PopupWindow $BadTokenException: Unable to add window -- token null is not valid

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最佳答案

you are showing your popup too early. You may post a delayed runnable for showatlocation in Onresume , Give it a try

Edit: This post seems to have the same problem answered Problems creating a Popup Window in Android Activity

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A popup's parent can't itself be a popup. Both of their parents must be the same. So, if you create a popup inside a popup, you must save the parent's popup and make it a parent.

here's an example

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There are two scenarios when this exception could occur. One is mentioned by nandeesh. Other scenario is mentioned here: http://blackriver.to/2012/08/android-annoying-exception-unable-to-add-window-is-your-activity-running/

Make sure you handle both of them

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Same problem happened with me when I try to show a popup menu in an activity.

I also got the same exception but I encountered problems and resolved it by providing the right context.

// at this line
Dialog dialog = new Dialog(getApplicationContext());

Use

YourActivityName.this instead of getApplicationContext()

and yes it worked for me may it will help someone else.

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The correct way is to call popupwindow.show() at onWindowFocusChanged():

@Override
protected void onCreate(Bundle savedInstanceState) {
View view = LayoutInflater.from(mContext).inflate(R.layout.popup_window_layout, new LinearLayout(mContext), true);
popupWindow = new PopupWindow(view, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
popupWindow.setContentView(view);
}


@Override
public void onWindowFocusChanged(boolean hasFocus) {
if (hasFocus) {
popupWindow.showAtLocation(parentView, Gravity.BOTTOM, 0, 0);
}
}

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Try to show the pop like below

findViewById(R.id.main_layout).post(new Runnable() {
public void run() {
mPopupWindow.showAtLocation(findViewById(R.id.main_layout), Gravity.CENTER, 0, 0);
Button close = (Button) customView.findViewById(R.id.btn_ok);
close.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mPopupWindow.dismiss();
doOtherStuff();
}
});
}
});

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Try to use it

LayoutInflater inflater = (LayoutInflater).getApplicationContext().getSystemService(LAYOUT_INFLATER_SERVICE);
View view = inflate.from(YourActivity.this).inflate(R.layout.yourLayout, null);

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Use:

YourActivityName.this

Instead of:

getApplicationContext();

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use this method before show

public static ViewGroup getActivityFirstLayout(Context ctx)
{
return (ViewGroup)((ViewGroup) ActivityMaster.getActivity(ctx).findViewById(android.R.id.content)).getChildAt(0);
}


private boolean activityIsOk(Activity activity)
{
boolean s1 = !(activity == null || activity.isFinishing());


if(s1)
{
View v = LayoutMaster.getActivityFirstLayout(activity);
return v.isShown() && ViewCompat.isLaidOut(v);
}


return false;
}

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Following many hours of search and testing i found following solution(by implementing different SO solutions) here it what didn't failed in any case i was getting crash.

     Runnable runnable = new Runnable() {
@Override
public void run() {


//displayPopup,progress dialog or what ever action. example


ProgressDialogBox.setProgressBar(Constants.LOADING,youractivityName.this);
}};

Where logcat is indicating the crash is happening.. start a runnable .in my case at receiving broadcast.

runOnUiThread(new Runnable() {
@Override
public void run() {
if(!isFinishing()) {
new Handler().postAtTime(runnable,2000);
}
}
});

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try to show popup like this

new Handler().postDelayed(new Runnable(){


public void run() {
popupWindow.showAtLocation(context.getWindow().getDecorView(), Gravity.CENTER,0,0);
}


}, 200L);