java - 无法关闭 popUpWindow

Question

这个问题已经有答案了:

Android popup window dismissal (11 个回答)

已关闭 9 年前。

我创建了弹出窗口

 public void myPopUp()
    {

        LinearLayout myView = new LinearLayout(getApplicationContext());
         pw = new PopupWindow(getApplicationContext());
         pw.setContentView(myView);
         myView.setBackgroundColor(Color.WHITE);
         pw.setWidth(curWidth-100);
         pw.setHeight(curHeight-100);
         pw.showAtLocation(background, Gravity.CENTER, 0, 0);
   }

并覆盖后退按钮按下以解除

public boolean onKeyDown(int keyCode, KeyEvent event) {
        if (keyCode == KeyEvent.KEYCODE_BACK) {
            getNewWH();
               middle.removeView(bb);
            if(statusBG==2)
            {
                 log("statusBG = "+statusBG);
                 showFeed();
                 statusBG=1;
            }
            else
            if(statusBG==1)
                { 
                    finish();
                }
            else
            if (pw.isShowing()) {
                 log("here again");
                pw.dismiss();
                log("here");

            }
          return true;  
        }
        return super.onKeyDown(keyCode, event);
    }

正如你所理解的那样 - 当我按下后退按钮时我想关闭/隐藏弹出窗口，但现在我收到以下错误:(

05-12 12:27:15.373: ERROR/WindowManager(1259): Activity myClass.com.myClass has leaked window android.widget.PopupWindow$PopupViewContainer@44ec28a8 that was originally added here
05-12 12:27:15.373: ERROR/WindowManager(1259): android.view.WindowLeaked: Activity myClass.com.myClass has leaked window android.widget.PopupWindow$PopupViewContainer@44ec28a8 that was originally added here
05-12 12:27:15.373: ERROR/WindowManager(1259):     at android.view.ViewRoot.<init>(ViewRoot.java:247)
05-12 12:27:15.373: ERROR/WindowManager(1259):     at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:148)
05-12 12:27:15.373: ERROR/WindowManager(1259):     at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91)
05-12 12:27:15.373: ERROR/WindowManager(1259):     at android.widget.PopupWindow.invokePopup(PopupWindow.java:828)
05-12 12:27:15.373: ERROR/WindowManager(1259):     at android.widget.PopupWindow.showAtLocation(PopupWindow.java:688)
05-12 12:27:15.373: ERROR/WindowManager(1259):     at myClass.com.myClass.myPopUp(myClass.java:743)
05-12 12:27:15.373: ERROR/WindowManager(1259):     at myClass.com.myClass$15.onClick(myClass.java:724)
05-12 12:27:15.373: ERROR/WindowManager(1259):     at android.view.View.performClick(View.java:2408)
05-12 12:27:15.373: ERROR/WindowManager(1259):     at android.view.View$PerformClick.run(View.java:8816)
05-12 12:27:15.373: ERROR/WindowManager(1259):     at android.os.Handler.handleCallback(Handler.java:587)
05-12 12:27:15.373: ERROR/WindowManager(1259):     at android.os.Handler.dispatchMessage(Handler.java:92)
05-12 12:27:15.373: ERROR/WindowManager(1259):     at android.os.Looper.loop(Looper.java:123)
05-12 12:27:15.373: ERROR/WindowManager(1259):     at android.app.ActivityThread.main(ActivityThread.java:4627)
05-12 12:27:15.373: ERROR/WindowManager(1259):     at java.lang.reflect.Method.invokeNative(Native Method)
05-12 12:27:15.373: ERROR/WindowManager(1259):     at java.lang.reflect.Method.invoke(Method.java:521)
05-12 12:27:15.373: ERROR/WindowManager(1259):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
05-12 12:27:15.373: ERROR/WindowManager(1259):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
05-12 12:27:15.373: ERROR/WindowManager(1259):     at dalvik.system.NativeStart.main(Native Method)

任何人都可以帮助我并告诉我如何在我按下后退按钮时纠正弹出窗口吗？

附:抱歉我的英语不好，希望你理解我。问候，彼得。

Answer 1

通过后按关闭 PopupWIndow 但不关闭根 Activity 或 View 是为了设置焦点。popupWindow.setFocusable(true);

弹出窗口没有焦点，因此当按后退时，它会关闭主 Activity ，因为焦点位于主 Activity 上。