dismiss the popup window by back button

问题

I want to Dismiss the popup window by clicking outside of the popup window or by the back button, but when click on the back button my application exit's, instead of exiting the application I want to close the popup window.

here is my code,

ivmainmenu.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub

            LayoutInflater layoutInflater 
             = (LayoutInflater)getBaseContext()
              .getSystemService(LAYOUT_INFLATER_SERVICE);  
            View popupView = layoutInflater.inflate(R.layout.popupwindow, null);  
          final PopupWindow popupWindow = new PopupWindow(popupView,LayoutParams.FILL_PARENT,
                  LayoutParams.WRAP_CONTENT);  
                popupWindow.showAsDropDown(ivmainmenu, 0,14);
                popupView.setPadding(0, 0, 0, 10);
                popupWindow.showAsDropDown(ivmainmenu);

                popupWindow.setBackgroundDrawable(new BitmapDrawable());
                popupWindow.setOutsideTouchable(false);

                TextView tvpopupwork = (TextView)popupView.findViewById(R.id.tvpopupwork);
                TextView tvpopupabout = (TextView)popupView.findViewById(R.id.tvpopupabout);
                TextView tvpopupservices = (TextView)popupView.findViewById(R.id.tvpopupservices);
                TextView tvpopupcontact = (TextView)popupView.findViewById(R.id.tvpopupcontact);

                Typeface typeFace2 =  Typeface.createFromAsset(getAssets(),"fonts/arboriaboldregular.ttf");
                tvpopupwork.setTypeface(typeFace2);
                tvpopupabout.setTypeface(typeFace2);
                tvpopupservices.setTypeface(typeFace2);
                tvpopupcontact.setTypeface(typeFace2);

                tvpopupwork.setOnClickListener(new OnClickListener() {

                    @Override
                    public void onClick(View v) {
                        // TODO Auto-generated method stub
                        Intent intent = new Intent(Home.this,Ourwork.class);
                        intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
                        startActivity(intent);
                    }
                });

                tvpopupabout.setOnClickListener(new OnClickListener() {

                    @Override
                    public void onClick(View v) {
                        // TODO Auto-generated method stub
                        Intent intent = new Intent(Home.this,Aboutus.class);
                        intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
                        startActivity(intent);  
                    }
                });

                tvpopupservices.setOnClickListener(new OnClickListener() {

                    @Override
                    public void onClick(View v) {
                        // TODO Auto-generated method stub

                        Intent intent = new Intent(Home.this,Services.class);
                        intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
                        startActivity(intent);
                    }
                });

                tvpopupcontact.setOnClickListener(new OnClickListener() {

                    @Override
                    public void onClick(View v) {
                        // TODO Auto-generated method stub

                        Intent intent = new Intent(Home.this,Contact.class);
                        intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
                        startActivity(intent);
                    }
                });
                 ivmainmenu.setOnClickListener(new OnClickListener() {

                @Override
                public void onClick(View v) {
                    // TODO Auto-generated method stub

                    popupWindow.dismiss();
                }
           }
        });

Its gives me the result what I want but when I closes the menu the it does not opens again, I want to open it again so what should I do? thank you.

回答1:

Replace

popupWindow.setOutsideTouchable(false);

with this

popupWindow.setOutsideTouchable(true);
popupWindow.setFocusable(true);

回答2:

Maintain global reference for PopUpWindow and override onBackPressed()...

@Override
public void onBackPressed() {
    if (popupWindow != null && popupWindow.isShowing()) {
        popupWindow.dismiss();
    } else {
        super.onBackPressed();
    }
}

To dismiss by the same Button...

    ivmainmenu.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            if(popupWindow != null && popupWindow.isShowing()) {
                popupWindow.dismiss();
                popupWindow = null;
            } else {
                // show pop up now
            }
        }
    });

回答3:

please write onBackPressed() and have following code

if(popup!=null){
   //dismiss the popup
   popup.dismiss();
   //make popup null again
   popup=null;
}

回答4:

Try this way: Implement onBackPressed() and add

if(popup!=null) {
    popup.dismiss();
    popup=null;
}

And set your PopWindow with below:

popup.setOutsideTouchable(true);

回答5:

You can override onBackPressed() callback in your code and check to see if your pop-up is already showing(then dismiss it), else you call super to get normal behavior.

回答6:

Try this..

Use PopupWindow popupWindow as Global variable

use popup.setOutsideTouchable(true);

@Override
public void onBackPressed() {
    if (popupWindow != null) {
        if (popupWindow.isShowing()) {
            popupWindow.dismiss();
        }
    } else {
        finish();
    }
}

来源：https://stackoverflow.com/questions/21898723/dismiss-the-popup-window-by-back-button