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私は自分の問題について他のトピックを読んでいますが、私の問題の理由を理解することはできません。フラグメントを別のものに置き換えることはできません
私は、ListViewが左側にあるアクティビティを持っています。私は、フラグメントのリストビュー用のアダプタを作成している
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dip"
android:layout_weight="1"
android:orientation="horizontal" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="3"
android:orientation="vertical" >
<TextView
android:id="@+id/textViewCategoryTitle"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:layout_weight="10"
android:background="@drawable/in_progress_background"
android:gravity="center" />
<ListView
android:id="@+id/listViewQuestionsGroup"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1" />
</LinearLayout>
<fragment
android:id="@+id/fragmentQuestions"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
class="com.firm.bonjour.visite.QuestionsFragment" />
</LinearLayout>
<Button
android:id="@+id/buttonValidate"
style="@style/ButtonsValidation"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|right"
android:text="@string/validate" />
</LinearLayout>
：右側にあなたがactivity_question.xml上でそれを見ることができるようListFragmentです
public class QuestionsAdapter extends BaseAdapter {
private QuestionsBean questions = null;
private LayoutInflater inflater = null;
public QuestionsAdapter(LayoutInflater inflater) {
this.inflater = inflater;
}
@Override
public int getCount() {
return (questions != null && questions.getQuestionList() != null) ? questions.getQuestionList().size() : 0;
}
@Override
public Object getItem(int position) {
return (questions != null && questions.getQuestionList() != null) ? questions.getQuestionList().get(position) : null;
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
holder = new ViewHolder();
convertView = inflater.inflate(R.layout.item_fragment_question, null);
holder.question = (TextView) convertView.findViewById(R.id.questionsLayout);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.question.setText(((QuestionsBean) questions).getQuestionList().get(position).getQuestion());
return convertView;
}
private class ViewHolder {
TextView question;
}
public void setQuestions(QuestionsBean questions) {
this.questions = questions;
notifyDataSetChanged();
}
}
私が活動を開始
、Iリストビューの左側にある最初のアイテムを選択して、フラグメントに詳細を表示します。 左側のListViewのアイテムの1つをクリックすると、フラグメントは変更されません。 私はdebugg modにいるとき、私はアダプタが表示するために適切なオブジェクトを取得することがわかります。新しいフラグメントが表示されない理由はありますか？
My活動コード：
public class QuestionsActivity extends Activity implements OnItemClickListener {
public static final String QUESTIONS_LIST = "questionsList";
public static final String QUESTIONS = "questions";
private CategoryBean category;
private ListView questionsGroupListView;
private Fragment questionsFragment;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_questions);
category = (CategoryBean) getIntent().getExtras().get(MainActivity.CATEGORY);
questionsGroupListView = (ListView) findViewById(R.id.listViewQuestionsGroup);
QuestionListAdapter adapter = new QuestionListAdapter(this, category);
questionsGroupListView.setAdapter(adapter);
questionsGroupListView.setOnItemClickListener(this);
if (getFragmentManager().findFragmentById(R.id.fragmentQuestions) == null) {
questionsFragment = new QuestionsFragment();
getFragmentManager().beginTransaction().add(R.layout.activity_questions, questionsFragment).commit();
} else {
questionsFragment = getFragmentManager().findFragmentById(R.id.fragmentQuestions);
}
}
/**
* Called when a number gets clicked
*/
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
displayFragment((QuestionsBean)questionsGroupListView.getItemAtPosition(position));
}
@Override
protected void onResume() {
super.onResume();
if(questionsFragment != null && category.getCategoryList() != null && !category.getCategoryList().isEmpty()) {
((QuestionsFragment)questionsFragment).refresh((QuestionsBean)category.getCategoryList().get(0));
} else {
Log.v("BUGGGGG", "PAS NORMAL !!!");
}
}
/**
* Add a Fragment to our stack with n Androids in it
*/
private void displayFragment(QuestionsBean questions) {
Fragment fragment = QuestionsFragment.newInstance(questions);
FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.fragmentQuestions, fragment);
fragmentTransaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN);
fragmentTransaction.commit();
}
}
マイListFragmentコード：
public class QuestionsFragment extends ListFragment {
private LayoutInflater inflater;
private QuestionsAdapter adapter;
private QuestionsBean questions;
/**
* Create a new instance of DetailsFragment, initialized to show the text at 'index'.
*/
public static QuestionsFragment newInstance(QuestionsBean questions) {
QuestionsFragment questionFragment = new QuestionsFragment();
// Supply index input as an argument.
Bundle args = new Bundle();
args.putSerializable(QuestionsActivity.QUESTIONS, questions);
questionFragment.setArguments(args);
return questionFragment;
}
public int getShownIndex() {
return getArguments() != null ? getArguments().getInt("index", 0) : 0;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
this.inflater = inflater;
this.adapter = new QuestionsAdapter(inflater);
View questionsView = (LinearLayout) inflater.inflate(R.layout.layout_fragment_question, null);
setListAdapter(adapter);
return questionsView;
}
@Override
public void onResume() {
super.onResume();
if (getArguments() != null && getArguments().getSerializable(QuestionsActivity.QUESTIONS) != null) {
this.questions = (QuestionsBean) getArguments().getSerializable(QuestionsActivity.QUESTIONS);
adapter.setQuestions((QuestionsBean) getArguments().getSerializable(QuestionsActivity.QUESTIONS));
} else {
adapter.setQuestions(questions);
}
}
@Override
public void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
}
public void refresh(QuestionsBean questions) {
if (getArguments() != null && getArguments().getSerializable(QuestionsActivity.QUESTIONS) != null) {
this.questions = (QuestionsBean) getArguments().getSerializable(QuestionsActivity.QUESTIONS);
} else {
this.questions = questions;
}
}
}
私は本当にすべてのヘルプは本当に感謝される...今何時間も立ち往生しています:)
お待ちください、あなたの断片が全く表示されない、または更新されていないとお伝えしますか？ –