ToDOO | simple todo app made in SwiftUI , to practice Combine | Frontend Framework library
kandi X-RAY | ToDOO Summary
kandi X-RAY | ToDOO Summary
A simple todo app made in SwiftUI, to practice Combine and Data flow in the app.
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QUESTION
I am trying to make an application about to do. But there is an issue. I write some text to the text field. But When I add a new text field it clears the text filed's text. And when I delete the TextEditingController it fixes the issue. But then when I try to slide it right or left it clears the text again.
Here is the code
...ANSWER
Answered 2020-Mar-27 at 04:18You can copy paste run full code below
Each item need a TextEditingController
For demo purpose, I remove background color
Step 1: declare a List listTexttCtrl = [TextEditingController()];
Step 2: In FloatingActionButton
, add listTexttCtrl.add(TextEditingController());
QUESTION
I passed the color resourses to a Class which held the List Items as
...ANSWER
Answered 2018-Sep-17 at 00:31From my point of knowledge , You can get Color using the below code by passing the context from the activity in which adapter is called as a parameter :
QUESTION
I have this problem and it shows me following error
please help me: I get a NullPointerException in init2(). Apperently sms is null. I don't understand the problem
Process: com.example.android.projectdestage, PID: 11049 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.android.projectdestage/com.example.android.projectdestage.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.view.View.setOnClickListener(android.view.View$OnClickListener)' on a null object reference at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2984) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3045) at android.app.ActivityThread.-wrap14(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1642) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6776) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1518) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1408) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.view.View.setOnClickListener(android.view.View$OnClickListener)' on a null object reference at com.example.android.projectdestage.MainActivity.init2(MainActivity.java:60) at com.example.android.projectdestage.MainActivity.onCreate(MainActivity.java:38) at android.app.Activity.performCreate(Activity.java:6956) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1126) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2927) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3045) at android.app.ActivityThread.-wrap14(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1642) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6776) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1518) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1408)
****this is my main activity****
...ANSWER
Answered 2018-Jul-27 at 11:43Button sms = (Button) findViewById(R.id.sms);
returns null
This means he can not find R.id.sms in your activity_main.xml
layout.
Maybe a typo or copy paste error? Check if this button's ID in this file really is sms
.
Also if you have multiple layouts for different screen sizes, etc. Check all of them.
QUESTION
I need to update value isCompleted in my model. But my code works only for todo item with id=1. If i click to another checkbox of todo item id remains the same (id=1). How to connect my checkbox for another items.
...ANSWER
Answered 2018-Apr-06 at 18:45you need to use a nested form. You have 2 Objects
Project has_many :todos
Then you need to build a form, form_for @project
,
Query the todos
in your projects#new
show all the todos
children, f.fields_for :todos
read more at
http://guides.rubyonrails.org/form_helpers.html#nested-forms
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