A lot of Android developers are confused or dont even know about the difference between FragmentPagerAdapter and getting to work can be frustrating sometimes. Memory leaks can happen quite easily by using these adapters.To lock the screen orientation change of any screen (activity) of your android application makes your activity display only in one mode i. e. either Landscape or Portrait. This is the simplest way to handle screen orientation but not generally recommended. android fragmentstatepageradapter orientation change
After every change of the orientation it puts the Fragments into an array of FragmentManager and never cleaned it. So it goes up to over 100mb memory usage after change the orientation many times. Using the onSaveInstanceState method is a
When i change the oriention it deletes 3 or 4 pages, i have to swipe right 3 or 4 times in order to see other pages. Changing from to portrait works almost everytime, no pages get deleted, but if i go from portrait to landscape the pages disappear Handling Orientation Changes on Android Introduction. Handling orientation changes on Android is one of the most frustrating things to deal with as an Android engineer. I hope to make that challenge just a little bit easier and to help you better understand exactly whats happening when you rotate your Android device.android fragmentstatepageradapter orientation change Android ViewPager, FragmentPagerAdapter and orientation changes One thing I love doing is solving problems. Give me a problem I cant solve and I will most likely lose my sleep over it. Give me a problem I cant solve and I will most likely lose my sleep over it.
Overview. Layout that allows the user to swipe left and right through pages of content which are usually different fragments. This is a common navigation mode to use instead of ActionBar Tabs with Fragments. . Usage android fragmentstatepageradapter orientation change Implementation of PagerAdapter that uses a Fragment to manage each page. This class also handles saving and restoring of fragment's state. This class also handles saving and restoring of fragment's state. Some device configurations can change during runtime (such as screen orientation, keyboard availability, and when the user enables multiwindow mode). When such a change occurs, Android restarts the running Activity ( onDestroy() is called, followed by onCreate()). The restart behavior is designed to help your application adapt to new Then I was debugging to see when FragmentPagerAdapter invokes getItem() and it happens the method is not called after orientation change event. So looks like it ViewPager holds references to old Fragments. This is just my assumption.