android activity之间传值 示例源码(入门级)

【实例简介】实现简单的android的登录界面

【实例截图】

【核心代码】

package com.example.administrator.myapplication;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.Toast;
public class RegisterActivity extends Activity {
    private Button regButton;
    private EditText nameEdit;
    private EditText passwdEdit;
    private RadioButton maleButton;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_register);
        regButton = (Button) findViewById(R.id.register_now);
        nameEdit = (EditText) findViewById(R.id.name_edit);
        passwdEdit = (EditText) findViewById(R.id.password_edit);
        maleButton = (RadioButton) findViewById(R.id.male_btn);
        regButton.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                String name = nameEdit.getText().toString();
                String passwd = passwdEdit.getText().toString();
                String gender = maleButton.isChecked() ? "男" : "女";
                // 如果输入信息不完整，则不允许注册。
                if (name.equals("") || passwd.equals("")) {
                    Toast.makeText(RegisterActivity.this, "请填写完整的信息！", 3000)
                            .show();
                } else {
                    // 创建Person对象，一个可序列化的对象。
                    Person person = new Person(name, passwd, gender);
                    Bundle bundle = new Bundle();
                    bundle.putSerializable("person", person);
                    Intent intent = new Intent(RegisterActivity.this,
                            ResultActivity.class);
                    intent.putExtras(bundle);
                    // 启动另一个Activity。
                    startActivity(intent);
                }
            }
        });
    }
}