Question

以下是我的代码。使用ViewPager我为两个页面及其类文件制作了2个XML文件。

现在我需要点击ViewPager的First Screen，新的活动应该启动。

我有2页，所以如果我点击第一个屏幕，A.class意图被调用。如果我点击第二个屏幕，应该调用B.class意图。

代码： -

MainActvity：

public class MainActivity extends ActionBarActivity {

ViewPager mViewPager;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    mViewPager = (ViewPager) findViewById(R.id.pager);
/** set the adapter for ViewPager */
    mViewPager.setAdapter(new SamplePagerAdapter(
            getSupportFragmentManager()));
}

/** Defining a FragmentPagerAdapter class for controlling the fragments to       
be shown when user swipes on the screen. */
public class SamplePagerAdapter extends FragmentPagerAdapter {

    public SamplePagerAdapter(FragmentManager fm) {
        super(fm);
    }

    @Override
    public Fragment getItem(int position) {
        /** Show a Fragment based on the position of the current screen */
        if (position == 0) {
            return new SampleFragment();
        } else
            return new SampleFragmentTwo();
    }

    @Override
    public int getCount() {
        // Show 2 total pages.
        return 2;
    }
}
}

SampleFragment.java

public class SampleFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fragment_one, null);
    return rootView;
    }
    }

SampleFragmentTwo.java

public class SampleFragmentTwo extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fragment_two, container,
            false);
    return rootView;
}
}

CustomSwipeAdapter：

public class CustomSwipeAdapter extends PagerAdapter {

@Override
public int getCount() {
    return 0;
}

@Override
public boolean isViewFromObject(View view, Object object) {
    return false;
}

@Override
public Object instantiateItem(ViewGroup container, int position) {
    return super.instantiateItem(container, position);
}

@Override
public void destroyItem(ViewGroup container, int position, Object object) {
    super.destroyItem(container, position, object);
}


}

Answer 1

正如其中一条评论中所提到的，在你的片段类中，A和B将onClick监听器放在视图上并从那里启动意图，如下所示：

public class SampleFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fragment_one, null);
      rootView.setOnClickListener(new View.OnClickListener(){
       public void onClick(View v) {
        // do something when the button is clicked 
        Intent activityA = new Intent(getActivity(),ActivityA.class);
        startActivity(activityA);

       }
      return rootView;
    }
  }

类似于你的第二个片段。

新的活动意图onClick在viewPager幻灯片中

1 个答案: