问题描述

android应用开发详解里的一个例子

我导入的书上例子可以运行，照着书打进去的代码就不能运行，同样从例子里面复制过来的代码也不能运行，MainActivity可以显示，但是点击register后跳转的ResultActivity就不能显示，模拟器弹出has stopped字样，求解答
以下是代码

package com.amaker.test;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.Spinner;
import android.widget.ToggleButton;

public class MainActivity extends Activity {

    private Button register,cancel;
    private ToggleButton marriged;
    private RadioButton male,female;
    private EditText username,password;
    private Spinner position;
    private CheckBox reading,swimming;

    @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);

        male = (RadioButton)findViewById(R.id.male);
        female = (RadioButton)findViewById(R.id.female);

        reading = (CheckBox)findViewById(R.id.reading);
        swimming = (CheckBox)findViewById(R.id.swimming);

        marriged = (ToggleButton)findViewById(R.id.marriged);

        position = (Spinner)findViewById(R.id.position);

        String[] str = {"CEO","CFO","PM"};

        ArrayAdapter aa = new ArrayAdapter(this, android.R.layout.simple_spinner_dropdown_item,str);

        position.setAdapter(aa);

        register = (Button)findViewById(R.id.register);
        cancel = (Button)findViewById(R.id.cancel);

        register.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                Bundle b = new Bundle();
                b.putString("username", "用户名称："+username.getText().toString());
                b.putString("password", "用户密码："+password.getText().toString());

                if(male.isChecked()){
                    b.putString("gender", "性别：男");
                }else{
                    b.putString("gender", "性别：女");
                }
                String temp = "爱好：";
                if(reading.isChecked()){
                    temp+="阅读";
                }
                if(swimming.isChecked()){
                    temp+=" ";
                    temp+="游泳";
                }

                b.putString("hobby", temp);

                if(marriged.isChecked()){
                    b.putString("marriged", "婚否：已婚");
                }else{
                    b.putString("marriged", "婚否：未婚");
                }

                b.putString("position","职位："+ position.getSelectedItem().toString());

                Intent intent = new Intent(MainActivity.this,ResultActivity.class);

                intent.putExtra("data", b);

                startActivity(intent);
            }
        });

    }
}

import android.widget.ArrayAdapter;
import android.widget.ListView;

public class ResultActivity extends Activity{
    private ListView listView;

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.result);
        listView = (ListView) findViewById(R.id.ListView01);

        Intent intent = this.getIntent();

        Bundle b = intent.getBundleExtra("data");

        System.out.println(b.getString("username"));

        List list =  new ArrayList();

        list.add(b.getString("username"));
        list.add(b.getString("password"));
        list.add(b.getString("position"));

        list.add(b.getString("gender"));
        list.add(b.getString("hobby"));
        list.add(b.getString("marriged"));

        ArrayAdapter adapter = new ArrayAdapter(this,android.R.layout.simple_list_item_1,list);

        listView.setAdapter(adapter);

    }
}

布局的xml
main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >

<TableLayout
    android:id="@+id/TableLayout01"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:stretchColumns="1"
    >

    <TableRow
    android:id="@+id/TableRow01"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">
        <TextView
        android:text="用户名称"
        android:id="@+id/TextView01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"></TextView>

        <EditText
        android:text=""
        android:id="@+id/username"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"

        ></EditText>
    </TableRow>

    <TableRow
    android:id="@+id/TableRow02"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">
        <TextView
        android:text="用户密码"
        android:id="@+id/TextView02"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"></TextView>

        <EditText
        android:text=""
        android:id="@+id/password"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:password="true"

        ></EditText>
    </TableRow>

    <TableRow
    android:id="@+id/TableRow03"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">
        <TextView
        android:text="性别"
        android:id="@+id/TextView03"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"></TextView>

        <RadioGroup
        android:id="@+id/gender_g"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">

        <RadioButton
        android:text="男"
        android:id="@+id/male"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"></RadioButton>

        <RadioButton
        android:text="女"
        android:id="@+id/female"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"></RadioButton>

        </RadioGroup>
    </TableRow>

    <TableRow
    android:id="@+id/TableRow04"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">
        <TextView
        android:text="婚否"
        android:id="@+id/TextView04"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"></TextView>

    <ToggleButton
    android:text="@+id/ToggleButton01"
    android:id="@+id/marriged"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"></ToggleButton>
</TableRow>

    <TableRow
    android:id="@+id/TableRow05"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    >
        <TextView
        android:text="爱好"
        android:id="@+id/hobby"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"></TextView>

        <CheckBox
        android:text="阅读"
        android:id="@+id/reading"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_column="1"
        ></CheckBox>
        <CheckBox
        android:text="游泳"
        android:id="@+id/swimming"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_column="1"
        ></CheckBox>

    </TableRow>

    <TableRow
    android:id="@+id/TableRow06"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">
        <TextView
        android:text="职务"
        android:id="@+id/TextView05"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"></TextView>

        <Spinner
        android:id="@+id/position"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"></Spinner>
    </TableRow>

    <TableRow
    android:id="@+id/TableRow07"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">
        <Button
        android:text="取消"
        android:id="@+id/cancel"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"></Button>

        <Button
        android:text="注册"
        android:id="@+id/register"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"></Button>

    </TableRow>

</TableLayout>
</LinearLayout>

result.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
    <ListView
    android:id="@+id/ListView01"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"></ListView>
</LinearLayout>

解决方案

是不是没有在Manifest文件里注册ResultActivity？每个Activity都要在Manifest文件里注册后才能使用的。