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我目前正在制作一本像教育目的的小型书籍，我正在使用页面查看器将信息从我的Strings.xml放在每个页面上。这是一本相当小的书，所以我这样做。我显示了所有页面，您可以轻松浏览，而不会出现任何问题。当我只想显示一定的页面间隔时，我的问题就开始了。游戏中有三个教训。在第一课中有2页（1-2），第二课有（3-9）和第三课（10-15）。共有15页信息。如何通过页面查看器显示页面的间隔
有没有办法让页面查看器只显示一定的页面间隔？
我让用户选择一个按钮，这发送了一个意向，并将其中的课程挑选给另一个名为BookActivity的类。从那里我得知想要弄清楚哪个课程被点击了，并且想要基于那个显示某些页面。这是bookActivity类。
public class BookActivity extends Activity
{
private String getLessonName;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Intent intent = getIntent();
// getting object's properties from LoginActivity class.
getLessonName = intent.getStringExtra("nameOfLesson");
MyPageAdapter adapter = new MyPageAdapter();
ViewPager myPager = (ViewPager) findViewById(R.id.myfivepanelpager);
// Button addBasicQuestionsForFirstLesson = (Button)findViewById(R.id.addBasicQuestionsButton);
myPager.setAdapter(adapter);
if(getLessonName.equals("one"))
{
myPager.setCurrentItem(0);
if(myPager.getCurrentItem() == 1)
{
myPager.setCurrentItem(1);
}
}
else if(getLessonName.equals("two"))
{
myPager.setCurrentItem(2);
if(myPager.getCurrentItem() == 8)
{
myPager.setCurrentItem(8);
}
}
else if(getLessonName.equals("three"))
{
myPager.setCurrentItem(9);
if(myPager.getCurrentItem()==14)
{
myPager.setCurrentItem(14);
}
}
}
}
非常感谢您为我着想。如果有人知道如何做这样的事情，我会非常感激。我并不想为单独的页面多项活动，如果这是有办法做到这一点更好....
class MyPageAdapter extends PagerAdapter
{
public int getCount()
{
return 15;
}
public Object instantiateItem(View collection, int position)
{
LayoutInflater inflater = (LayoutInflater) collection.getContext()
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
int resId = 0;
switch (position)
{
case 0:
resId = R.layout.activity_page_one;
break;
case 1:
// second page with button to add questions!
resId = R.layout.activity_page_two;
View view = inflater.inflate(resId, null);
LinearLayout layout = (LinearLayout) view
.findViewById(R.id.linearbasic);
Button addButton = (Button) layout
.findViewById(R.id.addBasicQuestionsButton);
((ViewPager) collection).addView(view, 0);
addButton.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
Log.d("clicked", "clclcl");
LessonActivity.
importQuestions("lessononebasicquestions");
// LessonActivity.clicked = true;
// Toast.makeText(getApplicationContext(), "yay",
// Toast.LENGTH_LONG).show();
}
});
return view;
// break;
case 2:
resId = R.layout.activity_page_three;
break;
case 3:
resId = R.layout.activity_page_four;
break;
case 4:
resId = R.layout.activity_page_five;
break;
case 5:
resId = R.layout.activity_page_six;
break;
case 6:
resId = R.layout.activity_page_seven;
break;
case 7:
resId = R.layout.activity_page_eight;
break;
case 8:
resId = R.layout.activity_page_nine;
View view2 = inflater.inflate(resId, null);
LinearLayout layout2 = (LinearLayout) view2
.findViewById(R.id.linearlife);
Button lifeCycleButton = (Button) layout2
.findViewById(R.id.addLifeCycleButton);
((ViewPager) collection).addView(view2, 0);
lifeCycleButton.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
Log.d("clicked", "clclcl");
LessonActivity
.importQuestions("lessontwolifecyclequestions");
// LessonActivity.clicked = true;
// Toast.makeText(getApplicationContext(), "yay",
// Toast.LENGTH_LONG).show();
}
});
return view2;
case 9:
resId = R.layout.activity_page_ten;
break;
case 10:
resId = R.layout.activity_page_eleven;
break;
case 11:
resId = R.layout.activity_page_twelve;
break;
case 12:
resId = R.layout.activity_page_thirteen;
break;
case 13:
resId = R.layout.activity_page_fourteen;
break;
case 14:
resId = R.layout.activity_page_fifteen;
View view3 = inflater.inflate(resId, null);
LinearLayout layout3 = (LinearLayout) view3
.findViewById(R.id.lineartools);
Button toolsButton = (Button) layout3
.findViewById(R.id.addToolsQuestionsButton);
((ViewPager) collection).addView(view3, 0);
toolsButton.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
Log.d("clicked", "clclcl");
LessonActivity.
importQuestions("lessonthreetoolsquestions");
// LessonActivity.clicked = true;
// Toast.makeText(getApplicationContext(), "yay",
// Toast.LENGTH_LONG).show();
}
});
return view3;
}
View view = inflater.inflate(resId, null);
((ViewPager) collection).addView(view, 0);
return view;
}
@Override
public void destroyItem(View arg0, int arg1, Object arg2)
{
((ViewPager) arg0).removeView((View) arg2);
}
@Override
public Parcelable saveState()
{
return null;
}
@Override
public boolean isViewFromObject(View arg0, Object arg1)
{
// TODO Auto-generated method stub
return arg0 == ((View) arg1);
}
}
再次感谢您。这是我添加的代码！
我认为你必须根据你的要求设置适配器，假设如果用户先选择课程，然后适配器将只配置两个页面数据，并再次设置myPager.setAdapter（适配器）; ，如果用户选择第二课，则适配器将使用3-9页数据进行配置，并再次设置myPager.setAdapter（适配器）;. – rajpara 2012-08-09 14:42:14
听起来很合理。好吧，我会试试这个并报告回来。 – Tastybrownies 2012-08-09 15:16:24
好吧，我试图做到这一点，并对使用什么方法感到困惑。我没有太多的页面查看器的经验。到目前为止，如果我有：myPager.setCurrentItem（2）;为什么没有setEndingItem？ :) – Tastybrownies 2012-08-09 15:39:17