我有一个解决方案来隐藏键盘:

InputMethodManager imm = (InputMethodManager) getSystemService(
    Activity.INPUT_METHOD_SERVICE);
imm.toggleSoftInput(InputMethodManager.HIDE_IMPLICIT_ONLY, 0);

这里在showFlag的位置传递HIDE_IMPLICIT_ONLY，在hiddenFlag的位置传递0。 它会强制关闭软键盘。

我修改了Andre Luis IM的解决方案，我做到了这一点:

我创建了一个实用工具方法来隐藏软键盘，就像Andre Luiz IM做的那样:

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

但不是注册一个OnTouchListener为每个视图，给一个糟糕的性能，我注册了OnTouchListener只为根视图。由于事件冒泡直到被消费(EditText是默认消费它的视图之一)，如果它到达根视图，那是因为它没有被消费，所以我关闭软键盘。

findViewById(android.R.id.content).setOnTouchListener(new OnTouchListener() {
    @Override
    public boolean onTouch(View v, MotionEvent event) {
        Utils.hideSoftKeyboard(activity);
        return false;
    }
});

下面是fje回答的另一个变体，它解决了sosite提出的问题。

这里的思想是在Activity的dispatchTouchEvent方法中处理向下和向上操作。在按下操作时，我们会记录当前聚焦的视图(如果有的话)，以及触摸是否在其中，并为以后保存这两个信息。

在向上操作中，我们首先分派，以允许另一个视图潜在地获得焦点。如果在那之后，当前聚焦的视图是最初聚焦的视图，向下触摸在那个视图内，然后我们让键盘打开。

如果当前聚焦视图与最初聚焦视图不同并且它是一个EditText，那么我们也让键盘打开。

否则我们关闭它。

综上所述，其工作原理如下:

when touching inside a currently focused EditText, the keyboard stays open when moving from a focused EditText to another EditText, the keyboard stays open (doesn't close/reopen) when touching anywhere outside a currently focused EditText that is not another EditText, the keyboard closes when long-pressing in an EditText to bring up the contextual action bar (with the cut/copy/paste buttons), the keyboard stays open, even though the UP action took place outside the focused EditText (which moved down to make room for the CAB). Note, though, that when you tap on a button in the CAB, it will close the keyboard. That may or may not be desirable; if you want to cut/copy from one field and paste to another, it would be. If you want to paste back into the same EditText, it would not be. when the focused EditText is at the bottom of the screen and you long-click on some text to select it, the EditText keeps focus and therefore the keyboard opens like you want, because we do the "touch is within view bounds" check on the down action, not the up action. private View focusedViewOnActionDown; private boolean touchWasInsideFocusedView; @Override public boolean dispatchTouchEvent(MotionEvent ev) { switch (ev.getAction()) { case MotionEvent.ACTION_DOWN: focusedViewOnActionDown = getCurrentFocus(); if (focusedViewOnActionDown != null) { final Rect rect = new Rect(); final int[] coordinates = new int[2]; focusedViewOnActionDown.getLocationOnScreen(coordinates); rect.set(coordinates[0], coordinates[1], coordinates[0] + focusedViewOnActionDown.getWidth(), coordinates[1] + focusedViewOnActionDown.getHeight()); final int x = (int) ev.getX(); final int y = (int) ev.getY(); touchWasInsideFocusedView = rect.contains(x, y); } break; case MotionEvent.ACTION_UP: if (focusedViewOnActionDown != null) { // dispatch to allow new view to (potentially) take focus final boolean consumed = super.dispatchTouchEvent(ev); final View currentFocus = getCurrentFocus(); // if the focus is still on the original view and the touch was inside that view, // leave the keyboard open. Otherwise, if the focus is now on another view and that view // is an EditText, also leave the keyboard open. if (currentFocus.equals(focusedViewOnActionDown)) { if (touchWasInsideFocusedView) { return consumed; } } else if (currentFocus instanceof EditText) { return consumed; } // the touch was outside the originally focused view and not inside another EditText, // so close the keyboard InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); inputMethodManager.hideSoftInputFromWindow( focusedViewOnActionDown.getWindowToken(), 0); focusedViewOnActionDown.clearFocus(); return consumed; } break; } return super.dispatchTouchEvent(ev); }

你可以很容易地覆盖onKey()事件在活动和片段隐藏键盘。

@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {

    if (event.getAction() == MotionEvent.ACTION_DOWN) {
        if (keyCode == event.KEYCODE_ENTER) {

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

            return true;
        }
    }
    return false;
}

setupUI((RelativeLayout) findViewById(R.id.activity_logsign_up_RelativeLayout));

将该方法传递到布局文件中。您必须选择常用的XML布局文件。 因为，键盘隐藏适用于整个布局。

public void setupUI(View view) {
        // Set up touch listener for non-text box views to hide keyboard.
        if (!(view instanceof EditText)) {
            view.setOnTouchListener(new View.OnTouchListener() {
                public boolean onTouch(View v, MotionEvent event) {
                    hideSoftKeyboard(Your Context); // Pass your context
                    return false;
                }
            });
        }
        //If a layout container, iterate over children and seed recursion.
        if (view instanceof ViewGroup) {
            for (int i = 0; i < ((ViewGroup) view).getChildCount(); i++) {
                View innerView = ((ViewGroup) view).getChildAt(i);
                setupUI(innerView);
            }
        }
    }

你可以使用这段代码，使用你的主布局Id而不是"mainRelativeLayout"

//hide Soft keyboard on click outside  the input text
    findViewById(R.id.mainRelativeLayout).setOnClickListener(new 
View.OnClickListener() {
        @Override
        public void onClick(View v) {
            InputMethodManager im = (InputMethodManager) 
getSystemService(INPUT_METHOD_SERVICE);
            im.hideSoftInputFromWindow(getCurrentFocus().getWindowToken(), 
0);
        }

    });