《移动应用开发》试题及答案

1、【精品文档】如有侵权，请联系网站删除，仅供学习与交流移动应用开发试题及答案.精品文档.移动应用开发试题题目：1.请实现点击按钮拨打电话功能。（20分）2.请实现点击按钮改变文本控件颜色的功能。（30分）3.请实现使用socket通信的服务器端代码。（50分）要求：逻辑结构完整，答案要点突出，论述充分，每题答案字数不少于400字。答案不得完全照抄书本或其他资料，不得互相抄袭。中南大学网络教育课程考试移动应用开发答卷本人承诺：本试卷确为本人独立完成，若有违反愿意接受处理。签名：_学号：_专业：_学习中心：_题号一二三总分评阅人签字成绩1. 答： private Button btn2;btn2=(

2、Button)findViewById(R.id.btn2);/在xml中把button2改成btn2，为该按钮的idbtn2.setOnClickListener(new OnClickListener();在OnClick() Intent in2 = new Intent(); in2.setAction(Intent.ACTION_CALL);/指定意图动作 in2.setData(Uri.parse("tel:1836380000");/指定电话号码 startActivity(in2);在android系统中，所有系统请求，必须要在androidmainfest

3、.xml中注册 在<application上面<uses-permission android:name="android.permission.CALL_PHONE"/>MainActivity.java:package com.example.qq;import .Uri;import android.os.Bundle;import android.app.Activity;import android.app.AlertDialog;import android.app.Dialog;import android.content.DialogInt

4、erface;import android.content.Intent;import android.view.LayoutInflater;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.EditText;public class MainActivity extends Activity private Button btn;private Button

5、btn2; private EditText et; private EditText et2; Override protected void onCreate(Bundle savedInstanceState) super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); et = (EditText)findViewById(R.id.editText1); et2 = (EditText)findViewById(R.id.editText2); btn2 = (Button)findViewB

6、yId(R.id.btn2); btn = (Button)findViewById(R.id.button1); btn.setOnClickListener(new OnClickListener()Overridepublic void onClick(View arg0) / TODO Auto-generated method stub final String str = et.getText().toString().trim(); final String str2 = et2.getText().toString().trim();if (str.equals(str2)In

7、tent in = new Intent(MainActivity.this,SecActivity.class);startActivity(in);elseSystem.out.println("!"); btn2.setOnClickListener(new OnClickListener()Overridepublic void onClick(View arg0) / TODO Auto-generated method stubIntent in2 = new Intent();in2.setAction(Intent.ACTION_CALL);in2.setD

8、ata(Uri.parse("telquot;);startActivity(in2);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;androidmainfest.xml:<?xml version="1.0"

9、encoding="utf-8"?><manifest xmlns:android=" package="com.example.qq" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="17" android:targetSdkVersion="17" /> <uses-permission android:n

10、ame="android.permission.CALL_PHONE"/> <application android:allowBackup="true" android:icon="drawable/ic_launcher" android:label="string/app_name" android:theme="style/AppTheme" > <activity android:name="com.example.qq.MainActivity&qu

11、ot; android:label="string/app_name" > <intent-filter> <action android:name="ent.action.MAIN" /> <category android:name="ent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name="com.exam

12、ple.qq.SecActivity" android:label="string/title_activity_sec" > </activity> </application></manifest>1. Android Layout文件Layout文件，用来呈现一个拨打电话的按钮。1. <?xml version="1.0" encoding="utf-8"?>2. <LinearLayout xmlns:android="3.   

13、;  android:layout_width="fill_parent"4.     android:layout_height="fill_parent"5.     android:orientation="vertical" >6.    <Button7.         android:id="

14、+id/buttonCall"8.         android:layout_width="wrap_content"9.         android:layout_height="wrap_content"10.         android:text="call/p>

15、" />11. </LinearLayout>Activity使用以下代码，Android拨打电话：1. Intent callIntent = new Intent(Intent.ACTION_CALL);2.                 callIntent.setData(Uri.parse("telquot;);3.    

16、0;            startActivity(callIntent);文件：MainActivity.java 当点击拨打电话按钮时，就会拨个号码。1. package net.cublog.android;2. import android.app.Activity;3. import android.content.Context;4. import android.content.Intent;5. import .Uri;6. im

17、port android.os.Bundle;7. import android.telephony.PhoneStateListener;8. import android.telephony.TelephonyManager;9. import android.util.Log;10. import android.view.View;11. import android.view.View.OnClickListener;12. import android.widget.Button;13. public class MainActivity extends Activity 14.

18、    private Button button;15.     Override16.     public void onCreate(Bundle savedInstanceState) 17.         super.onCreate(savedInstanceState);18.         set

19、ContentView(R.layout.main);19.         button = (Button) findViewById(R.id.buttonCall);20.         / add button listener21.         button.setOnClickListener(new OnClickListener()

20、22.             Override23.             public void onClick(View arg0) 24.                 Intent ca

21、llIntent = new Intent(Intent.ACTION_CALL);25.                 callIntent.setData(Uri.parse("telquot;);26.                 

22、startActivity(callIntent);Android Manifest拨打电话，Android需要CALL_PHONE的权限。在AndroidManifest.xml中添加以下代码：1. <uses-permission android:name="android.permission.CALL_PHONE" />添加后：1. <?xml version="1.0" encoding="utf-8"?>2. <manifest xmlns:android="3.  

23、60;  package="net.cublog.android"4.     android:versionCode="1"5.     android:versionName="1.0" >6.     <uses-sdk android:minSdkVersion="7" />7.     <uses-per

24、mission android:name="android.permission.CALL_PHONE" />8.     <application9.         android:icon="drawable/ic_launcher"10.         android:label="string/app_name"

25、>11.         <activity12.             android:name=".MainActivity"13.             android:label="string/app_name"

26、>14.             <intent-filter>15.                 <action android:name="ent.action.MAIN" />16.     

27、60;           <category android:name="ent.category.LAUNCHER" />17.             </intent-filter>18.         </

28、activity>19.     </application>20. </manifest>PhoneStateListener 例子更新上面的Activity，模拟拨打电话的状态，当电话拨打结束后，返回原始Activity，实际上只是重启了这个activity。1. package net.cublog.android;2. import android.app.Activity;3. import android.content.Context;4. import android.content.Intent;5. im

29、port .Uri;6. import android.os.Bundle;7. import android.telephony.PhoneStateListener;8. import android.telephony.TelephonyManager;9. import android.util.Log;10. import android.view.View;11. import android.view.View.OnClickListener;12. import android.widget.Button;13. public class MainActivity extend

30、s Activity 14.     private Button button;15.     Override16.     public void onCreate(Bundle savedInstanceState) 17.         super.onCreate(savedInstanceState);18.       

31、  setContentView(R.layout.main);19.         button = (Button) findViewById(R.id.buttonCall);20.         / add PhoneStateListener21.         PhoneCallListener phoneListene

32、r = new PhoneCallListener();22.         TelephonyManager telephonyManager = (TelephonyManager) this23.             .getSystemService(Context.TELEPHONY_SERVICE);24.       

33、  telephonyManager.listen(phoneListener,PhoneStateListener.LISTEN_CALL_STATE);25.         / add button listener26.         button.setOnClickListener(new OnClickListener() 27.       

34、;      Override28.             public void onClick(View arg0) 29.                 Intent callIntent = new Intent(Intent.ACTION_CAL

35、L);30.                 callIntent.setData(Uri.parse("telquot;);31.                 startActivity(callIntent);32.  

36、60;  /monitor phone call activities33.     private class PhoneCallListener extends PhoneStateListener 34.         private boolean isPhoneCalling = false;35.         String LOG_TAG = "LO

37、GGING 123"36.         Override37.         public void onCallStateChanged(int state, String incomingNumber) 38.             if (TelephonyManager.CALL_STATE_

38、RINGING = state) 39.                 / phone ringing40.                 Log.i(LOG_TAG, "RINGING, number: " + incomingNumber);41. &

39、#160;           if (TelephonyManager.CALL_STATE_OFFHOOK = state) 42.                 / active43.            &#

40、160;    Log.i(LOG_TAG, "OFFHOOK");44.                 isPhoneCalling = true;45.             if (TelephonyManager.CALL_STATE_IDLE =

41、 state) 46.                 / run when class initial and phone call ended, 47.                 / need detect flag from CALL_STATE_OFFHOOK48.

42、                 Log.i(LOG_TAG, "IDLE");49.                 if (isPhoneCalling) 50.        

43、0;            Log.i(LOG_TAG, "restart app");51.                     / restart app52.        

44、60;            Intent i = getBaseContext().getPackageManager()53.                         .getLaunchIntentForPackage(54.

45、                             getBaseContext().getPackageName();55.                

46、60;    i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);56.                     startActivity(i);57.               &

47、#160;     isPhoneCalling = false;由于PhoneStateListener需要READ_PHONE_STATE权限，需要在AndroidManifest.xml中添加以下代码：1. <uses-permission android:name="android.permission.READ_PHONE_STATE" />添加后AndroidManifest.xml如下：1. <?xml version="1.0" encoding="utf-8&

48、quot;?>2. <manifest xmlns:android="3.     package="net.cublog.android"4.     android:versionCode="1"5.     android:versionName="1.0" >6.     <uses-sdk android:minSdkVersion=

49、"7" />7.     <uses-permission android:name="android.permission.CALL_PHONE" />8.     <uses-permission android:name="android.permission.READ_PHONE_STATE" />9.     <application10.   

50、60;     android:icon="drawable/ic_launcher"11.         android:label="string/app_name" >12.         <activity13.          &#

51、160;  android:name=".MainActivity"14.             android:label="string/app_name" >15.             <intent-filter>16.     

52、;            <action android:name="ent.action.MAIN" />17.                 <category android:name="ent.category.LAU

53、NCHER" />18.             </intent-filter>19.         </activity>20.     </application>21. </manifest>1. 答：MainActivity.javaimport android.app.Activi

54、ty;import android.content.Intent;import .Uri;import android.os.Bundle;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.TextView;public class MainActivity extends Activity private Button mCallButton;Overridep

55、rotected void onCreate(Bundle savedInstanceState) super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);mCallButton = (Button) findViewById(R.id.btn_call);mCallButton.setOnClickListener(new OnClickListener() Overridepublic void onClick(View v) / TODO Auto-generated method stub/打给

56、联通客服10010Intent intent = new Intent(Intent.ACTION_CALL,Uri.parse("tel:10010");startActivity(intent);/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;/pub

57、lic void clickHandler(View source)/TextView tv = (TextView) findViewById(R.id.show);/tv.setText("你好！现在时间：" + new java.util.Date();activity_main.xml: <RelativeLayout xmlns:android=" xmlns:tools=" android:layout_width="match_parent" android:layout_height="match_pa

58、rent" android:paddingBottom="dimen/activity_vertical_margin" android:paddingLeft="dimen/activity_horizontal_margin" android:paddingRight="dimen/activity_horizontal_margin" android:paddingTop="dimen/activity_vertical_margin" tools:context=".MainActivi

59、ty" > <TextView android:id="+id/show" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:text="string/hello_world" /> <

60、;Button android:id="+id/btn_click" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="id/show" android:text="点击我" android:onClick="clickHandler"/> <Button android:id="+id/btn_call"

61、 android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="id/btn_click" android:text="拨打电话"/></RelativeLayout>AndroidManifest.xml: <?xml version="1.0" encoding="utf-8"?><manifest xmlns

62、:android=" package="com.xiami.caipiao" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="18" /><uses-permission android:name="android.permission.CALL_PHONE"/&g

63、t; <application android:allowBackup="true" android:icon="drawable/ic_launcher" android:label="string/app_name" android:theme="style/AppTheme" > <activity android:name="com.xiami.caipiao.MainActivity" android:label="string/app_name"

64、 > <intent-filter> <action android:name="ent.action.MAIN" /> <category android:name="ent.category.LAUNCHER" /> </intent-filter> </activity> </application></manifest>2.答：打开表单模板：%FR_HOME%WebReportWEB-INFreportletsde

65、moanalyticsmulti_reportall.frm。选中总体概况按钮，在右侧的属性表中添加点击事件。具体的js代码如下：if(window.oldtd != null) window.oldtd.removeAttr("style"); var td; if($(e.target).is("button") td=$(e.target).parent().parent(); else td=$(e.target).find("button").parent().parent(); td.css("backgroun

66、d-image":"url()","background-color":"rgb(170, 223, 248)"); window.oldtd=td; 3. 答：服务器端  author  version1.002008/8/2  .ServerSocket;  .Socket;  importjava.io.IOException;  importjava.io.BufferedReader;  importjava.io.InputStreamRead

67、er;  importjava.io.PrintWriter;  publicclassServerSocketTest  privateServerSocketss;  privateSocketsocket;  privateBufferedReaderin;  privatePrintWriterout;  publicServerSocketTest()  try  ss=newServerSocket(10000);/建立服务器，监听.  System.out.println(&quo

68、t;Serverislisteningat10000.");  while(true)  socket=ss.accept();  /获取客户端IP地址  StringremoteIP=socket.getInetAddress().getHostAddress();  /获取客户端连接端口  StringremotePort=":"+socket.getLocalPort();  System.out.println("Aclinetcomein!IP:"+remoteIP

69、+remotePort);  /读取客户端输入  in=newBufferedReader(newInputStreamReader(socket.getInputStream();  Stringline=in.readLine();  System.out.println("Clientsendis:"+line);  /将服务器端信息发往客户端  out=newPrintWriter(socket.getOutputStream(),true);  out.println("YourMes

70、sageReceived!");  out.close();  in.close();  socket.close();  catch(IOExceptionex)  System.out.println(ex.getCause();  publicstaticvoidmain(Stringargs)  newServerSocketTest();  3.答：开发环境为eclipse，首先，新建两个普通的Java工程，一个命名为server_1,作为服务端；另一个命名为client_1,作为客户端。完成的

71、功能就是在客户端的控制台输入内容后，客户端将内容发送至服务端，在服务端的控制台可以看到输入的内容，当输入的内容为shutdown时，服务端和客户端都关闭通信，通信结束。服务端代码：package server_1;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.PrintWriter;import .ServerSocket;import .Socket;public class server_1 public static void

72、 main(String args) throws IOException /将异常全部抛出 ServerSocket server = new ServerSocket(10000); /用serversocket来启动服务器，并指定端口号 System.out.println("服务器启动。"); Socket socket = server.accept(); /获取客户端的socket信息 BufferedReader in = null; in = new BufferedReader(new InputStreamReader(socket.getInputStream(); /启动缓冲区 while (true) String msg = in.readLine(); / 将客户端发送来的信息存储在msg中 System.out.println(msg); if (msg.equals("shutdown") /客户端如果发