此代码段可以帮助：

    final InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Activity.INPUT_METHOD_SERVICE);
    if (inputMethodManager != null && inputMethodManager.isActive()) {
        if (getCurrentFocus() != null) {
            inputMethodManager.hideSoftInputFromWindow(getCurrentFocus().getWindowToken(), 0);
        }
    }

它可以根据需要以不同的方法调用（例如onPause、onResume、onRestart…）

试试这个

简单，您可以在活动中调用

 public static void hideKeyboardwithoutPopulate(Activity activity) {
    InputMethodManager inputMethodManager =
            (InputMethodManager) activity.getSystemService(
                    Activity.INPUT_METHOD_SERVICE);
    inputMethodManager.hideSoftInputFromWindow(
            activity.getCurrentFocus().getWindowToken(), 0);
}

在您的主活动中调用

 hideKeyboardwithoutPopulate(MainActivity.this);

这对我很有用

InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
    if (imm.isActive())
        imm.toggleSoftInput(InputMethodManager.HIDE_IMPLICIT_ONLY, 0);

您可以使用下面的扩展来隐藏和显示软键盘

fun Fragment.showKeyboard(view: View) {
    view.isFocusableInTouchMode = true
    view.requestFocus()
    val imm = view.context?.getSystemService(Context.INPUT_METHOD_SERVICE) 
        as InputMethodManager
    imm.showSoftInput(view, InputMethodManager.SHOW_IMPLICIT) }

fun Fragment.hideKeyboard(view: View) {
    view.clearFocus()
    val imm = view.context?.getSystemService(Context.INPUT_METHOD_SERVICE) 
       as InputMethodManager
    imm.hideSoftInputFromWindow(view.windowToken, 0) }

要调用扩展，只需按照以下片段进行操作

showKeyboard(Your edittext ID)

hideKeboard(Your edittext ID)

这对我有用：

 @Override
 public boolean dispatchTouchEvent(MotionEvent event) {
View v = getCurrentFocus();
boolean ret = super.dispatchTouchEvent(event);

if (v instanceof EditText) {
    View w = getCurrentFocus();
    int scrcoords[] = new int[2];
    w.getLocationOnScreen(scrcoords);
    float x = event.getRawX() + w.getLeft() - scrcoords[0];
    float y = event.getRawY() + w.getTop() - scrcoords[1];

    Log.d("Activity",
            "Touch event " + event.getRawX() + "," + event.getRawY()
                    + " " + x + "," + y + " rect " + w.getLeft() + ","
                    + w.getTop() + "," + w.getRight() + ","
                    + w.getBottom() + " coords " + scrcoords[0] + ","
                    + scrcoords[1]);
    if (event.getAction() == MotionEvent.ACTION_UP
            && (x < w.getLeft() || x >= w.getRight() || y < w.getTop() || y > w
                    .getBottom())) {

        InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
        imm.hideSoftInputFromWindow(getWindow().getCurrentFocus()
                .getWindowToken(), 0);
    }
}
return ret;
}

如果这里的所有其他答案都不适合您，那么还有另一种手动控制键盘的方法。

创建一个用于管理EditText的某些财产的函数：

public void setEditTextFocus(boolean isFocused) {
    searchEditText.setCursorVisible(isFocused);
    searchEditText.setFocusable(isFocused);
    searchEditText.setFocusableInTouchMode(isFocused);

    if (isFocused) {
        searchEditText.requestFocus();
    }
}

然后，确保在EditText的焦点上打开/关闭键盘：

searchEditText.setOnFocusChangeListener(new OnFocusChangeListener() {
    @Override
    public void onFocusChange(View v, boolean hasFocus) {
        if (v == searchEditText) {
            if (hasFocus) {
                // Open keyboard
                ((InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE)).showSoftInput(searchEditText, InputMethodManager.SHOW_FORCED);
            } else {
                // Close keyboard
                ((InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE)).hideSoftInputFromWindow(searchEditText.getWindowToken(), 0);
            }
        }
    }
});

现在，每当您想要打开键盘时，请手动调用：

setEditTextFocus(true);

对于结束通话：

setEditTextFocus(false);