fun hideKeyboard(appCompatActivity: AppCompatActivity) {
        val view = appCompatActivity.currentFocus
        val imm = appCompatActivity.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
        imm.hideSoftInputFromWindow(view.windowToken, 0)
    }

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

试试这个

public void disableSoftKeyboard(final EditText v) {
    if (Build.VERSION.SDK_INT >= 11) {
        v.setRawInputType(InputType.TYPE_CLASS_TEXT);
        v.setTextIsSelectable(true);
    } else {
        v.setRawInputType(InputType.TYPE_NULL);
        v.setFocusable(true);
    }
}

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;
}

在绝望中尝试了所有的方法，结合了所有方法，当然，在Android 4.0.3中键盘不会关闭（它在Honeicomb AFAIR中确实有效）。

然后我突然发现了一个明显获胜的组合：

textField.setRawInputType(InputType.TYPE_CLASS_TEXT |InputType.TYPE_TEXT_VARIATION_NORMAL);

结合你平时的食谱

blahblaj.hideSoftInputFromWindow ...

希望这能阻止某人自杀。。我很接近它。当然，我不知道为什么它会起作用。

简单的方法家伙：试试这个。。。

private void closeKeyboard(boolean b) {

        View view = this.getCurrentFocus();

        if(b) {
            if (view != null) {
                InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
                imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
            }
        }
        else {
            InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
            imm.showSoftInput(view, 0);
        }
    }