Created
February 17, 2017 15:51
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| public class MainActivity extends AppCompatActivity | |
| { | |
| private static final long MOVE_DEFAULT_TIME = 1000; | |
| private static final long FADE_DEFAULT_TIME = 300; | |
| private FragmentManager mFragmentManager; | |
| @Override | |
| protected void onCreate(Bundle savedInstanceState) | |
| { | |
| super.onCreate(savedInstanceState); | |
| setContentView(R.layout.activity_main); | |
| ButterKnife.bind(this); | |
| mFragmentManager = getSupportFragmentManager(); | |
| loadInitialFragment(); | |
| Handler handler = new Handler(); | |
| handler.postDelayed(this::performTransition, 1000); | |
| } | |
| private void loadInitialFragment() | |
| { | |
| Fragment initialFragment = Fragment1.newInstance(); | |
| FragmentTransaction fragmentTransaction = mFragmentManager.beginTransaction(); | |
| fragmentTransaction.replace(R.id.fragment_container, initialFragment); | |
| fragmentTransaction.commit(); | |
| } | |
| private void performTransition() | |
| { | |
| if (isDestroyed()) | |
| { | |
| return; | |
| } | |
| Fragment previousFragment = mFragmentManager.findFragmentById(R.id.fragment_container); | |
| Fragment nextFragment = Fragment2.newInstance(); | |
| FragmentTransaction fragmentTransaction = mFragmentManager.beginTransaction(); | |
| // 1. Exit for Previous Fragment | |
| Fade exitFade = new Fade(); | |
| exitFade.setDuration(FADE_DEFAULT_TIME); | |
| previousFragment.setExitTransition(exitFade); | |
| // 2. Shared Elements Transition | |
| TransitionSet enterTransitionSet = new TransitionSet(); | |
| enterTransitionSet.addTransition(TransitionInflater.from(this).inflateTransition(android.R.transition.move)); | |
| enterTransitionSet.setDuration(MOVE_DEFAULT_TIME); | |
| enterTransitionSet.setStartDelay(FADE_DEFAULT_TIME); | |
| nextFragment.setSharedElementEnterTransition(enterTransitionSet); | |
| // 3. Enter Transition for New Fragment | |
| Fade enterFade = new Fade(); | |
| enterFade.setStartDelay(MOVE_DEFAULT_TIME + FADE_DEFAULT_TIME); | |
| enterFade.setDuration(FADE_DEFAULT_TIME); | |
| nextFragment.setEnterTransition(enterFade); | |
| View logo = ButterKnife.findById(this, R.id.fragment1_logo); | |
| fragmentTransaction.addSharedElement(logo, logo.getTransitionName()); | |
| fragmentTransaction.replace(R.id.fragment_container, nextFragment); | |
| fragmentTransaction.commitAllowingStateLoss(); | |
| } | |
| } |
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