软键盘隐藏

工具类

object KeyBoardUtils {
    fun showKeyboard(view: View?) {
        view?.context?.let {
            val inputMethodManager =
                it.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
            inputMethodManager.showSoftInput(view, 0)
        }

    }
    fun hideKeyboard(view: View?){
        view?.context?.let {
            val inputMethodManager =
                it.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
            inputMethodManager.hideSoftInputFromWindow(view.windowToken, InputMethodManager.RESULT_UNCHANGED_SHOWN)
        }
    }
    /**
     * 关闭软键盘
     */
    private fun  hideKeyboard(activity:Activity?) {
        activity?.let {
            val imm = it.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
            if(imm.isActive && it.currentFocus !=null){
                if (it.currentFocus?.windowToken !=null) {
                    imm.hideSoftInputFromWindow(it.currentFocus?.windowToken, InputMethodManager.HIDE_NOT_ALWAYS);
                }
            }
        }

    }
}

2 调用时机

  override fun finish() {
        super.finish()
        KeyBoardUtils.hideKeyboard(etPassword)
    }

注意事项：在ondestory 中调用，不起作用