MainActivity里面有三个fragment的样子，但是呢当我第一个fragment制作了获取新闻功能之后，其它fragment都变成了空白页，请高手指点一下下，谢啦！！
新闻fragment：
其它fragment：
MainActivity:
import net.loonggg.fragment.R;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.view.Window;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.RadioGroup.OnCheckedChangeListener;
public class MainActivity extends FragmentActivity {
private Fragment[] mFragments;
private RadioGroup bottomRg;
private FragmentManager fragmentManager;
private FragmentTransaction fragmentTransaction;
private RadioButton rbOne, rbTwo, rbThree;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
mFragments = new Fragment[3];
fragmentManager = getSupportFragmentManager();
mFragments[0] = fragmentManager.findFragmentById(R.id.fragement_main);
mFragments[1] = fragmentManager.findFragmentById(R.id.fragement_bbs);
mFragments[2] = fragmentManager.findFragmentById(R.id.fragement_setting);
fragmentTransaction = fragmentManager.beginTransaction()
.hide(mFragments[0]).hide(mFragments[1]).hide(mFragments[2]);
fragmentTransaction.show(mFragments[0]).commit();
setFragmentIndicator();
}
private void setFragmentIndicator() {
bottomRg = (RadioGroup) findViewById(R.id.bottomRg);
rbOne = (RadioButton) findViewById(R.id.rbOne);
rbTwo = (RadioButton) findViewById(R.id.rbTwo);
rbThree = (RadioButton) findViewById(R.id.rbThree);
bottomRg.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
fragmentTransaction = fragmentManager.beginTransaction()
.hide(mFragments[0]).hide(mFragments[1])
.hide(mFragments[2]);
switch (checkedId) {
case R.id.rbOne:
fragmentTransaction.show(mFragments[0]).commit();
break;
case R.id.rbTwo:
fragmentTransaction.show(mFragments[1]).commit();
break;
case R.id.rbThree:
fragmentTransaction.show(mFragments[2]).commit();
break;
default:
break;
}
}
});
}
}
显示新闻的fragment：
import java.util.ArrayList;
import java.util.List;
import org.json.JSONArray;
import org.json.JSONException;
import com.askdoctor.adapter.NewsAdapter;
import com.askdoctor.constans.Constant;
import com.askdoctor.entity.News;
import com.askdoctor.utils.HttpUtils;
import net.loonggg.fragment.R;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
public class FragmentMain extends Fragment {
private NewsAdapter adapter;
private List<News> newsList;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_main, container, false);
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
ListView listNews = (ListView)getView().findViewById(R.id.list_web_view);
newsList=new ArrayList<News>();
adapter = new NewsAdapter(getActivity(),newsList);
listNews.setAdapter(adapter);
HttpUtils.getNewsJSON(Constant.URL_GET_NEWS_LIST, getNewsHandler);
}
public Handler getNewsHandler=new Handler(){
public void handleMessage(android.os.Message msg){
String jsonData=(String)msg.obj;
System.out.println(jsonData);
try {
JSONArray jsonArray=new JSONArray(jsonData);
for (int i = 0; i < jsonArray.length(); i++) {
org.json.JSONObject object = jsonArray.getJSONObject(i);
String title=object.getString("title");
String desc=object.getString("desc");
String time=object.getString("time");
String content_url=object.getString("content_url");
String pic_url=object.getString("pic_url");
newsList.add(new News(title, desc, time, content_url, pic_url));
}
//数据变化后更新adapter
adapter.notifyDataSetChanged();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
};
};
}
变成空白页的fragment：
import net.loonggg.fragment.R;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
public class FragmentBBS extends Fragment {
Button btnSendBBS;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_bbs, container, false);
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
btnSendBBS=(Button)getView().findViewById(R.id.btn_jump_submit);
initview();
}
private void initview() {
btnSendBBS.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent intent=new Intent(getActivity(),MakeBBS.class);
startActivity(intent);
}
});
}
@Override
public void onPause() {
super.onPause();
}
}
这是logcat：
03-03 20:26:52.056: E/memtrack(3342): Couldn't load memtrack module (No such file or directory)
03-03 20:26:52.056: E/android.os.Debug(3342): failed to load memtrack module: -2
03-03 20:26:52.756: E/InputDispatcher(372): channel '4a9f03c8 net.loonggg.fragment/com.askdoctor.ui.MainActivity (server)' ~ Channel is unrecoverably broken and will be disposed!
03-03 20:26:54.940: E/Icing(685): Error initializing, resetting corpora: Could not create native index
03-03 20:26:55.240: E/Icing(685): Internal init failed
03-03 20:26:55.240: E/Icing(685): Couldn't handle android.intent.action.PACKAGE_REMOVED intent due to initialization failure.
03-03 20:26:55.240: E/Icing(685): Couldn't handle android.intent.action.PACKAGE_ADDED intent due to initialization failure.
03-03 20:26:55.244: E/Icing(685): Couldn't handle android.intent.action.PACKAGE_REPLACED intent due to initialization failure.
03-03 20:26:57.100: E/memtrack(3367): Couldn't load memtrack module (No such file or directory)
03-03 20:26:57.100: E/android.os.Debug(3367): failed to load memtrack module: -2
03-03 20:26:57.944: E/memtrack(3388): Couldn't load memtrack module (No such file or directory)
03-03 20:26:57.944: E/android.os.Debug(3388): failed to load memtrack module: -2
03-03 20:32:09.552: E/CheckinTask(685): Checkin failed: https://android.clients.google.com/checkin (request #0): org.apache.http.conn.ConnectTimeoutException: Connect to /74.125.23.138:443 timed out
03-03 20:35:50.196: E/BandwidthController(138): Updating quota globalAlert failed (No such file or directory)
再次谢谢各位啦！！！
