我有一个 MainActivity 和一个名为 Frags 的片段，该片段本身有一个名为 CardFrontFragment 的片段。
我在此片段（子片段）上注册了一个 OnClickListener，并在此 OnClickListener 的 OnClick 方法中我将此片段（CardFrontFragment）替换为 CardbackFragment 片段。另外，我也在这个片段（CardbackFragment）上注册了一个 OnClickListener，以便再次在此片段与子片段之间切换。
第一个片段（CardfrontFragment）中的 OnClickListener 工作并且显示第二个片段，但现在单击第二个片段没有任何反应，OnClickListener 不适用于第二个片段，这让我很痛苦，请帮助我！
Code:
MainActivity.java
public class MainActivity extends ActionBarActivity {
public static Frags frag=new Frags();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.container, frag)
.commit();
}
}
}
Frags.java
public class Frags extends Fragment{
CardBackFragment back=new CardBackFragment();
CardFrontFragment front=new CardFrontFragment();
View view;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view;
view=inflater.inflate(R.layout.frag_layout, container, false);
getChildFragmentManager().beginTransaction()
.add(R.id.frag_container, back)
.commit();
return view;
}
public void Onflip(boolean iSback)
{
if(iSback)
{
getChildFragmentManager().beginTransaction()
.setCustomAnimations(
R.animator.card_flip_right_in, R.animator.card_flip_right_out,
R.animator.card_flip_right_in, R.animator.card_flip_right_out)
.replace(R.id.frag_container, front)
.commit();
}
else
{
getChildFragmentManager().beginTransaction()
.setCustomAnimations(
R.animator.card_flip_right_in, R.animator.card_flip_right_out,
R.animator.card_flip_right_in, R.animator.card_flip_right_out)
.replace(R.id.frag_container, back)
.commit();
}
}
}
卡片正面片段
public class CardFrontFragment extends Fragment {
public CardFrontFragment() {
}
View view;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
view=inflater.inflate(R.layout.fragment_card_front, container, false);
view.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View arg0) {
MainActivity.frag.Onflip(false);
Log.i("front","onclick");
}
});
return view;
}
}
卡背片段
public class CardBackFragment extends Fragment {
public CardBackFragment() {
}
View view;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
view=inflater.inflate(R.layout.fragment_card_back, container, false);
view.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View arg0) {
MainActivity.frag.Onflip(false);
Log.i("back","onclick");
}
});
return view;
}
}
xml:
fragment_card_front.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#0000ff" >
<Button
android:id="@+id/front_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button" />
</LinearLayout>
fragment_card_back.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#000000" >
<Button
android:id="@+id/back_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button" />
</LinearLayout>
Frag_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="@+id/frag_container">
</LinearLayout>
活动主文件
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.demokhar.MainActivity"
tools:ignore="MergeRootFrame" />
