Android中使用隐式Intent完成“猜数游戏”的代码清单

1、Android中使用隐式Intent完成“猜数游戏”的代码清单范美英（北京信息职业技术学院）摘 要：Android中可以使用Intent完成界面切换、组件之间的通信等功能，本文详细罗列了使用隐式Intent完成“猜数游戏”的代码清单。关键词： Android；Intent；猜数游戏；代码清单 1 src/MainActivity.java类的代码public class MainActivity extends Activity Intent i;final String key="num_key" Overrideprotected void onCreate(Bundl

2、e savedInstanceState) super.onCreate(savedInstanceState);i=this.getIntent();public void clickIMGs(View v)switch(v.getId()i.putExtra(key, 1);break;i.putExtra(key, 2);break;i.putExtra(key, 3);break;i.putExtra(key, 4);break;i.putExtra(key, 5);break;i.putExtra(key, 6);break;i.putExtra(key, 7);break;i.pu

3、tExtra(key, 8);break;i.putExtra(key, 9);break;default:break;goBack();private void goBack() this.setResult(RESULT_OK, i);this.finish();Overridepublic boolean onKeyDown(int keyCode, KeyEvent event) if (keyCode = KeyEvent.KEYCODE_BACK) /屏蔽android手机中的back键return false;return super.onKeyDown(keyCode, eve

4、nt);2 src/ BackActivity.java类的代码public class BackActivity extends Activity Handler h;int secs=5;final int REQUEST_CODE=1;TextView tv;Overrideprotected void onCreate(Bundle savedInstanceState) super.onCreate(savedInstanceState);h=new Handler()Overridepublic void handleMessage(Message msg) this.obtain

5、Message();switch(msg.what)case 0:tv.setText("选图剩余时间："+secs);if(secs=1)gotoMain();break;default:break;private void gotoMain() /隐式跳转/在AndroidManifest.xml中进行了相关配置Intent i=new Intent();startActivityForResult(i, REQUEST_CODE);Thread wt= new MyThread();wt.start();public class MyThread extends Th

6、read Overridepublic void run() super.run();while(secs>=1)try Message m=new Message();m.obj=secs;m.what=0;h.sendMessage(m);Thread.sleep(1000);secs-; catch (InterruptedException e) e.printStackTrace();Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) if(requestCo

7、de=REQUEST_CODE && resultCode=RESULT_OK)tv.setText("您刚才选择了数字值为"+data.getIntExtra("num_key", 0)+"的图片");super.onActivityResult(requestCode, resultCode, data);3 res/layout/activity_main.xml的代码清单 android:layout_width="fill_parent" android:layout_height=&qu

8、ot;fill_parent" android:layout_gravity="center" android:background="#fff"> <TableRow android:id="+id/tableRow1" android:layout_width="match_parent" android:layout_height="wrap_content" > <ImageView android:id="+id/img_1" an

9、droid:layout_width="0dp" android:layout_height="140dp" android:layout_weight="1" android:onClick="clickIMGs" android:src="drawable/one" /> <ImageView android:id="+id/img_2" android:layout_width="0dp" android:layout_height=&q

10、uot;140dp" android:layout_weight="1" android:onClick="clickIMGs" android:src="drawable/two" /> <ImageView android:id="+id/img_3" android:layout_width="0dp" android:layout_height="140dp" android:layout_weight="1" android

11、:onClick="clickIMGs" android:src="drawable/three" /> </TableRow> <TableRow android:id="+id/tableRow2" android:layout_width="match_parent" android:layout_height="wrap_content" > <ImageView android:id="+id/img_4" android:lay

12、out_width="0dp" android:layout_height="140dp" android:layout_weight="1" android:onClick="clickIMGs" android:src="drawable/four" /> <ImageView android:id="+id/img_5" android:layout_width="0dp" android:layout_height="140d

13、p" android:layout_weight="1" android:onClick="clickIMGs" android:scaleType="centerCrop" android:src="drawable/five" /> <ImageView android:id="+id/img_6" android:layout_width="0dp" android:layout_height="140dp" android:l

14、ayout_weight="1" android:onClick="clickIMGs" android:src="drawable/six" /> </TableRow> <TableRow android:id="+id/tableRow3" android:layout_width="match_parent" android:layout_height="wrap_content" > <ImageView android:id=&

15、quot;+id/img_7" android:layout_width="0dp" android:layout_height="140dp" android:layout_weight="1" android:onClick="clickIMGs" android:scaleType="centerCrop" android:src="drawable/seven" /> <ImageView android:id="+id/img_8&q

16、uot; android:layout_width="0dp" android:layout_height="140dp" android:layout_weight="1" android:onClick="clickIMGs" android:src="drawable/eight" /> <ImageView android:id="+id/img_9" android:layout_width="0dp" android:layout_

17、height="140dp" android:layout_weight="1" android:onClick="clickIMGs" android:scaleType="centerCrop" android:src="drawable/nine" /> </TableRow></TableLayout>4 res/layout/activity_back.xml的代码清单<?xml version="1.0" encoding=&q

18、uot;utf-8"?> android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <TextView android:id="+id/tv_show" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="" android:textAppearance="?android:attr/textAppearanceLarge" /></FrameLayout>5 AndroidManifest.xml的配置清单<?xml version="1.0" encoding="utf-8"?> androi