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   源码介绍

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package com.bao;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class LoginActivity extends Activity {
    /** Called when the activity is first created. */

private EditText username;
private EditText password;
private Button login;
private Button reset;
UserManager userManager;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        username = (EditText)findViewById(R.id.username);
        password = (EditText)findViewById(R.id.password);
        login = (Button)findViewById(R.id.login);
        reset = (Button)findViewById(R.id.reset);
        userManager = new UserManager();
        login.setOnClickListener(new OnClickListener() {

public void onClick(View v) {
// TODO Auto-generated method stub
boolean isSuccess = userManager.isRightUser(username.getText().toString(), password.getText().toString());
if(isSuccess == true){
Toast.makeText(LoginActivity.this, "登陆成功", Toast.LENGTH_LONG).show();
}else{
Toast.makeText(LoginActivity.this, "密码或用户名错误", Toast.LENGTH_LONG).show();

}
}
});
        
        reset.setOnClickListener(new OnClickListener() {

public void onClick(View v) {
// TODO Auto-generated method stub
username.setText("");
password.setText("");
}
});
    
    }
}