猜拳小游戏

猜拳小游戏

根据以前学的知识，我们首先分析一下猜拳小游戏的布局! 和所需要的控件！以前学的页面跳转。

效果图：





一. 我们不用硬编码的方式，我们在res文件夹values文件夹里面的string.xml。

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<?xml version="1.0" encoding="utf-8"?>

<resources>

<string name="app_name">caiquan</string>

<string name="action_settings">Settings</string>

<string name="hello_world">Hello world!</string>

<string name="lable_main">请选择你要出的拳：</string>

<string name="ra_shitou">石头</string>

<string name="ra_jiandao">剪刀</string>

<string name="ra_bu">布</string>

<string name="button_main">出拳</string>

<string name="title_activity_show">ShowActivity</string>

</resources>

二. 然后再res文件夹中layout文件里面activity_main.xml定义布局！强调一点（RadioGroup控件把RadioButton单选框包围起来，意思就是把RadioButton单选框控件实现出来！如果不用RadioGroup控件包围RadioButton单选框，那RadioButton单选框无法实现单选效果！就变成多选了）。

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<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:orientation="vertical" >

<TextView

android:id="@+id/BT"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/lable_main" />

<RadioGroup

android:id="@+id/radiogroupe"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

>

<RadioButton

android:id="@+id/BU"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignLeft="@+id/CQ"

android:layout_below="@+id/JD"

android:layout_marginTop="24dp"

android:text="@string/ra_bu" />

<RadioButton

android:id="@+id/JD"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignLeft="@+id/BU"

android:layout_below="@+id/ST"

android:layout_marginTop="16dp"

android:text="@string/ra_jiandao" />

<RadioButton

android:id="@+id/ST"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignLeft="@+id/BT"

android:layout_below="@+id/BT"

android:text="@string/ra_shitou" />

</RadioGroup>

<Button

android:id="@+id/CQ"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_alignLeft="@+id/ST"

android:layout_below="@+id/BU"

android:layout_marginTop="14dp"

android:text="@string/button_main" />

</LinearLayout>

三. 然后再res文件夹中layout文件里面activity_show.xml定义布局！这个布局页面主要是显示从activity_main 里面的数据传过来并接受显示在activity_show 的标签上。

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<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"

>

<TextView

android:id="@+id/show"

android:layout_width="wrap_content"

android:layout_height="wrap_content" />

</LinearLayout>

四. 在MainActivity.java里面获取布局页面里面的ID地址，并定义属性。

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package edu.bzu.caiquan;

import android.os.Bundle;

import android.app.Activity;

import android.content.Intent;

import android.view.Menu;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.RadioGroup;

public class MainActivity extends Activity {

private RadioGroup radioGroup;

private Button button;

private OnClickListener listener=new OnClickListener() {

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

switch(v.getId()){

case R.id.CQ:

int id=radioGroup.getCheckedRadioButtonId();

int quan=0;

switch(id){

case R.id.ST:

quan=1;

break;

case R.id.JD:

quan=2;

break;

case R.id.BU:

quan=3;

break;

default:

break;

}

Intent intent = new Intent();

intent.setClass(MainActivity.this, ShowActivity.class);

intent.putExtra("quan", quan);

startActivity(intent);

break;

default:

break;

}

}

};

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

radioGroup=(RadioGroup)findViewById(R.id.radiogroupe);

button=(Button)findViewById(R.id.CQ);

button.setOnClickListener(listener);

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.main, menu);

return true;

}

}

五. 在ShowActivity.java里面计算人和电脑随机出拳，谁是赢家!

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package edu.bzu.caiquan;

import java.util.Random;

import android.os.Bundle;

import android.app.Activity;

import android.content.Intent;

import android.view.Menu;

import android.widget.TextView;

public class ShowActivity extends Activity {

private TextView tView;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_show);

tView=(TextView) findViewById(R.id.show);

//得到人出的拳

Intent intent=getIntent();

Bundle bundle=intent.getExtras();

int ren=bundle.getInt("quan");

//电脑出的拳

Random random=new Random();

int cpu=random.nextInt(3-1)+1;

//比较结果 得出胜负

String show=compare(ren,cpu);

tView.setText(show);

}

private String compare(int ren, int cpu) {

// TODO Auto-generated method stub

StringBuffer sbf=new StringBuffer("结果:\n"+"人 "+convert(ren)+" VS "+convert(cpu)+" 电脑\n");

if (ren==cpu) {

sbf.append("平局，再接再励！");

}else if(ren==1 && cpu==3){

sbf.append("电脑胜，很遗憾！下次努力！");

}else if(ren==3 && cpu==1){

sbf.append("人胜，继续努力！");

}else if(ren<cpu){

sbf.append("人胜，继续努力！");

}else if(ren>cpu){

sbf.append("电脑胜，很遗憾！下次努力！");

}

return sbf.toString();

}

private String convert(int id){

switch (id) {

case 1:

return "石头";

case 2:

return "剪刀";

case 3:

return "布";

default:

break;

}

return null;

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.show, menu);

return true;

}

}

六. AndroidManifest.xml.声明

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<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="edu.bzu.caiquan"

android:versionCode="1"

android:versionName="1.0" >

<uses-sdk

android:minSdkVersion="8"

android:targetSdkVersion="18" />

<application

android:allowBackup="true"

android:icon="@drawable/ic_launcher"

android:label="@string/app_name"

android:theme="@style/AppTheme" >

<activity

android:name="edu.bzu.caiquan.MainActivity"

android:label="@string/app_name" >

<intent-filter>

<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />

</intent-filter>

</activity>

<activity

android:name="edu.bzu.caiquan.ShowActivity"

android:label="@string/title_activity_show" >

</activity>

</application>

</manifest>