EditText, clear focus on touch outside

My layout contains ListView , SurfaceView and EditText . When I click on the EditText , it receives focus and the on-screen keyboard pops up. When I click somewhere outside of the EditText , it still has the focus (it shouldn't). I guess I could set up OnTouchListener 's on the other views in layout and manually clear the EditText 's focus. But seems too hackish...

I also have the same situation in the other layout - list view with different types of items, some of which have EditText 's inside. They act just like I wrote above.

The task is to make EditText lose focus when user touches something outside of it.

I've seen similar questions here, but haven't found any solution...

---

I tried all these solutions. edc598's was the closest to working, but touch events did not trigger on other View s contained in the layout. In case anyone needs this behavior, this is what I ended up doing:

I created an (invisible) FrameLayout called touchInterceptor as the last View in the layout so that it overlays everything ( edit: you also have to use a RelativeLayout as the parent layout and give the touchInterceptor fill_parent attributes). Then I used it to intercept touches and determine if the touch was on top of the EditText or not:

FrameLayout touchInterceptor = (FrameLayout)findViewById(R.id.touchInterceptor);
touchInterceptor.setOnTouchListener(new OnTouchListener() {
    @Override
    public boolean onTouch(View v, MotionEvent event) {
        if (event.getAction() == MotionEvent.ACTION_DOWN) {
            if (mEditText.isFocused()) {
                Rect outRect = new Rect();
                mEditText.getGlobalVisibleRect(outRect);
                if (!outRect.contains((int)event.getRawX(), (int)event.getRawY())) {
                    mEditText.clearFocus();
                    InputMethodManager imm = (InputMethodManager) v.getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 
                    imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
                }
            }
        }
        return false;
    }
});

Return false to let the touch handling fall through.

It's hacky, but it's the only thing that worked for me.

---

Building off of Ken's answer, here's the most modular copy-and-paste solution.

No XML needed.

Put it in your Activity and it'll apply to all EditTexts including those within fragments within that activity.

@Override
public boolean dispatchTouchEvent(MotionEvent event) {
    if (event.getAction() == MotionEvent.ACTION_DOWN) {
        View v = getCurrentFocus();
        if ( v instanceof EditText) {
            Rect outRect = new Rect();
            v.getGlobalVisibleRect(outRect);
            if (!outRect.contains((int)event.getRawX(), (int)event.getRawY())) {
                v.clearFocus();
                InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
                imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
            }
        }
    }
    return super.dispatchTouchEvent( event );
}

---

For the EditText's parent view, let the following 3 attributes be " true ":
clickable , focusable , focusableInTouchMode .

If a view want to receive focus, it must satisfy these 3 conditions.

See android.view :

public boolean onTouchEvent(MotionEvent event) {
    ...
    if (((viewFlags & CLICKABLE) == CLICKABLE || 
        (viewFlags & LONG_CLICKABLE) == LONG_CLICKABLE)) {
        ...
        if (isFocusable() && isFocusableInTouchMode()
            && !isFocused()) {
                focusTaken = requestFocus();
        }
        ...
    }
    ...
}

Hope it helps.

链接地址: http://www.djcxy.com/p/24214.html

上一篇: EditText的首字母大写

下一篇: EditText，清除重点在外面触摸