I am having an application with few fragments. I am using ViewPager
and I have an expectation of providing a different animation for ViewPager
transactions. Below is my code.
public class MainActivity extends FragmentActivity {
private ViewPager viewPager;
private int counterNumber=-1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
viewPager=(ViewPager)findViewById(R.id.viewPager);
viewPager.setAdapter(new MyPagerAdapter2(getSupportFragmentManager()));
viewPager.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
if (viewPager.getCurrentItem() == 0) {
counterNumber=0;
return true;
}
if (viewPager.getCurrentItem() == 1) {
counterNumber=1;
return true;
}
if (viewPager.getCurrentItem() == 2) {
counterNumber=2;
return true;
}
if (viewPager.getCurrentItem() == 3) {
counterNumber=3;
return true;
}
if (viewPager.getCurrentItem() == 4) {
counterNumber=4;
return true;
}
return false;
}
});
viewPager.setPageTransformer(false, new ViewPager.PageTransformer() {
@Override
public void transformPage(View page, float position) {
page.setRotation(position*-100);
}
});
}
private class MyPagerAdapter2 extends FragmentPagerAdapter {
public MyPagerAdapter2(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int pos) {
switch(pos) {
case 0: counterNumber=0; return FirstFragment1.newInstance("FirstFragment_1");
case 1: counterNumber=1;return SecondFragment1.newInstance("SecondFragment_1");
case 2: counterNumber=2;return ThirdFragment1.newInstance("ThirdFragment_1");
case 3: counterNumber=3;return FourthFragment1.newInstance("FourthFragment_1");
case 4: counterNumber=4;return FifthFragment1.newInstance("FifthFragment_1");
default: return FirstFragment1.newInstance("DefaultFragment_1");
}
}
@Override
public int getCount() {
return 5;
}
}
public void setCurrentItem(int which) {
if(viewPager != null && which >= 0 && which <= 4) {
viewPager.setCurrentItem(which);
}
}
}
However, I do not need same animation to all the screens. However I only want this custom animation in some cases, like when you are coming back from 4th screen into 3rd screen. Or else when a button is called in 3rd screen which is instructed to navigate back to 1st screen.
To do this, can I get find the called Fragment (let's say viewPager.setCurrentItem(4)
is called) and make the animation available only to that fragment?
Or else even better, is there a way for me to individually define/change the animation? Like in third Fragment when "Go to Fragment 2" button is pressed - display one animation, in first fragment when "Go to Fragment 10" is pressed, display one animation?
Anyway whatever the way I select, the ViewPager
cannot be removed because I have already applied it largely in my app.
Hope it will help you
if (position == 1) {
viewPager.setPageTransformer(true, new DepthPageTransformer());
} else {
viewPager.setPageTransformer(true, null);
}
add this code into viewPager onPageChangeListener
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.