Android中點擊隱藏軟鍵盤最佳方法——Android開發之路4

 Android中點擊隱藏軟鍵盤最佳方法

 實現功能：點擊EditText，軟鍵盤出現並且不會隱藏，點擊或者觸摸EditText以外的其他任何區域，軟鍵盤被隱藏；

1、重寫dispatchTouchEvent()方法，獲取當前觸摸事件為DOWN的時候隱藏軟鍵盤

@Override
    public boolean dispatchTouchEvent(MotionEvent ev) {
        //Finger touch screen event
        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
            // get current focus,Generally it is EditText
            View view = getCurrentFocus();
            if (isShouldHideSoftKeyBoard(view, ev)) {
                hideSoftKeyBoard(view.getWindowToken());
            }
        }
        return super.dispatchTouchEvent(ev);
    }

 

2、isShouldHideInput()方法；

/**
     * Judge what situation hide the soft keyboard,click EditText view should show soft keyboard
     * @param v Incident event
     * @param event 
     * @return
     */
    private boolean isShouldHideSoftKeyBoard(View view, MotionEvent event) {
        if (view != null && (view instanceof EditText)) {
            int[] l = { 0, 0 };
            view.getLocationInWindow(l);
            int left = l[0], top = l[1], bottom = top +view.getHeight(), right = left
                    + view.getWidth();
            if (event.getX() > left && event.getX() < right
                    && event.getY() > top && event.getY() < bottom) {
                // If click the EditText event ,ignore it
                return false;
            } else {
                return true;
            }
        }
        // if the focus is EditText,ignore it; 
        return false;
    }

3、hideSoftKeyBoard()方法；

/**
     * hide soft keyboard
     * @param token
     */
    private void hideSoftKeyBoard(IBinder token) {
        if (token != null) {
            InputMethodManager im = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
            im.hideSoftInputFromWindow(token,
                    InputMethodManager.HIDE_NOT_ALWAYS);
        }
    }