<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
  android:id="@+id/traceroute_rootview" 
  android:layout_width="fill_parent" 
  android:layout_height="fill_parent" 
  android:background="@color/white" 
  android:clickable="true" 
  android:gravity="center_horizontal" 
  android:orientation="vertical" > 
</LinearLayout> 

findViewById(R.id.traceroute_rootview).setOnClickListener(this); 

@Override 
public void onClick(View v) { 
  switch (v.getId()) { 
  case R.id.traceroute_rootview: 
     InputMethodManager imm = (InputMethodManager) 
     getSystemService(Context.INPUT_METHOD_SERVICE); 
     imm.hideSoftInputFromWindow(v.getWindowToken(), 0); 
    break; 
  } 
}

@Override 
public boolean dispatchTouchEvent(MotionEvent ev) { 
  if (ev.getAction() == MotionEvent.ACTION_DOWN) { 
    View v = getCurrentFocus(); 
    if (isShouldHideInput(v, ev)) { 
 
      InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); 
      if (imm != null) { 
        imm.hideSoftInputFromWindow(v.getWindowToken(), 0); 
      } 
    } 
    return super.dispatchTouchEvent(ev); 
  } 
  // 必不可少，否则所有的组件都不会有TouchEvent了 
  if (getWindow().superDispatchTouchEvent(ev)) { 
    return true; 
  } 
  return onTouchEvent(ev); 
} 

public boolean isShouldHideInput(View v, MotionEvent event) { 
  if (v != null && (v instanceof EditText)) { 
    int[] leftTop = { 0, 0 }; 
    //获取输入框当前的location位置 
    v.getLocationInWindow(leftTop); 
    int left = leftTop[0]; 
    int top = leftTop[1]; 
    int bottom = top + v.getHeight(); 
    int right = left + v.getWidth(); 
    if (event.getX() > left && event.getX() < right 
        && event.getY() > top && event.getY() < bottom) { 
      // 点击的是输入框区域，保留点击EditText的事件 
      return false; 
    } else { 
      return true; 
    } 
  } 
  return false; 
} 

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
  android:id="@+id/traceroute_rootview" 
  android:layout_width="fill_parent" 
  android:layout_height="fill_parent" 
  android:background="@color/white" 
  android:clickable="true" 
  android:gravity="center_horizontal" 
  android:orientation="vertical" > 
</LinearLayout> 

findViewById(R.id.traceroute_rootview).setOnClickListener(this); 

@Override 
public void onClick(View v) { 
  switch (v.getId()) { 
  case R.id.traceroute_rootview: 
     InputMethodManager imm = (InputMethodManager) 
     getSystemService(Context.INPUT_METHOD_SERVICE); 
     imm.hideSoftInputFromWindow(v.getWindowToken(), 0); 
    break; 
  } 
}

@Override 
public boolean dispatchTouchEvent(MotionEvent ev) { 
  if (ev.getAction() == MotionEvent.ACTION_DOWN) { 
    View v = getCurrentFocus(); 
    if (isShouldHideInput(v, ev)) { 
      InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); 
      if (imm != null) { 
        imm.hideSoftInputFromWindow(v.getWindowToken(), 0); 
      } 
    } 
    return super.dispatchTouchEvent(ev); 
  } 
  // 必不可少，否则所有的组件都不会有TouchEvent了 
  if (getWindow().superDispatchTouchEvent(ev)) { 
    return true; 
  } 
  return onTouchEvent(ev); 
} 

public boolean isShouldHideInput(View v, MotionEvent event) { 
  if (v != null && (v instanceof EditText)) { 
    int[] leftTop = { 0, 0 }; 
    //获取输入框当前的location位置 
    v.getLocationInWindow(leftTop); 
    int left = leftTop[0]; 
    int top = leftTop[1]; 
    int bottom = top + v.getHeight(); 
    int right = left + v.getWidth(); 
    if (event.getX() > left && event.getX() < right 
        && event.getY() > top && event.getY() < bottom) { 
      // 点击的是输入框区域，保留点击EditText的事件 
      return false; 
    } else { 
      return true; 
    } 
  } 
  return false; 
}