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我有這個問題:當我改變片段時,下面的TextView保持不變,結果是2 TextView。更改片段,但文本雷達android
我清楚地解釋:
我有一個TextView的帶有字符串「Hello字」
當我改變片段我想改變整個頁面,並設置其它的TextView但結果是2的TextView
非常感謝!
activityMain.xml:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<FrameLayout
android:id="@+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<include
layout="@layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="@layout/nav_header_main"
app:menu="@menu/activity_main_drawer"/>
</android.support.v4.widget.DrawerLayout>
fragment.xml之:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:gravity="center"
android:background="#5ba4e5"
android:layout_height="match_parent"
android:id="@+id/fragment">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="40px"
android:textColor="#ffffff"
android:layout_gravity="center"
android:id="@+id/fragmentText"
/>
</LinearLayout>
在MainActivity
此改變的片段:
private void selectItem(int id) {
// update the main content by replacing fragments
Fragment fragment = new MyFragment();
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit();
}
,這是MyFragment.java:
public class MyFragment extends Fragment {
public MyFragment() {
// Empty constructor required for fragment subclasses
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment, container, false);
// String planet = getResources().getStringArray(R.array.planets_array)[i];
String planet = "prova fragment";
int imageId = getResources().getIdentifier(planet.toLowerCase(Locale.getDefault()),
"drawable", getActivity().getPackageName());
((TextView) rootView.findViewById(R.id.fragmentText)).setText(planet);
return rootView;
}
}
你的代碼是什麼?如果你嘗試並有錯誤PLZ發送錯誤... –
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我不能添加更多的代碼.... –