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こんにちは友人は、ビューページにフラグメントを含むAndroidアプリケーションを開発していますが、今はJSONデータをfragment.myの質問に解析したいのですが、jsonデータのサイズとして断片数を設定し、私はインターネットで何時間もそれを探していましたが、失望の結果がありましたので、助けてください。事前に感謝します。JSONデータをフラグメントに解析する方法は？
[{"c_id":13,"category_name":"PUBLICATIONS","imagename":"http://goringr.com/church_project/churchimagesnew/publications.jpg","ctype":"church"},{"c_id":14,"category_name":"YOUTH ASSOCIATION","imagename":"http://goringr.com/church_project/churchimagesnew/youthassociation.jpg","ctype":"church"}]
これは私のJSONデータであり、私が望むすべては、第2の断片でC_ID = 14を持つオブジェクトの最初のフラグメントと表示内容にC_ID = 13を持つオブジェクトの内容を表示することです。
MainActivity.java
package project1.test;
import android.content.Intent;
import android.support.design.widget.CollapsingToolbarLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
public class MainActivity extends AppCompatActivity {
public static final String data = "hello";
FragmentPagerAdapter adapterViewPager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Toolbar tool = (Toolbar)findViewById(R.id.tool);
// setSupportActionBar(tool);
// getSupportActionBar().setDisplayHomeAsUpEnabled(true);
ViewPager vpPager = (ViewPager) findViewById(R.id.vpPager);
adapterViewPager = new MyPagerAdapter(getSupportFragmentManager());
vpPager.setAdapter(adapterViewPager);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.sample_actions, menu);
return true;
}
public static class MyPagerAdapter extends FragmentPagerAdapter {
private static int NUM_ITEMS = 3;
public MyPagerAdapter(FragmentManager fragmentManager) {
super(fragmentManager);
}
// Returns total number of pages
@Override
public int getCount() {
return NUM_ITEMS;
}
// Returns the fragment to display for that page
@Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return FirstFragment.newInstance(0, "Fragment1");
case 1:
return FirstFragment.newInstance(1, "Fragment2");
case 2:
return SecondFragment.newInstance(2, "Fragment3");
default:
return null;
}
}
// Returns the page title for the top indicator
@Override
public CharSequence getPageTitle(int position) {
return "Page " + position;
}
}
}
FirstFragment
public class FirstFragment extends Fragment {
// Store instance variables
private String title;
private int page;
// newInstance constructor for creating fragment with arguments
public static FirstFragment newInstance(int page, String title) {
FirstFragment fragmentFirst = new FirstFragment();
Bundle args = new Bundle();
args.putInt("someInt", page);
args.putString("someTitle", title);
fragmentFirst.setArguments(args);
return fragmentFirst;
}
// Store instance variables based on arguments passed
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
page = getArguments().getInt("someInt", 0);
title = getArguments().getString("someTitle");
}
// Inflate the view for the fragment based on layout XML
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
;
View view = inflater.inflate(R.layout.fragment_first, container, false);
// TextView tvLabel = (TextView) view.findViewById(R.id.tvLabel);
//// tvLabel.setText(page + " -- " + title);
CollapsingToolbarLayout collapsingToolbarLayout = (CollapsingToolbarLayout)view.findViewById(R.id.collapsing_toolbar1);
collapsingToolbarLayout.setTitle("black panther");
return view;
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
// TODO Add your menu entries here
super.onCreateOptionsMenu(menu, inflater);
inflater.inflate(R.menu.sample_actions, menu);
}
}
SecondFragment
public class SecondFragment extends Fragment {
// Store instance variables
private String title;
private int page;
Button tryit;
// newInstance constructor for creating fragment with arguments
public static SecondFragment newInstance(int page, String title) {
SecondFragment fragmentSecond = new SecondFragment();
Bundle args = new Bundle();
args.putInt("someInt", page);
args.putString("someTitle", title);
fragmentSecond.setArguments(args);
return fragmentSecond;
}
// Store instance variables based on arguments passed
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
page = getArguments().getInt("someInt", 0);
title = getArguments().getString("someTitle");
}
// Inflate the view for the fragment based on layout XML
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_second, container,
false);
tryit = (Button) view.findViewById(R.id.tryit);
tryit.setOnClickListener(new Button.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(getActivity(),ManagingProfile.class);
startActivity(intent);
}
});
// TextView tvLabel = (TextView) view.findViewById(R.id.tvLabel);
// tvLabel.setText(page + " -- " + title);
return view;
}
}
どのように断片が違うのか？ –
私は初心者私はちょうど私の月の経験....私はカスタムリストビューにjsonのデータを解析する方法を知っているが、それは断片のIMに少し混乱して来るとき。 –