/** 
 *
 *   Hide I Said!!!
 *
 */
public static boolean hideSoftKeyboard(@NonNull Activity activity) {
    View currentFocus = activity.getCurrentFocus();
    if (currentFocus == null) {
        currentFocus = activity.getWindow().getDecorView();
        if (currentFocus != null) {
            return getSoftInput(activity).hideSoftInputFromWindow(currentFocus.getWindowToken(), 0, null);
        }
    }
    return false;
}

public static boolean hideSoftKeyboard(@NonNull Context context) {
   if(Activity.class.isAssignableFrom(context.getClass())){
       return hideSoftKeyboard((Activity)context);
   }
   return false;
}

public static InputMethodManager getSoftInput(@NonNull Context context) {
    return (InputMethodManager) context.getSystemService(Activity.INPUT_METHOD_SERVICE);
}

这些答案中有很多是不必要的复杂；这是Kotlin用户在View类上创建一个整洁的小扩展函数的解决方案。

创建一个基本的Kotlin文件（我已命名为我的KeyboardUtil.kt），并介绍以下内容：

fun View.hideKeyboard() {
  val imm = ContextCompat.getSystemService(context, InputMethodManager::class.java) as InputMethodManager
  imm.hideSoftInputFromWindow(windowToken, 0)
}

然后，您可以在任何视图上调用此命令，以轻松关闭键盘。我使用ViewBinding/DataBinding，它工作得特别好，例如：

fun submitForm() {
  binding.root.hideKeyboard()
  // continue now the keyboard is dismissed
}

public static void closeInput(final View caller) {  
    caller.postDelayed(new Runnable() {
        @Override
        public void run() {
            InputMethodManager imm = (InputMethodManager) caller.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
            imm.hideSoftInputFromWindow(caller.getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
        }
    }, 100);
}

此方法通常有效，但有一个条件：不能设置android:windowSoftInputMode=“any_of_themes”

这对我有用。。

EditText editText=(EditText)findViewById(R.id.edittext1);

放在onClick（）中的代码行下面

editText.setFocusable(false);
editText.setFocusableInTouchMode(true);

这里隐藏键盘，当我们单击按钮时，当我们触摸EditText键盘时，将显示。

(OR)

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

我几乎尝试了所有这些答案，我遇到了一些随机问题，特别是三星galaxy s5。

我最终的结果是强迫表演和隐藏，而且效果很好：

/**
 * Force show softKeyboard.
 */
public static void forceShow(@NonNull Context context) {
    InputMethodManager imm = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
    imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);
}

/**
 * Force hide softKeyboard.
 */
public static void forceHide(@NonNull Activity activity, @NonNull EditText editText) {
    if (activity.getCurrentFocus() == null || !(activity.getCurrentFocus() instanceof EditText)) {
        editText.requestFocus();
    }
    InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
    imm.hideSoftInputFromWindow(editText.getWindowToken(), 0);
    activity.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
}

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;
}