Android 使用ViewPager时仅滑动半个片段
我有一个应用程序,我使用一个ViewPager在两个片段之间滑动。我能在两个碎片之间完美地滑动;但现在我只需要滑动片段的一半。怎么做?以下是我尝试过的: 这是我的主要活动Android 使用ViewPager时仅滑动半个片段,android,android-viewpager,Android,Android Viewpager,我有一个应用程序,我使用一个ViewPager在两个片段之间滑动。我能在两个碎片之间完美地滑动;但现在我只需要滑动片段的一半。怎么做?以下是我尝试过的: 这是我的主要活动 public class MainActivity extends FragmentActivity { MyPageAdapter pageAdapter; Context c; int[] pics = {R.drawable.ic_launcher}; @Overrid
public class MainActivity extends FragmentActivity
{
MyPageAdapter pageAdapter;
Context c;
int[] pics = {R.drawable.ic_launcher};
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
c = MainActivity.this;
pageAdapter = new MyPageAdapter(getSupportFragmentManager(), c, pics);
ViewPager pager = (ViewPager)findViewById(R.id.viewpager);
pager.setAdapter(pageAdapter);
}
}
PageAdapter.java
class MyPageAdapter extends FragmentPagerAdapter {
Context c;
int[] pics;
Fragment fragment;
public MyPageAdapter(android.support.v4.app.FragmentManager fm, Context c, int[] pics) {
super(fm);
this.c =c;
this.pics = pics;
}
@Override
public Fragment getItem(int position) {
switch(position){
case 0:return new MyFragment();
case 1: return new NewFragment();
default: return new MyFragment();
}
}
@Override
public int getCount() {
return 2;
}
}
MyFragment.java
public class MyFragment extends Fragment {
public static final String EXTRA_MESSAGE = "EXTRA_MESSAGE";
public static final MyFragment newInstance(String message,int a)
{
MyFragment f = new MyFragment();
return f;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.myfragment_layout, container, false);
TextView messageTextView = (TextView)v.findViewById(R.id.textView);
messageTextView.setText("hi");
v.setBackgroundColor(Color.parseColor("#ff0000"));
return v;
}
}
public class NewFragment extends Fragment {
public static final MyFragment newInstance(String message,int a)
{
MyFragment f = new MyFragment();
return f;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.new_fragment, container, false);
Button b1 = (Button) v.findViewById(R.id.b1);
v.setBackgroundColor(Color.parseColor("#0000ff"));
return v;
}
}
NewFragment.java
public class MyFragment extends Fragment {
public static final String EXTRA_MESSAGE = "EXTRA_MESSAGE";
public static final MyFragment newInstance(String message,int a)
{
MyFragment f = new MyFragment();
return f;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.myfragment_layout, container, false);
TextView messageTextView = (TextView)v.findViewById(R.id.textView);
messageTextView.setText("hi");
v.setBackgroundColor(Color.parseColor("#ff0000"));
return v;
}
}
public class NewFragment extends Fragment {
public static final MyFragment newInstance(String message,int a)
{
MyFragment f = new MyFragment();
return f;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.new_fragment, container, false);
Button b1 = (Button) v.findViewById(R.id.b1);
v.setBackgroundColor(Color.parseColor("#0000ff"));
return v;
}
}
覆盖
PagerAdapter
的getPageWidth
方法,使其返回0.5f代码>但它将显示两个页面的一半,我们甚至无法滑动,因为我没有正确理解您的问题。你说的“只需要滑动片段的一半”是什么意思?我的意思是必须显示整个第一个片段,但当我滑动时,第一个片段的一半和第二个片段的一半会被显示出来in@user3201291检查位置,如果它是您想要的片段,则返回0.5
否则,只是return1.0
你找到了什么方法吗?如果是,请分享