whomop.blogg.se - Android studio spinner saving value when going back

Android studio spinner saving value when going back how to#
Android studio spinner saving value when going back code#
Android studio spinner saving value when going back download#

Using Standard Spinner Models and Editors

Creating Custom Spinner Models and Editors.

Using Standard Spinner Models and Editors.

The rest of this section covers the following topics: JSpinner spinner = new JSpinner(monthModel) SpinnerListModel monthModel = new SpinnerListModel(monthStrings) String monthStrings = getMonthStrings() //get month names To create a spinner, first create its model and then pass the model into the You can change which part of the date changes either by clicking the mouse or using the arrow keys to move to another part of the date. Note that by default the first part of the date in this case, the month number changes.

Moving to the Another Date spinner, use the arrow buttons or keys to change the date.

When the focus moves out of the spinner, the displayed text changes back to the last valid value.

Moving on to the Year spinner, try typing a year over 100 years ago for example, 1800 and then click on another spinner or press the Tab key to move the focus out of the spinner.īecause this program restricts the spinner's model to numbers within 100 years of the current year, 1800 is invalid.

Note that the spinner automatically completes the month name.

Type in a valid month name for your locale for example, July.

Also note that the values do not cycle you cannot use the up arrow button or key to go from December directly to January because the standard spinner models do not support cycling. Note that the lowest value is the first month of the year (for example, January) and the highest is the last (for example, December).

With the Month spinner, use the arrow buttons or keys to cycle forward and backward through the possible values.

Alternatively, to compile and run the example yourself, consult the example index.

Android studio spinner saving value when going back download#

Java™ Web Start ( download JDK 7 or later). Click the Launch button to run SpinnerDemo using.The Another Date spinner displays one value in a range of Date objects (initially the current date) in a custom format that shows just a month and year. The Year spinner displays one value of a range of integers, initialized to the current year. The possible values for this spinner are specified using an array of strings. The Month spinner displays the name of the first month in the user's locale.

Android studio spinner saving value when going back code#

The code for the main class can be found in Here is a picture of an application named SpinnerDemo that has three spinners used to specify dates: The spinner's possible and current values are managed by its model. The editor can be any JComponent, but by default it is implemented as a panel that contains a formatted text field. However, spinners should only be used when the possible values and their sequence are obvious.Ī spinner is a compound component with three subcomponents: two small buttons and an editor. Because spinners do not display possible values only the current value is visible they are often used instead of combo boxes or lists when the set of possible values is extremely large. Unlike combo boxes, spinners do not have a drop-down list that can cover up other components. Like editable combo boxes, spinners allow the user to type in a value.

Lists in that they let the user choose from a range of values. In this section we’ll look at search patterns specific to mobile applications, including patterns for Implicit Search Explicit Search Auto-Complete Scoped Search Dynamic Search Saved, Recent, and Popular Search Forms and. We’ll explore it further, and take a fresh look at the classic search, sort, and filter techniques covered in the earlier edition. This emerging pattern is called Implicit Search. And when I am near a mall that has some of my favorite stores, RetailMeNot shows me all the deals they are running. It also knows that I often take the kids to the movies on Saturday, so it “suggests” some shows at our favorite theater.

Android studio spinner saving value when going back how to#

As our apps become more “aware” of our individual needs, they can reduce instances where we have to explicitly search for what’s relevant to us.įor instance, Google “knows” that I have a meeting downtown and tells me when to leave and how to get there. We should think of mobile search the same way. Why use an abstract button when a physical gesture would be more intuitive? Josh Clark, author of Tapworthy: Designing Great iPhone Apps (O’Reilly, 2010), says that in touch interface design, “buttons are a hack.” That’s because touch gives us more direct ways of interacting with content, like pull to refresh and pinch to zoom.