DialogFragment Android Pass Arguments Or Parameters? – Easy & Quick 1 Min Tutorial!

In this short post I will show [ DialogFragment Android" Pass arguments ] you how to dynamically provide arguments to DialogFragment from another Fragment or Activity.

Introduction

Kotlin In Android Development

Kotlin is a programming" language that is widely used for Android" app development. It is a statically typed language that is expressive, concise, and powerful, and it is fully interoperable with Java", the primary language for Android" development. Kotlin" was developed by JetBrains and is officially supported by Google for Android" development.

One of the main advantages of Kotlin" for Android" development is that it helps developers write safer, more readable, and more concise code. It has features such as null-safety, improved type inference, and concise syntax, which can help reduce the amount of boilerplate code and make it easier to write and maintain. Kotlin" is also fully compatible with the Android" ecosystem, including tools such as Android" Studio and the Android" build system.

To get started with Kotlin" for Android" development, you will need to install Android" Studio and configure it to use Kotlin". You can then create a new Android" project using Kotlin", or you can convert an existing Java" project to Kotlin". There are also many resources available online, such as tutorials, documentation, and sample code, to help you learn Kotlin" and start building Android" apps with it.

Java vs Kotlin In Android Development

ava and Kotlin are both programming" languages that can be used for Android" app development. Java" is the official language for Android" development, and it has been used for many years. Kotlin" is a newer programming language that is also fully supported by Google for Android" development.

Both Java" and Kotlin" have their own strengths and weaknesses, and which one you choose to use for your Android" project will depend on your specific needs and preferences. Here are some of the main differences between the two languages:

• Syntax: Kotlin" has a more concise and expressive syntax than Java", which can make it easier to read and write. It also has features such as type inference, null-safety, and improved control flow, which can help reduce the amount of boilerplate code and make your code more readable.
• Compatibility: Kotlin" is fully interoperable with Java", which means you can use Kotlin" and Java" code together in the same project. You can also easily convert Java" code to Kotlin" and vice versa.
• Performance: Both Java" and Kotlin" have similar performance characteristics, and the difference between the two is generally not significant.
• Community: Java" has a larger and more established community than Kotlin", which means there are more resources and support available for Java" developers. However, Kotlin" is growing in popularity and has a strong and active community as well.

Ultimately, the choice between Java" and Kotlin" for Android" development will depend on your own personal preferences and the needs of your project. Both languages are powerful and capable, and either one can be used effectively for Android" app development.

Ionic Framework For Android Development

onic is a framework for building cross-platform mobile apps using web technologies such as HTML", CSS, and JavaScript. It is based on Cordova, which is a framework that allows developers to access native device features such as the camera, GPS, and accelerometer from a web app.

Ionic provides a range of tools and features for building mobile apps, including a command-line interface" (CLI), a UI library, and a range of integrations with other tools and services. It is designed to be easy to use and provides a fast development cycle, allowing developers to build and test apps quickly.

To build an Android" app with Ionic, you will need to install the Ionic CLI and set up your development environment. You will then use the CLI to create a new Ionic project and add the Android" platform. Once the project is set up, you can use Ionic’s UI library and Cordova’s APIs to build and test your app. You can then use the CLI to build and deploy your app to the Google Play Store or other app stores.

Ionic Advantages

There are several advantages to using Ionic for Android" app development:

1. Cross-platform: Ionic allows you to build apps that can run on multiple platforms, including Android", iOS, and the web. This can save time and resources, as you can build one codebase and deploy it to multiple platforms.
2. Web technologies: Ionic is based on web technologies such as HTML", CSS, and JavaScript, which are widely used and familiar to many developers. This can make it easier to learn and use Ionic, as you may already be familiar with these technologies.
3. Fast development cycle: Ionic provides a fast development cycle, with features such as live reloading and a wide range of tools and integrations. This can allow you to build and test your app quickly and iteratively.
4. Extensive documentation: Ionic has extensive documentation, including guides, tutorials, and API reference, which can make it easier to get started and learn how to use the framework.
5. Active community: Ionic has a large and active community of developers, which can provide support and resources for learning and using the framework.

Overall, Ionic can be a good choice for Android" app development if you want to build cross-platform apps quickly and efficiently, and if you are comfortable with web technologies. It can be a powerful and flexible tool for building a wide range of apps.

Android

Android" is a mobile operating system developed by Google. It is based on the Linux" kernel and is designed primarily for touchscreen mobile devices such as smartphones and tablets. Android" is the most widely used mobile operating system in the world, with a large and diverse ecosystem of applications, games", and other content.

One of the key features of Android" is its open-source nature, which allows developers to create and distribute their own applications for the platform. Android" is also highly customizable, with a wide range of launchers, home screens, and other interface elements that can be modified to suit the user’s preferences.

In addition to running on smartphones and tablets, Android" is also used on a variety of other devices, such as televisions, cars, and wearables. It is constantly being updated and improved, with new versions released regularly to add new features and address security issues.

Android Fragment

A Fragment is a piece of an application’s user" interface or behavior that can be placed in an Activity. It represents a portion of the user" interface and a portion of the Activity’s code. You can think of a Fragment as a modular section of an activity, which has its own lifecycle, receives its own input events, and which you can add or remove while the activity is running (sort of like a “subactivity” that you can reuse in different activities).

Fragments were introduced in Android" 3".0 (API level 11) as a way to support tablets and other large-screen devices. They allow developers to create reusable components that can be combined to create a complete user" interface, or to support a multi-pane layout on larger screens, such as tablets.

To use fragments in your app, you will need to include the Android" Support Library in your project. This library provides compatibility for fragments on devices running older versions of Android". You can then create fragments by extending the Fragment class and adding the necessary code to define the fragment’s layout and behavior. You can add fragments to your activity by creating a fragment transaction, which can add, remove, or replace fragments in the activity’s layout.

Android DialogFragment

DialogFragment is a subclass of Fragment that displays a modal window, floating on top of the activity’s window. It is used to present a small amount of information or to ask the user" to make a decision. DialogFragments are particularly useful when you want to display a dialog that is targeted to a specific fragment, rather than the entire activity.

DialogFragments can be used to display simple dialogs, such as alert dialogs or progress indicators, or more complex dialogs that contain forms or other custom content. They can also be used to display a dialog that returns a result to the fragment that called it.

To use a DialogFragment, you will need to create a subclass that extends DialogFragment and overrides at least one method, such as onCreateDialog, to create the dialog that the fragment will display. You can then show the DialogFragment by calling show() and passing it a FragmentManager and a tag. The DialogFragment will be displayed as a modal window floating on top of the activity’s window.

DialogFragment Android Pass Arguments

A unique subclass of fragment that is intended specifically for hosting and producing dialogues is called a DF. Although it is not strictly necessary, hosting your dialogue within a fragment enables the FragmentManager to control its status and automatically restore it in the event of a configuration change.

A fragment that shows a dialogue window hovering above the window for its activity. Based on the state of the fragment, this fragment contains a Dialog object, which it displays when necessary. Here, rather of making direct calls to the dialogue, the API should be used to control the dialogue (choose when to display, conceal, or dismiss it).

DF takes a number of actions to ensure that the fragment lifecycle continues to take precedence over the Dialog. Keep in mind that dialogues are often independent entities that have their own window, get their own input events, and frequently decide when to vanish (by receiving a back key event or the user" clicking on a button).

Pass Arguments To Fragment Android

Let’s create static public newInstance method in your code.

    static public TestDialogFragment newInstance(String testStringArg) {
        TestDialogFragment f = new TestDialogFragment();

        // Add provided argument to Bundles
        Bundle args = new Bundle();
        args.putString("testStringArgKey", testStringArg);
        f.setArguments(args);
        return f;
    }

Kotlin DialogFragment

Please find the same code written in Kotlin":

 fun newInstance(testStringArg: String?): TestDialogFragment {
        val f = TestDialogFragment()

        // Add provided argument to Bundles
        val args = Bundle()
        args.putString("testStringArgKey", testStringArg)
        f.setArguments(args)
        return f
    }

And next in the onCreateDialog method just get this argument value like in the code below.

    @Override
    public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
        ...
        final String testStringArgValue = getArguments().getString("testStringArgKey");
        ...
    }

Version in Kotlin" language:

    fun onCreateDialog(@Nullable savedInstanceState: Bundle?): Dialog {
        val testStringArgValue: String = getArguments().getString("testStringArgKey")
    }

Finally

Now you can pass arguments from your entry Fragment or Activity.

DialogFragment newFragment = TestDialogFragment.newInstance("BigDataETL is awesome!");

Summary

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