关于Android Activity之间跳转问题(Intent)

private ImageButton i2;

　　　　  i2=findViewById(R.id.i2);
        i2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent=new Intent(UserActivity.this,User_information.class);
                startActivity(intent);
            }
        });

<?xml version="1.0" encoding="utf-8"?>
<!--从左边划出界面，从右往左-->
<set xmlns:android="http://schemas.android.com/apk/res/android" android:interpolator="@android:anim/accelerate_interpolator">
    <translate android:fromXDelta="0%p" android:toXDelta="-100%p"
        android:duration="500" />
</set>

<?xml version="1.0" encoding="utf-8"?>
<!--从右边滑入界面，从右往左-->
<set xmlns:android="http://schemas.android.com/apk/res/android" android:interpolator="@android:anim/accelerate_interpolator">
    <translate android:fromXDelta="100%p" android:toXDelta="0%p"
        android:duration="500" />
</set>

//......
startActivity(intent);
overridePendingTransition(R.drawable.in_from_right, R.drawable.out_to_left);
//......

Intent intent=new Intent(Afragment.this,Bactivity.class);

Intent intent=new Intent(getActivity(),Bactivity.class);