(username) && pass2.equals(pass)) {
Toast.makeText(this, username1 + "and" + pass1, Toast.LENGTH_LONG)
.show();
// Intent i_sign_soldger = new Intent(this,
// SignSoldgerActivity.class);
// startActivity(i_sign_soldger);
} else {
Toast.makeText(this, "Error!!!!" + username1 + pass1, Toast.LENGTH_LONG).show();
}
Log.e("username and pasword", username + pass);
}
}
问题在于，当活动开始时，您将
EditTextusername1pass1getText（）.toString（）”“georges”“password”onClick@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if (v.getId() == R.id.btnSingIN) {
if (rdg.getCheckedRadioButtonId() == R.id.rdS) {
String username1 = edit_txt_name.getText().toString();
String pass1 = edit_txt_password.getText().toString();
SignIn(username1, pass1);
}
问题在于，当活动开始时，您将
EditTextusername1pass1getText（）.toString（）”“georges”“password”onClick@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if (v.getId() == R.id.btnSingIN) {
if (rdg.getCheckedRadioButtonId() == R.id.rdS) {
String username1 = edit_txt_name.getText().toString();
String pass1 = edit_txt_password.getText().toString();
SignIn(username1, pass1);
}
问题在于，当活动开始时，您将
EditTextusername1pass1getText（）.toString（）”“georges”“password”onClick@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if (v.getId() == R.id.btnSingIN) {
if (rdg.getCheckedRadioButtonId() == R.id.rdS) {
String username1 = edit_txt_name.getText().toString();
String pass1 = edit_txt_password.getText().toString();
SignIn(username1, pass1);
}
问题在于，当活动开始时，您将
EditTextusername1pass1getText（）.toString（）”“georges”“password”onClick@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if (v.getId() == R.id.btnSingIN) {
if (rdg.getCheckedRadioButtonId() == R.id.rdS) {
String username1 = edit_txt_name.getText().toString();
String pass1 = edit_txt_password.getText().toString();
SignIn(username1, pass1);
}
谢谢，先生，用户的输入为空，因为在oncreate中method@user3006788是的，当你点击按钮时，你需要获得用户名并通过。现在应该可以了。谢谢，先生，用户的输入为空，因为在oncreate中method@user3006788是的，当你点击按钮时，你需要获得用户名并通过。现在应该可以了。谢谢，先生，用户的输入为空，因为在oncreate中method@user3006788是的，当你点击按钮时，你需要获得用户名并通过。现在应该可以了。谢谢，先生，用户的输入为空，因为在oncreate中method@user3006788是的，当你点击按钮时，你需要获得用户名并通过。现在应该可以了。您的代码缺少可用的
signsignsignsign