I have an Activity with 3 EditTexts and a custom view which acts a specialised keyboard to add information into the EditTexts. Currently I’m passing the Activity into the view so that I can get the currently focused edit text and update the contents from the custom keyboard. Is there a way of referencing the … Read more
In an XML file, we can assign an ID to a view like android:id=”@+id/something” and then call findViewById(), but when creating a view programmatically, how do I assign an ID? I think setId() is not the same as default assignment. setId() is extra. Can anybody correct me? 3 Answers 3
I’m writing a few custom views which share some same-named attributes. In their respective <declare-styleable> section in attrs.xml I’d like to use the same names for attributes: <?xml version=”1.0″ encoding=”utf-8″?> <resources> <declare-styleable name=”MyView1″> <attr name=”myattr1″ format=”string” /> <attr name=”myattr2″ format=”dimension” /> … </declare-styleable> <declare-styleable name=”MyView2″> <attr name=”myattr1″ format=”string” /> <attr name=”myattr2″ format=”dimension” /> … </declare-styleable> … Read more
I’m a bit confused about the roles of forceLayout(), requestLayout() and invalidate() methods of the View class. When shall they be called? 6 Answers 6
I’m trying to achieve the following programmatically (rather than declaratively via XML): <RelativeLayout…> <TextView … android:id=”@+id/label1″ /> <TextView … android:id=”@+id/label2″ android:layout_below: “@id/label1” /> </RelativeLayout> In other words, how do I make the second TextView appear below the first one, but I want to do it in code: RelativeLayout layout = new RelativeLayout(this); TextView label1 = … Read more
The LayoutInflater.inflate documentation isn’t exactly clear to me about the purpose of the attachToRoot parameter. attachToRoot: whether the inflated hierarchy should be attached to the root parameter? If false, root is only used to create the correct subclass of LayoutParams for the root view in the XML. Could someone please explain in more detail, specifically … Read more
Before the AppCompat update came out today I was able to change the color of buttons in Android L but not on older versions. After including the new AppCompat update I am unable to change the color for either version, when I do try the button just disappears. Does anyone know how to change the … Read more
First of all: yes, I read all the other threads on this topic. And not only those from this site… (you see, I’m a little frustrated) Most of them come with the advice to use android:id instead of just id in the XML file. I did. From others, I learned, that View.findViewById works different than … Read more
I’m looking for an equivalent to addHeaderView for a recycler view. Basically I want to have an image with 2 buttons be added as a header to the listview. Is there a different way to add a header view to a recycler view? An example for guidance would be helpful EDIT 2 (added fragment layouts): … Read more
I’m adding TextViews programmatically in a for-loop and add them to an ArrayList. How do I use TextView.setId(int id)? What Integer ID do I come up with so it doesn’t conflict with other IDs? 15 Answers 15
