When you add a fragment to an activity programmatically, you have an opportunity to pass data to the fragment as arguments. You do this with the fragment’s setArguments() method. setArguments() receives a bundle as a an argument. A bundle is a map of key-value pairs, where the key is a string, and the value can be a String, a primitive type such as a number or boolean, arrays of such types, and anything that implements Android’s parcelable interface.
- [Narrator] When you add a fragment…to an activity programmatically, you have…an opportunity to pass data to the fragment as arguments.…You do this with the fragment's set arguments method,…which accepts a bundle object.…A bundle is a map of key value pairs,…where the key is a string, and the value can be a string,…a primitive type, like a number, or a Boolean,…arrays of such types, and anything that…implements an interface named parcelable.…I'll demonstrate this in the project pass arguments.…
In this version of my project,…I'm adding a fragment to my activity…with some Java code when the user touches a button.…In order to pass an argument, you need a string key,…and that key typically is defined in the fragment itself.…It has to be available both to the fragment,…and to anything in the application…that's passing the argument in.…I'm going to make a public field here,…with public, static, final, string,…and I'll name this message underscore key.…
The value can be anything, and I'll name it…the same, but in lowercase.…
Author
David Gassner
Released
9/1/2016- Configuring Android Studio
- Understanding fragments
- Creating a fragment class and layout
- Adding and removing fragments with Java
- Creating layouts for multiple screens
- Understanding arguments and callback methods
- Passing arguments to a fragment
- Choosing layout at runtime
- Displaying dialogs with fragments
- Using fragments for managing dialogs, shared preferences, and more
Skill Level Intermediate
Duration
Views
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Introduction
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Welcome1m 4s
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What you should know1m 50s
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Using the exercise files3m 44s
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1. Getting Started
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Understanding fragments3m 17s
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2. Display Fragments in Activities
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Display a fragment with XML3m 10s
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Add a fragment with Java3m 50s
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Remove a fragment with Java6m 12s
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3. Manage Fragments at Runtime
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Pass arguments to a fragment5m 18s
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Choose layout at runtime3m 21s
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4. Communication between Fragments and Activities
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5. Display Dialogs with Fragments
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Display a custom dialog5m 1s
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Pass arguments to the dialog4m 16s
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6. Other Uses of Fragments
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Create a ViewPager adapter4m 56s
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Conclusion
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Next steps1m 11s
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Video: Pass arguments to a fragment