我有一个带有 BottomNavigationView 的Activity。它有2个项目(片段)。第一个片段必须从左进入并向左退出。类似地,第二个片段必须从左进入向右然后向右退出。这两个片段都可以正确输入,但以相反的方式退出。在这里看看:
enter_from_left.xml:
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="300"
android:shareInterpolator="false">
<translate
android:interpolator="@android:anim/accelerate_decelerate_interpolator"
android:fromXDelta="-100%"
android:toXDelta="0%"
>
</translate>
</set>
exit_to_left.xml:
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="300"
android:shareInterpolator="false"
>
<translate
android:interpolator="@android:anim/accelerate_decelerate_interpolator"
android:fromXDelta="0%"
android:toXDelta="-100%"
>
</translate>
</set>
enter_from_right.xml:
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="300"
android:shareInterpolator="false">
<translate
android:interpolator="@android:anim/accelerate_decelerate_interpolator"
android:fromXDelta="100%"
android:toXDelta="0%"
>
</translate>
</set>
exit_to_right.xml:
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="300"
android:shareInterpolator="false">
<translate
android:interpolator="@android:anim/accelerate_decelerate_interpolator"
android:fromXDelta="0%"
android:toXDelta="100%">
</translate>
</set>
代码:(两个片段的退出动画效果相反)
private BottomNavigationView.OnNavigationItemSelectedListener mOnNavigationItemSelectedListener
= new BottomNavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem item) {
switch (item.getItemId()) {
case R.id.sendSms:
FragmentTransaction transaction=getSupportFragmentManager().beginTransaction();
transaction.setCustomAnimations(R.anim.enter_from_left,R.anim.exit_to_left);
transaction.replace(R.id.fragcontainer,new SendSmsFragment());
transaction.commit();
return true;
case R.id.receiveSms:
FragmentTransaction transaction1=getSupportFragmentManager().beginTransaction();
transaction1.setCustomAnimations(R.anim.enter_from_right,R.anim.exit_to_right);
transaction1.replace(R.id.fragcontainer,new ReceiveSmsFragment());
transaction1.commit();
return true;
}
return false;
}
};
答案 0 :(得分:0)
尝试exit_to_right:transaction.setCustomAnimations(R.anim.enter_from_left,R.anim.exit_to_right);