Modify the default content of res/layout/activity_main.xml file to include both the fragments.ĭefine required constants in res/values/strings.xml file Here we will check orientation of the device and accordingly we will switch between different fragments.Ĭreate a two java files PM_Fragment.java and LM_Fragement.java under the package to define your fragments and associated methods.Ĭreate layouts files res/layout/lm_fragment.xml and res/layout/pm_fragment.xml and define your layouts for both the fragments. Modify main activity file MainActivity.java as shown below in the code. You will use Android StudioIDE to create an Android application and name it as MyFragments under a package, with blank Activity. So let's follow the following steps to similar to what we followed while creating Hello World Example − Step Here we will create two fragments and one of them will be used when device is in landscape mode and another fragment will be used in case of portrait mode. This example will explain you how to create your own Fragments. I expect 1-2, but i expect that Fragment call onStart, because, if i understand it correct, onStart called when fragment become visible.Single frame fragment is designed for small screen devices such as hand hold devices(mobiles) and it should be above android 3.0 version. I remember, they both have Stopped status (because of onStop was called). Like situation 2, Activity with Fragment are back to the foreground. I thought Fragment should be the first who called stop methods, like (Fragment onPause -> Fragment onStop - > Activity methods). When i run it, i expect another behavior. Like situation 1, but now Fragment and Activity loaded and i pressed Home: But what is 8? When i load Fragment(since 3), Activity is never on foreground. Ok, i can understand: 9 is about Fragment came to the foreground, take focus and onResume was called.
It seems like some kind of "switch focus" between Fragment and Activity. When app started, Fragment become active and user see only Fragment.ġ) There is no onResume between 2 - 3, because of Activity lose focus?Ģ) I don't think i understand what happen on 8 - 9.
One launcher Activity with one Fragment, which filled it.
I need you help to understand some points. I trace lifecycle method's callback from Activity and Fragment components and i have a lot of questions.
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