对于Kotlin，只需使用以下扩展:

fun EditText.showKeyboard() {
    val imm = context.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
    imm.showSoftInput(this, InputMethodManager.SHOW_IMPLICIT)
}

fun EditText.hideKeyboard() {
    val imm = context.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
    imm.hideSoftInputFromWindow(this.windowToken, 0)
}

舱单内:

android:windowSoftInputMode="stateAlwaysVisible" -初始启动键盘。 android:windowSoftInputMode="stateAlwaysHidden" -初始隐藏键盘。

我也喜欢使用“adjustPan”，因为当键盘启动时，屏幕会自动调整。

 <activity
      android:name="YourActivity"
      android:windowSoftInputMode="stateAlwaysHidden|adjustPan"/>

以下是我从Square得到的一个更可靠的解决方案:

fun View.focusAndShowKeyboard() { /** * This is to be called when the window already has focus. */ fun View.showTheKeyboardNow() { if (isFocused) { post { // We still post the call, just in case we are being notified of the windows focus // but InputMethodManager didn't get properly setup yet. val imm = context.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager imm.showSoftInput(this, InputMethodManager.SHOW_IMPLICIT) } } } requestFocus() if (hasWindowFocus()) { // No need to wait for the window to get focus. showTheKeyboardNow() } else { // We need to wait until the window gets focus. viewTreeObserver.addOnWindowFocusChangeListener( object : ViewTreeObserver.OnWindowFocusChangeListener { override fun onWindowFocusChanged(hasFocus: Boolean) { // This notification will arrive just before the InputMethodManager gets set up. if (hasFocus) { this@focusAndShowKeyboard.showTheKeyboardNow() // It’s very important to remove this listener once we are done. viewTreeObserver.removeOnWindowFocusChangeListener(this) } } }) } }

代码从这里开始。

要使键盘出现，请使用

getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);

这个方法比直接调用InputMethodManager更可靠。

要关闭它，使用

getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN);

kotlin扩展使用下面。

fun EditText.toggle() {
   requestFocus()
   val imm = context.getSystemService(Activity.INPUT_METHOD_SERVICE) as InputMethodManager
   imm.showSoftInput(this, 0)
}

通过以下方式访问:

editText.toggle()

当我阅读官方文档时，我认为这是最好的答案，只是将视图传递给参数，如您的EditText，但showSoftKeyboard似乎不能在横向上工作

private fun showSoftKeyboard(view: View) {
    if (view.requestFocus()) {
        val imm = getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
        imm.showSoftInput(view, InputMethodManager.SHOW_IMPLICIT)
    }
}

private fun closeSoftKeyboard(view: View) {
    if (view.requestFocus()) {
        val imm = getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
        imm.hideSoftInputFromWindow(view.windowToken, InputMethodManager.HIDE_NOT_ALWAYS)
    }
}