1、南昌航空大學實驗報告二0一三年一月六日課程名稱：移動終端編程技術實驗名稱:Android組件通信和后臺服務班級：: 同組人：指導教師評定： 簽名：一、實驗目的了解使用Intent進行組件通信的原理，掌握使用Intent啟動Activity的方法； 掌握獲取Activity返回值的方法；了解Intent過濾器的原理與匹配機制；了解Service的原理和用途；掌握進程內服務的管理方法；掌握服務的隱式啟動和顯式啟動方法；二、實驗工具EclipseMyEclipse+ ADT + Android2.2 SDK;三、實驗題目1.編程實現(1)功能描述：主界面上有一個 登錄”按鈕，點擊登錄”按鈕后打開一個

2、新的 Activity ;新 的Activity上面有輸入用戶名和密碼的控件，在用戶關閉這個 Activity后，將用 戶輸入的用戶名和密碼傳遞到主界面中。編程要點：主界面的 Activity 命名為 MainActivity ;啟動新 的 Activity 命名為 UserLoginActivity ;分別使用顯示啟動和隱式啟動的方式，啟動新的Activity ;用戶名中不能出現“ ”符號，同時長度不超過12個字符；密碼使用密碼文本顯示方式，即顯示為“ * ”，同時只能為數字； 返回的用戶名和密碼要以Toast的方式顯示出來； MainActivity 和 UserLoginActivity

3、 中各個生命周期的回調函數中要以 Log.i方式顯示日志信息。2.編程實現(1)功能描述：編程建立一個簡單的進程內服務，實現比較兩個整數大小的功能。服務提供 IntCompare(Int, Int)函數，輸入兩個整數，輸出較大的整數。編程要點：主界面的Activity命名為MainActivity ；提供兩個EditText,分別輸入兩個 整數；提供一個Botton,啟動比較過程；提供一個 TextView,顯示較大的整數；分別使用啟動方式和綁定方式使用 Service；分別使用 Handle和AsyncTask更新TextView中的內容。四、實驗步驟1 .詳細工程結構及部分代碼顯式和隱式都

4、在其中Lab3_l_intent6 BFC士 rn.te5t. n<huj,l MainActivity.java|J'| U5e-rLoginActivrtyjava J Lf layout login.xmlCl ma in.xml» valueriCi strings，xml,1 An droid M a rr«t.)ciTil結果:Intent樂式苜錄施式苜錄代碼：MainActivity.javapublic class MainActivity extends Activity protected int SUBACTIVITY1 = 1;priv

5、ate static String TAG = "MainActivity"Button button1,button2;public void onCreate(Bundle savedInstanceState) super.onCreate(savedInstanceState);setContentView(R.layout.main);學習文檔僅供參考Log.i(TAG , "(1) onCreate()");button1 = (Button) this.findViewById(R.id.button1);button2 = (Button

6、) this.findViewById(R.id.button2);button1.setOnClickListener(new View.OnClickListener() public void onClick(View v) Intent intent = new Intent(MainActivity.this,UserLoginActivity.class);Toast.makeText(getApplicationContext(), " 顯示啟動 ", Toast.LENGTH_SHORT).show();startActivityForResult(inte

7、nt, SUBACTIVITY1););button2.setOnClickListener(new View.OnClickListener()public void onClick(View v) Intent intent = new Intent("com.example.test");Toast.makeText(getApplicationContext(), " 隱式啟動 ", Toast.LENGTH_SHORT).show();startActivityForResult(intent, SUBACTIVITY1););protecte

8、d void onActivityResult(int requestCode, int resultCode, Intent data) super.onActivityResult(requestCode, resultCode, data);if (resultCode = RESULT_OK) Uri uriData = data.getData();Toast.makeText(getApplicationContext(), uriData.toString(), Toast.LENGTH_SHORT).show(); else Toast.makeText(getApplicat

9、ionContext(), " 用戶名和密碼為空",Toast.LENGTH_SHORT).show();Override /可視生命周期開始時被調用，對用戶界面進行必要的更改public void onStart() super.onStart();Log.i(TAG , "(2) onStart()");Override /在onStart()后被調用，用于恢復onSaveInstanceState()保存的用戶界面 信息public void onRestoreInstanceState(Bundle savedInstanceState) sup

10、er.onRestoreInstanceState(savedInstanceState);Log.i(TAG , "(3) onRestoreInstanceState()");Override 在活動生命周期開始時被調用，恢復被onPause()f亭止的用于界面更新的資源public void onResume() super.onResume();Log.i(TAG , "(4) onResume()");Override /在onResume()后被調用，保存界面信息public void onSaveInstanceState(Bundle s

11、avedInstanceState) super.onSaveInstanceState(savedInstanceState);Log.i(TAG , "(5) onSaveInstanceState()");Override/在重新進入可視生命周期前被調用，載入界面所需要的更改信息public void onRestart() super.onRestart();Log.i(TAG , "(6) onRestart()");Override/在活動生命周期結束時被調用，用來保存持久的數據或釋放占用的資源。public void onPause() s

12、uper.onPause();Log.i(TAG , "(7) onPause()");Override / 在可視生命周期結束時被調用，一般用來保存持久的數據或釋放占用的資源public void onStop() super.onStop();Log.i(TAG , "(8) onStop()");Override / 在完全生命周期結束時被調用，釋放資源，包括線程、數據連接等public void onDestroy() super.onDestroy();Log.i(TAG , "(9) onDestroy()");UserL

13、oginActivity,javapublic class UserLoginActivity extends Activity EditText username,password;Button submit,reset;private static String TAG = "MainActivity"protected void onCreate(Bundle savedInstanceState) / TODO Auto-generated method stubsuper.onCreate(savedInstanceState);setContentView(R.

14、layout.login);Log.i(TAG , "(1) onCreate()");username=(EditText)this.findViewById(R.id.username);password=(EditText)this.findViewById(R.id.password);submit=(Button)this.findViewById(R.id.submit);reset=(Button)this.findViewById(R.id.reset);username.setFocusable(true);username.setOnKeyListene

15、r(new OnKeyListener()public boolean onKey(View v, int keyCode, KeyEvent event) / TODO Auto-generated method stubint unicodeChar = event.getUnicodeChar();if(unicodeChar= 64)return true;elsereturn false;);submit.setOnClickListener(new View.OnClickListener() public void onClick(View v) / TODO Auto-gene

16、rated method stubString name =username.getText().toString();String pass=password.getText().toString();String uriString=" 用戶名： "+name+" 密碼： "+pass;Uri data = Uri.parse(uriString);Intent result = new Intent(null, data);setResult(RESULT_OK, result);finish(););reset.setOnClickListene

17、r(new View.OnClickListener() public void onClick(View v) / TODO Auto-generated method stubsetResult(RESULT_CANCELED, null);finish(););Override /可視生命周期開始時被調用，對用戶界面進行必要的更改public void onStart() super.onStart();Log.i(TAG , "(2) onStart()");Override /在onStart()后被調用，用于恢復onSaveInstanceState()保存的用

18、戶界面信息public void onRestoreInstanceState(Bundle savedInstanceState) super.onRestoreInstanceState(savedInstanceState);Log.i(TAG , "(3) onRestoreInstanceState()");Override在活動生命周期開始時被調用，恢復被onPause()f亭止的用于界面更新的資源public void onResume() super.onResume();Log.i(TAG , "(4) onResume()");Ove

19、rride /在onResume()后被調用，保存界面信息public void onSaveInstanceState(Bundle savedInstanceState) super.onSaveInstanceState(savedInstanceState);Log.i(TAG , "(5) onSaveInstanceState()");Override/在重新進入可視生命周期前被調用，載入界面所需要的更改信息public void onRestart() super.onRestart();Log.i(TAG , "(6) onRestart()&qu

20、ot;);Override/在活動生命周期結束時被調用，用來保存持久的數據或釋放占用的資源。public void onPause() super.onPause();Log.i(TAG , "(7) onPause()");Override / 在可視生命周期結束時被調用，一般用來保存持久的數據或釋放占用的資源public void onStop() super.onStop();Log.i(TAG , "(8) onStop()");Override / 在完全生命周期結束時被調用，釋放資源，包括線程、數據連接等public void onDestr

21、oy() super.onDestroy();Log.i(TAG , "(9) onDestroy()");2. 詳細工程結構及部分代碼顯式和隱式都在其中 ：( 顯式啟動 )學習文檔 僅供參考 1號 Lab3 2 Service 彥 src 由 crT*nchu,edUd5e-rvi ceJ ComreSerYicejevaJ| MainAdivityjayaj .> layoutp main.xml & valuesCl strings,xnril三 ArrdroidMarifest.xml結果：部分代碼：MainActivity.javapublic cl

22、ass MainActivity extends Activity /* Called when the activity is first created. */public static int maxNum;public static Handler handler=new Handler。；private static TextView result=null;private static Button compare=null;private static Button reset=null;private static EditText one=null;private stati

23、c EditText two=null;public static void UpdateGUI(int refreshDouble)maxNum=refreshDouble;handler.post(RefreshLable);private static Runnable RefreshLable=new Runnable() public void run() result.setText(String.valueOf(maxNum);public void onCreate(Bundle savedInstanceState) final Bundle mybundle=new Bun

24、dle(); super.onCreate(savedInstanceState);setContentView(R.layout.main);final Intent intent=new Intent(MainActivity.this,CompareService.class); result=(EditText)findViewById(R.id.result);compare=(Button)findViewById(R.id pare);reset=(Button)findViewById(R.id.reset); one=(EditText)findViewById(R.id.o

25、ne); two=(EditText)findViewById(R.id.two);compare.setOnClickListener(new OnClickListener() public void onClick(View v) mybundle.putString("one", one.getText().toString(); mybundle.putString("two", two.getText().toString();intent.putExtras(mybundle); startService(intent););reset.s

26、etOnClickListener(new OnClickListener() public void onClick(View v) one.setText(null); two.setText(null); result.setText(null); );CompareService.javapublic class CompareService extends Service private Thread workThread;Bundle bundle=null;int one=0,two=0;public void onCreate() super.onCreate();workTh

27、read = new Thread(null,backgroudWork,"WorkThread");Overridepublic void onStart(Intent intent, int startId) super.onStart(intent, startId);bundle=intent.getExtras();String c1=bundle.getString("one");String c2=bundle.getString("two");if(!c1.toString().equals("")

28、&&!c2.toString().equals("")one=Integer.parseInt(c1);two=Integer.parseInt(c2);if (!workThread.isAlive() workThread.start();public IBinder onBind(Intent intent) return null;private Runnable backgroudWork = new Runnable()Overridepublic void run() int randomDouble =IntCompare(one,two);

29、MainActivity.UpdateGUI(randomDouble); stopSelf();int IntCompare(int a,int b) if(a>=b) return a;elsereturn b;(隱式啟動)/La b3_2_B i nd Servi c a & src/田 .nchu. EindServiceJ Compar&Servicejava MainArtivit.jaivaJ r-layoutmain>xmlJ & values string e xml亂 ndrcidManifest.xml部分代碼：MainAc

30、tivity.javapublic class MainActivity extends Activity 結果:/* Called when the activity is first created. */ private boolean isBound = false;private CompareService compareService;int a=0,b=0;Overridepublic void onCreate(Bundle savedInstanceState) super.onCreate(savedInstanceState);setContentView(R.layo

31、ut.main);final TextView result=(TextView)findViewById(R.id.result);Button compare=(Button)findViewById(R.id pare);Button reset=(Button)findViewById(R.id.reset);final EditText one=(EditText)findViewById(R.id.one);final EditText two=(EditText)findViewById(R.id.two);if(!isBound)Intent serviceIntent=new

32、 Intent(MainActivity.this,CompareService.class); bindService(serviceIntent,mConnection,Context.BIND_AUTO_CREATE); isBound=true;compare.setOnClickListener(new OnClickListener() public void onClick(View v) String c1=one.getText().toString();String c2=two.getText().toString();if(!c1.equals(""

33、)&&!c2.equals("")a=Integer.parseInt(c1);b=Integer.parseInt(c2);result.setText(String.valueOf(compareService.IntCompare(a, b););reset.setOnClickListener(new OnClickListener()public void onClick(View v) one.setText(null);two.setText(null);result.setText(null););private ServiceConnection mConnection=new ServiceConnection() Overridepublic void onServiceConnected(ComponentName name, IBinder service) / TODO Auto-generated method stubcompareServi