Android装备选择案例

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在Android学习中，有一个Activity回传数据，通过装备选择案例实现

主界面

商店页面

购买装备后的界面

activity_main.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:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    android:orientation="vertical"
    tools:context="cn.edu.bzu.select.MainActivity">
    <ImageView
        android:id="@+id/pet_imgv"
        android:layout_width="100dp"
        android:layout_height="200dp"
        android:layout_gravity="center_horizontal"
        android:layout_marginBottom="5dp"
        android:layout_marginTop="30dp"
        android:src="@drawable/baby"/>
    <TextView
        android:id="@+id/pet_dialog_tv"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginBottom="25dp"
        android:gravity="center"
        android:text="主人，快来买装备吧"/>
    <TableLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginBottom="20dp">
        <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="14sp"/>
            <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:text="0"
                android:gravity="center"
                android:textColor="#000000"/>

        </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="攻击力:"
                android:textColor="@android:color/black"
                android:textSize="14sp"/>
            <ProgressBar
                android:id="@+id/progressBar2"
                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_attack_progress"
                android:layout_width="0dip"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:text="0"
                android:gravity="center"
                android:textColor="#000000"/>
        </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="14sp"/>
            <ProgressBar
                android:id="@+id/progressBar3"
                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_speed_progress"
                android:layout_width="0dip"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:text="0"
                android:gravity="center"
                android:textColor="#000000"/>
        </TableRow>

    </TableLayout>

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginLeft="50dp"
        android:layout_marginRight="50dp"
        android:layout_marginTop="20dp">

        <Button
            android:id="@+id/btn_baby"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:drawablePadding="3dp"
            android:drawableRight="@android:drawable/ic_menu_add"
            android:onClick="click"
            android:text="买装备"
            android:textSize="14sp"/>

    </RelativeLayout>

</LinearLayout>

activity_shop.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/r1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">
    <View
        android:layout_width="30dp"
        android:layout_height="30dp"
        android:background="@android:drawable/ic_menu_info_details"
        android:layout_centerVertical="true"
        android:layout_alignParentLeft="true"/>
    <TextView
        android:id="@+id/tv_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerVertical="true"
        android:layout_marginLeft="60dp"
        android:text="商品名称"/>
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:layout_centerInParent="true">
        <TextView
            android:id="@+id/tv_life"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textSize="13sp"
            android:text="生命值"/>
        <TextView
            android:id="@+id/tv_attack"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textSize="13sp"
            android:text="攻击力"/>
        <TextView
            android:id="@+id/tv_speed"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textSize="13sp"
            android:text="速度"/>

    </LinearLayout>


</RelativeLayout>

ItemInfo.class

package cn.edu.bzu.select;

import java.io.Serializable;

/**
 * Created by Administrator on 2017/4/2 0002.
 */

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;
    }

    @Override
    public String toString() {
        return "[name="+name+",acctack="+acctack+",life="+life+",speed="+speed+"]";
    }
}

MainActivity

package cn.edu.bzu.select;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {
    private ProgressBar mProgressBar1;
    private ProgressBar mProgressBar2;
    private ProgressBar mProgressBar3;
    private TextView mLifeTV;
    private TextView mAcctackTV;
    private TextView mSpeedTV;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mLifeTV=(TextView) findViewById(R.id.tv_life_progress);
        mAcctackTV=(TextView) findViewById(R.id.tv_attack_progress);
        mSpeedTV=(TextView) findViewById(R.id.tv_speed_progress);
        initProgress();
    }

    private void initProgress() {
        mProgressBar1=(ProgressBar) findViewById(R.id.progressBar1);
        mProgressBar2=(ProgressBar) findViewById(R.id.progressBar2);
        mProgressBar3=(ProgressBar) findViewById(R.id.progressBar3);
        mProgressBar1.setMax(1000);
        mProgressBar2.setMax(1000);
        mProgressBar3.setMax(1000);
    }
    public void click(View view){
        Intent intent=new Intent(this,ShopActivity.class);
        startActivityForResult(intent,1);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (data!=null){
            if(requestCode==1){
                ItemInfo info=(ItemInfo) data.getSerializableExtra("equipment");
                updateProgress(info);
            }
        }
    }

    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()+"");
        mAcctackTV.setText(mProgressBar2.getProgress()+"");
        mSpeedTV.setText(mProgressBar3.getProgress()+"");
    }
}

ShopActivity

package cn.edu.bzu.select;

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

/**
 * Created by Administrator on 2017/4/2 0002.
 */

public class ShopActivity extends Activity 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.r1).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) {
        switch (v.getId()){
            case R.id.r1:
                Intent intent=new Intent();
                intent.putExtra("equipment",itemInfo);
                setResult(1,intent);
                finish();
                break;
        }
    }
}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="cn.edu.bzu.select">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".ShopActivity"></activity>
    </application>

</manifest>