我在努力奋斗着这个错误，我真的无法得到它的权利。 我尝试导入android.support.v13.app.FragmentActivity;为一类，但它给我的错误：进口android.support.v13.app.FragmentActivity不能得到解决。 我想提一提，我都V13和V4在libs文件夹。我用的清洁，Android的支持库和修复项目属性。目标设备是2.3.3如果该事项。 谢谢。我真的很希望有人能帮助我。 编辑：编辑V4后，很多错误都消失，我有只有2个。我非常初学android的，所以如果你能解释我什么是错在这里：

I'm struggling with this error and I really can't get it right. I try to import android.support.v13.app.FragmentActivity; into a class but it gives me the error: The import android.support.v13.app.FragmentActivity cannot be resolved. I want to mention that I have both v13 and v4 in libs folder. I used Clean,Android Support Library and Fix Project Properties. The target device is 2.3.3 if that matters. Thank you. I really really hope that someone can help me. After editing v4, a lot of errors are disappearing and I've got only 2 more. I'm very beginner in android so if you could explain me what is wrong here:

private class ScreenSlidePagerAdapter extends FragmentStatePagerAdapter {
    public ScreenSlidePagerAdapter(FragmentManager fm) {
        super(fm); //Error: The constructor Fragmentstagepageadapter(FragmentManager) is undefined
    }

@Override
public **Fragment** getItem(int position) { //And Here: The return type is incompatible
    return ScreenSlidePageFragment.create(position);
}

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

}

推荐答案

这是我给了一个非常类似的问题的答案：

This is the answer I gave to a very similar question:

将进口android.support.v13.app.FragmentActivity到进口android.support.v4.app.FragmentActivity

Change the "import android.support.v13.app.FragmentActivity" to "import android.support.v4.app.FragmentActivity"

对于不确定的部分，试试这个语法：

For the undefined part, try this syntax:

public class ScreenSlidePagerAdapter extends FragmentStatePagerAdapter {
public ScreenSlidePagerAdapter (android.support.v4.app.FragmentManager fm) {
    super(fm);
}

和

@Override
public android.support.v4.app.Fragment getItem(int position) {
    return ScreenSlidePagerAdapter.create(position);
}