SDK Instrumentation創建一個Note的實例

除了高層框架如Robotium的solo，我們也可以直接調用SDK底層的提供的Instrumentation的API來實現如前幾篇文章描述的創建一個note的功能。總所周知之Robotium就是基于Instrumentation的框架高層抽象實現的一個項目，所以對比《Robotium創建一個Note的實例》，我們可以看到robotium的實現比起直接調用Instrumetnation簡介了很多。這就好比你用文本編輯器直接編寫調用WIN32 API和通過Visual Studio調用高層封裝的MFC實現相同功能的應用的差別。

該測試代碼是建立在測試目標項目NotePad之下的

切記項目AndroidManifest.xml有兩個地方需要添加才能正常運行

相對之前的例子，我們這里沒有提供最后的查找到新創建的Note然后刪除的功能，因為我暫時還沒有查到在Instrumentation如何獲得一個沒有ID的ListView下面的一個TextView，當前我知道的Instrumeentation下只有findViewById的功能。

實例如下:

package come.excample.android.notepad.test;  import com.example.android.notepad.NoteEditor; import com.example.android.notepad.NotesList;   import com.example.android.notepad.R;  import android.app.Activity; import android.app.Instrumentation; import android.app.Instrumentation.ActivityMonitor; import android.content.Intent; import android.os.SystemClock; import android.test.InstrumentationTestCase; import android.view.KeyEvent; import android.widget.TextView;  public class InstrumentationTest extends InstrumentationTestCase { 	NotesList mActivity = null; 	//private static Instrumentation instrumentation = new Instrumentation(); 	 	@Override  	protected void setUp() throws Exception { 		super.setUp(); 		 		//Start the NotesList activity by instrument 		Intent intent = new Intent(); 		intent.setClassName("com.example.android.notepad", NotesList.class.getName()); 		intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 		mActivity = (NotesList) getInstrumentation().startActivitySync(intent); 	} 	 	 @Override 	    protected void tearDown()  { 	        mActivity.finish(); 	        try { 	            super.tearDown(); 	        } catch (Exception e) { 	            e.printStackTrace(); 	        } 	 } 	 	 public void testActivity() throws Exception { 	         		 	//Add activity monitor to check whether the NoteEditor activity's ready 	        ActivityMonitor am = getInstrumentation().addMonitor(NoteEditor.class.getName(), null, false); 	         	        //Evoke the system menu and press on the menu entry "Add note"; 	        getInstrumentation().sendKeyDownUpSync(KeyEvent.KEYCODE_MENU); 	        getInstrumentation().invokeMenuActionSync(mActivity, R.id.menu_add, 0); 	         	        //Direct to the NoteEditor activity 	        Activity noteEditorActivity = getInstrumentation().waitForMonitorWithTimeout(am, 60000); 	        assertEquals(NoteEditor.class,noteEditorActivity.getClass()); 	        SystemClock.sleep(3000); 	        //assertEquals(true, getInstrumentation().checkMonitorHit(am, 1)); 	         	        //Input the text of the new created note 	        TextView noteEditor = (TextView) noteEditorActivity.findViewById(R.id.note); 	        getInstrumentation().runOnMainSync(new PerformSetText(noteEditor,"Note1")); 	         	        //Save the new created note 	        getInstrumentation().sendKeyDownUpSync(KeyEvent.KEYCODE_MENU); 	        getInstrumentation().invokeMenuActionSync(noteEditorActivity, R.id.menu_save, 0);  	    } 	  	 private class PerformSetText implements Runnable { 	        TextView tv; 	        String txt; 	        public PerformSetText(TextView t,String text) { 	            tv = t; 	            txt = text; 	        } 	   	        public void run() { 	            tv.setText(txt); 	        } 	    } 	  	 //TBD, currently don't know the way to perform deleting of a menu entry by context menu options, have to roll with it 	 /* 	 private class PerformLongClick implements Runnable { 	        TextView textView; 	        public PerformLongClick(TextView object) { 	            textView = (TextView) object; 	        } 	   	        public void run() { 	            textView.performLongClick(); 	        } 	    } 	 */ 	  }