android - 弹出窗口在外部触摸时关闭不起作用

Question

在否决重复投票之前，请检查我到目前为止所做的尝试。
我试图在外部触摸时关闭弹出窗口。我已经尝试了所有可用的解决方案，但都没有用。

第一次尝试:

pwindo.setBackgroundDrawable(new BitmapDrawable());
            pwindo.setFocusable(true);
            pwindo.setOutsideTouchable(true);

第二次尝试:

pwindo.setBackgroundDrawable(new ColorDrawable());
            pwindo.setFocusable(true);
            pwindo.setOutsideTouchable(true);

第三次尝试:

pwindo.setBackgroundDrawable(new ColorDrawable());
            pwindo.setFocusable(true);
            pwindo.setOutsideTouchable(false);

第四次尝试:

        pwindo.setFocusable(true);
        pwindo.setOutsideTouchable(false);  

第五次尝试:

        pwindo.setOutsideTouchable(true);  

第六次尝试:

        pwindo.setOutsideTouchable(false);  

第七次尝试:

        pwindo.setFocusable(true);  

没有任何效果。

更新:

public void addFlyout()
{
    try {
        LayoutInflater inflater = TabActivity.this.getLayoutInflater();
        Display display = getWindowManager().getDefaultDisplay();
        Method mGetRawH = Display.class.getMethod("getRawHeight");
        Method mGetRawW = Display.class.getMethod("getRawWidth");
        int rawHeight = (Integer) mGetRawH.invoke(display);
        View view = inflater.inflate(R.layout.flyout_list_layout,
                (ViewGroup) findViewById(R.id.flyoutLayoutList));
        Dialog dialog = new Dialog(TabActivity.this);
        pwindo = new PopupWindow(view, 340, rawHeight- actionBar.getHeight(), true);
        pwindo.showAtLocation(view, Gravity.RIGHT | Gravity.TOP, 0, actionBar.getHeight());
        pwindo.setBackgroundDrawable(new ColorDrawable(Color.RED));
       // pwindo.setTouchable(true);
        pwindo.setOutsideTouchable(true);
        pwindo.setTouchInterceptor(new View.OnTouchListener() {
            @Override public boolean onTouch(View v, MotionEvent event)
            {

                if (event.getAction() == MotionEvent.ACTION_OUTSIDE)
                {
                    pwindo.dismiss();
                    //Log.e(TAG, "some event happened outside window: action outside");
                    return true;
                }
               // Log.e(TAG, "some event happened outside window");
                return false;
            }
        });

        listFlyout = (ListView) view.findViewById(R.id.list_slideList);
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(TabActivity.this, R.layout.drawer_item, R.id.content, tabs);
        listFlyout.setAdapter(adapter);
    }
    catch (Exception ex)
    {
        ex.printStackTrace();
    }
} 

和

@Override
    public void onTabSelected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
        // When the given tab is selected, switch to the corresponding page in
        // the ViewPager.
        try {
            if(tab.getPosition() == 4)
            {
                addFlyout();
            }
            else
            mViewPager.setCurrentItem(tab.getPosition());
        }
        catch (Exception ex)
        {
            ex.printStackTrace();
        }
    }

Answer 1

在 PopupWindow 上设置背景可确保在其范围外单击可将其关闭。

showAtLocation(...):

public void showAtLocation(IBinder token, int gravity, int x, int y) {
    ....

    preparePopup(p);

    ....
}

preparePopup(...) 检查是否设置了背景。如果是，您传递的内容 View (在构造函数中)将添加到自定义 FrameLayout。然后在这个自定义 FrameLayout 上设置背景:

if (mBackground != null) {
    ....

    // when a background is available, we embed the content view
    // within another view that owns the background drawable
    PopupViewContainer popupViewContainer = new PopupViewContainer(mContext);
    PopupViewContainer.LayoutParams listParams = new PopupViewContainer.LayoutParams(
                ViewGroup.LayoutParams.MATCH_PARENT, height
        );
    popupViewContainer.setBackground(mBackground);
    popupViewContainer.addView(mContentView, listParams);

    ....
} else {
    ....
}

由于您正在调用 setBackgroundDrawable(...) 在 showAtLocation(...) 之后，preparePopup(... ) 不会将内容 View 放在 PopupViewContainer 中。

PopupViewContainer 还覆盖了 onTouchEvent(...) 以提供“dismissed-when-touched-outside”行为:

@Override
public boolean onTouchEvent(MotionEvent event) {
    final int x = (int) event.getX();
    final int y = (int) event.getY();

    if ((event.getAction() == MotionEvent.ACTION_DOWN)
            && ((x < 0) || (x >= getWidth()) || (y < 0) || (y >= getHeight()))) {
        dismiss();
        return true;
    } else if (event.getAction() == MotionEvent.ACTION_OUTSIDE) {
        dismiss();
        return true;
    } else {
        return super.onTouchEvent(event);
    }
}

显然，您只需要提供背景，并在调用 showAtLocation(...) 之前提供它。