最常见的猜拳小游戏Android代码实现

        AndroidManifest 

   fightHello world!Settings甲方乙方石头剪刀布出拳再来一局 --> fragment_main.xml   

 package com.dragon.android.fight; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.ImageView; import android.widget.RadioButton; import android.widget.RadioGroup; public class MainActivity extends Activity { // 设置一个静态变量，用于关闭Activity public static MainActivity instance = null; private RadioGroup radioGroup1; private Button button1; private ImageView imageView1; @Override protected void onCreate(Bundle savedInstanceState) { // 代表当前的Activity instance = this; super.onCreate(savedInstanceState); setContentView(R.layout.fragment_main); radioGroup1 = (RadioGroup) findViewById(R.id.radioGroup1); // 设置图片透明 // imageView1 = (ImageView) findViewById(R.id.imageView1); // imageView1.getBackground().setAlpha(100); button1 = (Button) findViewById(R.id.button1); button1.setOnClickListener(new MyButtonListener()); } class MyButtonListener implements OnClickListener { @Override public void onClick(View v) { // 得到选中的RadioButton RadioButton radioButton = (RadioButton) findViewById(radioGroup1 .getCheckedRadioButtonId()); String radioText = radioButton.getText().toString(); Intent intent = new Intent(); intent.putExtra("checked", radioText); intent.setClass(MainActivity.this, OtherActivity.class); startActivity(intent); } } } 

 package com.dragon.android.fight; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.RadioButton; import android.widget.RadioGroup; import android.widget.TextView; public class OtherActivity extends Activity { private RadioGroup radioGroup1; private Button button1; private TextView textView2; private RadioButton radioButton; private Button button2; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_other); radioGroup1 = (RadioGroup) findViewById(R.id.radioGroup1); button1 = (Button) findViewById(R.id.button1); textView2 = (TextView) findViewById(R.id.textView2); button2 = (Button) findViewById(R.id.button2); button1.setOnClickListener(new MyButtonListener()); button2.setOnClickListener(new MyButtonListener1()); } class MyButtonListener implements OnClickListener { @Override public void onClick(View v) { radioButton = (RadioButton) findViewById(radioGroup1 .getCheckedRadioButtonId()); String buttonText = radioButton.getText().toString(); Intent intent = getIntent(); String checked = intent.getStringExtra("checked"); // 设置View为可见 textView2.setVisibility(View.VISIBLE); button2.setVisibility(View.VISIBLE); String msg = "甲出：" + checked + "\n" + "乙出：" + buttonText + "\n"; if (buttonText.equals(checked)) { textView2.setText(msg + "平局"); } if (buttonText.equals("石头")) { if (checked.equals("剪刀")) { textView2.setText(msg + "乙方赢"); } else if (checked.equals("布")) { textView2.setText(msg + "甲方赢"); } } if (buttonText.equals("剪刀")) { if (checked.equals("布")) { textView2.setText(msg + "乙方赢"); } else if (checked.equals("石头")) { textView2.setText(msg + "甲方赢"); } } if (buttonText.equals("布")) { if (checked.equals("石头")) { textView2.setText(msg + "乙方赢"); } else if (checked.equals("剪刀")) { textView2.setText(msg + "甲方赢"); } } } } class MyButtonListener1 implements OnClickListener { @Override public void onClick(View arg0) { Intent intent = new Intent(); intent.setClass(OtherActivity.this, MainActivity.class); finish(); // 关闭指定Activity MainActivity.instance.finish(); startActivity(intent); } } }