Why not use ViewPager?
It will take care of the animations and maintain the correct lifecycle of your fragments. You will be able to update fragments as they change from within onResume().
Once you have your ViewPager set up, you can change fragments by swiping, or automatically jump to a desired fragment without worrying about hand-coding transformations, translations, etc.: viewPager.setCurrentItem(1);
Examples and more in-depth description:
https://developer.android.com/training/animation/screen-slide
In your activity layout XML:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:fillViewport="true">
<include
layout="@layout/toolbar"
android:id="@+id/main_toolbar"
android:layout_width="fill_parent"
android:layout_height="?android:attr/actionBarSize">
</include>
<com.google.android.material.tabs.TabLayout
android:id="@+id/tab_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/white"
android:minHeight="?android:attr/actionBarSize"/>
<androidx.viewpager.widget.ViewPager
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="fill_parent"/>
</LinearLayout>
In onCreate() of your Activity class:
ViewPager viewPager = null;
TabLayout tabLayout = null;
@Override
public void onCreate() {
...
tabLayout = findViewById(R.id.tab_layout);
viewPager = findViewById(R.id.pager);
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
String[] tabs = new String[]{"Tab 1", "Tab 2"};
for (String tab : tabs) {
tabLayout.addTab(tabLayout.newTab().setText(tab));
}
PagerAdapter adapter = new PagerAdapter(getSupportFragmentManager(), tabLayout);
viewPager.setAdapter(adapter);
viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
...
}
Your PagerAdapter class, which can reside within your Activity class:
public class PagerAdapter extends FragmentStatePagerAdapter {
TabLayout tabLayout;
PagerAdapter(FragmentManager fm, TabLayout tabLayout) {
super(fm);
this.tabLayout = tabLayout;
}
@Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return new your_fragment1();
case 1:
return new your_fragment2();
default:
return null;
}
return null;
}
@Override
public int getCount() {
return tabLayout.getTabCount();
}
}
Make sure to use the appropriate imports:
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentStatePagerAdapter;
import androidx.fragment.app.FragmentTransaction;
import androidx.viewpager.widget.ViewPager;
import com.google.android.material.tabs.TabLayout;