button

问题 I have tried changing the size of my button when I press it but nothing seem to work. The button is created in main.xml: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent"> <Button android:layout_alignParentLeft="true" android:layout_height="90px" android:id="@+id/button1" android:layout_marginTop="120px" android:layout_width="90px" android:textSize="45px"

问题 I have tried changing the size of my button when I press it but nothing seem to work. The button is created in main.xml: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent"> <Button android:layout_alignParentLeft="true" android:layout_height="90px" android:id="@+id/button1" android:layout_marginTop="120px" android:layout_width="90px" android:textSize="45px"

问题 I have a pop-up created with Kivy, which contains 2 buttons. User can dismiss the pop-up by pressing outside of the pop-up area (auto_dismiss = True), or by clicking the "No" button. Selecting the "Yes" button, will exit the whole application. Please see relevant code: class ExitApp(App): def exit_confirmation(self): # popup can only have one Widget. This can be fixed by adding a BoxLayout self.box_popup = BoxLayout(orientation = 'horizontal') self.box_popup.add_widget(Label(text = "Really

问题 I am very new to interactive python programming so please bear with me. I am using PyCharm with Python 3.3. I am attempting to build the following: I want to generate an a function that pulls up interactive window with two text input fields and two buttons: -The first button (START) runs a small text-search function (which I already wrote and tested), while the second button (QUIT) will quit the app. -The first text input field takes a string to be searched (ex: "Hello Stack World"), while

问题 So I've managed to get javascript code to track the cursor over images displayed on an html canvas thanks to markE, but now I'm trying to treat each one of the images as a button and display a different image when the cursor is hovering. So far, thru many permutations, I have not been able to store an image, or image pathname into an array element that also contains the points we are using to contain the path. Here is the code: <script type="text/javascript" language="JavaScript"> var canvas;

问题 I am looking to change the background color of a QToolButton. I want the shape of the button persevered along with the border. Only the background needs to change. I have tried working with the style sheet and all I get is a small section on the left and right margins with the color change. I have been attempting to utilize this code snippet: class ColorButton : public QToolButton { Q_OBJECT public: explicit ColorButton(QWidget *parent = nullptr) : QToolButton(parent) {} protected: virtual

问题 In the little GUI app below. When I use button's command option to call a function. It doesn't work like this: self.update() rather it works like this: self.update . Why so? Is is some special way that command option of a button works? I think a method or a function should be called with those braces () , unless it's a property: i.e. @name.setter: def setter(self, name): self.name = name #main object.name = "New_obj" Note: The above is just a template so you might get my point. I didn't write

问题 In the little GUI app below. When I use button's command option to call a function. It doesn't work like this: self.update() rather it works like this: self.update . Why so? Is is some special way that command option of a button works? I think a method or a function should be called with those braces () , unless it's a property: i.e. @name.setter: def setter(self, name): self.name = name #main object.name = "New_obj" Note: The above is just a template so you might get my point. I didn't write

问题 In the little GUI app below. When I use button's command option to call a function. It doesn't work like this: self.update() rather it works like this: self.update . Why so? Is is some special way that command option of a button works? I think a method or a function should be called with those braces () , unless it's a property: i.e. @name.setter: def setter(self, name): self.name = name #main object.name = "New_obj" Note: The above is just a template so you might get my point. I didn't write

问题 In the little GUI app below. When I use button's command option to call a function. It doesn't work like this: self.update() rather it works like this: self.update . Why so? Is is some special way that command option of a button works? I think a method or a function should be called with those braces () , unless it's a property: i.e. @name.setter: def setter(self, name): self.name = name #main object.name = "New_obj" Note: The above is just a template so you might get my point. I didn't write