我正在设计一个我面临问题的应用程序,
我在 MainActivity.class 中有一个字符串日期,并且有两个片段。
InboundDate &的 OutboundDate
我是通过TabLayout& amp; ViewPager,我发送日期到片段&必须通过POST请求在两个片段上调用WebServices。
以下是我在MainActivity.class中的日期,我如何将这个日期发送给片段和片段调用jsonRequest并将Recyclerview设置为两个片段或者如果我将jsonRequest调用到MainActivity本身,那么我如何显示两个片段。
date = getIntent().getStringExtra("DATE");
Log.e("DATE",""+date);
ViewPager& TabLayout代码:
private void setupViewPager(ViewPager viewPager) {
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
adapter.addFrag(new InBoundDate(),"INBOUND");
adapter.addFrag(new OutBoundDate(),"OUTBOUND");
viewPager.setAdapter(adapter);
}
//viewPager adapter ----- inbound & outbound
public class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public ViewPagerAdapter(FragmentManager manager) {
super(manager);
}
@Override
public android.support.v4.app.Fragment getItem(int position) {
return mFragmentList.get(position);
}
@Override
public int getCount() {
return mFragmentList.size();
}
public void addFrag(android.support.v4.app.Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
@Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
答案 0 :(得分:2)
我通过互联网搜索得到了这个问题的答案。 在这个问题中,我必须将 MainActivity.java 的字符串发送到同一个Activity上的片段。
注意:我们必须创建捆绑对象&amp;必须通过bundle发送字符串(任何dataType)。
我有两个片段 InBoundDate &amp;的 OutBoundDate 强>
在setupViewpager()
中的 MainActivity.java 中 private void setupViewPager(ViewPager viewPager) {
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
//bundle
bundle =new Bundle();
bundle.putString("DATE","2017-10-19");
InBoundDate frag_in = new InBoundDate();
OutBoundDate frag_out = new OutBoundDate();
frag_in.setArguments(bundle);
frag_out.setArguments(bundle);
adapter.addFrag(frag_in,"INBOUND");
adapter.addFrag(frag_out,"OUTBOUND");
viewPager.setAdapter(adapter);
}
ViewPager适配器:
//viewPager adapter ----- inbound & outbound
public class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public ViewPagerAdapter(FragmentManager manager) {
super(manager);
}
@Override
public android.support.v4.app.Fragment getItem(int position) {
return mFragmentList.get(position);
}
@Override
public int getCount() {
return mFragmentList.size();
}
public void addFrag(android.support.v4.app.Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
@Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
在你的片段中通过这种方式获取字符串:
String dateTxt;
private Bundle bundle;
//within OncreateView
bundle = this.getArguments();
dateTxt = bundle.getString("DATE");
Log.e("DATE_FRAG_INBOUND",""+dateTxt);