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android.widget.Switch - on/off event listener?
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Switch inherits CompoundButton's attributes, so I would recommend the OnCheckedChangeListener
mySwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton button...
Using async/await for multiple tasks
I'm using an API client that is completely asynchrounous, that is, each operation either returns Task or Task<T> , e.g:
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Javascript Equivalent to C# LINQ Select
Following this question here :
12 Answers
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Which annotation should I use: @IdClass or @EmbeddedId
...se because with @IdClass you cannot access the entire primary key object using any field access operator. Using the @EmbeddedId you can do like this:
@Embeddable class EmployeeId { name, dataOfBirth }
@Entity class Employee {
@EmbeddedId EmployeeId employeeId;
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}
This gives a clear notion ...
How to implement a ViewPager with different Fragments / Layouts
...ewpager shows only two layouts at the max (second layout on all of the remaining fragments after 1).
6 Answers
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How to add a primary key to a MySQL table?
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After adding the column, you can always add the primary key:
ALTER TABLE goods ADD PRIMARY KEY(id)
As to why your script wasn't working, you need to specify PRIMARY KEY, not just the word PRIMARY:
alter table goods add column `id` ...
Android: remove notification from notification bar
...ave created an application and with an event I manage to add notification in android notification bar. Now I need sample how to remove that notification from notification bar on an event ??
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How to define object in array in Mongoose schema correctly with 2d geo index
I'm currently having problems in creating a schema for the document below. The response from the server always returns the "trk" field values as [Object]. Somehow I have no idea how this should work, as I tried at least all approaches which made sense to me ;-)
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Select row with most recent date per user
I have a table ("lms_attendance") of users' check-in and out times that looks like this:
11 Answers
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Select random row from a sqlite table
I have a sqlite table with the following schema:
7 Answers
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