安卓数据传递和数据回传简单注册和宠物装备购买移动开发weixin42623237的博客-

activity_main.xml <?xml version="1.0" encoding="utf-8"?> <RelativeLayout     xmlns:android="https://schemas.android.com/apk/res/android"     xmlns:tools="https://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="https://schemas.android.com/apk/res/android"     xmlns:tools="https://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="https://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; } }