Difference between android.app.Fragment and android.support.v4.app.Fragment

What is the difference between android.app.Fragment and android.support.v4.app.Fragment, and what are the circumstances in which each should be used?

Here is Solutions:

We have many solutions to this problem, But we recommend you to use the first solution because it is tested & true solution that will 100% work for you.

Solution 1

android.support.v4.app.Fragment is the Fragment class in the android support library, which is a compatibility package that allows you to use some of the newer features of Android on older versions of Android.

android.app.Fragment is the Fragment class in the native version of the Android SDK. It was introduced in Android 3 (API 11).

If you want to make your app use fragments, and want to target devices before API 11, you must use android.support.v4.app.Fragment. However, if you’re only targeting devices running API 11 or above, you can use android.app.Fragment.

Edit: the OS-contained android.app.Fragment is now deprecated (as of API level 28), and everyone should move to using the support library implementations.

Solution 2

As of 2018:

From android.app.Fragment documentation:

This class was deprecated in API level 28.
Use the Support Library Fragment for consistent behavior across all devices and access to Lifecycle.

So support fragments (android.support.v4.app.Fragment) should be used everywhere instead of native fragments(android.app.Fragment) now.

Solution 3

I use android.support.v4.app.Fragment exclusively.

All the apps I write need to support right back to Android 2.3 and this is the easiest way to do it.

If you’re supporting 11+ then stick to android.app.Fragment.

Solution 4

If your application is targeted for API 11 or above, You can use android.app.Fragment and your APK file will be smaller.

Otherwise, add the android.support.v4.app.Fragment library to your project in order to support older android API versions (Android 3.x).

Solution 5

android.support.v4.app.Fragment is a library that you can use to get backwards-compatibility for older API version.

Fragments were added on API level 11 (along with other features) you should include that library to extend those function to pre-API 11 devices. That is a useful library and I suggest having a look at ActionBarSherlock, which extends the action bar to pre-API v11 devices.

Solution 6

If your application is targeted for API 11 or above level, You can use android.app.Fragment and it will reduce the APK size.
Otherwise use android.support.v4.app.Fragment

Note: Use and implement solution 1 because this method fully tested our system.
Thank you 🙂

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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