InputMethodManager im =(InputMethodManager) mEdit  
 getContext() .getSystemService(Context.INPUT_METHOD_SERVICE); 
 im.hideSoftInputFromWindow(SoftKeyTest.this.getCurrentFocus().getWindowToken(),  
      InputMethodManager.HIDE_NOT_ALWAYS); 

<activity android:name=".SoftKeyTest" 
          android:windowSoftInputMode="stateAlwaysHidden"//加入这行 
          android:label="@string/app_name"> 
       <intent-filter> 
         <action android:name="android.intent.action.MAIN" /> 
         <category android:name="android.intent.category.LAUNCHER" /> 
       </intent-filter> 
     </activity> 

mEdit.setOnClickListener(new View.OnClickListener() {        
  @Override 
  public void onClick(View v) { 
  // TODO Auto-generated method stub 
   求求你别出来了；       
  } 
 }); 

EditText et=(EditText)findViewById(R.id.edit);  
 et.setInputType(InputType.TYPE_NULL);