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我試圖做一個ViewPager應用程序，我想充氣類，我只能膨脹這樣一個xml：充氣片段類
@Override
public Object instantiateItem(ViewGroup container, int position) {
// TODO Auto-generated method stub
LayoutInflater inflater = (LayoutInflater)container.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View v = null;
switch(position){
case 0:
v = inflater.inflate(R.layout.lista, null);
break;
case 1:
v = inflater.inflate(R.layout.dos, null);
break;
case 2:
v = inflater.inflate(R.layout.tres, null);
break;
}
((ViewPager)container).addView(v, 0);
return v;
}
但我想這樣的事情
v = inflater.inflate(ListaFragment(), null);
而這也將是我ListaFragment活動
package com.germankatz.etacerfragments;
import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
public class ListaFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.dos,
container, false);
TextView Numero = (TextView) getView().findViewById(R.id.textView1);
Numero.setText("Funciono!!!!");
return v;
}
}
我沒有發現這樣的事情所以這就是爲什麼我問。
在此先感謝！
UPDATE
我弄明白怎麼辦呢
public class MainActivity extends FragmentActivity {
/**
* The number of pages (wizard steps) to show in this demo.
*/
private static final int NUM_PAGES = 3;
/**
* The pager widget, which handles animation and allows swiping horizontally to access previous
* and next wizard steps.
*/
private ViewPager mPager;
/**
* The pager adapter, which provides the pages to the view pager widget.
*/
private PagerAdapter mPagerAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
// Instantiate a ViewPager and a PagerAdapter.
mPager = (ViewPager) findViewById(R.id.pager);
mPagerAdapter = new ScreenSlidePagerAdapter(getSupportFragmentManager());
mPager.setAdapter(mPagerAdapter);
}
@Override
public void onBackPressed() {
if (mPager.getCurrentItem() == 0) {
// If the user is currently looking at the first step, allow the system to handle the
// Back button. This calls finish() on this activity and pops the back stack.
super.onBackPressed();
} else {
// Otherwise, select the previous step.
mPager.setCurrentItem(mPager.getCurrentItem() - 1);
}
}
/**
* Esto sirve para que ande el click y llevar a tal pagina ((MainActivity)getActivity()).setCurrentItem (1, true); que aparece en
* un onclicklistener de cada fragment
*/
public void setCurrentItem (int item, boolean smoothScroll) {
mPager.setCurrentItem(item, smoothScroll);
}
/**
* A simple pager adapter that represents 5 ScreenSlidePageFragment objects, in
* sequence.
*/
private class ScreenSlidePagerAdapter extends FragmentStatePagerAdapter {
public ScreenSlidePagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
Fragment b = null;
switch(position){
case 0:
b = new ListaFragment();
break;
case 1:
b = new MainFragment();
break;
case 2:
b = new nextColeFragment();
break;
}
return b;
}
@Override
public int getCount() {
return NUM_PAGES;
}
}
}