我是这个android和java的新手。
我的 viewpager 现在可以滑动我所有的 xml 布局,但我不知道如何访问其中的项目。
我尝试使用Button mybutton = (Button) findViewById (R.layout.result)
,然后onClickListener
在 mybutton 中设置,但每次运行时它都被迫关闭。
这是我的代码:
public class main extends Activity {
private ViewPager myviewpager;
private ViewPagerAdapter myviewpageradapter;
private static int NUM_AWESOME_VIEWS = 12;
Button button_1;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
myviewpageradapter = new ViewPagerAdapter();
myviewpager = (ViewPager) findViewById(R.id.myviewpager);
myviewpager.setAdapter(myviewpageradapter);
button_1 = (Button) myviewpager.findViewById(R.id.first_button);
button_1.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
finish();
}
});
}
private class ViewPagerAdapter extends PagerAdapter {
@Override
public int getCount() {
return NUM_AWESOME_VIEWS;
}
@Override
public Object instantiateItem(View collection, int position) {
LayoutInflater layoutinflater = getLayoutInflater();
View view;
view = layoutinflater.inflate(R.layout.page1, null);
switch (position)
{
case 0 : view = layoutinflater.inflate(R.layout.page1, null); break;
case 1 : view = layoutinflater.inflate(R.layout.page2, null); break;
case 2 : view = layoutinflater.inflate(R.layout.page3, null); break;
case 3 : view = layoutinflater.inflate(R.layout.page4, null); break;
case 4 : view = layoutinflater.inflate(R.layout.page5, null); break;
case 5 : view = layoutinflater.inflate(R.layout.page6, null); break;
case 6 : view = layoutinflater.inflate(R.layout.page7, null); break;
case 7 : view = layoutinflater.inflate(R.layout.page8, null); break;
case 8 : view = layoutinflater.inflate(R.layout.page9, null); break;
case 9 : view = layoutinflater.inflate(R.layout.page10, null); break;
case 10 : view = layoutinflater.inflate(R.layout.page11, null); break;
case 11 : view = layoutinflater.inflate(R.layout.result, null);break;
}
((ViewPager) collection).addView(view,0);
return view;
}
@Override
public void destroyItem(View collection, int position, Object view) {
((ViewPager) collection).removeView((View) view);
}
@Override
public boolean isViewFromObject(View view, Object object) {
return view==((View)object);
}
@Override
public void finishUpdate(View arg0) {}
@Override
public void restoreState(Parcelable arg0, ClassLoader arg1) {}
@Override
public Parcelable saveState() {
return null;
}
@Override
public void startUpdate(View arg0) {}
}