安卓数据传递和数据回传简单注册和宠物装备购买

activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/loading"
    tools:context=".MainActivity">
    <ImageView
        android:id="@+id/iv_head"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="100dp"
        android:src="@drawable/head"/>
    <LinearLayout
        android:id="@+id/layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/iv_head"
        android:layout_margin="10dp"
        android:orientation="vertical">
        <RelativeLayout
            android:id="@+id/regist_username"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="5dp">
            <TextView
                android:id="@+id/tv_name"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_centerVertical="true"
                android:text="用户名："
                android:textSize="20sp"/>
            <EditText
                android:id="@+id/et_name"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginLeft="5dp"
                android:layout_toRightOf="@id/tv_name"
                android:hint="请输入用户名"
                android:textSize="16sp"/>
        </RelativeLayout>
        <RelativeLayout
            android:id="@+id/regist_password"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="5dp">
            <TextView
                android:id="@+id/tv_psw"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_centerVertical="true"
                android:text="密    码："
                android:textSize="20sp"/>
            <EditText
                android:id="@+id/et_password"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginLeft="5dp"
                android:layout_toRightOf="@id/tv_psw"
                android:hint="请输入密码"
                android:inputType="textPassword"
                android:textSize="16sp"/>
        </RelativeLayout>
    </LinearLayout>
    <Button
        android:id="@+id/btn_send"
        android:layout_width="160dp"
        android:layout_height="48dp"
        android:layout_below="@id/layout"
        android:layout_centerHorizontal="true"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:background="@drawable/start"
        android:text="注册"
        android:textColor="#FFFFFF"
        android:textSize="20sp"
        android:textStyle="bold"/>
</RelativeLayout>

activity_show.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/loading"
    android:orientation="vertical"
    tools:context=".MainActivity">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="15dp"
        android:layout_marginTop="30dp"
        android:orientation="horizontal"
        android:padding="15dp">
        <ImageView
            android:id="@+id/pet_imgv"
            android:layout_width="0dp"
            android:layout_height="150dp"
            android:layout_weight="1"
            android:background="@drawable/baby"/>
        <LinearLayout
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_weight="1"
            android:orientation="vertical"
            android:paddingLeft="20dp">
            <TextView
                android:id="@+id/tv_name"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="用户名:"
                android:textSize="14sp"
                android:textStyle="bold"/>
            <TextView
                android:id="@+id/tv_password"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="20dp"
                android:text="密    码:"
                android:textSize="14sp"
                android:textStyle="bold"/>
        </LinearLayout>
    </LinearLayout>
    <TextView
        android:id="@+id/pet_dialog_tv"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginBottom="25dp"
        android:text="主人，快给小宝宝购买装备吧"
        android:textSize="20sp"/>
    <TableLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginBottom="50dp"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="5dp">
        <TableRow
            android:layout_width="fill_parent"
            android:layout_height="wrap_content">
            <TextView
                android:layout_width="0dip"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:text="生命值:"
                android:textColor="@android:color/black"
                android:textSize="18sp"/>
            <ProgressBar
                android:id="@+id/progressBar1"
                style="?android:attr/progressBarStyleHorizontal"
                android:layout_width="0dip"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_weight="2"/>
            <TextView
                android:id="@+id/tv_life_progress"
                android:layout_width="0dip"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:gravity="center"
                android:text="0"
                android:textColor="#000000"
                android:textSize="18sp"/>
        </TableRow>

        <TableRow
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <TextView
                android:layout_width="0dip"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:text="攻击力:"
                android:textColor="@android:color/black"
                android:textSize="18sp" />

            <ProgressBar
                android:id="@+id/progressBar2"
                style="?android:attr/progressBarStyleHorizontal"
                android:layout_width="0dip"
                android:layout_height="wrap_content"
                android:layout_weight="2" />

            <TextView
                android:id="@+id/tv_attack_progress"
                android:layout_width="0dip"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:gravity="center"
                android:text="0"
                android:textColor="#000000"
                android:textSize="18sp" />
        </TableRow>

        <TableRow
            android:layout_width="fill_parent"
            android:layout_height="wrap_content">
            <TextView
                android:layout_width="0dip"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:text="敏    捷:"
                android:textColor="@android:color/black"
                android:textSize="18sp"/>

            <ProgressBar
                android:id="@+id/progressBar3"
                style="?android:attr/progressBarStyleHorizontal"
                android:layout_width="0dip"
                android:layout_height="wrap_content"
                android:layout_weight="2" />

            <TextView
                android:id="@+id/tv_speed_progress"
                android:layout_width="0dip"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:gravity="center"
                android:text="0"
                android:textColor="#000000"
                android:textSize="18sp"/>
        </TableRow>
    </TableLayout>
    <Button
        android:id="@+id/btn_baby"
        android:layout_width="160dp"
        android:layout_height="48dp"
        android:layout_gravity="center"
        android:background="@drawable/start"
        android:text="立即购买 GO！"
        android:textColor="#ffffff"
        android:textSize="18sp"
        android:onClick="click"
        android:textStyle="bold"/>
</LinearLayout>

activity_shop.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    android:id="@+id/rl"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/loading"
    android:orientation="vertical">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#307f7f7f"
        android:gravity="center_vertical"
        android:orientation="horizontal"
        android:padding="5dp">
        <ImageView
            android:layout_width="30dp"
            android:layout_height="30dp"
            android:background="@android:drawable/ic_menu_info_details"/>
        <TextView
            android:id="@+id/tv_name"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="20dp"
            android:text="商品名称"/>
        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="40dp"
            android:orientation="vertical">
            <TextView
                android:id="@+id/tv_life"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="生命值"
                android:textSize="13sp"/>

            <TextView
                android:id="@+id/tv_attack"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="攻击力"
                android:textSize="13sp" />

            <TextView
                android:id="@+id/tv_speed"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="速度"
                android:textSize="13sp"/>
        </LinearLayout>
    </LinearLayout>
</RelativeLayout>

MainActivity.java

package cn.itcast.userregist;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {
    private EditText et_password;
    private Button btn_send;
    private EditText et_name;
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        et_name = (EditText) findViewById(R.id.et_name);
        et_password = (EditText) findViewById(R.id.et_password);
        btn_send = (Button) findViewById(R.id.btn_send);
        //点击开始游戏按钮进行数据传递
        btn_send.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                passDate();
            }
        });
    }
    //传递数据
    public void passDate() {
        //创建Intent对象,启动Activity02
        Intent intent = new Intent(this, ShowActivity.class);
        //将数据存入Intent对象
        intent.putExtra("name", et_name.getText().toString().trim());
        intent.putExtra("password", et_password.getText().toString().trim());
        startActivity(intent);
    }
}

ShowActivity.java

package cn.itcast.userregist;

import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.TextView;

import java.io.Serializable;

public class ShowActivity extends AppCompatActivity {
    private ProgressBar mProgressBar1;
    private ProgressBar mProgressBar2;
    private ProgressBar mProgressBar3;
    private TextView mLifeTV;
    private TextView mAttackTV;
    private TextView mSpeedTV;
    private TextView tv_name;
    private TextView tv_password;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_show);
        //获取Intent对象
        Intent intent = getIntent();
        //取出key对应的value值
        String name = intent.getStringExtra("name");
        String password = intent.getStringExtra("password");
        tv_name = (TextView) findViewById(R.id.tv_name);
        tv_password = (TextView) findViewById(R.id.tv_password);
        tv_name.setText("用户名：" + name);
        tv_password.setText("密    码：" + password);


        mLifeTV = (TextView) findViewById(R.id.tv_life_progress);
        mAttackTV = (TextView) findViewById(R.id.tv_attack_progress);
        mSpeedTV = (TextView) findViewById(R.id.tv_speed_progress);
        initProgress();                    //初始化进度条
    }
    private void initProgress() {
        mProgressBar1 = (ProgressBar) findViewById(R.id.progressBar1);
        mProgressBar2 = (ProgressBar) findViewById(R.id.progressBar2);
        mProgressBar3 = (ProgressBar) findViewById(R.id.progressBar3);
        mProgressBar1.setMax(1000);        //设置最大值1000
        mProgressBar2.setMax(1000);
        mProgressBar3.setMax(1000);
    }
    // 开启新的activity并获取他的返回值
    public void click(View view) {
        Intent intent = new Intent(this, ShopActivity.class);
        startActivityForResult(intent, 1); // 返回请求结果,请求码为1
    }

    @Override
    protected void onActivityResult(int requestCode,int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (data != null) {
            // 判断结果码是否等于1,等于1为宝宝添加装备
            if (resultCode == 1) {
                if (requestCode == 1) {
                    ItemInfo info = (ItemInfo) data.getSerializableExtra("equipment");
                    //更新ProgressBar的值
                    updateProgress(info);
                }
            }
        }
    }

    //更新ProgressBar的值
    private void updateProgress(ItemInfo info) {
        int progress1 = mProgressBar1.getProgress();
        int progress2 = mProgressBar2.getProgress();
        int progress3 = mProgressBar3.getProgress();
        mProgressBar1.setProgress(progress1 + info.getLife());
        mProgressBar2.setProgress(progress2 + info.getAcctack());
        mProgressBar3.setProgress(progress3 + info.getSpeed());
        mLifeTV.setText(mProgressBar1.getProgress() + "");
        mAttackTV.setText(mProgressBar2.getProgress() + "");
        mSpeedTV.setText(mProgressBar3.getProgress() + "");
    }
}

ShopActivity.java

package cn.itcast.userregist;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
public class ShopActivity extends AppCompatActivity implements
        View.OnClickListener {
    private ItemInfo itemInfo;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_shop);
        itemInfo = new ItemInfo("金剑", 100, 20, 20);
        findViewById(R.id.rl).setOnClickListener(this);
        TextView mLifeTV = (TextView) findViewById(R.id.tv_life);
        TextView mNameTV = (TextView) findViewById(R.id.tv_name);
        TextView mSpeedTV = (TextView) findViewById(R.id.tv_speed);
        TextView mAttackTV = (TextView) findViewById(R.id.tv_attack);
        mLifeTV.setText("生命值+" + itemInfo.getLife());
        mNameTV.setText(itemInfo.getName() + "");
        mSpeedTV.setText("敏捷度+" + itemInfo.getSpeed());
        mAttackTV.setText("攻击力+" + itemInfo.getAcctack());
    }
    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
        switch (v.getId()) {
            case R.id.rl:
                Intent intent = new Intent();
                intent.putExtra("equipment", itemInfo);
                setResult(1, intent);
                finish();
                break;
        }
    }
}

ItemInfo.java

package cn.itcast.userregist;

import java.io.Serializable;

/*
* 用于封装装备的信息的实体类
*
* */
public class ItemInfo implements Serializable {

    private String name;
    private int acctack;
    private int life;
    private int speed;

    public ItemInfo(String name, int acctack, int life, int speed) {
        this.name = name;
        this.acctack = acctack;
        this.life = life;
        this.speed = speed;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAcctack() {
        return acctack;
    }

    public void setAcctack(int acctack) {
        this.acctack = acctack;
    }

    public int getLife() {
        return life;
    }

    public void setLife(int life) {
        this.life = life;
    }

    public int getSpeed() {
        return speed;
    }

    public void setSpeed(int speed) {
        this.speed = speed;
    }
}