enter image description hereI create a plain text and text view but when I write their id in main activity they appear as an unresolved reference in spite of I import android.widget.TextView and EditText. Could you please help me about it ?
Thanks for all interest.
enter image description here
You cant access an element like that.
Use something like this in ikinciAktivite.kt
val text= findViewById<TextView>(R.id.textView2).text
In main activity
val text= view.findViewById<TextView>(R.id.textView2).text
Related
I have dynamic button label, which changes everytime you click it. The problem is, when text on the button changes, the same goes with button width. For this reason I set fixed width for my button.
After that, another problem appeared. Content is centered within button, so on every change image and label move a bit. For this reason I tried to position everything to the left side to reduce content trembling.
I looked through docs and found that button widget supports anchor option to position content. However, when I try it, I'm getting error:
_tkinter.TclError: unknown option "-anchor"
I found another option, justify, but result is the same:
_tkinter.TclError: unknown option "-justify"
Anyone knows how to deal with it? I'll share my code with you:
self.btnServiceIo = ttk.Button(
top_buttons_frame,
text="Usługa automatyczna",
image=self.ioBtnImg_off,
compound=tk.LEFT,
width=30,
justify=tk.LEFT,
anchor='w')
self.btnServiceIo.pack(side=tk.LEFT)
self.btnServiceIo.bind("<ButtonRelease>", self.IObuttonToggle)
(I don't use justify and anchor at the same time, I just posted them together to show you the way I'm using it)
I'll post the picture of my app for your attention. My client would like to have not only toggle image which states the status of some service, but also text information nearby.
For ttk buttons you can set the anchor option in the ttk style, see the anchor entry on this page.
So for example:
import tkinter as tk
from tkinter import ttk
from PIL import Image, ImageTk
root = tk.Tk()
s = ttk.Style()
s.configure('TButton', anchor=tk.W)
buttonImage = Image.open('test.png')
buttonPhoto = ImageTk.PhotoImage(buttonImage)
btnServiceIo = ttk.Button(
root,
text="Usługa automatyczna",
image=buttonPhoto,
compound=tk.LEFT,
width=30)
btnServiceIo.pack(side=tk.LEFT)
root.mainloop()
Answer from #fhdrsdg was almost perfect, but it messed with some of my simple buttons with text only, centered in the button. I had to make dedicated style for my button as following:
# Access ttk style object
s = ttk.Style()
# Set dedicated style for button, derived from main button class
s.configure('service-io.TButton', anchor=tk.W)
self.ioBtnImg_off = tk.PhotoImage(file='../img/io.png')
self.ioBtnImg_on = tk.PhotoImage(file='../img/io_on.png')
self.btnServiceIo = ttk.Button(
top_buttons_frame,
text="Usługa automatyczna",
image=self.ioBtnImg_off,
compound=tk.LEFT,
width=30,
style='service-io.TButton' # use dedicated style
)
THIS IS THE BUTTON CODE WHICH I WANTED TO CLICK
I used this code.
login_btn1 = driver.find_elements_by_tag_name('button')
login_btn1.submit()
but they are showing the error:
AttributeError: 'list' object has no attribute 'submit'
can someone help me with this please.Where am i going wrong?
By using find_elements_by_tag_name you are looking for all 'button' elements which will return a list.
You need to replace this with find_element_by_tag_name to retrieve a single 'button' element. (this will be the first button element found)
Alternatively, in the likely situation that there is more than one button on the page, you can select by class name using find_element_by_class_name('cdp-view-all-button') or another method from the selenium docs.
When you write this :
login_btn1 = driver.find_elements_by_tag_name('button')
Now login_btn1 is a list of Web Element. you can have method which are applicable for list.
Since you want to click on button and button is a web element. you can't do login_btn1.click() .
If you want to click on a single button, first you have to find the locator then there are multiple ways to click on it such as :
button = WebDriverWait(browser, 20).until(EC.element_to_be_clickable((By.XPATH, "//button[#data-track-app='discovery']")))
button.click()
If the provided xpath is Unique in DOM then the above code would work.
I need to create a couple of message boxes in blue prism for a demo. This is how far I have gotten:
1. I am using the code stage
2. In the Inputs tab I have declared my Message and have given it a value
3. In the Code tab I have declared: `MessageBox.Show(Message)`
When I validate the code I get a compiler error: "
'MessageBox' is not declared "
Guidance is greatly appreciated. Thanks in advance!
You need to import System.Windows.Forms to your namespace in order to reference the MessageBox object the way you currently have in your code.
Open the initialize page of your object. Right-click the Description box (located in the upper-left of your page, by default) and select "Properties".
Click over to the Code Options tab.
Add a Namespace Import by clicking the Add button to the right of the "Namespace Imports" table. Set the new line item's value to "System.Windows.Forms".
Reset and re-run and you should be good to go to use MessageBox().
I have got a task to write a calculator on wicket and I have faced with some problems.
How to get button value(1,2,3...-,+,/,*) handle it(multiply or divide) and output a result to text field to user? Could you help me, please.
In swing it is really easy, e.g. new JtextField.setText("Shalom world!"); How I can do the same in wicket?
Thank you
Use a TextField, or Label, to display the calculator value. The model for the component should get an object that you update on each click of a button. A quick way to do this would be to create a member variable in your class that holds your total and use a PropertyModel to get the value of the member variable. If you are using AjaxLink, you will need to add the TextField to your target on click of each button and you need setOutputMarkupId to be true.
I am new in Android app development and using Java language.
My problem is every time I make a TextView or Button there is a triangle with the exclamation mark below them.
and when I click it I saw a message saying:
hardcoded string “Button”, should use #string resource
I have two activities, in my main activity there is a Button that when you click it you will go in second activity.
But when I go to my main.java to make a code for the button. There's always the above shown error. I think the eclipse can't find the id of my button and same for my TextView they have same error message.
Here is the code I made:
Button b = FindViewById(R.id.button1);
I also add:
Button b = (Button) FindViewById(R.id.button1);
I am using the latest eclipse classic and ADT august issue. The platform is Android 4.1 API 16.
You shouldn't hardcode the "text" on the widgets use the strings resources ie., strings in the strings.xml to set the text. Declare the "text" you want to display as a string in strings.xml and access it using #string/your_string_name in the layout file.
Notice the id of the button, which is rounded in red. You have to use this id when you want to call it in a method, for an example
Button b = (Button) FindViewById(R.id.button1);
Furthermore, check whether your graphical layout matches with the image I have provided.
Just try your code again with these changes.
Your main.java would look like this.
I am a newbie too, but I believe I got this. So basically what's happening here, java wants you to put your hardcodes in string.xml. so that when accessing it, you will use the given methods below before:
.
But this is how it should be.
Let's start by string.xml
Then come back to your activity_main.xml