final InputMethodManager keyboard = (InputMethodManager) ctx.getSystemService(Context.INPUT_METHOD_SERVICE);
keyboard.toggleSoftInput(InputMethodManager.SHOW_FORCED,0);

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。

要强制显示软键盘，可以使用

EditText yourEditText= (EditText) findViewById(R.id.yourEditText);
yourEditText.requestFocus();
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.showSoftInput(yourEditText, InputMethodManager.SHOW_IMPLICIT);

为了移除EditText上的焦点，你需要一个虚拟视图来抓取焦点。

关闭它，你可以使用

InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(yourEditText.getWindowToken(), 0);

这适用于在对话框中使用它

public void showKeyboard(){
    InputMethodManager inputMethodManager = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
    inputMethodManager.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);
}

public void closeKeyboard(){
    InputMethodManager inputMethodManager = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
    inputMethodManager.toggleSoftInput(InputMethodManager.HIDE_IMPLICIT_ONLY, 0);
}

我也有同样的问题。editText可视性从GONE变为VISIBLE后，我必须立即设置焦点并显示软键盘。我使用以下代码实现了这一点:

new Handler().postDelayed(new Runnable() {
            
    public void run() {
//        ((EditText) findViewById(R.id.et_find)).requestFocus();
//              
        EditText yourEditText= (EditText) findViewById(R.id.et_find);
//        InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
//        imm.showSoftInput(yourEditText, InputMethodManager.SHOW_IMPLICIT);

        yourEditText.dispatchTouchEvent(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(), MotionEvent.ACTION_DOWN, 0f, 0f, 0));
        yourEditText.dispatchTouchEvent(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(), MotionEvent.ACTION_UP, 0f, 0f, 0));                          
    }
}, 200);

它为我工作100ms的延迟，但失败没有任何延迟或只有1ms的延迟。

注释部分代码显示了另一种方法，它只适用于某些设备。我在OS版本2.2(模拟器)、2.2.1(真实设备)和1.6(模拟器)上进行了测试。

这种方法使我免去了很多痛苦。

芬兰湾的科特林:

val imm = context.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager

fun showKeyboard() {
        imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0)
    }

fun hideKeyboard() {
        imm.hideSoftInputFromWindow(phoneNoInputTxt.windowToken, 0);
    }

那你想怎么叫就怎么叫!

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)
}